High Temperature ................................................................................................ 11
Board Plugging/Unplugging ................................................................................... 11
Do-Nots............................................................................................................... 12
Chapter 2...................................................................................... 13
Maintenance Overview............................................................................ 13
Categories of Daily Maintenance............................................................................. 14
Common Maintenance Methods ............................................................................. 14
Precautions on Daily Maintenance .......................................................................... 16
Chapter 3...................................................................................... 19
Routine Maintenance .............................................................................. 19
Daily Routine Maintenance .................................................................................... 20
Viewing Current Alarms .........................................................................................................20
Viewing Alarms in Each Module..............................................................................................22
Viewing Current Notification Information ................................................................................25
Viewing Real-time Attributes of a Carrier ................................................................................29
Creating Daily Performance Report.........................................................................................30
Creating a Daily Traffic Report................................................................................................35
Weekly Routine Maintenance ................................................................................. 39
Viewing History Alarms..........................................................................................................39
Collecting Alarm Frequency Statistics .....................................................................................44
Analyzing Performance Report ...............................................................................................48
Monthly Routine Maintenance ................................................................................ 48
Creating Monthly Performance Report ....................................................................................48
Collecting Statistics of Bad Cells .............................................................................................53
Analyzing and Processing Reports ..........................................................................................57
Generating Monthly Operation Report.....................................................................................58
Biannual Routine Maintenance ............................................................................... 58
Checking BS21 AC Power ......................................................................................................59
Checking Running Status of Heat Exchanger...........................................................................60
Checking Dust-Proof Status ...................................................................................................60
Checking Running Status of CMM Module ...............................................................................61
Checking Running Status of ETRM Module ..............................................................................64
Checking Running Status of ECDU Module..............................................................................67
Measuring Amplifier Output Power .........................................................................................69
Measuring SWR of Antenna Feeder ........................................................................................69
Calibrating Clock ...................................................................................................................71
Checking Fastness of Antennae and Towers............................................................................72
Checking Obliquity of Directional Antennae.............................................................................72
Checking whether Antenna Feeder Connectors and Lightning Protection Grounding Kit are
Waterproof............................................................................................................................74
