Table Of Contents - Zte ZXMW NR8120A Maintenance Manual

Contents
About This Manual ......................................................................................... I
Chapter 1 Routine Maintenance................................................................ 1-1
1.1 Daily Maintenance.............................................................................................. 1-1
1.1.1 Checking the Status of Boards .................................................................. 1-1
1.1.2 Checking the Current 24-Hour Performance Data....................................... 1-2
1.1.3 Checking Performance Data of the Past 10 Days ....................................... 1-2
1.1.4 Checking Alarms ...................................................................................... 1-3
1.1.5 Checking Device Events ........................................................................... 1-4
1.1.6 Checking the Status of Indicators .............................................................. 1-5
1.2 Monthly Maintenance ......................................................................................... 1-5
1.2.1 Checking Power Supply............................................................................ 1-5
1.2.2 Cleaning the Equipment............................................................................ 1-5
1.2.3 Maintaining the Equipment Room Environment .......................................... 1-6
1.3 Quarterly Maintenance ....................................................................................... 1-7
1.3.1 Checking the Receive Level...................................................................... 1-7
1.3.2 Checking the ODU Installation .................................................................. 1-8
1.3.3 Checking the Combiner Installation ........................................................... 1-9
1.3.4 Checking the Antenna Installation ............................................................. 1-9
1.3.5 Checking the IF Cable ............................................................................ 1-10
Chapter 2 Troubleshooting........................................................................ 2-1
2.1 Application Faults............................................................................................... 2-2
2.1.1 A PC Connected to the LMT Interface Cannot Ping Equipment ................... 2-2
2.1.2 A PC Connected to the NMS Interface Cannot Ping the Equipment ............. 2-2
2.2 Radio Link Faults ............................................................................................... 2-3
2.2.1 The Receive Level Does Not Reach the Theoretical Value .......................... 2-3
2.2.2 Error Codes Are Generated on the Radio Link ........................................... 2-4
2.2.3 Radio Link Is Disconnected....................................................................... 2-4
2.2.4 Instantaneous Link Break.......................................................................... 2-5
2.2.5 The MU Loses Lock ................................................................................. 2-5
2.2.6 Air Interface Performance Is Zero .............................................................. 2-5
2.3 TDM Service Faults ............................................................................................ 2-6
2.4 Ethernet Service Faults ...................................................................................... 2-6
2.5 Network Management......................................................................................... 2-7
SJ-20150804150350-006|2015-09-17 (R1.0)
I
ZTE Proprietary and Confidential