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Summary of Contents for Huawei RRU3931E
- Page 1 RRU3931E V100R011C10 Site Maintenance Guid Issue Draft A Date 2016-03-30 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"...
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Page 3: Table Of Contents
Site Maintenance Guid Contents Contents 1 RRU3931E Site Maintenance Guide..................1 1.1 Changes in RRU3931E Site Maintenance Guide......................3 1.2 Turning On or Off Indicators............................3 1.2.1 Turning On Indicators..............................3 1.2.2 Turning Off Indicators..............................3 1.3 Powering On or Off a RRU3931E..........................3 1.3.1 Powering On a RRU3931E............................3... -
Page 4: Rru3931E Site Maintenance Guide
1 RRU3931E Site Maintenance Guide RRU3931E Site Maintenance Guide Introduction This document describes routine maintenance items for a RRU3931E, such as power-on and power-off operations. It also explains how to replace the components and modules. Product Version The following table lists the product versions related to this document. - Page 5 1.3 Powering On or Off a RRU3931E1.3 Powering On or Off a RRU3931E The indicator status of a RRU3931E must be observed following a power-on to determine its running status. Normal power-off can be used to power off a RRU3931E.
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Page 6: Changes In Rru3931E Site Maintenance Guide
The indicator status of a RRU3931E must be observed following a power-on to determine its running status. Normal power-off can be used to power off a RRU3931E. 1.3.1 Powering On a RRU3931E This section describes how to power on a RRU3931E and determine its running status by its indicator status. Issue Draft A (2016-03-30) Huawei Proprietary and Confidential Copyright ©... - Page 7 1 RRU3931E Site Maintenance Guide Prerequisites The RRU3931E and its cables have been installed. The input voltage of the RRU3931E ranges from 110 V AC to 220 V AC, and the frequency ranges from 50 Hz to 60 Hz. Context NOTICE After a RRU3931E is unpacked, power it on within 24 hours.
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Page 8: Powering Off A Rru3931E
NOTICE Do not touch the RRU3931E that is just powered off until it cools down. Step 2 Switch off the external power supply equipment for the RRU3931E to be replaced. NOTICE Take proper ESD protection measures, for example, wear ESD gloves, to prevent electrostatic damage to the RRU3931E or its electronic components. - Page 9 1 RRU3931E Site Maintenance Guide Step 3 Put on ESD gloves. Step 4 Record the horizontal angle and vertical angle of the RRU3931E. Pay attention to the direction. Step 5 Record cable connection positions on the bottom and side maintenance cavities of the RRU3931E.
- Page 10 Site Maintenance Guid 1 RRU3931E Site Maintenance Guide Figure 1-2 Demounting a RRU3931E Step 8 Install a new RRU3931E and adjust the horizontal and vertical angles to be the same as those recorded in Step 3. Use the M10 hex key screwdriver to torque the angle adjusting screw on the top to 28 N·m.
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Page 11: Replacing An Optical Module
----End Follow-up Procedure Place the replaced RRU3931E into an ESD bag. Then, place the ESD bag into a foam- padded carton or the packing box of the new RRU3931E. Fill in the fault form with the detail information of the replaced RRU3931E. - Page 12 Step 2 Switch off the external power supply equipment for the RRU3931E. Step 3 Opening the maintenance cavity covers. If the maintenance cavity covers cannot be opened because the RRU3931E is installed on a wall with large-angle adjustment, perform the following operations: Record the adjusted angle for the RRU3931E.