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Huawei R250D-E Hardware Installation And Maintenance Manual
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Huawei R250D-E Hardware Installation And Maintenance Manual

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R250D-E
Hardware Installation and
Maintenance Guide
Issue
01
Date
2016-09-30
HUAWEI TECHNOLOGIES CO., LTD.

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Summary of Contents for Huawei R250D-E

  • Page 1 R250D-E Hardware Installation and Maintenance Guide Issue Date 2016-09-30 HUAWEI TECHNOLOGIES CO., LTD.
  • Page 2 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"...

  • Page 3: About This Document

    R250D-E Hardware Installation and Maintenance Guide About This Document About This Document Intended Audience This document describes hardware features of the R250D-E and provides basic installation methods. This document is intended for: Network planning engineers Hardware installation engineers Commissioning engineers...
  • Page 4 Change History Changes between document issues are cumulative. The latest document issue contains all changes made in previous issues. Issue 01 (2016-09-30) Initial commercial release Issue 01 (2016-09-30) Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd.
  • Page 5 5.1.5 Replacing the Mold of the Crimping Tool.........................61 5.2 Environmental Requirements for Device Operation....................64 5.2.1 Environmental Requirements for an Equipment Room.................... 64 5.2.2 Requirements for Power Supply..........................72 Issue 01 (2016-09-30) Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd.
  • Page 6 5.4.4 Engineering Labels for User Cables.......................... 90 5.4.5 Engineering Labels for Power Cables........................91 5.5 Guide to Using Optical Modules..........................94 5.6 Fault Tag..................................97 5.7 Installation Checklist..............................98 Issue 01 (2016-09-30) Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd.
  • Page 7 86–type box in a room. It is equipped with a built-in antenna and a hidden indicator; therefore, installation of the R250D-E does not affect indoor decorations or designs. It also has an IEEE 802.11a/b/g/n/ac/ac Wave 2 wireless module and can work on both 5 GHz and 2.4 GHz frequency bands.
  • Page 8 R250D-E Hardware Installation and Maintenance Guide 1 Product Overview 1.1 Device Structure Figure 1-1 shows the appearance of the R250D-E. Figure 1-1 Appearance of the R250D-E GE0/PoE_IN Table 1-1 describes ports on the R250D-E. Table 1-1 Interface description Name Description...
  • Page 9 Hardware Installation and Maintenance Guide 1 Product Overview NOTE l The R250D-E supports the following power supply modes: PoE power supply and DC power supply. l When the device uses the DC power supply, use a power adapter for power supply; otherwise, the device may be damaged.
  • Page 10 AC (before the CAPWAP link is established). l The AP registration fails (the CAPWAP link is disconnected). Issue 01 (2016-09-30) Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd.
  • Page 11 The fault cannot be automatically rectified and must be rectified manually. 1.3 Basic Specifications Table 1-3 provides basic specifications of the R250D-E. Table 1-3 Basic specifications Item Description Physical Dimensions (H x 36mm x 86mm x 140mm specifications...
  • Page 12 Atmospheric 53 kPa to 106 kPa pressure 1.4 Ordering Information To place an order, contact technical support personnel. Part Number Description 50082922 R250D-E Mainframe(11ac,2x2 Double Frequency,Built-in Antenna) Issue 01 (2016-09-30) Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd.
  • Page 13 2.3 Unpacking the Equipment 2.4 Determining the Installation Position 2.5 Installing the Device 2.6 Cable Connection 2.7 Checking the Device After Installation 2.8 Powering on the Device Issue 01 (2016-09-30) Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd.
  • Page 14 To install APs, prepare tools listed in Table 2-1. Table 2-1 Tools Protective gloves ESD gloves Phillips screwdriver Slip-proof glove Marker Hammer drill Claw hammer Diagonal pliers Wire stripper Issue 01 (2016-09-30) Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd.
  • Page 15 RJ45 crimping tool Cable cutter Network cable tester Multimeter Ladder Safety helmet Safety belt Anti-skid shoes 2.2 Installation Flowchart The following figure shows the process for installing an AP. Issue 01 (2016-09-30) Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd.
  • Page 16 Issue 01 (2016-09-30) Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd.
  • Page 17 The procedure is as follows: 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). Issue 01 (2016-09-30) Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd.
  • Page 18 Close the cover. If torx security screws are used to prevent theft, use a T9 torx security screwdriver to tighten the torx security screws into the device. ST2.5 0.16N•m NOTE You need to separately prepare the T9 torx security screwdriver. Issue 01 (2016-09-30) Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd.
  • Page 19 AP on the desk steadily. NOTE You need to separately purchase a desktop stand. 2.6 Cable Connection Table 2-3 describes the cable connections. Figure 2-2 Appearance of the R250D-E GE0/PoE_IN Issue 01 (2016-09-30) Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd.
  • Page 20 If the R250D-E needs to connect to the Ethernet, ensure that the Ethernet cable is working properly. If the Ethernet cable is not working properly, the R250D-E may fail to be powered on or fail to work. Before connecting an Ethernet cable to the R250D-E, use the cable test tool to check whether the cable is qualified.
  • Page 21 After the device is powered on, observe indicator on the device to determine the system running status. For details, see 1.2 Indicator Description. NOTE Do not frequently power on and off the device. Issue 01 (2016-09-30) Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd.
  • Page 22 Hardware Installation and Maintenance Guide 3 Logging In to the Device Logging In to the Device About This Chapter 3.1 Logging In to the Device Using STelnet/Telnet Issue 01 (2016-09-30) Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd.
  • Page 23 Step 3 Start the CLI on the PC and access the IP address 169.254.1.1 of the device using STelnet V2. Step 4 Enter the user name and password as prompted to log in to the user interface. ----End Issue 01 (2016-09-30) Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd.
  • Page 24 Hardware Installation and Maintenance Guide 4 Hardware Failures Hardware Failures About This Chapter This section describes common methods for troubleshooting typical hardware faults. 4.1 A Device Fails to Be Powered On Issue 01 (2016-09-30) Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd.
  • Page 25 The line is faulty (the network cable or distribution frame is damaged). l The device is faulty. Issue 01 (2016-09-30) Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd.
  • Page 26 4. If the device still cannot be powered on, the device itself is faulty. Contact technical support personnel or Huawei agent and ask them to replace the device. Issue 01 (2016-09-30) Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd.
  • Page 27 5.2 Environmental Requirements for Device Operation 5.3 Equipment Grounding Specifications 5.4 Engineering Labels for Cables 5.5 Guide to Using Optical Modules 5.6 Fault Tag 5.7 Installation Checklist Issue 01 (2016-09-30) Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd.
  • Page 28 Precautions for Assembly Use dedicated tools or tools delivered by Huawei and follow the methods given here during assembly. Hold terminals of cables instead of pulling the cables themselves when installing or removing cable components.
  • Page 29 Step 1 Based on the cross-sectional area of the cable conductor, strip a length of insulation coating C to expose the conductor D of length L1, as shown in Figure 5-2. The recommended values of L1 are listed in Table 5-1. Issue 01 (2016-09-30) Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd.
  • Page 30 When you strip a power cable, do not damage the conductor of the cable. l If the bare crimping terminal is not provided by Huawei, the value of L1 is 1 mm (0.04 in.) to 2 mm (0.08 in.) greater than the value of L.
  • Page 31 Step 5 Push the heat shrink tubing (A) toward the connector until the tube covers the crimped part, and then use a heat gun to heat the tube, as shown in Figure 5-5. Issue 01 (2016-09-30) Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd.
  • Page 32 Figure 5-6 Components of a JG terminal and a power cable A. JG terminal B. Heat-shrinkable tubing C. Insulation layer of a power D. Conductor of a power cable cable Issue 01 (2016-09-30) Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd.
  • Page 33 NOTICE l When you strip a power cable, do not damage the conductor of the cable. l If the bare crimping terminal is not provided by Huawei, you can adjust the value of L as required. Figure 5-7 Stripping a power cable (JG terminal)
  • Page 34 Step 5 Push the heat shrink tubing toward the connector until the tube covers the crimped part, and then use a heat gun to heat the tube, as shown in Figure 5-10. Figure 5-10 Heating the heat shrink tubing (JG terminal) Issue 01 (2016-09-30) Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd.
  • Page 35 5-12. The recommended values of L1 are listed in Table 5-3. NOTICE When you strip a power cable, do not damage the conductor of the cable. Figure 5-12 Stripping a power cable (cord end terminal) Issue 01 (2016-09-30) Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd.
  • Page 36 Figure 5-13 Putting the cord end terminal onto the conductor Step 3 Crimp the joint parts of the cord end terminal and the conductor, as shown in Figure 5-14. Issue 01 (2016-09-30) Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd.
  • Page 37 5.3 (0.21) 16 (0.025) 6 (0.24) 25 (0.039) 8.7 (0.34) 35 (0.054) 10 (0.39) ----End 5.1.3 Assembling Ethernet Cables Assembling the Shielded RJ45 Connector and Ethernet Cable Issue 01 (2016-09-30) Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd.
  • Page 38 Step 2 Remove a 30 mm (1.18 in.) long section of the jacket, cut off the nylon twine inside the jacket, and cut a no more than 5 mm (0.20 in.) cleft in the jacket, as shown in Figure 5-17. Issue 01 (2016-09-30) Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd.
  • Page 39 Along the edge of the metal shell, cut off the aluminum foil shield layer and ensure that there is no surplus copper wire. The exposed twisted-pair cable is about 20 mm (0.79 in.) long, as shown in Figure 5-19. Issue 01 (2016-09-30) Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd.
  • Page 40 Step 6 Align the four pairs of cables in the holder, as shown in Figure 5-22. The connections between the wires and the pins are shown in Figure 5-23 and listed in Table 5-5. Issue 01 (2016-09-30) Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd.
  • Page 41 Table 5-5 Connections between wires and pins (using a straight-through cable as an example) Matching Pins of Wires Wire Color White-Orange Orange White-Green Blue White-Blue Green White-Brown Issue 01 (2016-09-30) Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd.
  • Page 42 Step 9 Push the metal shell toward the connector body until the wire holder and the connector body are engaged completely. Crimp the connector, as shown in Figure 5-26. Issue 01 (2016-09-30) Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd.
  • Page 43 Step 11 To complete the assembly of the other end, repeat Step 1 through Step ----End Assembling an Unshielded RJ45 Connector and Ethernet Cable Context Figure 5-28 shows the components of an unshielded RJ45 connector and cable. Issue 01 (2016-09-30) Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd.
  • Page 44 Table 5-6. Figure 5-30 Connections between wires and pins (unit: mm (in.)) White-Orange Orange White-Green Blue White-Blue Green White-Brown Pin 8 Brown Pin 1 Issue 01 (2016-09-30) Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd.
  • Page 45 The contact strips must be parallel to each other, with an offset of less than ± 5°. The top margin of a strip must be parallel to the axis of the connector, with an offset of less than ± 10°. Issue 01 (2016-09-30) Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd.
  • Page 46 Figure 5-33 Contact strips of the same height Step 2 Hold an RJ45 connector and turn it 45°. Observe the top edges of the metal contact strips. Figure 5-34 shows an unqualified piece. Issue 01 (2016-09-30) Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd.
  • Page 47 Step 5 Hold the connector with the side facing towards you, and check whether you can see the cross-sections of the wires. Ensure that the ends of the wires are in good contact with the edge Issue 01 (2016-09-30) Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd.
  • Page 48 Testing the Connection of Assembled Cables Context Huawei provides two types of Ethernet cables: straight-through cables and crossover cables. Straight-through cables are connected in a one-to-one manner. They are used to connect terminals such as a computer or switch to network devices.
  • Page 49 Turn the switch to the S position to slow down lighting of the indicators so that you can see the indicators more clearly, as shown in Figure 5-39. Issue 01 (2016-09-30) Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd.
  • Page 50 (right) section of the tester, the indicators turn on in the sequence of 3-6-1-4-5-2-7-8-G. If the indicators do not come on in this sequence, the Ethernet cable is unqualified. Issue 01 (2016-09-30) Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd.
  • Page 51 For example, in this document, the adapters of cable connectors have separate interfaces. In the actual situation, the adapters may have interfaces fixed on equipment. Use dedicated tools provided or specified by Huawei and follow the installation procedure described here.
  • Page 52 Sharp objects must not touch cable wiring to prevent damage to cables. To protect power cables, route power cables of the active and standby power modules separately. Installing Power Adapters Installing the OT Terminal Issue 01 (2016-09-30) Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd.
  • Page 53 Figure 5-43 Installing an OT terminal, showing the orientation of crimping sleeve Place the spring washer and flat washer in turn, mount a matching screw, and fasten it clockwise, as shown in Figure 5-44. Issue 01 (2016-09-30) Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd.
  • Page 54 – Bend the upper OT terminal at a 45- or 90-degree angle, as shown in Figure 5-46. – Cross the two terminals, as shown in Figure 5-47. Issue 01 (2016-09-30) Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd.
  • Page 55 Step 1 Hold a cord end terminal upright and place it on a terminal jack, as shown in Figure 5-48. To ensure bump contact and dense connection, place the plain side of the terminal outwards. Issue 01 (2016-09-30) Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd.
  • Page 56 Step 3 Move the cable slightly and ensure that it is securely connected. Step 4 Before you remove a cord end terminal, loosen the screw counterclockwise. ----End Installing Ethernet Adapters Issue 01 (2016-09-30) Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd.
  • Page 57 Pull the connector slightly and ensure that it is securely connected, as shown in Figure 5-52. Issue 01 (2016-09-30) Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd.
  • Page 58 Installing an Unshielded Ethernet Connector Procedure Step 1 Hold the male and female connectors, with the male connector facing the female connector, as shown in Figure 5-54. Issue 01 (2016-09-30) Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd.
  • Page 59 Step 3 A crisp click indicates that the connector is locked by the locking key. Pull the connector slightly and ensure that it is securely connected. Figure 5-56 shows an installed Ethernet connector. Figure 5-56 Installed unshielded Ethernet connector Issue 01 (2016-09-30) Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd.
  • Page 60 Step 2 Clean the pins again by using dust-free cotton. If necessary, clean the pins by using an air gun. Ensure that the pins are free from any fiber or debris. ----End Installing an FC Fiber Connector Issue 01 (2016-09-30) Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd.
  • Page 61 Figure 5-59 Feeding the male connector into the female connector Step 4 Fasten the locking nut clockwise and ensure that the connector is securely installed, as shown Figure 5-60. Issue 01 (2016-09-30) Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd.
  • Page 62 Step 1 Remove the dustproof cap of the LC fiber connector and store it for future use. Step 2 Align the core pin of the male connector with that of the female connector, as shown in Figure 5-62. Issue 01 (2016-09-30) Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd.
  • Page 63 Figure 5-63 Feeding the male connector into the female connector Step 4 A clicking sound indicates that the male connector is locked, as shown in Figure 5-64. Figure 5-64 Installed LC connector Issue 01 (2016-09-30) Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd.
  • Page 64 (not the pigtail). When you hear a click, the fiber connector is secured by the clips (internal parts, not illustrated in the figure). Pull the fiber connector gently. If the connector does not loosen, the installation is complete. See Figure 5-67. Issue 01 (2016-09-30) Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd.
  • Page 65 Step 1 Remove the dustproof cap of the MPO fiber connector and store it for future use. Step 2 Align the core pin of the male connector with that of the female connector, as shown in Figure 5-69. Issue 01 (2016-09-30) Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd.
  • Page 66 Figure 5-70 Installed MPO fiber connector Step 4 To disassemble an MPO fiber connector, hold the shell labeled "PULL" and remove the male connector, as shown in Figure 5-71. Issue 01 (2016-09-30) Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd.
  • Page 67 Step 2 Hold the handles of the COAX crimping tools to open the self-locking mechanism. The jaw of the COAX crimping tools opens automatically, as shown in Figure 5-73. Issue 01 (2016-09-30) Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd.
  • Page 68 Figure 5-74 Removing the mold from the COAX crimping tools Step 4 Place the mold to be installed into the jaw of the COAX crimping tools and align the screw holes, as shown in Figure 5-75. Issue 01 (2016-09-30) Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd.
  • Page 69 Step 6 Hold the handles of the COAX crimping tools with one hand. Tighten the two fastening screws clockwise. Figure 5-77 Figure 5-78shows the mold installed in the COAX crimping tool. Issue 01 (2016-09-30) Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd.
  • Page 70 The equipment room should also follow local regulations concerning the industrial construction, environmental protection, fire safety, and civil air defense. Construction must conform to government standards, regulations, and other requirements. Issue 01 (2016-09-30) Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd.
  • Page 71 To ensure easy maintenance and management, place the equipment in different rooms. Figure 5-79 shows the layout of the equipment room. Issue 01 (2016-09-30) Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd.
  • Page 72 You can connect them to ground using a one megohm current-limiting resistor and connection line. Load-bearing The floor must bear loads larger than 150 kg/m (0.21 bf/in. capacity Issue 01 (2016-09-30) Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd.
  • Page 73 Dust on devices may cause electrostatic discharge and result in poor contact for connectors or metal connection points. This problem can shorten the life span of devices and cause faults. Issue 01 (2016-09-30) Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd.
  • Page 74 Table 5-12 Requirements for corrosive gas concentration Chemical active material Unit Concentration ≤0.20 mg/m ≤0.006 mg/m ≤0.05 mg/m ≤0.01 mg/m Take the following measures to meet the requirements: Issue 01 (2016-09-30) Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd.
  • Page 75 Install a lightning proof device like a lightning rod outside the room. l The lightning proof ground shares the same grounding body with the protective ground of the room. Issue 01 (2016-09-30) Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd.
  • Page 76 The upper end of the grounding body should be at least 0.7 m (2.30 ft) over the ground. In cold areas, bury the grounding body below the frozen ground. l Measure the grounding resistance periodically to ensure effective grounding. Issue 01 (2016-09-30) Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd.
  • Page 77 Use the galvanized flat steel with cross-sectional area of 40 mm x 4 mm (1.58 in. x 0.158 in.) or 50 mm x 5 mm (1.97 in. x 0.197 in.). Issue 01 (2016-09-30) Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd.
  • Page 78 For power distribution capacity in the equipment room, both the working current and fault current of the devices should be considered. Ensure that independent AC power supplies Issue 01 (2016-09-30) Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd.
  • Page 79 UPS can rely on concatenation or parallel connection. When an inverter or a UPS is used, the active inverter is determined by the maximum power and a backup inverter is required. Issue 01 (2016-09-30) Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd.
  • Page 80 Improve reliability of the AC power supply system to reduce the necessary capacity of storage batteries. For small offices, increase the capacity of storage batteries if it is difficult to enhance reliability of the AC power supply system. Issue 01 (2016-09-30) Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd.
  • Page 81 The grounding resistance in an area where the earth resistance rate is high should be less than 10 ohms. 5.3.3 Grounding Specifications for Devices Table 5-17 lists the equipment grounding specifications. Issue 01 (2016-09-30) Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd.
  • Page 82 If the power supply and the equipment are in the same equipment room, use the same protective ground bar for them if possible. Issue 01 (2016-09-30) Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd.
  • Page 83 Table 5-20 Specifications for laying out ground cables Description The grounding wire should not run parallel to or twist around the signal cable. Issue 01 (2016-09-30) Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd.
  • Page 84 Color: chalk white Material: polyester (PET) Ambient temperature: -29°C (-20.2°F) to +149°C (300.2°F) Printed by a laser printer and written with a marker Pass UL and CSA authentication Issue 01 (2016-09-30) Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd.
  • Page 85 The identification plate has an embossed area 0.2 mm x 0.6 mm (0.008 in. x 0.02 in.) around (symmetric on both sides), and the area in the middle is for affixing the label, as shown in Figure 5-82. Issue 01 (2016-09-30) Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd.
  • Page 86 Template for Printing You can obtain a template from the Huawei local office to print labels. The template is made in Microsoft Word. Follow these instructions to use the template: You can modify the contents of the template. Do not change settings of centered characters, direction, and fonts.
  • Page 87 After the page setup has been made correctly, save it for future use. This page setup is only necessary the first time you use the template to print the labels. Issue 01 (2016-09-30) Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd.
  • Page 88 Table 5-21 Standard typeface for handwriting Determine the size of characters based on the number of letters or digits and ensure that the characters are distinct and tidy. Issue 01 (2016-09-30) Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd.
  • Page 89 – The identification card should be downward when you lay out the cable horizontally. Figure 5-85 Text area of the label Procedure for attaching labels Figure 5-86 shows the methods and procedures for attaching labels. Issue 01 (2016-09-30) Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd.
  • Page 90 The identification card is to the right of the cable in vertical cabling. The identification card is on the top of the cable in horizontal cabling. Make sure that the label is facing out. Issue 01 (2016-09-30) Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd.
  • Page 91 The side with "TO:" that is facing outside carries the location information of the opposite end; and the other side carries the location information of the local end. Issue 01 (2016-09-30) Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd.
  • Page 92 C: physical slot Numbered in top-down and left-right order starting number from 01. For example, 01 is the first slot at the top left of the chassis. Issue 01 (2016-09-30) Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd.
  • Page 93 Table 5-23 Information on labels affixed to a fiber between a device and an ODF Content Meaning Example MN-B-C-D- MN: cabinet For example, A01. number B: chassis Numbered in bottom-up order with two digits, for number example, 01. Issue 01 (2016-09-30) Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd.
  • Page 94 Example of the Label Figure 5-90 shows a sample label on an optical fiber. Figure 5-90 Sample label on an optical fiber between the device and the ODF Issue 01 (2016-09-30) Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd.
  • Page 95 The contents of the labels for network cables connecting hubs and devices or agents and the network cables for other purposes should be specified according to actual connections. The details are as follows: Issue 01 (2016-09-30) Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd.
  • Page 96 Table 5-25 Contents of the engineering labels for user cables Content Meaning Example MN-B-C-D MN: cabinet For example, A01 is the first cabinet in row A. number Issue 01 (2016-09-30) Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd.
  • Page 97 "MDF-G01-01-01" indicates that the opposite end of the user cable is connected to the terminal in row 01, column 01 of the MDF in row G, column 01 in the equipment room. 5.4.5 Engineering Labels for Power Cables Issue 01 (2016-09-30) Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd.
  • Page 98 For details, see Figure 5-93. Figure 5-93 Example of the labels for DC power cables Issue 01 (2016-09-30) Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd.
  • Page 99 The label only carries location information about the opposite equipment and the power socket; information about the local end is unnecessary. Issue 01 (2016-09-30) Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd.
  • Page 100 The system may fail to obtain information about non-Huawei-certified optical modules or obtain incorrect information. You are advised to use Huawei-certified optical modules. Obtain the electronic label of the optical module and contact technical support personnel to confirm whether it is a Huawei-certified optical module.
  • Page 101 This protects the receptacle against contamination on the surface of the optical connector. Figure 5-96 Cleaning optical fibers with special cleaning tissues Issue 01 (2016-09-30) Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd.
  • Page 102 Clean a receptacle with a cotton swab, as shown in Figure 5-100. Clean an optical connector with cleaning tissues. Issue 01 (2016-09-30) Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd.
  • Page 103 If a fiber is inserted into an optical module of a different mode, faults may occur. For example, optical signals will be lost. 5.6 Fault Tag *Customer name: Address: Contact person: Tel.: Fax: Issue 01 (2016-09-30) Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd.
  • Page 104 5.7 Installation Checklist Applic pone able Check Item Scope Indepen The air vent of the device is free from blockage to ensure dent AC normal heat dissipation. Issue 01 (2016-09-30) Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd.
  • Page 105 You are advised to configure dual power modules for a PoE General switch for power redundancy backup and providing power for more APs. Issue 01 (2016-09-30) Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd.
  • Page 106 If APs are placed in a network box, ensure that the box is well-ventilated, clean, and dustless, and the ventilation holes are not blocked. Issue 01 (2016-09-30) Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd.
  • Page 107 Signal cable connectors are correctly installed and securely connected to the device. Wires of each signal cable are General securely cramped in the connectors and pass connectivity tests. Issue 01 (2016-09-30) Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd.
  • Page 108 Fiber connectors and optical ports that are not used must be protected with protective caps or plugs. Cleaning must be carried out in strict accordance with Huawei tool specifications. The feeder cables shall not be bent or twisted, with no copper General wire exposed.
  • Page 109 The bare wires of network and feeder cables should be Outdoor covered by the winding pipes, flexible metal conduit, PVC pipes, or galvanization pipes. The cable outlet and inlet are sealed to prevent dusts. Issue 01 (2016-09-30) Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd.
  • Page 110 When outdoor APs use single-polarized antennas, the Outdoor horizontal distance between 2.4G antennas should be at least antenna 1 m and that between 5G antennas should be at least 0.5 m. Issue 01 (2016-09-30) Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd.
  • Page 111 General modul used with a multimode optical module. On most optical modules, the fibers of different types cannot be used together. Issue 01 (2016-09-30) Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd.
  • Page 112 If a short-distance optical fiber is used for a long-distance optical module, especially in loopback scenarios, use an General optical attenuator to prevent the optical module from being burnt. Issue 01 (2016-09-30) Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd.
  • Page 113 R250D&R250D-E Product Description Issue Date 2016-07-05 HUAWEI TECHNOLOGIES CO., LTD.
  • Page 114 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"...
  • Page 115 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 Issue 01 (2016-07-05) Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd.
  • Page 116 Changes between document issues are cumulative. The latest document issue contains all the changes made in previous issues. Changes in Issue 01 (2016-07-05) This is the initial commercial release. Issue 01 (2016-07-05) Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd.

  • Page 117: Table Of Contents

    3.8 Spectrum Analysis ..............................16 4 Technical Specifications ......................17 4.1 Basic Specifications ..............................17 4.2 Radio Specifications (R250D) ............................ 18 4.3 Radio Specifications (R250D-E) ..........................22 4.4 Standards Compliance ..............................25 Issue 01 (2016-07-05) Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd.

  • Page 118: Product Positioning And Characteristics

    Compared with traditional distributed AP solutions, the AC in Huawei agile distributed Wi-Fi solution needs to manage a smaller number of APs. A large number of RUs can be deployed, which improves the overall performance and reduces network deployment costs.

  • Page 119: Product Characteristics

    To prevent these problems, lots of calculation and verification work needs to be carried out. Huawei distributed solution solves these problems. In this solution, RUs are placed in rooms, and signals are transmitted over wired cables, without wall penetration loss, delivering high-quality wireless access services.
  • Page 120 Flexible Installation Modes In addition to an 86-type box, the R250D can be installed on a wall or ceiling, and the R250D-E can be installed on a desk, rendering the installation location flexible. Hidden Indicator, Zero Impact on Sleep The RU uses a hidden indicator design. When being turned on, the indicator has soft light.
  • Page 121 RUs to cover dozens of rooms. Hierarchical Processing Technology, High Wireless Forwarding Capability Huawei distributed solution uses innovative hierarchical processing technology. The central AP manages RUs in a centralized manner and concurrently forwards service traffic, while the RUs only process radio signals. The hierarchical design makes the network structure clearer and reduces the processing burden on the central AP and RUs, improving efficiency and optimizing the overall wireless forwarding performance.

  • Page 122: Hardware Structure

    Hardware Structure 2.1 R250D Appearance The actual device appearance may be different from the following device appearance; these differences will not affect device functions. Figure 2-1 R250D appearance Issue 01 (2016-07-05) Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd.
  • Page 123 3 seconds. GE0/PoE_IN: 10/100/1000M port: connects to the wired Ethernet and supports PoE input. The R250D provides only one indicator, as shown in Figure 2-3. Issue 01 (2016-07-05) Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd.
  • Page 124 Running status Green Blinking once every The system is 2s (0.5 Hz) running properly, the Ethernet connection is normal, and STAs are associated with the AP. Issue 01 (2016-07-05) Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd.
  • Page 125 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. Issue 01 (2016-07-05) Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd.

  • Page 126: R250D-E

    2.2 R250D-E Appearance The actual device appearance may slightly differ from the following device appearance, but these differences will not affect device functions. Figure 2-4 AP2050DN-E appearance Issue 01 (2016-07-05) Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd.
  • Page 127 GE0/PoE_IN: 10/100/1000M port: connects to the wired Ethernet and supports PoE input. LED Indicator The R250D-E provides only a single indicator, as shown in Figure 2-6. Issue 01 (2016-07-05) Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd.
  • Page 128 Ethernet connection is normal, and STAs are associated with the AP. Blinking once every The system is 5s (0.2 Hz) running properly, the Ethernet connection is Issue 01 (2016-07-05) Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd.
  • Page 129 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. Issue 01 (2016-07-05) Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd.

  • Page 130: Product Features

    Unscheduled automatic power save delivery (U-APSD)  Control and Provisioning of Wireless Access Points (CAPWAP)  Automatic login  Extended Service Set (ESS)  Multi-user CAC  Issue 01 (2016-07-05) Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd.

  • Page 131: Network Features

    WEP authentication/encryption using a 64-bit, 128-bit, or 152-bit encryption key  WPA/WPA2-PSK authentication and encryption (WPA/WPA2 personal edition)  WPA/WPA2-802.1x authentication and encryption (WPA/WPA2 enterprise edition)  Issue 01 (2016-07-05) Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd.

  • Page 132: Maintenance Features

    Locating service features supported by the AP are as follows: Locates tags manufactured by AeroScout or Ekahau.  Locates Wi-Fi terminals.  Works with eSight to locate rogue devices.  The R250D-E supports Bluetooth location.  Issue 01 (2016-07-05) Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd.

  • Page 133: Spectrum Analysis

    (at 2.4 GHz frequency band only), wireless audio transmitters (at both the 2.4 GHz and 5 GHz frequency bands), wireless game controllers, and microwaves. Works with eSight to locate and perform spectrum analysis on interference sources.  Issue 01 (2016-07-05) Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd.

  • Page 134: Technical Specifications

    1°C every time the altitude increases 300 m. Storage -40°C to +70°C temperature Operating 5% to 95% (non-condensing) humidity IP rating IP20 Atmospheric 53 kPa to 106 kPa pressure Issue 01 (2016-07-05) Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd.

  • Page 135: Radio Specifications (R250D)

    R250D&R250D-E Product Description 4 Technical Specifications Table 4-2 R250D-E Basic specifications Item Description Physical Dimensions (H x 36mm x 86mm x 140mm specifications W x D) Weight 0.26kg System memory 256MB DDR3L  32MB FLASH  Power Power input DC:48V±5% ...
  • Page 136 -85 dBm @ -82 dBm @ -80 dBm @    24 Mbit/s MCS4 MCS4 -84 dBm @ -78 dBm @ -76 dBm @    Issue 01 (2016-07-05) Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd.
  • Page 137 -86 dBm @   MCS8 MCS8 -86 dBm @ -84 dBm @   MCS9 MCS9 -85 dBm @ -80 dBm @   MCS10 MCS10 Issue 01 (2016-07-05) Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd.
  • Page 138 -75 dBm @ -72 dBm @    MCS5NSS2 MCS4NSS2 MCS4NSS2 -72 dBm @ -71 dBm @ -68 dBm @    MCS6NSS2 MCS5NSS2 MCS5NSS2 Issue 01 (2016-07-05) Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd.

  • Page 139: Radio Specifications (R250D-E)

    For details, see the 802.11n  20 MHz: 3  Country Codes & Channels Compliance. 20 MHz: − 40 MHz: 1  40 MHz: − Issue 01 (2016-07-05) Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd.
  • Page 140 -77 dBm @   MCS12 MCS12 -76 dBm @ -73 dBm @   MCS13 MCS13 -74 dBm @ -72 dBm @   MCS14 MCS14 Issue 01 (2016-07-05) Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd.
  • Page 141 -87 dBm @ -83 dBm @    MCS1NSS1 MCS1NSS1 MCS1NSS1 -87 dBm @ -85 dBm @ -81 dBm @    MCS2NSS1 MCS2NSS1 MCS2NSS1 Issue 01 (2016-07-05) Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd.

  • Page 142: Standards Compliance

    -63 dBm @ -60 dBm @   MCS9NSS2 MCS9NSS2 4.4 Standards Compliance Safety standards UL 60950–1  IEC 60950–1  EN 60950–1  GB 4943  Issue 01 (2016-07-05) Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd.
  • Page 143 802.1X  Advanced Encryption Standards (AES) and Temporal Key Integrity Protocol (TKIP)  EAP Type (s)  Environment Standards ETSI 300 019-2-1  ETSI 300 019-2-2  Issue 01 (2016-07-05) Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd.
  • Page 144 End-users and installers must be provide with antenna installation instructions and consider removing the no-collocation statement. This device complies with Part 15 of the FCC Rules. Operation is subject to the Issue 01 (2016-07-05) Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd.
  • Page 145 Caution! Any changes or modifications not expressly approved by the party responsible for  compliance could void the user's authority to operate the equipment. Issue 01 (2016-07-05) Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd.

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