Huawei EMU Operation & User’s Manual

EMU
V100R001
User Guide
Issue
13
Date
2009-12-30
Huawei Proprietary and Confidential
Copyright © Huawei Technologies Co., Ltd.

EMU
V100R001
User Guide
Issue
13
Date
2009-12-30
Huawei Proprietary and Confidential
Copyright © Huawei Technologies Co., Ltd.

Huawei Technologies Co., Ltd. provides customers with comprehensive technical support and service. For any
assistance, please contact our local office or company headquarters.
Huawei Technologies Co., Ltd.
Address:
Huawei Industrial Base
Bantian, Longgang
Shenzhen 518129
People's Republic of China
Website:
http://www.huawei.com
Email:
[email protected]
Copyright © Huawei Technologies Co., Ltd. 2009. All rights reserved.
No part of this document may be reproduced or transmitted in any form or by any means without prior written
consent of Huawei Technologies Co., Ltd.
Trademarks and Permissions
 and other Huawei trademarks are the property of Huawei Technologies Co., Ltd.
All other trademarks and trade names mentioned in this document are the property of their respective holders.
Notice
The purchased products, services and features are stipulated by the contract made between Huawei and the
customer. All or part of the products, services and features described in this document may not be within the
purchase scope or the usage scope. Unless otherwise specified in the contract, all statements, information,
and recommendations in this document are provided "AS IS" without warranties, guarantees or representations
of any kind, either express or implied.
The information in this document is subject to change without notice. Every effort has been made in the
preparation of this document to ensure accuracy of the contents, but all statements, information, and
recommendations in this document do not constitute the warranty of any kind, express or implied.
Huawei Proprietary and Confidential
Copyright © Huawei Technologies Co., Ltd.

Huawei Technologies Co., Ltd. provides customers with comprehensive technical support and service. For any
assistance, please contact our local office or company headquarters.
Huawei Technologies Co., Ltd.
Address:
Huawei Industrial Base
Bantian, Longgang
Shenzhen 518129
People's Republic of China
Website:
http://www.huawei.com
Email:
[email protected]
Copyright © Huawei Technologies Co., Ltd. 2009. All rights reserved.
No part of this document may be reproduced or transmitted in any form or by any means without prior written
consent of Huawei Technologies Co., Ltd.
Trademarks and Permissions
 and other Huawei trademarks are the property of Huawei Technologies Co., Ltd.
All other trademarks and trade names mentioned in this document are the property of their respective holders.
Notice
The purchased products, services and features are stipulated by the contract made between Huawei and the
customer. All or part of the products, services and features described in this document may not be within the
purchase scope or the usage scope. Unless otherwise specified in the contract, all statements, information,
and recommendations in this document are provided "AS IS" without warranties, guarantees or representations
of any kind, either express or implied.
The information in this document is subject to change without notice. Every effort has been made in the
preparation of this document to ensure accuracy of the contents, but all statements, information, and
recommendations in this document do not constitute the warranty of any kind, express or implied.
Huawei Proprietary and Confidential
Copyright © Huawei Technologies Co., Ltd.

Contents
About This Document.....................................................................................................................1
1 Changes in the EMU User Guide............................................................................................1-1
2 Overview of the EMU................................................................................................................2-1
2.1 Functions of the EMU.....................................................................................................................................2-2
2.2 Exterior of the EMU........................................................................................................................................2-2
2.3 Internal Structure of the EMU.........................................................................................................................2-5
2.4 Communication Ports on the EMU.................................................................................................................2-7
2.4.1 RS485 Serial Port...................................................................................................................................2-7
2.4.2 RS232 Serial Port...................................................................................................................................2-8
2.5 Monitoring Ports of the EMU.........................................................................................................................2-9
2.5.1 Monitoring Port for the Water Sensor..................................................................................................2-10
2.5.2 Monitoring Port for the Smoke Sensor................................................................................................2-11
2.5.3 Monitoring Port for the Infrared Sensor...............................................................................................2-12
2.5.4 Monitoring Port for the Door Status Sensor.........................................................................................2-13
2.5.5 Monitoring Port for the Humidity/Temperature Sensor.......................................................................2-13
2.5.6 Monitoring Port for Boolean Signals...................................................................................................2-14
2.5.7 Monitoring Port for Analog Signals.....................................................................................................2-16
2.5.8 Monitoring Port for the Relay Node Boolean Signals.........................................................................2-17
2.6 Technical Specifications of the EMU...........................................................................................................2-19
3 Introduction to the Sensors......................................................................................................3-1
3.1 Water Sensor...................................................................................................................................................3-2
3.2 Smoke Sensor..................................................................................................................................................3-2
3.3 Infrared Sensor................................................................................................................................................3-4
3.4 Door Status Sensor..........................................................................................................................................3-5
3.5 Humidity/Temperature Sensor........................................................................................................................3-7
3.6 Self-Selected Sensors......................................................................................................................................3-8
4 Installing the EMU.....................................................................................................................4-1
4.1 Installing EMU Model A.................................................................................................................................4-4
4.2 Installing EMU Model B.................................................................................................................................4-5
5 Installing the Sensors................................................................................................................5-1
5.1 Installing the Water Sensor.............................................................................................................................5-3
EMU
User Guide
Contents
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Copyright © Huawei Technologies Co., Ltd.
i

Contents
About This Document.....................................................................................................................1
1 Changes in the EMU User Guide............................................................................................1-1
2 Overview of the EMU................................................................................................................2-1
2.1 Functions of the EMU.....................................................................................................................................2-2
2.2 Exterior of the EMU........................................................................................................................................2-2
2.3 Internal Structure of the EMU.........................................................................................................................2-5
2.4 Communication Ports on the EMU.................................................................................................................2-7
2.4.1 RS485 Serial Port...................................................................................................................................2-7
2.4.2 RS232 Serial Port...................................................................................................................................2-8
2.5 Monitoring Ports of the EMU.........................................................................................................................2-9
2.5.1 Monitoring Port for the Water Sensor..................................................................................................2-10
2.5.2 Monitoring Port for the Smoke Sensor................................................................................................2-11
2.5.3 Monitoring Port for the Infrared Sensor...............................................................................................2-12
2.5.4 Monitoring Port for the Door Status Sensor.........................................................................................2-13
2.5.5 Monitoring Port for the Humidity/Temperature Sensor.......................................................................2-13
2.5.6 Monitoring Port for Boolean Signals...................................................................................................2-14
2.5.7 Monitoring Port for Analog Signals.....................................................................................................2-16
2.5.8 Monitoring Port for the Relay Node Boolean Signals.........................................................................2-17
2.6 Technical Specifications of the EMU...........................................................................................................2-19
3 Introduction to the Sensors......................................................................................................3-1
3.1 Water Sensor...................................................................................................................................................3-2
3.2 Smoke Sensor..................................................................................................................................................3-2
3.3 Infrared Sensor................................................................................................................................................3-4
3.4 Door Status Sensor..........................................................................................................................................3-5
3.5 Humidity/Temperature Sensor........................................................................................................................3-7
3.6 Self-Selected Sensors......................................................................................................................................3-8
4 Installing the EMU.....................................................................................................................4-1
4.1 Installing EMU Model A.................................................................................................................................4-4
4.2 Installing EMU Model B.................................................................................................................................4-5
5 Installing the Sensors................................................................................................................5-1
5.1 Installing the Water Sensor.............................................................................................................................5-3
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5.2 Installing the Smoke Sensor............................................................................................................................5-4
5.3 Installing the Infrared Sensor..........................................................................................................................5-7
5.4 Installing the Door Status Sensor....................................................................................................................5-8
5.5 Installing the Humidity/Temperature Sensor................................................................................................5-10
6 Commissioning the EMU......................................................................................................... 6-1
7 Handling Common Faults........................................................................................................7-1
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5.2 Installing the Smoke Sensor............................................................................................................................5-4
5.3 Installing the Infrared Sensor..........................................................................................................................5-7
5.4 Installing the Door Status Sensor....................................................................................................................5-8
5.5 Installing the Humidity/Temperature Sensor................................................................................................5-10
6 Commissioning the EMU......................................................................................................... 6-1
7 Handling Common Faults........................................................................................................7-1
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Issue 13 (2009-12-30)

Figures
Figure 2-1 Exterior of EMU model A..................................................................................................................2-3
Figure 2-2 Front panel of EMU model A.............................................................................................................2-3
Figure 2-3 Exterior of EMU model B..................................................................................................................2-4
Figure 2-4 Front panel of EMU model B.............................................................................................................2-4
Figure 2-5 Board layout inside the EMU.............................................................................................................2-5
Figure 2-6 Pins of the RS485 serial port socket...................................................................................................2-7
Figure 2-7 Pins of the RS232 serial port socket...................................................................................................2-8
Figure 2-8 Monitoring port for the water sensor................................................................................................2-10
Figure 2-9 Monitoring port for the smoke sensor..............................................................................................2-11
Figure 2-10 Monitoring port for the infrared sensor..........................................................................................2-12
Figure 2-11 Monitoring port for the door status sensor.....................................................................................2-13
Figure 2-12 Monitoring port for the humidity/temperature sensor....................................................................2-14
Figure 2-13 Monitoring port for Boolean signals..............................................................................................2-15
Figure 2-14 Monitoring port for analog signals.................................................................................................2-16
Figure 2-15 Connecting the analog sensor of the voltage type..........................................................................2-17
Figure 2-16 Connecting the analog sensor of the current type...........................................................................2-17
Figure 2-17 Monitoring Port for the relay node Boolean signals.......................................................................2-18
Figure 2-18 Cable connection of the relay node................................................................................................2-19
Figure 3-1 Exterior of the YW517B water sensor................................................................................................3-2
Figure 3-2 Exterior of the JTY-GD-01K smoke sensor.......................................................................................3-3
Figure 3-3 Exterior of the MC-760T infrared sensor...........................................................................................3-4
Figure 3-4 Exterior of the AGX105F door status sensor.....................................................................................3-5
Figure 3-5 Exterior of the HO-03A door status sensor........................................................................................3-6
Figure 3-6 Working principle of the AGX105F door status sensor.....................................................................3-6
Figure 3-7 Exterior of the WS302A1T4 humidity/temperature sensor................................................................3-7
Figure 3-8 Relations between the humidity and output current...........................................................................3-9
Figure 3-9 Relations between the temperature and output current.......................................................................3-9
Figure 4-1 Installation positions of the EMU and sensors...................................................................................4-2
Figure 4-2 RS485 serial cable..............................................................................................................................4-4
Figure 4-3 RS485 serial cable..............................................................................................................................4-5
Figure 4-4 Power cable.........................................................................................................................................4-5
Figure 4-5 RS485 serial cable..............................................................................................................................4-6
Figure 4-6 Pushing the expansion tubes into the installation holes.....................................................................4-7
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Figures
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Figures
Figure 2-1 Exterior of EMU model A..................................................................................................................2-3
Figure 2-2 Front panel of EMU model A.............................................................................................................2-3
Figure 2-3 Exterior of EMU model B..................................................................................................................2-4
Figure 2-4 Front panel of EMU model B.............................................................................................................2-4
Figure 2-5 Board layout inside the EMU.............................................................................................................2-5
Figure 2-6 Pins of the RS485 serial port socket...................................................................................................2-7
Figure 2-7 Pins of the RS232 serial port socket...................................................................................................2-8
Figure 2-8 Monitoring port for the water sensor................................................................................................2-10
Figure 2-9 Monitoring port for the smoke sensor..............................................................................................2-11
Figure 2-10 Monitoring port for the infrared sensor..........................................................................................2-12
Figure 2-11 Monitoring port for the door status sensor.....................................................................................2-13
Figure 2-12 Monitoring port for the humidity/temperature sensor....................................................................2-14
Figure 2-13 Monitoring port for Boolean signals..............................................................................................2-15
Figure 2-14 Monitoring port for analog signals.................................................................................................2-16
Figure 2-15 Connecting the analog sensor of the voltage type..........................................................................2-17
Figure 2-16 Connecting the analog sensor of the current type...........................................................................2-17
Figure 2-17 Monitoring Port for the relay node Boolean signals.......................................................................2-18
Figure 2-18 Cable connection of the relay node................................................................................................2-19
Figure 3-1 Exterior of the YW517B water sensor................................................................................................3-2
Figure 3-2 Exterior of the JTY-GD-01K smoke sensor.......................................................................................3-3
Figure 3-3 Exterior of the MC-760T infrared sensor...........................................................................................3-4
Figure 3-4 Exterior of the AGX105F door status sensor.....................................................................................3-5
Figure 3-5 Exterior of the HO-03A door status sensor........................................................................................3-6
Figure 3-6 Working principle of the AGX105F door status sensor.....................................................................3-6
Figure 3-7 Exterior of the WS302A1T4 humidity/temperature sensor................................................................3-7
Figure 3-8 Relations between the humidity and output current...........................................................................3-9
Figure 3-9 Relations between the temperature and output current.......................................................................3-9
Figure 4-1 Installation positions of the EMU and sensors...................................................................................4-2
Figure 4-2 RS485 serial cable..............................................................................................................................4-4
Figure 4-3 RS485 serial cable..............................................................................................................................4-5
Figure 4-4 Power cable.........................................................................................................................................4-5
Figure 4-5 RS485 serial cable..............................................................................................................................4-6
Figure 4-6 Pushing the expansion tubes into the installation holes.....................................................................4-7
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Figures
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Figure 4-7 Fastening the tapping screws..............................................................................................................4-7
Figure 4-8 RS485 serial cable..............................................................................................................................4-8
Figure 4-9 Power cable.........................................................................................................................................4-8
Figure 5-1 Installation positions of the EMU and sensors...................................................................................5-2
Figure 5-2 Installing the water sensor..................................................................................................................5-3
Figure 5-3 Connecting the water sensor...............................................................................................................5-4
Figure 5-4 Installation of the smoke sensor......................................................................................................... 5-6
Figure 5-5 Connecting the smoke sensor.............................................................................................................5-7
Figure 5-6 Connecting the infrared sensor...........................................................................................................5-8
Figure 5-7 Connecting the AGX105F door status sensor.................................................................................... 5-9
Figure 5-8 Connecting the HO-03A door status sensor.......................................................................................5-9
Figure 5-9 Connecting the humidity/temperature sensor...................................................................................5-11
Figures
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Figure 4-7 Fastening the tapping screws..............................................................................................................4-7
Figure 4-8 RS485 serial cable..............................................................................................................................4-8
Figure 4-9 Power cable.........................................................................................................................................4-8
Figure 5-1 Installation positions of the EMU and sensors...................................................................................5-2
Figure 5-2 Installing the water sensor..................................................................................................................5-3
Figure 5-3 Connecting the water sensor...............................................................................................................5-4
Figure 5-4 Installation of the smoke sensor......................................................................................................... 5-6
Figure 5-5 Connecting the smoke sensor.............................................................................................................5-7
Figure 5-6 Connecting the infrared sensor...........................................................................................................5-8
Figure 5-7 Connecting the AGX105F door status sensor.................................................................................... 5-9
Figure 5-8 Connecting the HO-03A door status sensor.......................................................................................5-9
Figure 5-9 Connecting the humidity/temperature sensor...................................................................................5-11
Figures
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Tables
Table 2-1 Functions and settings of the DIP switches on the panel of the EMU.................................................2-6
Table 2-2 Meanings of the pins of the RS485 serial port socket..........................................................................2-8
Table 2-3 Meanings of the pins of the RS232 serial port socket..........................................................................2-9
Table 2-4 Meanings of the terminals of the monitoring port for the water sensor.............................................2-10
Table 2-5 Meanings of the terminals of the monitoring port for the smoke sensor...........................................2-11
Table 2-6 Meanings of the terminals of the monitoring port for the infrared sensor.........................................2-12
Table 2-7 Meanings of the terminals of the monitoring port for the door status sensor....................................2-13
Table 2-8 Meanings of the terminals of the monitoring port for the humidity/temperature sensor...................2-14
Table 2-9 Valid values of Boolean signals of the voltage type..........................................................................2-15
Table 2-10 Meanings of the terminals of the monitoring port for Boolean signals...........................................2-15
Table 2-11 Meanings of the terminals of the monitoring port for analog signals..............................................2-16
Table 2-12 Meanings of the terminals of the monitoring port for relay node Boolean signals..........................2-18
Table 2-13 Technical specifications of the EMU...............................................................................................2-19
Table 2-14 Performance specifications of the EMU..........................................................................................2-20
Table 3-1 Technical specifications of the YW517B water sensor.......................................................................3-2
Table 3-2 Indicator on the smoke sensor..............................................................................................................3-3
Table 3-3 Technical specifications of the JTY-GD-01K smoke sensor...............................................................3-3
Table 3-4 Technical specifications of the MC-760T infrared sensor...................................................................3-5
Table 3-5 Technical specifications of the AGX105F door status sensor.............................................................3-7
Table 3-6 Technical specifications of the HO-03A door status sensor................................................................3-7
Table 3-7 Technical specifications of the WS302A1T4 humidity/temperature sensor........................................3-8
Table 4-1 List of items inside the package of the EMU.......................................................................................4-2
Table 5-1 3-core leading cable of the water sensor..............................................................................................5-4
Table 7-1 Solutions to common faults in the EMU..............................................................................................7-1
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Tables
Table 2-1 Functions and settings of the DIP switches on the panel of the EMU.................................................2-6
Table 2-2 Meanings of the pins of the RS485 serial port socket..........................................................................2-8
Table 2-3 Meanings of the pins of the RS232 serial port socket..........................................................................2-9
Table 2-4 Meanings of the terminals of the monitoring port for the water sensor.............................................2-10
Table 2-5 Meanings of the terminals of the monitoring port for the smoke sensor...........................................2-11
Table 2-6 Meanings of the terminals of the monitoring port for the infrared sensor.........................................2-12
Table 2-7 Meanings of the terminals of the monitoring port for the door status sensor....................................2-13
Table 2-8 Meanings of the terminals of the monitoring port for the humidity/temperature sensor...................2-14
Table 2-9 Valid values of Boolean signals of the voltage type..........................................................................2-15
Table 2-10 Meanings of the terminals of the monitoring port for Boolean signals...........................................2-15
Table 2-11 Meanings of the terminals of the monitoring port for analog signals..............................................2-16
Table 2-12 Meanings of the terminals of the monitoring port for relay node Boolean signals..........................2-18
Table 2-13 Technical specifications of the EMU...............................................................................................2-19
Table 2-14 Performance specifications of the EMU..........................................................................................2-20
Table 3-1 Technical specifications of the YW517B water sensor.......................................................................3-2
Table 3-2 Indicator on the smoke sensor..............................................................................................................3-3
Table 3-3 Technical specifications of the JTY-GD-01K smoke sensor...............................................................3-3
Table 3-4 Technical specifications of the MC-760T infrared sensor...................................................................3-5
Table 3-5 Technical specifications of the AGX105F door status sensor.............................................................3-7
Table 3-6 Technical specifications of the HO-03A door status sensor................................................................3-7
Table 3-7 Technical specifications of the WS302A1T4 humidity/temperature sensor........................................3-8
Table 4-1 List of items inside the package of the EMU.......................................................................................4-2
Table 5-1 3-core leading cable of the water sensor..............................................................................................5-4
Table 7-1 Solutions to common faults in the EMU..............................................................................................7-1
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About This Document
Purpose
This document describes the exterior, interfaces, functions, and sensors of the EMU. In addition,
this document describes how to install the EMU and the sensors.
Product Version
The following table lists the product version related to this document.
Product Name
Product Version
QCKG1EMU
V100R001
Intended Audience
This document is intended for:
l
NodeB/BTS Installer
l
System Engineer
l
Site Maintainer
Change History
For changes made in this document, refer to 1 Changes in the EMU User Guide.
Organization
1 Changes in the EMU User Guide
This describes the changes in the EMU User Guide.
2 Overview of the EMU
EMU
User Guide
About This Document
Issue 13 (2009-12-30)
Huawei Proprietary and Confidential
Copyright © Huawei Technologies Co., Ltd.
1

About This Document
Purpose
This document describes the exterior, interfaces, functions, and sensors of the EMU. In addition,
this document describes how to install the EMU and the sensors.
Product Version
The following table lists the product version related to this document.
Product Name
Product Version
QCKG1EMU
V100R001
Intended Audience
This document is intended for:
l
NodeB/BTS Installer
l
System Engineer
l
Site Maintainer
Change History
For changes made in this document, refer to 1 Changes in the EMU User Guide.
Organization
1 Changes in the EMU User Guide
This describes the changes in the EMU User Guide.
2 Overview of the EMU
EMU
User Guide
About This Document
Issue 13 (2009-12-30)
Huawei Proprietary and Confidential
Copyright © Huawei Technologies Co., Ltd.
1

Applicable to all types of BTSs/NodeBs manufactured by Huawei, the EMU is used to monitor
the environment in the equipment room.
3 Introduction to the Sensors
The sensors provided by Huawei can be used directly. The sensors not provided by Huawei can
be used only if their specifications meet the requirements.
4 Installing the EMU
This describes how to install the EMU.
5 Installing the Sensors
The installation methods of the sensors provided by Huawei are described here. For the sensors
not provided by Huawei, see their respective instructions during installation.
6 Commissioning the EMU
This describes how to commission the EMU.
7 Handling Common Faults
This describes the solutions to common faults in the EMU.
Conventions
Symbol Conventions
The symbols that may be found in this document are defined as follows.
Symbol
Description
Indicates a hazard with a high level of risk, which if not
avoided,will result in death or serious injury.
Indicates a hazard with a medium or low level of risk, which
if not avoided, could result in minor or moderate injury.
Indicates a potentially hazardous situation, which if not
avoided,could result in equipment damage, data loss,
performance degradation, or unexpected results.
Indicates a tip that may help you solve a problem or save
time.
Provides additional information to emphasize or supplement
important points of the main text.
General Conventions
The general conventions that may be found in this document are defined as follows.
Organization
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Applicable to all types of BTSs/NodeBs manufactured by Huawei, the EMU is used to monitor
the environment in the equipment room.
3 Introduction to the Sensors
The sensors provided by Huawei can be used directly. The sensors not provided by Huawei can
be used only if their specifications meet the requirements.
4 Installing the EMU
This describes how to install the EMU.
5 Installing the Sensors
The installation methods of the sensors provided by Huawei are described here. For the sensors
not provided by Huawei, see their respective instructions during installation.
6 Commissioning the EMU
This describes how to commission the EMU.
7 Handling Common Faults
This describes the solutions to common faults in the EMU.
Conventions
Symbol Conventions
The symbols that may be found in this document are defined as follows.
Symbol
Description
Indicates a hazard with a high level of risk, which if not
avoided,will result in death or serious injury.
Indicates a hazard with a medium or low level of risk, which
if not avoided, could result in minor or moderate injury.
Indicates a potentially hazardous situation, which if not
avoided,could result in equipment damage, data loss,
performance degradation, or unexpected results.
Indicates a tip that may help you solve a problem or save
time.
Provides additional information to emphasize or supplement
important points of the main text.
General Conventions
The general conventions that may be found in this document are defined as follows.
Organization
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Convention
Description
Times New Roman
Normal paragraphs are in Times New Roman.
Boldface
Names of files, directories, folders, and users are in
boldface. For example, log in as user root.
Italic
Book titles are in italics.
Courier New
Examples of information displayed on the screen are in
Courier New.
Command Conventions
The command conventions that may be found in this document are defined as follows.
Convention
Description
Boldface
The keywords of a command line are in boldface.
Italic
Command arguments are in italics.
[ ]
Items (keywords or arguments) in brackets [ ] are optional.
{ x | y | ... }
Optional items are grouped in braces and separated by
vertical bars. One item is selected.
[ x | y | ... ]
Optional items are grouped in brackets and separated by
vertical bars. One item is selected or no item is selected.
{ x | y | ... }*
Optional items are grouped in braces and separated by
vertical bars. A minimum of one item or a maximum of all
items can be selected.
[ x | y | ... ]*
Optional items are grouped in brackets and separated by
vertical bars. Several items or no item can be selected.
GUI Conventions
The GUI conventions that may be found in this document are defined as follows.
Convention
Description
Boldface
Buttons, menus, parameters, tabs, window, and dialog titles
are in boldface. For example, click OK.
>
Multi-level menus are in boldface and separated by the ">"
signs. For example, choose File > Create > Folder.
Keyboard Operations
The keyboard operations that may be found in this document are defined as follows.
EMU
User Guide
Organization
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Format
Description
Key
Press the key. For example, press Enter and press Tab.
Key 1+Key 2
Press the keys concurrently. For example, pressing Ctrl+Alt
+A means the three keys should be pressed concurrently.
Key 1, Key 2
Press the keys in turn. For example, pressing Alt, A means
the two keys should be pressed in turn.
Mouse Operations
The mouse operations that may be found in this document are defined as follows.
Action
Description
Click
Select and release the primary mouse button without moving
the pointer.
Double-click
Press the primary mouse button twice continuously and
quickly without moving the pointer.
Drag
Press and hold the primary mouse button and move the
pointer to a certain position.
Organization
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1 Changes in the EMU User Guide
This describes the changes in the EMU User Guide.
13 (2009-12-31)
Thirteenth release. The document is modified according to the comments by the testers.
12 (2008-08-20)
Twelfth release. The description of SW-ADDR is modified.
11 (2008-05-20)
Eleventh release. The data cable of the EMU is modified.
10 (2008-04-25)
Tenth release. The illustration of how to connect the infrared sensor is modified.
09 (2008-01-15)
Ninth release. The document title in About This Document is modified, and the document
structure is adjusted.
08 (2007-10-30)
Eighth release. The document titles printed on the head page and the header are modified.
07 (2007-09-20)
Seventh release. The description of the power cable and data cable is added.
06 (2007-08-07)
Sixth release. Structural changs are made, some market requirements are met.
05 (2007-04-20)
Fifth release. Indexes are added, parameter description of the self-selected sensors is added.
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1-1

04 (2007-03-30)
Fourth release. Structural changs are made, some market requirements are met.
03 (2007-02-02)
Third release. Testing problems are solved.
02 (2006-12-30)
Second release.
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2 Overview of the EMU
About This Chapter
Applicable to all types of BTSs/NodeBs manufactured by Huawei, the EMU is used to monitor
the environment in the equipment room.
2.1 Functions of the EMU
This describes the functions of the environment monitoring unit (EMU). Providing a variety of
input ports for monitoring signals, the EMU supports real-time monitoring and remote
monitoring. In addition, the EMU is highly reliable and can be flexibly configured. It supports
a large area for temperature monitoring.
2.2 Exterior of the EMU
This describes the exterior of the two EMU models.
2.3 Internal Structure of the EMU
This describes the internal structure of the EMU.
2.4 Communication Ports on the EMU
The EMU provides the RS485 and RS232 ports for the communication between the EMU and
the BTS/NodeB.
2.5 Monitoring Ports of the EMU
The EMU provides monitoring ports for the humidity/temperature sensor, smoke sensor, water
sensor, infrared sensor, and door status sensor. In addition, the EMU provides monitoring ports
for the Boolean signal sensor, analog signal sensor, and output control sensor, which are extended
sensors.
2.6 Technical Specifications of the EMU
This describes the technical specifications of the EMU.
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2.1 Functions of the EMU
This describes the functions of the environment monitoring unit (EMU). Providing a variety of
input ports for monitoring signals, the EMU supports real-time monitoring and remote
monitoring. In addition, the EMU is highly reliable and can be flexibly configured. It supports
a large area for temperature monitoring.
Power Input
l
The EMU supports input voltage detection. The alarm threshold for the input voltage can
be configured on the BTS/NodeB and delivered to the EMU.
l
The EMU provides two power input ports, which are protected from inverse connections.
l
The range of voltage input is -36 V DC to -72 V DC.
Environment Monitoring
l
The EMU provides an independent port for 12 V/24 V DC current-type (4 mA - 20 mA)
humidity/temperature sensors. The temperature monitoring range is -20oC [-4oF] to 80oC
[176oF].
l
The EMU provides four ports for monitoring analog signals. Voltage-type (0 V - 5 V)
sensors and current-type (4 mA - 20 mA) sensors can be used. The types of monitored
analog signals can be configured through the DIP switch settings according to the BTS/
NodeB configuration.
Boolean Signal Monitoring
The EMU provides 32 ports for monitoring Boolean signals. Dry contact point signals and OC
signals are supported.
Relay Node Control
The EMU provides six output control ports for external Boolean signals of the relay node type.
Communication Ports
The EMU provides two RS-485 ports, which is used for the communication between the EMU
and the BTS/NodeB.
2.2 Exterior of the EMU
This describes the exterior of the two EMU models.
Exterior of EMU model A
Figure 2-1 and Figure 2-2 show the exterior of EMU model A and its front panel respectively.
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Figure 2-1 Exterior of EMU model A
Figure 2-2 Front panel of EMU model A
OFF
RE4- RE4+ RE3- RE3+ RE2- RE2+ RE1- RE1+
GND Water12VW 24VW Humi 24VH Temp 24VT
12V2
12V1
24V2 GND3
GND2 ANA2
24V1
ANA1
GND4 ANA4 12V4 24V4
GND3 ANA3 12V3 24V3
Gate 12VD Smoke 24VS GND OPTI
24VI 12VI
RE6- RE6+ RE5- RE5+
NC
NC
NC
NC
S32- S32+ S31- S31+ S30- S30+ S29- S29+
S24- S24+ S23- S23+ S22- S22+ S21- S21+
S28- S28+ S27- S27+ S26- S26+ S25- S35+
S17- S17+
S20- S20+ S19- S19+ S18- S18+
S16- S16+ S15- S15+ S14- S14+ S13- S13+
S8-
S8+
S7-
S7+
S6-
S6+
S5-
S5+
S1-
S1+
S4-
S4+
S3-
S3+
S2-
S2+
S12- S12+ S11- S11+ S10- S10+
S9-
S9+
1
7
8
9
4
11
2
RS232
RS485
PWR1- PWR1+
PWR2- PWR2+
3
5
6
12
10
(1) Six ports for Boolean signal output
(2) Port for water sensors
(3) Port for door status sensors
(4) Port for smoke sensors
(5) Port for humidity/temperature sensors
(6) Port for infrared sensors
(7) Four ports for analog signal sensors
(8) RS-232 port
(9) Active/standby power port
(10) Two RS-485 ports
(11) Grounding screw
(12) Thirty-two ports for Boolean signal sensors
Exterior of EMU model B
Figure 2-3 and Figure 2-4 show the exterior of the EMU model B and its front panel respectively.
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Figure 2-3 Exterior of EMU model B
Figure 2-4 Front panel of EMU model B
RE4- RE4+ RE3- RE3+ RE2- RE2+ RE1- RE1+
GND Water12VW 24VW Humi 24VH Temp 24VT
12V2
12V1
24V2 GND3
GND2 ANA2
24V1
ANA1
GND4 ANA4 12V4 24V4
GND3 ANA3 12V3 24V3
Gate 12VD Smoke 24VS GND OPTI
12VI 24VI
RE6- RE6+ RE5- RE5+
NC
NC
NC
NC
S32- S32+ S31- S31+ S30- S30+ S29- S29+
S24- S24+ S23- S23+ S22- S22+ S21- S21+
S28- S28+ S27- S27+ S26- S26+ S25- S35+
S17- S17+
S20- S20+ S19- S19+ S18- S18+
S16- S16+ S15- S15+ S14- S14+ S13- S13+
S8-
S8+
S7-
S7+
S6-
S6+
S5-
S5+
S1-
S1+
S4-
S4+
S3-
S3+
S2-
S2+
S12- S12+ S11- S11+ S10- S10+
S9-
S9+
OFF
1
7
8
9
4
11
2
RS232
RS485
PWR1- PWR1+
PWR2- PWR2+
3
5
6
12
10
(1) Six ports for Boolean signal output
(2) Port for water sensors
(3) Port for door status sensors
(4) Port for smoke sensors
(5) Port for humidity/temperature sensors
(6) Port for infrared sensors
(7) Four ports for analog signal sensors
(8) RS-232 port
(9) Active/standby power port
(10) Two RS-485 ports
(11) Grounding screw
(12) Thirty-two ports for Boolean signal sensors
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2.3 Internal Structure of the EMU
This describes the internal structure of the EMU.
Board Layout
Figure 2-5 shows the board layout inside the EMU.
Figure 2-5 Board layout inside the EMU
DIP Switches
Table 2-1 lists the functions and settings of the DIP switches on the panel of the EMU.
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Table 2-1 Functions and settings of the DIP switches on the panel of the EMU
Silkscreen
Function
Setting
SW_ADDR
Selection of the
communication protocol
l If a DIP switch bit is set to ON, it
represents 0. If a DIP switch bit is set to
OFF, it represents 1.
l The settings of the DIP switch
SW_ADDR (1234) are as follows:
– CDMA BTS or non-double-density
GSM BTS: 0001
– Double-density GSM BTS or
WCDMA NodeB: 0010
SW_BKE
Bit 1: water sensor setting
l This bit is set to ON if a sensor is not used.
l This bit is set to OFF if a sensor is used.
Bit 2: smoke sensor setting
This bit is set to ON, no matter whether a
sensor is used.
Bit 3: infrared sensor setting
l This bit is set to ON if a sensor is not used.
l This bit is set to OFF if a sensor is used.
Bit 4: door status sensor
setting
l This bit is set to ON if a sensor is used.
l This bit is set to OFF if a sensor is not
used.
SW_THE
Bit 1: temperature sensor
setting
l This bit is set to ON if a sensor is used.
l This bit is set to OFF if a sensor is not
used.
Bit 2: humidity sensor setting
l This bit is set to ON if a sensor is used.
l This bit is set to OFF if a sensor is not
used.
SW_AE
Four bits for analog signal
sensor settings
Each bit corresponds to an analog sensor.
l This bit is set to ON if a sensor is used.
l This bit is set to OFF if a sensor is not
used.
SW_AV
Four bits for analog signal
sensor settings
Each bit corresponds to an analog sensor.
l This bit is set to ON if a current-type
sensor is used.
l This bit is set to OFF if a voltage-type
sensor is used.
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Silkscreen
Function
Setting
SW12A,
SW12B,
SW24A,
SW24B
Thirty-two bits for Boolean
signal input
l Bits 1-8 of the DIP switch SW12A
correspond to input signals 1-8.
l Bits 1-8 of the DIP switch SW12B
correspond to input signals 9-16.
l Bits 1-8 of the DIP switch SW24A
correspond to input signals 17-24.
l Bits 1-8 of the DIP switch SW24B
correspond to input signals 25-32.
l When a bit is set to ON, it represents high-
level alarms.
l When a bit is set to OFF, it represents low-
level alarms or is not used.
NOTE
The configurations described in this document apply only to the sensors provided by Huawei. For sensors
of other types, see their respective instructions.
2.4 Communication Ports on the EMU
The EMU provides the RS485 and RS232 ports for the communication between the EMU and
the BTS/NodeB.
2.4.1 RS485 Serial Port
This describes the RS485 serial port on the EMU. Two RS485 serial ports are used in active/
standby mode for the communication between the EMU and the BTS/NodeB. The RS485 serial
port is suitable for a dedicated serial port that has a DB-9 male connector.
2.4.2 RS232 Serial Port
This describes the RS232 serial port on the EMU. An RS232 serial port is an RJ-45 socket and
suitable for a dedicated serial port cable that has an RJ-45 plug.
2.4.1 RS485 Serial Port
This describes the RS485 serial port on the EMU. Two RS485 serial ports are used in active/
standby mode for the communication between the EMU and the BTS/NodeB. The RS485 serial
port is suitable for a dedicated serial port that has a DB-9 male connector.
For the position of the RS485 serial port on the EMU, see 2.2 Exterior of the EMU.
Figure 2-6 shows the pins of the RS485 serial port socket.
Figure 2-6 Pins of the RS485 serial port socket
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Table 2-2 lists the meanings of the pins of the RS485 serial port socket.
Table 2-2 Meanings of the pins of the RS485 serial port socket
PIN
Meaning
1
NULL
2
RX1+: positive reception terminal of serial
port 1
3
TX1+: positive transmission terminal of
serial port 1
4
RX2+: positive reception terminal of serial
port 2
5
TX2+: positive transmission terminal of
serial port 2
6
RX1-: negative reception terminal of serial
port 1
7
TX1-: negative transmission terminal of
serial port 1
8
RX2-: negative reception terminal of serial
port 2
9
TX2-: negative transmission terminal of
serial port 2
NOTE
l
The signals shown in this table are defined in terms of transmission and reception by the EMU.
l
When the TXD+ pin is connected to the RXD+ pin and the TXD- pin is connected to the RXD- pin,
the RS485 serial port can be used for two-wire connection.
l
The EMU works properly even if only one RS485 serial port is connected. It is recommended that you
use two RS-485 serial ports in active/standby mode. In this case, set serial port 1 to the active port.
2.4.2 RS232 Serial Port
This describes the RS232 serial port on the EMU. An RS232 serial port is an RJ-45 socket and
suitable for a dedicated serial port cable that has an RJ-45 plug.
For the position of the RS232 serial port on the EMU, see 2.2 Exterior of the EMU.
Figure 2-7 shows pins of the RS232 serial port socket.
Figure 2-7 Pins of the RS232 serial port socket
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Table 2-3 lists the meanings of the pins of the RS232 serial port socket.
Table 2-3 Meanings of the pins of the RS232 serial port socket
PIN
Meaning
1
NULL
2
NULL
3
TX: transmit terminal
4
GND: signal grounding terminal
5
GND: signal grounding terminal
6
RX: receive terminal
7
NULL
8
NULL
NOTE
l
The signals shown in this table are defined in terms of transmission and reception by the EMU.
l
The RS232 serial port is a standby commissioning port. When the EMU works properly, this port is
not used.
2.5 Monitoring Ports of the EMU
The EMU provides monitoring ports for the humidity/temperature sensor, smoke sensor, water
sensor, infrared sensor, and door status sensor. In addition, the EMU provides monitoring ports
for the Boolean signal sensor, analog signal sensor, and output control sensor, which are extended
sensors.
2.5.1 Monitoring Port for the Water Sensor
This describes the monitoring port for the water sensor. This port is a voltage-type Boolean
signal monitoring port and suitable for a bare terminal of a cable (24 AWG - 12 AWG).
2.5.2 Monitoring Port for the Smoke Sensor
This describes the monitoring port for the smoke sensor. This port is a current-type Boolean
signal monitoring port and suitable for a bare terminal of a cable (24 AWG - 12 AWG).
2.5.3 Monitoring Port for the Infrared Sensor
This describes the monitoring port for the infrared sensor. This port is a voltage-type Boolean
signal monitoring port and suitable for a bare terminal of a cable (24 AWG - 12 AWG).
2.5.4 Monitoring Port for the Door Status Sensor
This describes the monitoring port for the door status sensor. This port is a dry contact point
Boolean signal monitoring port and suitable for a bare terminal of a cable (24 AWG - 12 AWG).
2.5.5 Monitoring Port for the Humidity/Temperature Sensor
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This describes the monitoring port for the humidity/temperature sensor. This port is a current-
type analog signal monitoring port and suitable for a bare terminal of a cable (24 AWG - 12
AWG).
2.5.7 Monitoring Port for Analog Signals
This describes the monitoring port for analog signals. This port is a voltage-type analog signal
monitoring port and suitable for a bare terminal of a cable (24 AWG - 12 AWG).
2.5.8 Monitoring Port for the Relay Node Boolean Signals
This describes the monitoring port for the Boolean Sensor. The EMU supports six monitoring
ports for relay node Boolean signals, and the monitoring port for relay node Boolean signals is
suitable for a bare terminal of a cable (24 AWG - 12 AWG).
2.5.1 Monitoring Port for the Water Sensor
This describes the monitoring port for the water sensor. This port is a voltage-type Boolean
signal monitoring port and suitable for a bare terminal of a cable (24 AWG - 12 AWG).
For the position of the monitoring port for the water sensor, see 2.2 Exterior of the EMU.
Figure 2-8 shows this port.
Figure 2-8 Monitoring port for the water sensor
NOTE
The EMU supports 24V/12 V DC water sensors.
Table 2-4 lists the meanings of the terminals of the monitoring port for the water sensor.
Table 2-4 Meanings of the terminals of the monitoring port for the water sensor
Silkscreen
Meaning
24VW
24 V DC power output
12VW
12 V DC power output
Water
Input of water damage monitoring signals
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Silkscreen
Meaning
GND
Signal grounding terminal
NOTE
You can set bit 1 of the DIP switch SW_BKE to choose whether to use the monitoring port for the water
sensor. For details, see 2.3 Internal Structure of the EMU.
2.5.2 Monitoring Port for the Smoke Sensor
This describes the monitoring port for the smoke sensor. This port is a current-type Boolean
signal monitoring port and suitable for a bare terminal of a cable (24 AWG - 12 AWG).
For the position of the monitoring port for the smoke sensor, see 2.2 Exterior of the EMU.
Figure 2-9 shows this port.
Figure 2-9 Monitoring port for the smoke sensor
NOTE
The EMU supports 24 V DC smoke sensors.
Table 2-5 lists the meanings of the terminals of the monitoring port for the smoke sensor.
Table 2-5 Meanings of the terminals of the monitoring port for the smoke sensor
Silkscreen
Meaning
24VS
24 V DC power output
Smoke
Input of smoke monitoring signals
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NOTE
You can set bit 2 of the DIP switch SW_BKE to choose whether to use the monitoring port for the smoke
sensor. For details, see 2.3 Internal Structure of the EMU.
2.5.3 Monitoring Port for the Infrared Sensor
This describes the monitoring port for the infrared sensor. This port is a voltage-type Boolean
signal monitoring port and suitable for a bare terminal of a cable (24 AWG - 12 AWG).
For the position of the monitoring port for the infrared sensor, see 2.2 Exterior of the EMU.
Figure 2-10 shows this port.
Figure 2-10 Monitoring port for the infrared sensor
NOTE
The EMU supports 24V/12 V DC infrared sensors.
Table 2-6 lists the meanings of the terminals of the monitoring port for the infrared sensor.
Table 2-6 Meanings of the terminals of the monitoring port for the infrared sensor
Silkscreen
Meaning
24VI
24 V DC power output
12VI
12 V DC power output
OPTI
Input of infrared monitoring signals
GND
Signal grounding terminal
NOTE
You can set bit 3 of the DIP switch SW_BKE to choose whether to use the monitoring port for the infrared
sensor. For details, see 2.3 Internal Structure of the EMU.
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2.5.4 Monitoring Port for the Door Status Sensor
This describes the monitoring port for the door status sensor. This port is a dry contact point
Boolean signal monitoring port and suitable for a bare terminal of a cable (24 AWG - 12 AWG).
For the position of the monitoring port for the door status sensor, see 2.2 Exterior of the
EMU. Figure 2-11 shows this port.
Figure 2-11 Monitoring port for the door status sensor
Table 2-7 lists the meanings of the terminals of the monitoring port for the door status sensor.
Table 2-7 Meanings of the terminals of the monitoring port for the door status sensor
Silkscreen
Meaning
12VG
Positive input terminal for door status
monitoring signals
Gate
Negative input terminal for door status
monitoring signals
NOTE
You can set bit 4 of the DIP switch SW_BKE to choose whether to use the monitoring port for the door
status sensor. For details, see 2.3 Internal Structure of the EMU.
2.5.5 Monitoring Port for the Humidity/Temperature Sensor
This describes the monitoring port for the humidity/temperature sensor. This port is a current-
type analog signal monitoring port and suitable for a bare terminal of a cable (24 AWG - 12
AWG).
For the position of the monitoring port for the humidity/temperature sensor, see 2.2 Exterior of
the EMU. Figure 2-12 shows this port.
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Figure 2-12 Monitoring port for the humidity/temperature sensor
NOTE
The EMU supports 24 V DC humidity/temperature sensors.
Table 2-8 lists the meanings of the terminals of the monitoring port for the humidity/temperature
sensor.
Table 2-8 Meanings of the terminals of the monitoring port for the humidity/temperature sensor
Silkscreen
Meaning
24VT
24 V DC power output
Temp
Temperature monitoring signal input
24VH
24 V DC power output
Humi
Humidity monitoring signal input
NOTE
You can set the DIP switch SW_BKE to choose whether to use the monitoring port for the humidity/
temperature sensor. For details, see 2.3 Internal Structure of the EMU.
2.5.6 Monitoring Port for Boolean Signals
This describes the monitoring port for the Boolean Sensor. The EMU supports 32 monitoring
ports for Boolean signals, and the monitoring port for the Boolean sensor is suitable for a bare
terminal of a cable (24 AWG - 12 AWG).
For the position of the monitoring port for Boolean signals, see 2.2 Exterior of the EMU. Figure
2-13 shows this port.
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Figure 2-13 Monitoring port for Boolean signals
NOTE
l
The common types of Boolean signals are the dry contact point type, OC type, voltage type, and current
type.
l
All the monitoring ports for Boolean signals support Boolean signals of the dry contact point type and
OC type.
l
Ports S13 - S16 and S29 - S32 support Boolean signals of the voltage type.
Table 2-9 lists the valid values of Boolean signals of the voltage type.
Table 2-9 Valid values of Boolean signals of the voltage type
Value Range of the Input Voltage
Signal (x)
Definition
x ≤ 3 V DC
Low level
x ≥ 5 V DC
High level
3 V DC < x < 5 V DC
Unspecified
Table 2-10 lists the meanings of the terminals of the monitoring port for Boolean signals.
Table 2-10 Meanings of the terminals of the monitoring port for Boolean signals
Silkscreen
Meaning
Si+ (i ranges from 1 to 32)
Positive Boolean input of port i
Si- (i ranges from 1 to 32)
Negative Boolean input of port i
NOTE
You can set the DIP switches SW12A, SW12B, SW24A, and SW24B to choose whether to use the
monitoring port for Boolean signals. For details, see 2.3 Internal Structure of the EMU.
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2.5.7 Monitoring Port for Analog Signals
This describes the monitoring port for analog signals. This port is a voltage-type analog signal
monitoring port and suitable for a bare terminal of a cable (24 AWG - 12 AWG).
Description
For the position of the monitoring port for analog signals, see 2.2 Exterior of the EMU. Figure
2-14 shows this port.
Figure 2-14 Monitoring port for analog signals
12V1
GND1
24V1
ANA1
12V2
GND2
24V2
ANA2
12V4
GND4
24V4
ANA4
12V3
GND3
24V3
ANA3
Table 2-11 lists the meanings of the terminals of the monitoring port for analog signals.
Table 2-11 Meanings of the terminals of the monitoring port for analog signals
Silkscreen
Meaning
24Vi (i ranges from 1 to 4)
24 V DC power output of port i
12Vi (i ranges from 1 to 4)
12 V DC power output of port i
ANAi (i ranges from 1 to 4)
Analog input of port i
GNDi (i ranges from 1 to 4)
Signal grounding of port i
NOTE
You can set the DIP switches SW_AE and SW_AV to choose whether to use the monitoring port for Analog
signals. For details, see 2.3 Internal Structure of the EMU.
Cable Connection
Analog Sensor of the Voltage Type
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The voltage-type analog sensor has two power input terminals (marked "POWER+" and
"POWER-") and one analog signal output terminal (marked "Sout"), as shown in Figure 2-15.
Figure 2-15 Connecting the analog sensor of the voltage type
12V i
POWER +
Sout
i = 1,  2,  3,  4
POWER -
24V i
ANA i
GND
Analog
signal
sensor
Analog Sensor of the Current Type
The analog sensor of the current type has two power input ends (marked "POWER+" and
"POWER-"), as shown in Figure 2-16.
Figure 2-16 Connecting the analog sensor of the current type
POWER +
POWER -
24V i
12V i
ANA i
Analog
signal
sensor
i = 1,  2,  3,  4
2.5.8 Monitoring Port for the Relay Node Boolean Signals
This describes the monitoring port for the Boolean Sensor. The EMU supports six monitoring
ports for relay node Boolean signals, and the monitoring port for relay node Boolean signals is
suitable for a bare terminal of a cable (24 AWG - 12 AWG).
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Description
For the position of the monitoring port for relay node Boolean signals, see 2.2 Exterior of the
EMU. Figure 2-17 shows this port.
Figure 2-17 Monitoring Port for the relay node Boolean signals
RE1-
RE2-
RE1+
RE2+
RE3-
RE4-
RE3+
RE4+
NC
NC
NC
NC
RE5-
RE6-
RE5+
RE6+
Table 2-12 lists the meanings of the terminals of the monitoring port for relay node Boolean
signals.
Table 2-12 Meanings of the terminals of the monitoring port for relay node Boolean signals
Silkscreen
Meaning
REi+ (i ranges from 1 to 6)
Positive relay node output port i
REi- (i ranges from 1 to 6)
Negative relay node output port i
Cable Connection
Figure 2-18 shows the cable connection of the relay node.
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Figure 2-18 Cable connection of the relay node
i = 1 - 6
REi +
CTR_OUT+
CTR_OUT-
REi -
The relay node has two pins. The settings of the two pins are as follows:
l
If relay node output is enabled, the two pins are connected.
l
If relay node output is disabled, the two pins are disconnected.
If the relay needs to output 60 V DC or higher, use a 24 V intermediate relay to convert the
output voltage.
2.6 Technical Specifications of the EMU
This describes the technical specifications of the EMU.
Technical Specifications of the EMU
Table 2-13 lists the technical specifications of the EMU.
Table 2-13 Technical specifications of the EMU
Item
Measured Object
Specification
System voltage
Measurement range
0 V DC to 100 V DC
Measurement precision
±1 V
Temperature
Measurement range
-20oC [-4oF] to 80oC [176oF]
Measurement precision
±2oC
Humidity
Measurement range
0% RH to 100% RH
Measurement precision
±5%
Boolean signal
Measurement range
Smoke, door status, water damage, and
infrared signal
Alarm response time
< 10s
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Item
Measured Object
Specification
Analog signal
Measurement range
4 mA to 20 mA or 0 V to 5 V
Measurement precision
±1%
Relay output control
Control response time
< 1s
Dry contact output
capacity
Withstood voltage: 110 V DC, 125 V
AC; maximum load current: 1 A (30 V
DC)
Communication rate
RS-232 and RS-485
9600 bit/s
Performance specifications of the EMU
Table 2-14 lists the performance specifications of the EMU.
Table 2-14 Performance specifications of the EMU
Item
Specification
Storage temperature
-40oC [-40oF] to +70oC [158oF] (no condensing)
Working temperature
-5oC [23oF] to 55oC [131oF]
Storage humidity
5% RH to 95% RH
Working humidity
10%RH to 90%RH
Working voltage type
DC
Rated working voltage
-48 V
Rated working current
0.2 A
Outline dimensions (including the
dimensions of mounting ear)
252 mm [9.92 in.] x 258 mm [10.16 in.] x 98 mm
[3.86 in.]
Outline dimensions (excluding the size of
mounting ear)
252 mm [9.92 in.] x 219 mm [8.62 in.] x 91 mm
[ 3.58 in.] (including the dimensions of the cord
end terminal)
252 mm [9.92 in.] x 209 mm [8.23 in.] x 91 mm
[ 3.58 in.] (excluding the dimensions of the cord
end terminal)
Net weight
Model A: 2.5 kg [5.51 lb]
Model A: 2.8 kg [6.17 lb]
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3 Introduction to the Sensors
About This Chapter
The sensors provided by Huawei can be used directly. The sensors not provided by Huawei can
be used only if their specifications meet the requirements.
3.1 Water Sensor
This describes the water sensor. The model of the configured water sensor is YW517B. This
water sensor is of the current type.
3.2 Smoke Sensor
This describes the smoke sensor. The model of the configured smoke sensor is JTY-GD-01K.
This smoke sensor features a photoelectric sensing design and is of the voltage type.
3.3 Infrared Sensor
This describes the infrared sensor. The model of the configured infrared sensor is MC-760T.
3.4 Door Status Sensor
This describes the doors status sensor. The model of the configured door status sensor is
AGX105F (outdoor) or HO-03A (indoor).
3.5 Humidity/Temperature Sensor
This describes the humidity/temperature sensor. The model of the configured humidity/
temperature sensor is WS302A1T4.
3.6 Self-Selected Sensors
This describes the requirements for the specifications of the self-selected sensors.
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3.1 Water Sensor
This describes the water sensor. The model of the configured water sensor is YW517B. This
water sensor is of the current type.
Exterior of the Water Sensor
Figure 3-1 shows the exterior of the YW517B water sensor.
Figure 3-1 Exterior of the YW517B water sensor
NOTE
The cable provided along with the YW517B water sensor is 2.7 m [8.86 ft] long.
Technical Specifications of the Water Sensor
Table 3-1 lists the technical specifications of the YW517B water sensor.
Table 3-1 Technical specifications of the YW517B water sensor
Item
Specification
Power supply voltage
12 V DC ± 5%
Current output when liquid is not detected
< 80 uA
Current output when liquid is detected
10 mA to 15 mA
Output signal type
Current
Working temperature
-20oC [-4oF] to +70oC [158oF]
3.2 Smoke Sensor
This describes the smoke sensor. The model of the configured smoke sensor is JTY-GD-01K.
This smoke sensor features a photoelectric sensing design and is of the voltage type.
Exterior of the Smoke Sensor
Figure 3-2 shows the exterior of the JTY-GD-01K smoke sensor.
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Figure 3-2 Exterior of the JTY-GD-01K smoke sensor
NOTE
The cable distributed for the JTY-GD-01K smoke sensor is 10 m [32.81 ft] long.
Working Principle of the Smoke Sensor
When the smoke sensor is in the alarm state, the red indictor is on. After the system is powered
on immediately after being powered off or after the system is reset, the indicator shifts to the
ON state, indicating that the smoke sensor returns to the normal state. Table 3-2 describes the
indicator on the smoke sensor.
Table 3-2 Indicator on the smoke sensor
Indicator
Meaning
Status
Red indicator
Alarm
On
No alarm
Blinking
Technical Specifications of the Smoke Sensor
Table 3-3 lists the technical specifications of the JTY-GD-01K smoke sensor.
Table 3-3 Technical specifications of the JTY-GD-01K smoke sensor
Item
Specification
Power supply voltage
24 V DC ± 5%
Working current
< 50 uA
Power-on time
≤ 30s
Power-on current
< 150 uA
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Item
Specification
Working temperature
-10oC [14oF] to +55oC [131oF]
Working humidity
≤ 95% (40oC [104oF] ± 2oC [35.6oF], no
condensing)
Output type
Dry contact point
3.3 Infrared Sensor
This describes the infrared sensor. The model of the configured infrared sensor is MC-760T.
Exterior of the Infrared Sensor
Figure 3-3 shows the exterior of the MC-760T infrared sensor.
Figure 3-3 Exterior of the MC-760T infrared sensor
NOTE
The cable provided along with the MC-760T infrared sensor is 10 m [32.81 ft] long.
Working Principle of the Infrared Sensor
The MC-760T infrared sensor is based on the pyroelectric effect and performs dual monitoring
(microwave and infrared).
The sensitivity of the infrared sensor can be adjusted through its DIP switches. For details, refer
to the instructions of the infrared sensor. The infrared sensor enters the monitoring state three
minutes after it is powered on. It generates an alarm whenever someone moves in the equipment
room.
Technical Specifications of the Infrared Sensor
Table 3-4 lists the technical specifications of the MC-760T infrared sensor.
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Table 3-4 Technical specifications of the MC-760T infrared sensor
Item
Specification
Power supply voltage
12 V DC ±5%
Working current
30 mA
Monitoring range
Front: ±18 m [59.06 ft]
45oC range: ±25 m [82.02 ft]
Output type
Dry contact point
Working temperature
-10oC [14oF] to 55oC [131oF]
3.4 Door Status Sensor
This describes the doors status sensor. The model of the configured door status sensor is
AGX105F (outdoor) or HO-03A (indoor).
Exterior of the Door Status Sensor
Figure 3-4 shows the exterior of the AGX105F door status sensor.
Figure 3-4 Exterior of the AGX105F door status sensor
Surface
A
Surface B
Side
Bottom
sectional view
3
4
Figure 3-5 shows the exterior of the HO-03A door status sensor.
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Figure 3-5 Exterior of the HO-03A door status sensor
NOTE
The cable provided along with the HO-03A door status sensor is 10 m [32.81 ft] long.
Working Principle of the Door Status Sensor
When the button at the top of the AGX105F door status sensor is pressed, the spring is
compressed, and the reed touches pins A and B, as shown in Figure 3-6.
Figure 3-6 Working principle of the AGX105F door status sensor
The HO-03A door status sensor consists of a dry finger pipe and a magnetic ferrite. The dry
finger pipe consists of two soft magnetic metal fingers that are close to each other. When the
magnetic ferrite is close to the dry finger pipe, the fingers are magnetized and attracted to each
other. When the magnetic field no longer covers the fingers, the fingers spring apart.
Technical Specifications of the Door Status Sensor
Table 3-5 lists the technical specifications of the AGX105F door status sensor.
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Table 3-5 Technical specifications of the AGX105F door status sensor
Item
Specification
Working voltage
250 V AC
Rated current
10.0 A
Pin length
10.60 mm [0.42 in.]
Table 3-6 lists the technical specifications of the HO-03A door status sensor.
Table 3-6 Technical specifications of the HO-03A door status sensor
Item
Specification
Effect distance
≥ 25 mm [0.98 in.]
Contact capacity
l Maximum voltage: 150 V DC
l Maximum current: 0.5 A
Impedance
0.3 ohm
Power
10 W
Output type
Dry contact point
3.5 Humidity/Temperature Sensor
This describes the humidity/temperature sensor. The model of the configured humidity/
temperature sensor is WS302A1T4.
Exterior of the Humidity/Temperature Sensor
Figure 3-7 shows the exterior of the WS302A1T4 humidity/temperature sensor.
Figure 3-7 Exterior of the WS302A1T4 humidity/temperature sensor
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NOTE
The cable provided along with the WS302A1T4 humidity/temperature sensor is 3 m [9.84 ft] long.
Working Principle of the Humidity/Temperature Sensor
The WS302A1T4 humidity/temperature sensor uses a Pt100 thermistor as the temperature
sensing component and an S108 macromolecular humidity-sensitive capacitor as the humidity
sensing component. The WS302A1T4 humidity/temperature sensor uses the SMT
craftsmanship, and it is installed on the wall.
Technical Specifications of the Humidity/Temperature Sensor
Table 3-7 lists the technical specifications of the WS302A1T4 humidity/temperature sensor.
Table 3-7 Technical specifications of the WS302A1T4 humidity/temperature sensor
Item
Specification
Temperature Sensor
Humidity Sensor
Measurement
range
-20oC [-4oF] to +80oC [176oF]
0% RH to 100% RH
Precision
≤ ±0.3oC [32.54oF] (ambient
temperature: 25oC [77oF])
≤ ±2% RH (ambient temperature:
25oC [77oF], ambient humidity:
30% RH to 80% RH)
Power supply
voltage
12 V DC to 24 V DC
Signal output
4 mA to 20 mA (in linear response to the measurement range)
Sample
resistance
≤ 500 ohms
Sensitive
components
Pt100 thermistor
S108 macromolecular humidity-
sensitive capacitor
Working
temperature
-20oC [-4oF] to +80oC [176oF]
Storage
temperature
-40oC [-40oF] to +60oC [+140oF] (no condensing)
Covering
material
ABS engineering plastic
3.6 Self-Selected Sensors
This describes the requirements for the specifications of the self-selected sensors.
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Requirements for the specifications of the self-selected sensors
l
Working voltage: 24 V
l
Type of output temperature signals: current type (4 mA to 20 mA)
l
Type of output humidity signals: current type (4 mA to 20 mA)
l
Temperature monitoring range: -20oC [-4oF] to +80oC [176oF]
l
Humidity monitoring range: 0%RH to 100%RH
The relations between the humidity and output current must meet the requirements shown in
Figure 3-8.
Figure 3-8 Relations between the humidity and output current
4 mA
20 mA
0% RH
100% RH
The relations between the temperature and output current must meet the requirements shown in
Figure 3-9.
Figure 3-9 Relations between the temperature and output current
4 mA
20 mA
-20℃
80℃
Requirements for the Specifications of Self-Selected Water Sensors
Working voltage: 24 V or 12 V
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The output signals must meet the following requirements:
l
Current type
– When liquid is not detected, the output current should be less than 200 uA.
– When liquid is detected, the output current should be greater than 1 mA.
l
Voltage type
– When liquid is not detected, the output voltage should be less than 3.3 V.
– When liquid is detected, the output voltage should be greater than 5 V.
l
Dry contact point type
– When liquid is not detected, the sensor should be disconnected.
– When liquid is detected, the sensor should be connected.
Requirements for the Specifications of Self-Selected Door Status Sensors
Working voltage: 12 V
The output signals must meet the following requirements:
l
Current type
– When the door is closed, the output current should be less than 200 uA.
– When the door is open, the output current should be greater than 1 mA.
l
Voltage type
– When the door is closed, the output voltage should be less than 3.3 V.
– When the door is open, the output voltage should be greater than 5 V.
l
Dry contact point type
– When the door is closed, the sensor should be connected.
– When the door is open, the sensor should be disconnected.
Requirements for the Specifications of Self-Selected Smoke Sensors
Working voltage: 24 V
The output signals must meet the following requirements:
l
Current type
– When smoke is not detected, the output current should be less than 200 uA.
– When smoke is detected, the output current should be greater than 3 mA.
l
Voltage type
– When smoke is not detected, the output voltage should be less than 3.3 V.
– When smoke is detected, the output voltage should be greater than 5 V.
l
Dry contact point type
– When smoke is not detected, the sensor should be disconnected.
– When smoke is detected, the sensor should be connected.
Requirements for the Specifications of Self-Selected Infrared Status Sensors
Working voltage: 24 V or 12 V
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The output signals must meet the following requirements:
l
Current type
– When moving objects are not detected, the output current should be less than 200 uA.
– When moving objects are detected, the output current should be greater than 1 mA.
l
Voltage type
– When moving objects are not detected, the output voltage should be less than 3.3 V.
– When moving objects are detected, the output voltage should be greater than 5 V.
l
Dry contact point type
– When moving objects are detected, the sensor should be disconnected.
– When moving objects are detected, the sensor should be connected.
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4 Installing the EMU
About This Chapter
This describes how to install the EMU.
Requirements for the Installation Position
When determining the installation position of the EMU, reserve some extra space so that you
can easily remove the screws on the sides of the EMU in future. Do not install the EMU close
to obstacles such as the DDF or cabling rack.
Figure 4-1 shows the installation positions of the EMU and sensors.
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Figure 4-1 Installation positions of the EMU and sensors
(1) Door status sensor
(2) Humidity/temperature sensor
(3) EMU
(4) BTS/NodeB
(5) Water sensor
(6) Smoke sensor
Checks Before Installation
CAUTION
l Check that the environment meets the requirements described in 2.6 Technical
Specifications of the EMU.
l Check that the package is intact and that the items inside the package are consistent with
Table 4-1.
Table 4-1 List of items inside the package of the EMU
Item
Remarks
EMU
One
Door status sensor
One (optional)
Smoke sensor
One (optional)
Water sensor
One (optional)
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Item
Remarks
Humidity/temperature sensor
One (optional)
Infrared sensor
One (optional)
Bolts for installing the alarm
box
Four M8 expansion bolts for EMU model A (EMU model B
has tapping screws and does not need expansion bolts.)
8-pin cord end terminal
Fourteen
2-pin cord end terminal
Two
Plastic expansion tube
Six
(for smoke sensors)
Bolts for installing sensors
Six tapping bolts
(for smoke sensors)
Cable tie
Fifty
Power cable
One, 10 m [32.81 ft]
l Cross-sectional area: 0.82 mm2
l Blue and black
Alarm box cable for the BTS/
NodeB
One RS-485 communication cable
Grounding cable
One, 5 m [16.4 ft]
l Cross-sectional area: 4 mm2
l Yellow and green
l With OT terminals
Symmetric twisted pair cable
Optional
l 28 AWG
l Cross-sectional area: 0.32 mm2
l Black, or black and white
NOTE
If some or no cord end terminals are used, insert them to the sockets to avoid loss.
4.1 Installing EMU Model A
This describes how to install EMU model A on a wall of the equipment room.
4.2 Installing EMU Model B
This describes how to install EMU model B on a wall of the equipment room.
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4.1 Installing EMU Model A
This describes how to install EMU model A on a wall of the equipment room.
Prerequisite
The following items are ready:
l
Screwdriver, percussion drill (φ12 drill bit)
l
EMU, expansion bolts
Procedure
Step 1 Press the EMU against the wall, and then mark the position of the four installation holes, as
shown in Figure 4-2.
Figure 4-2 RS485 serial cable
236 mm
180 mm
ALARM
RUN
POWER
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Step 2 Use the φ12 drill bit to drill the four installation holes.
Step 3 Use four M8x60 expansion bolts to fix the EMU to the wall.
Step 4 Install the protection grounding cable of the EMU, and then connect the protection grounding
cable to the grounding bar in the equipment room.
Step 5 Install the RS-485 serial cable and power cable.
1.
Connect one end of the RS485 serial cable to the RS485 port of the EMU and the other end
to the BTS/NodeB. Figure 4-3 shows the RS485 serial cable.
Figure 4-3 RS485 serial cable
2.
Connect the A end of the EMU power cable to the PWR+/- port on the EMU and the other
end to the power distribution equipment. Figure 4-4 shows the power cable.
Figure 4-4 Power cable
CAUTION
If the B end of the EMU power cable does not match the port of the power distribution
equipment, replace the connector on the B end.
Step 6 Connect the sensors to the EMU.
----End
4.2 Installing EMU Model B
This describes how to install EMU model B on a wall of the equipment room.
Prerequisite
The following items are ready:
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l
Screwdriver, percussion drill (φ6 drill bit)
l
EMU, expansion rubber stoppers, tapping screws
Procedure
Step 1 Press the EMU against the wall, and then mark the position of the four installation holes, as
shown in Figure 4-5.
Figure 4-5 RS485 serial cable
236 mm
180 mm
ALARM
RUN
POWER
Step 2 Use the φ6 drill bit to drill the four installation holes.
Step 3 Push the expansion tubes into the installation holes, as shown in Figure 4-6.
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Figure 4-6 Pushing the expansion tubes into the installation holes
Step 4 Use the four delivered ST3.5 tapping screws to fix the EMU, as shown in Figure 4-7.
Figure 4-7 Fastening the tapping screws
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Step 5 Install the protection grounding cable of the EMU, and then connect the protection grounding
cable to the grounding bar in the equipment room.
Step 6 Install the RS-485 serial cable and power cable.
1.
Connect one end of the RS485 serial cable to the RS485 port of the EMU and the other end
to the BTS/NodeB. Figure 4-8 shows the RS485 serial cable.
Figure 4-8 RS485 serial cable
2.
Connect the A end of the EMU power cable to the PWR+/- port on the EMU and the other
end to the power distribution equipment. Figure 4-9 shows the power cable.
Figure 4-9 Power cable
CAUTION
If the B end of the EMU power cable does not match the port of the power distribution
equipment, replace the connector on the B end.
Step 7 Connect the sensors to the EMU.
----End
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5 Installing the Sensors
About This Chapter
The installation methods of the sensors provided by Huawei are described here. For the sensors
not provided by Huawei, see their respective instructions during installation.
Context
Adhere to the following requirements when installing the sensors:
l
Install the water sensor in a low-lying position where water easily infiltrates.
l
Install the smoke sensor in the center of the ceiling.
l
Install the infrared sensor in a position about 1.5 m [4.92 ft] above the ground.
l
Install the door status sensor where the top of the door meets the doorframe.
l
Install the humidity/temperature sensor in a position about 1.5 m [4.92 ft] above the ground
and close to the BTS/NodeB.
Figure 5-1 shows the installation positions of the EMU and sensors.
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Figure 5-1 Installation positions of the EMU and sensors
(1) Door status sensor
(2) Humidity/temperature sensor
(3) EMU
(4) BTS/NodeB
(5) Water sensor
(6) Smoke sensor
5.1 Installing the Water Sensor
This describes how to install the water sensor.
5.2 Installing the Smoke Sensor
This describes how to install the smoke sensor.
5.3 Installing the Infrared Sensor
This describes how to install the infrared sensor.
5.4 Installing the Door Status Sensor
This describes how to install the door status sensor.
5.5 Installing the Humidity/Temperature Sensor
This describes how to install the humidity/temperature sensor.
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5.1 Installing the Water Sensor
This describes how to install the water sensor.
Context
CAUTION
l The sensor probe must be protected from liquid chloride.
l The monitored plane must not be reflective.
l The water sensor can be connected only to the terminals marked "Water", "12VW", and
"GND".
Procedure
Step 1 Erect the water sensor in the selected installation position, as shown in Figure 5-2.
Figure 5-2 Installing the water sensor
Placing
surface
Step 2 Install the leading cable of the sensor.
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Table 5-1 describes the 3-core leading cable of the water sensor, and Figure 5-3 shows the
connection of the cable.
Table 5-1 3-core leading cable of the water sensor
Color
Core Wire
Function
Red
Core wire for the
external power
supply
Connected to the terminal marked "12VW"
White
Grounding core
wire
Connected to the terminal marked "GND"
Blue
Signal core wire
Connected to the terminal marked "Water"
Figure 5-3 Connecting the water sensor
(1) GND (white)
(2) Water (blue)
(3) 12VW (red)
----End
5.2 Installing the Smoke Sensor
This describes how to install the smoke sensor.
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Context
The requirements for the installation of the smoke sensor are as follows:
l
If the smoke sensor is to be installed in the center of the ceiling, ensure that:
– There is no obstacle within a 0.5 m [1.64 ft] radius of the smoke sensor.
– The horizontal distance between the smoke sensor and the blast vent of the air-
conditioner is greater than 1.5 m [4.92 ft].
– The horizontal distance between the smoke sensor and the air vent in the ceiling is
greater than 0.5 m [1.64 ft].
– The horizontal distance between the smoke sensor and the air vent of the air-conditioner
is greater than 1.5 m [4.92 ft].
l
The smoke sensor is suitable for detecting fires that have smolder during the initial stage
and emit large amounts of smoke. Do not install the smoke sensor at locations where:
– Black smoke is emitted during fires.
– No smoke or little smoke is edited during fires.
– The relative humidity is constantly greater than 95%.
– The airflow rate is greater than 5 m/s.
– Large amounts of dust or water smoke is suspended.
– Corrosive gas may be emitted.
– Smoke is suspended under normal circumstances.
– Organic substances, such as alcohol, ether, and ketone are generated.
l
Before powering on the smoke sensor, ensure that the smoke sensor is correctly connected.
Thirty seconds after the smoke sensor is powered on, the red indicator will start to blink
once every 9 to 15 seconds.
l
Dust easily accumulates on the smoke sensor. Therefore, clear the dust periodically to avoid
false alarms.
l
To protect the smoke sensor from dirt, do not remove the dust cover before using the sensor.
CAUTION
l The smoke sensor cannot work without the power supply. Therefore, the smoke sensor does
not work if the power supply is interrupted.
l To avoid damage to the smoke sensor, do not directly use +24 V DC input voltage for the
smoke sensor.
NOTE
l
The smoke sensor can be connected only to the terminals marked "Smoke&24VS".
l
The smoke sensor generates alarms when there is smoke or fire. You have to run an associated command
to clear the alarms.
Procedure
Step 1 Install the smoke sensor in the selected position.
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Use a PVC terminal to bridge the seam between the cable duct and the base.
Figure 5-4 shows the installation of the smoke sensor.
Figure 5-4 Installation of the smoke sensor
65 mm
1
2
3
4
5
6
7
(1) Cable duct
(2) PVC terminal
(3) Alarm indicator
(4) Base
(5) Tapping screw
(6) Plastic expansion tube
(7) Percussion drill hole
Step 2 Connect the smoke sensor.
Open the base of the smoke sensor. On the base, there are four wiring bars labeled 1 - 4, a plus
sign, and a minus sign, as shown in Figure 5-5.
1.
Connect wiring bar 3 to the terminal marked "24VS".
2.
Connect wiring bar 1 to the terminal marked "Smoke".
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Figure 5-5 Connecting the smoke sensor
----End
5.3 Installing the Infrared Sensor
This describes how to install the infrared sensor.
Context
The requirements for the installation of the infrared sensor are as follows:
l
The infrared sensor should not be exposed to sunlight or other strong light.
l
The infrared sensor should not directly face heat sources such as air-conditioners or
caliducts.
l
The infrared sensor should directly face positions prone to unauthorized entry.
l
The infrared sensor should not be installed on the wall beside the door.
l
The monitoring range should be clear of obstacles so that the infrared sensor can be directly
seen in the monitoring range.
l
The Fresnel lens of the infrared sensor should be kept clean.
l
The pyroelectric components of the infrared sensor should not be touched.
NOTE
The infrared sensor can be connected only to the terminals marked "OPTI&12VI&GND".
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Procedure
Step 1 Remove the installation sheet of the infrared sensor, and then mark on the wall the positions of
the two installation holes of the installation sheet.
Step 2 Use the percussion drill to drill holes according to the marks.
Step 3 Insert the expansion tubes into the installation holes.
Step 4 Use the tapping screws to fix the installation sheet to the wall.
Step 5 Fix the infrared sensor to the installation sheet.
Step 6 Connect the infrared sensor, as shown in Figure 5-6.
Figure 5-6 Connecting the infrared sensor
----End
5.4 Installing the Door Status Sensor
This describes how to install the door status sensor.
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Context
NOTE
l
The distance between the two fingers should be less than 5 mm [0.20 in.] when the door is closed.
l
The door status sensor can be connected only to the terminals marked "GATE&12VG".
l
The alarms reported by the door status sensor can be cleared only through human intervention.
Procedure
Step 1 Mark the installation position of the door status sensor.
Step 2 Use the percussion drill to drill holes according to the marks.
Step 3 Install and fasten the door status sensor.
Step 4 Connect the door status sensor, as shown in Figure 5-7 and Figure 5-8.
Figure 5-7 Connecting the AGX105F door status sensor
Figure 5-8 Connecting the HO-03A door status sensor
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----End
5.5 Installing the Humidity/Temperature Sensor
This describes how to install the humidity/temperature sensor.
Context
The requirements for the installation of the humidity/temperature sensor are as follows:
l
Generally, the humidity/temperature sensor should be installed on a wall and about 1.5 m
[4.92 ft] above the ground.
l
Around the humidity/temperature sensor, ventilation should be good, and the airflow rate
is 0.1 m/s to 1 m/s.
NOTE
l
The humidity/temperature sensor cannot be installed in a position with no or little airflow.
l
The humidity/temperature sensor cannot be installed in a position with too rapid airflow, for
example, the air vent in the ceiling or the blast vent of an air-conditioner.
l
Do not install the humidity/temperature sensor in a position where:
– There is no air conditioning.
– The relative humidity is constantly higher than 90%.
– The temperature is constantly below -20oC [-4oF].
– The wind of an air cooling machine or air heating machine can directly blows the
humidity/temperature sensor.
– The air is polluted by substances such as sour gas and oily gas.
l
The humidity/temperature sensor should be kept away from the ends of the cabling trough.
l
The installation plane should be clean.
l
The humidity/temperature sensor should be powered off before the sensor is installed or
replaced.
l
Holes should not be drilled around the humidity/temperature sensor after the sensor is
installed. If you have to do so, take appropriate measures to protect the sensor from dust.
l
The humidity-sensitive components of the humidity/temperature sensor should not be
touched.
CAUTION
l To avoid mechanical and electrostatic damage to the humidity/temperature sensor, be
cautious when moving the box cover and the circuit board and when connecting the wires.
When moving the circuit board, hold its edges and take care not to touch its components.
Place the circuit board in a clean position.
l You need to calibrate the humidity/temperature sensor annually. Replace it if its precision is
too low.
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NOTE
The humidity/temperature sensor can be connected only to the terminals marked
"TEMP&24VT&HUMI&24VH".
Procedure
Step 1 Remove the backplane of the humidity/temperature sensor, and then mark on the wall the
positions of the three installation holes in the backplane.
Step 2 Use the percussion drill to drill holes according to the marks.
Step 3 Insert the plastic expansion tubes into the installation holes.
Step 4 Use the tapping screws to fix the backplane to the wall.
Step 5 Fix the humidity/temperature sensor to the backplane.
Step 6 Connect the humidity/temperature sensor, as shown in Figure 5-9.
Figure 5-9 Connecting the humidity/temperature sensor
----End
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6 Commissioning the EMU
This describes how to commission the EMU.
Procedure
Step 1 Perform a power-on check for the EMU.
1.
Check the DIP switch settings.
For the correct DIP switch settings, see 2.3 Internal Structure of the EMU.
2.
Power on the EMU.
3.
Check the status of the indicators.
After power-on, both the red and green indicators should blink for about 0.5 second. Then,
the red indicator should be off, and the green indicator should continue blinking.
Step 2 Check the communication between the EMU and the BTS/NodeB.
1.
Ensure that the EMU has passed the power-on check.
2.
On the Service Maintenance System of the BTS/NodeB, establish the communication
between the BTS/NodeB and the EMU.
3.
Check the status of the indicators on the EMU.
Check that the green indicator on the EMU blinks once every two seconds.
Step 3 Check the running status of the EMU.
1.
Ensure that the EMU has passed the communication check.
2.
Read the data of the sensors and the voltage on the Service Maintenance System of the
BTS/NodeB.
Check that the data is correct.
----End
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7 Handling Common Faults
This describes the solutions to common faults in the EMU.
Table 7-1 lists the solutions to common faults in the EMU.
Table 7-1 Solutions to common faults in the EMU
Symptom
Solution
The power indicator is OFF.
Check whether the power cable is inversely connected.
Check whether the protection tubes F1, F2, F3, and F4 are
burned out.
The EMU fails to communicate
with the BTS/NodeB.
Check whether the communication cables are intact.
Check whether the communication protocol is correctly
configured.
The relay malfunctions.
Check whether the output cabling of the relay is correct.
Boolean value input fails.
Check whether the alarming states are correctly set.
Check whether the cabling is correct.
The humidity/temperature
sensor generates an alarm at
normal temperatures.
Check whether the humidity/temperature sensor is
correctly connected.
Check whether the alarming threshold is correctly set.
The humidity/temperature
query results are invalid values.
Check whether the humidity/temperature sensor is
correctly connected.
Check whether the DIP switch SW_THE is correctly set.
Check whether the sensor fails, for example, by comparing
it with another sensor.
The water sensor generates a
false alarm.
Check whether the water sensor is correctly connected.
Check whether the DIP switch SW_BKE 1 is correctly set.
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