Huawei R240D Manual

R240D
Hardware Installation and
Maintenance Guide
Issue
03
Date
2016-01-26
HUAWEI TECHNOLOGIES CO., LTD.

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Copyright © Huawei Technologies Co., Ltd. 2016. 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 trademarks 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 a warranty of any kind, express or implied.
Huawei Technologies Co., Ltd.
Address:
Huawei Industrial Base
Bantian, Longgang
Shenzhen 518129
People's Republic of China
Website:
http://e.huawei.com

R240D
Hardware Installation and Maintenance Guide
About This Document
Issue 03 (2016-01-26)
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Copyright © Huawei Technologies Co., Ltd.
ii
About This Document
Intended Audience
This document describes hardware features of the R240D and provides basic installation
methods.
This document is intended for:
Network planning engineers
Hardware installation engineers
Commissioning engineers
Onsite maintenance engineers
System maintenance engineers
Symbol Conventions
The symbols that may be found in this document are defined as follows.
Symbol
Description
Indicates an imminently hazardous situation
which, if not avoided, will result in death or
serious injury.
Indicates a potentially hazardous situation
which, if not avoided, could result in death
or serious injury.
Indicates a potentially hazardous situation
which, if not avoided, may result in minor
or moderate injury.
Indicates a potentially hazardous situation
which, if not avoided, could result in
equipment damage, data loss, performance
deterioration, or unanticipated results.
NOTICE is used to address practices not
related to personal injury.
Calls attention to important information,
best practices and tips.
NOTE is used to address information not

R240D
Hardware Installation and Maintenance Guide
About This Document
Issue 03 (2016-01-26)
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iii
Symbol
Description
related to personal injury, equipment
damage, and environment deterioration.
Change History
Changes between document issues are cumulative. The latest document issue contains all
changes made in previous issues.
Issue 03 (2016-01-26)
This version has the following updates:
Added the installation scenarios using sheet metal mounting brackets.
2.5.2 Installing the Device into Other Junction Boxes
2.5.3 Installing the Device on a Wall or Ceiling
Issue 02 (2015-12-12)
This version has the following updates:
The installation tool list is updated.
Issue 01 (2015-09-15)
Initial commercial release.

R240D
Hardware Installation and Maintenance Guide
Contents
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Contents
About This Document.................................................................................................................... ii
1 Product Overview .........................................................................................................................1
1.1 Device Structure ...........................................................................................................................................................1
1.2 Indicator Description ....................................................................................................................................................2
1.3 Basic Specifications......................................................................................................................................................4
1.4 Ordering Information....................................................................................................................................................5
2 AP Installation...............................................................................................................................6
2.1 Preparing for Installation ..............................................................................................................................................6
2.2 Installation Flowchart...................................................................................................................................................7
2.3 Unpacking the Equipment ............................................................................................................................................7
2.4 Determining the Installation Position ...........................................................................................................................8
2.5 Installing the Device.....................................................................................................................................................9
2.5.1 Installing the Device into an 86-Type Box ................................................................................................................9
2.5.2 Installing the Device into Other Junction Boxes ..................................................................................................... 11
2.5.3 Installing the Device on a Wall or Ceiling...............................................................................................................14
2.6 Cable Connection........................................................................................................................................................16
2.7 Checking the Device After Installation.......................................................................................................................18
2.8 Powering on the Device..............................................................................................................................................18
3 Logging In to the Device............................................................................................................19
3.1 Logging In to the Device Using STelnet/Telnet..........................................................................................................19
4 Hardware Failures.......................................................................................................................21
4.1 A Device Fails to Be Powered On...............................................................................................................................21
5 Appendix ......................................................................................................................................23
5.1 On-site Cable Assembly and Installation....................................................................................................................23
5.1.1 Cable Assembly Precautions....................................................................................................................................23
5.1.2 Assembling Power Cables .......................................................................................................................................24
5.1.3 Assembling Ethernet Cables....................................................................................................................................33
5.1.4 Installing Cable Accessories....................................................................................................................................47
5.1.5 Replacing the Mold of the Crimping Tool ...............................................................................................................63
5.2 Environmental Requirements for Device Operation...................................................................................................66
5.2.1 Environmental Requirements for an Equipment Room ...........................................................................................66

R240D
Hardware Installation and Maintenance Guide
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5.2.2 Requirements for Power Supply..............................................................................................................................74
5.3 Equipment Grounding Specifications.........................................................................................................................76
5.3.1 General Grounding Specifications...........................................................................................................................76
5.3.2 Grounding Specifications for an Equipment Room.................................................................................................77
5.3.3 Grounding Specifications for Devices.....................................................................................................................77
5.3.4 Grounding Specifications for Communications Power Supply ...............................................................................77
5.3.5 Grounding Specifications for Signal Cables............................................................................................................78
5.3.6 Specifications for Laying Out Grounding Cables....................................................................................................78
5.4 Engineering Labels for Cables....................................................................................................................................79
5.4.1 Introduction to Labels..............................................................................................................................................79
5.4.2 Engineering Labels for Optical Fibers.....................................................................................................................87
5.4.3 Engineering Labels for Network Cables..................................................................................................................90
5.4.4 Engineering Labels for User Cables ........................................................................................................................91
5.4.5 Engineering Labels for Power Cables......................................................................................................................92
5.5 Guide to Using Optical Modules ................................................................................................................................95
5.6 Fault Tag.....................................................................................................................................................................98
5.7 Installation Checklist ..................................................................................................................................................99

R240D
Hardware Installation and Maintenance Guide
1 Product Overview
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1 Product Overview
1.1 Device Structure
Figure 1-1 shows the appearance of the R240D.
Figure 1-1 Appearance of the R240D
Table 1-1 describes interfaces on the R240D.
Table 1-1 Interfaces on the R240D
No.
Name
Description
1
Phone
Phone interface: connects to
a traditional PSTN.
2
GE/PoE
10/100/1000 Mbit/s
interface: used to connect to
the central AP and supports

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Hardware Installation and Maintenance Guide
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No.
Name
Description
PoE power input.
3
ETH0 to ETH3
10/100 Mbit/s interface:
connects to the wired
Ethernet.
Seen from the bottom, the
four Ethernet interfaces are
ETH0, ETH1, ETH2, and
ETH3 from left to right.
4
Phone
Phone interface: connects to
a POTS phone or modem
device.
5
Default
Reset button: restores
factory settings and restarts
the device if you hold down
the button more than 3
seconds.
6
DC 12 V
The device supports the PoE
power supply and DC power
supply.
To connect the device to a
DC power source, use the
power adapter delivered
with the device; otherwise,
the device maybe damaged.
1.2 Indicator Description
R240D provides only one indicator, as shown in Figure 1-2.

R240D
Hardware Installation and Maintenance Guide
1 Product Overview
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Figure 1-2 Indicator on the R240D
The indicator is located inside the panel, which turns on after the AP is powered on.
Indicator colors may vary slightly at different temperature.
Table 1-2 Description of the indicator on the R240D
Type
Color
Status
Description
Default status after
power-on
Green
Steady on
The AP is just
powered on and the
software is not
started yet.
Software startup
status
Green
Steady on after
blinking once
After the system is
reset and starts
uploading the
software, the
indicator blinks
green once. Until the
software is uploaded
and started, the
indicator remains
steady green.
Running status
Green
Blinking once every
2s (0.5 Hz)
The system is
running properly,
the Ethernet
connection is
normal, and STAs
are associated with
the AP.
Blinking once every
5s (0.2 Hz)
The system is
running properly,
the Ethernet
connection is

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Hardware Installation and Maintenance Guide
1 Product Overview
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Type
Color
Status
Description
normal, and no STA
is associated with
the AP. The system
is in low power
consumption state.
Alarm
Green
Blinking once
Alarm Green every
0.25s (4 Hz)
The software is
being upgraded.
After the
software is
uploaded and
started, the AP
working in Fit
AP mode
requests to go
online on the AC
and maintains
this state until it
goes online
successfully on
the AC (before
the CAPWAP
link is
established).
The AP
registration fails
(the CAPWAP
link is
disconnected).
Fault
Red
Steady on
A fault that affects
services has
occurred, such as a
DRAM detection
failure or system
software loading
failure. The fault
cannot be
automatically
rectified and must be
rectified manually.
1.3 Basic Specifications
Table 1-3 Basic specifications of the R240D
Item
Description
Technical specifications
Dimensions outside the wall
140mm×86mm×25mm