Related Manuals for Huawei AAU3940
Summary of Contents for Huawei AAU3940
- Page 1 AAU3940 Hardware Maintenance Guide Issue Date 2015-01-15 HUAWEI TECHNOLOGIES CO., LTD.
- Page 2 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.
-
Page 3: About This Document
About This Document About This Document Overview This document describes routine maintenance for an AAU3940 such as equipment maintenance and power-on and power-off operations. It also describes how to replace the AAU, modules in it, and optical modules. Product Version The following table lists the product versions related to this document. - Page 4 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. Issue 01 (2015-01-15) Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd.
- Page 5 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. Issue 01 (2015-01-15) Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd.
- Page 6 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. Issue 01 (2015-01-15) Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd.
-
Page 7: Table Of Contents
AAU3940 Hardware Maintenance Guide Contents Contents About This Document........................ii 1 Changes in AAU3940 Hardware Maintenance Guide............1 2 Routine Hardware Maintenance Items..................2 3 Powering On and Powering Off an AAU.................4 3.1 Powering on an AAU..............................5 3.2 Powering off an AAU..............................6 4 Replacing an AAU.........................8 5 Replacing the Optical Module....................16... -
Page 8: Changes In Aau3940 Hardware Maintenance Guide
1 Changes in AAU3940 Hardware Maintenance Guide Changes in AAU3940 Hardware Maintenance Guide This chapter describes changes in AAU3940 Hardware Maintenance Guide. 01 (2015-01-15) This is the first commercial release. Compared with issue Draft A (2014-10-30), no information is added to or deleted from this issue. -
Page 9: Routine Hardware Maintenance Items
All power cables are sealed properly. All CPRI fiber optic cables are free from wear, cuts, cracks, or other damage. All screws on the cover plate of the maintenance cavity are tightened. Issue 01 (2015-01-15) Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd. - Page 10 Tighten all connections. Report any other faults found during the checking, because further repairs on towers can be performed only by trained and technically-qualified field engineers. Issue 01 (2015-01-15) Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd.
-
Page 11: Powering On And Powering Off An Aau
AAU in a normal situation such as moving the equipment or anticipating a territorial blackout. You must also power off the AAU in an emergency such as a fire, smoke, or water damage. Issue 01 (2015-01-15) Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd. -
Page 12: Powering On An Aau
Keep a minimum of 7.35 m (24.11 ft) away from the front of the AAU after the RU is powered on and the AAU starts working. Process The following figure shows the process of powering on an AAU. Issue 01 (2015-01-15) Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd. -
Page 13: Powering Off An Aau
The normal input voltage of an AAU is 220 V AC and should range from 200 V AC to 240 V AC. l When an AAU is working properly, the RUN indicator is blinking (on for 1s and off for 1s), and the ALM indicator is steady off. For details about indicators, see AAU3940 Hardware Description. 3.2 Powering off an AAU An AAU can be powered off in two ways: normal power-off and emergency power-off. - Page 14 Shut off the external input power of the power equipment for the AAU. If time permits, set the corresponding circuit breaker on the power equipment for the AAU to OFF. ----End Issue 01 (2015-01-15) Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd.
-
Page 15: Replacing An Aau
Optional: If the AAU is installed on a pole top, remove the landscaping cover, as shown in the following figure. Skip this step if the AAU is installed on a pole or wall. Issue 01 (2015-01-15) Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd. - Page 16 In this case, do not remove the PGND cable. Use an M6 inner hexagon torque screwdriver to tighten the screws on the maintenance cavity, and close the cover. Step 5 Remove the faulty AAU. Issue 01 (2015-01-15) Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd.
- Page 17 AAU, and remove the AAU with both hands, as shown in Figure 4-3. Figure 4-2 Removing an AAU from a Pole or Wall a: Pole installation scenario b: Wall mounting scenario Issue 01 (2015-01-15) Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd.
- Page 18 Insert the attachment plate at the bottom of the AAU to the dovetail groove on the mounting bracket, and use a torque screwdriver to tighten the captive screws to 7 N·m (61.95 lbf·in.), as shown in Figure 4-5. Issue 01 (2015-01-15) Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd.
- Page 19 Figure 4-4 Installing the attachment plate NOTE The following figure shows the installation in the wall mounting scenario, installing an AAU on a pole is the same. Issue 01 (2015-01-15) Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd.
- Page 20 M6 hexagon socket-head cap bolts to secure the AAU to 7 N·m (61.95 lbf·in.), as shown in the following figure. Install the landscaping cover. Issue 01 (2015-01-15) Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd.
- Page 21 Close the cover for the maintenance cavity of the AAU. Step 8 Set the corresponding circuit breaker on the power equipment for the AAU to ON. Issue 01 (2015-01-15) Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd.
- Page 22 ALM indicator: steady off l ACT indicator: steady on For details about indicators, see section "Ports and Indicators" in AAU3940 Hardware Description. Step 9 Take off the ESD wrist strap or ESD gloves, and pack up all tools. Step 10 Inform the remote engineer that the AAU has been replaced.
-
Page 23: Replacing The Optical Module
Required tools and materials are available, including an ESD box or bag, and ESD gloves. Context Optical modules are inserted into the RX TX CPRI0 and RX TX CPRI1 ports on an AAU. Issue 01 (2015-01-15) Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd. - Page 24 Step 5 Install a new optical module into the AAU according to the label on the module. NOTE The optical modules to be installed must match CPRI rates. Issue 01 (2015-01-15) Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd.
- Page 25 Complete the fault form with detailed information about the replaced component. Contact the local Huawei office to handle the faulty component. Issue 01 (2015-01-15) Huawei Proprietary and Confidential...