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
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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

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About This Document
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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

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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
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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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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.

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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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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

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Item
Description
(L ×W ×H)
Dimensions inside the wall
(L ×W ×H)
51.5mm×63.5mm×16.5mm
Weight
0.2 kg
System memory
128 MB DDR2
32 MB Flash
Power specifications
Power input
12 V±10%
PoE power: in
compliance with IEEE
802.3af/at
Maximum power
consumption
8.7 W
NOTE
The actual maximum power
consumption depends on local
laws and regulations.
Environment specifications
Operating temperature and
altitude
-60 m to +1800 m: 0°C to
+40°C
1800 m to 5000 m:
Temperature decreases by
1°C every time the altitude
increases 300 m.
Storage temperature
-40°C to +70°C
Operating humidity
5% to 95%
(non-condensing)
Ingress Protection Rating
IP20
Atmospheric pressure
70 kPa to 106 kPa
1.4 Ordering Information
To place an order, contact the Huawei local office.
Part Number
Description
50082735
Broadband Network Terminal,R240D,5*RJ45,
2*RJ11,11ac, 2*2 Double Frequency

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2 AP Installation
2.1 Preparing for Installation
This section describes safety precautions and tool preparations for AP installation.
Safety Precautions
Take proper measures to prevent injuries and device damage.
Place the device in a dry and flat position away from any liquid and prevent the device
from slipping.
Keep the device clean.
Do not put the device and tools in the aisles.
Only the qualified personnel are permitted to install and remove the device and its accessories.
Before installation and operation, read the safety precautions carefully.
Tool Preparation
To installAPs, prepare tools listed in Table 2-1.
Table 2-1 Tools
Phillips screwdriver
ESD gloves
Diagonal pliers
RJ45 crimping tool
Cable cutter
Wire stripper

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Network cable tester
Multimeter
-
2.2 Installation Flowchart
The following figure shows the process.
Figure 2-1 Installation flowchart
2.3 Unpacking the Equipment
Before unpacking the carton, ensure that the packing carton is intact and not damaged or
soaked. Stop unpacking if the equipment is rusted or soggy. Then, investigate causes and
contact the supplier.
Usually, the packing list contains the following items.
Remote Radio Unit
Screws

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Quick Start Guide
Warranty card
MAC address label
SN label
If a PoE adapter is required, you need to purchase it separately.
2.4 Determining the Installation Position
Figure 2-2 shows dimensions of the R240D.
Figure 2-2 Dimensions of the R240D (unit: mm)
When determining the device installation position, comply with the following rules:
Do not deploy the device in places with high temperature, dust, noxious gas, unstable
voltage, much vibrations, or strong noise, or in places near flammable or explosive
materials and interference sources such as a large radar station, radio station, and
transformer station.
Install the device in a site that is free from leaking or dripping water, heavy dew, and
humidity, and take protective measures to prevent water from flowing into the equipment
along the cable.
Place theAP far away from electronic devices that may produce radio interference, such
as microwave ovens, otherAPs, antennas, and other radio communication devices. For
details, see Table 2-2.
Install the device in hidden places and ensure that the device do not disturb daily work
and life of residents.
Make the engineering design by fully considering such factors as hydrology, geology,
earthquake, electric power, and traffic. The selected site should comply with the
environment design specifications of communications equipment.

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Indoor devices are usually mounted on a wall or ceiling using sheet metal mounting
brackets. The installation position is determined by the site survey. Leave at least 200
mm of clearance around the device.
Table 2-2 General anti-interference requirements
Scenario
Deployment Distance Requirement
Indoor
installation
There should be at least a 7 m distance between antennas.
The antennas should be placed at least 2 m from the 4G antennas of
the carrier.
The antennas should be placed far away from electronic devices that
may produce interference, such as microwave ovens.
If antennas are embedded into APs, the deployment distance requirements on the antennas are those on
APs.
2.5 Installing the Device
The device should be isolated from strong electricity to ensure personal security and
prevent device damages.
Remove the protective film on the surface before installation to prevent electrostatic
discharge.
2.5.1 Installing the Device into an 86-Type Box
1. Use a screwdriver to remove the 86-type panel from the wall (skip this step if no 86-type
panel is installed on the wall).

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2. Connect the network cable to the GE/PoE interface and the phone cable to the phone
interface.
3. Install the device that has cables properly connected to the 86-type box, as shown in the
following figure.
It is recommended that the length of the cable in the 86-type box should be smaller than 130 mm. You
are advised to connect cables according to the figure.
4. Align the screw holes at the right and left of the device with the screw holes on the box
and secure the device on the box with a screwdriver.
5. Close the panel to complete installation.

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2.5.2 Installing the Device into Other Junction Boxes
Installing the device into a junction box (excluding an 86-type box) requires sheet metal
mounting brackets (delivered with screws), which need to be purchased separately. The
procedure is as follows:
1. Determine locations of mounting holes on the sheet metal mounting bracket based on the
distance between screw holes on the junction box. (In the following example, the screw
holes on the junction box are 83.5 mm distant from each other.)

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2. Use screws to fix the mounting bracket to the junction box. Ensure that the UP
arrowhead points upwards. If the screw holes on the junction box do not match the M4
screws, customers need to prepare the fastening screws by themselves.
3. Connect the network cable to the GE/PoE interface and the telephone line to the phone
interface.

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4. Open the front panel of the device, align the the screw holes at the right and left of the
AP with the screw holes on the mounting bracket, and secure theAP on the mounting
bracket with machine screws.
5. Close the panel.

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2.5.3 Installing the Device on a Wall or Ceiling
Installing the Device on a wall or ceiling requires sheet metal mounting brackets (delivered
with screws), which need to be purchased separately. The procedure is as follows:
1. Determine the target area on a wall or ceiling, attach the sheet metal mounting bracket
against the wall, and mark positions of the mounting holes with a marker.
2. Drill holes at the marked positions and install the plastic expansion tubes.
a. Use a 6 mm drill bit to drill holes at the marked positions.
b. Hammer the plastic expansion tubes into the holes.
3. Use the flat washer and self-tapping screws to fasten the mounting bracket to the wall or
ceiling. If the device is installed against the wall, ensure that UP arrowhead faces
upwards.