Huawei Airbridge CBTS3612-800 Manual de usuario

User Manual

Airbridge cBTS3612-800 12-carrier CDMA Base Station Table of Co

ntents

03Q-0112-20020720-120 i

Table of Contents

1Overview ......................................................................................................................................1-1

1.1 Purposes of cBTS3612-800 Routine Maintenance............................................................1-1

1.2 Classification of cBTS3612-800 Routine Maintenance Operations...................................1-1

1.2.1 Classification According to Implementing Methods.................................................1-1

1.2.2 Classification by Period Length...............................................................................1-1

1.3 Guide to the Usage of cBTS3612-800 Routine Maintenance records and cBTS3612-800

Routine Maintenance Instructions............................................................................................1-2

1.3.1 cBTS3612-800 Daily Unexpected Fault Handling Record......................................1-3

1.3.2 cBTS3612-800 Monthly Maintenance Record.........................................................1-4

1.3.3 cBTS3612-800 Quarterly Maintenance Record ......................................................1-5

1.3.4 cBTS3612-800 Yearly Maintenance Record...........................................................1-6

2cBTS3612-800 Monthly Maintenance Instructions..................................................................2-1

3Quarterly Maintenance Instructions .........................................................................................3-1

4cBTS3612-800 Yearly Maintenance Instructions.....................................................................4-1

5Return Loss, VSWR and Reflection Coefficient ......................................................................5-1

User Manual

Airbridge cBTS3612-800 12-carrier CDMA Base Station 1

Overview

03Q-0112-20020720-120 1-1

1 Overview

cBTS3612-800 Routine Maintenance Instructions describes in details the contents

and methods of cBTS3612-800 routine maintenance operations. It serves as a

reference in determining the routine maintenance schedule of a particular site.

cBTS3612-800 Routine Maintenance consists of:

1) Purpose of cBTS3612-800 routine maintenance;

2) Classification of cBTS3612-800 routine maintenance operations;

3) Logging of routine maintenance operations.

1.1 Purposes of cBTS3612-800 Routine Maintenance

Normal system operation of cBTS3612-800 in different running environment depends

on effective routine maintenance. cBTS3612-800 routine maintenance is intended to

detect and solve problems in due time to prevent trouble.

1.2 Classification of cBTS3612-800 Routine Maintenance

Operations

1.2.1 Classification According to Implementing Methods

I. Conventional maintenance

To observe the operation of the system, and test and analyze equipment performance

during system operation.

II. Unconventional maintenance

To test if the performance of system equipment has degraded by artificially creating

some faults and observe system performance with these faults. For example,

maintenance personnel may artificially create some faults and test if the alarm system

reports alarm correctly.

1.2.2 Classification by Period Length

I. Unscheduled maintenance

Maintenance operations incurred by equipment fault or network adjustment. For

example, maintenance tasks triggered by user complaint, damage of equipment and

User Manual

Airbridge cBTS3612-800 12-carrier CDMA Base Station 1

Overview

03Q-0112-20020720-120 1-2

line fault. Solving of problems left over by daily maintenance operations is also

regarded as unscheduled maintenance operation.

II. Daily maintenance

Maintenance tasks conducted daily. cBTS3612-800 Daily maintenance helps

maintenance personnel keep track of the operating conditions of the equipment at

any moment so that problems can be solved in time. When a problem is detected in

daily maintenance, record it in detail to help eliminate it in time.

III. Periodical maintenance

Maintenance tasks conducted regularly. Periodical maintenance helps maintenance

personnel keep track of the long-term performance of the equipment.

Periodical maintenance includes: monthly maintenance, quarterly maintenance and

yearly maintenance.

1.3 Guide to the Usage of cBTS3612-800 Routine

Maintenance records and cBTS3612-800 Routine

Maintenance Instructions

1) Note down in details the unexpected faults occurred in cBTS3612-800 daily

maintenance operations in cBTS3612-800 Daily Unexpected Fault Handling

Record for future reference. The user may modify the record according to the

actual needs, or compile the records into manuals.

2) Note down in details the actual maintenance operations carried out during

cBTS3612-800 monthly maintenance in cBTS3612-800 Monthly Maintenance

Record. For details, see cBTS 3612 Monthly Maintenance Operation Instruction.

3) Note down in details the actual maintenance operations carried out during

cBTS3612-800 quarterly maintenance in cBTS Quarterly Maintenance Record.

For details, see cBTS 3612 Quarterly Maintenance Operation Instruction.

4) Note down in details the actual maintenance operations carried out during

cBTS3612-800 yearly maintenance in cBTS3612-800 Yearly Maintenance

Record. For details, see cBTS 3612 Yearly Maintenance Operation Instruction.

User Manual

Airbridge cBTS3612-800 12-carrier CDMA Base Station 1

Overview

03Q-0112-20020720-120 1-3

1.3.1 cBTS3612-800 Daily Unexpected Fault Handling Record

Site Belong-to BSC

Time when fault

occurred: Time when fault is

solved:

Person on duty: Handled by:

Classification of fault:

Primary power supply

Secondary power supply

Base Band Subrack

RF Subrack

CDU/DFU/RLDU Subrack

Antenna & Feeder System

Others

Fault detected:

?With user complaint ?From the alarm system

?In Daily maintenance ?From other sources

Description of fault:

Alarm Handling & Result:

User Manual

Airbridge cBTS3612-800 12-carrier CDMA Base Station 1

Overview

03Q-0112-20020720-120 1-4

1.3.2 cBTS3612-800 Monthly Maintenance Record

Site: _______________

Time of

maintenance:___

_(MM)_____(DD)_____(YY)

____(MM)____(DD)____(YY) Maintainer:

Items Status Remarks Maintenance

personnel

Environment Normal, Abnormal

Temperature Normal, Abnormal

Humidity Normal, Abnormal

Dust-proof performance Normal, Abnormal

Indoor air-conditioner Normal, Abnormal

Call test Normal, Abnormal

Battery group Normal, Abnormal

Grounding, lightening protection and power

supply system Normal, Abnormal

RF antenna and feeder part Normal, Abnormal

Satellite antenna and feeder part Normal, Abnormal

Secondary power supply Normal, Abnormal

Description of fault and

handling measures taken

Problems remained

Monitor check

User Manual

Airbridge cBTS3612-800 12-carrier CDMA Base Station 1

Overview

03Q-0112-20020720-120 1-5

1.3.3 cBTS3612-800 Quarterly Maintenance Record

Site: _______________

Time of

maintenance:____(MM)_____(DD)_____(YY)

____(MM)____(DD)____(YY) Maintainer:

Items Status Remarks Maintenance personnel

Primary power supply Normal, Abnormal

Fans Normal, Abnormal

Road test Normal, Abnormal

Alarm collection equipment Normal, Abnormal When available

Description of fault and

handling measures taken

Problems remained

Monitor check

User Manual

Airbridge cBTS3612-800 12-carrier CDMA Base Station 1

Overview

03Q-0112-20020720-120 1-6

1.3.4 cBTS3612-800 Yearly Maintenance Record

Site: _______________

Time of mai

ntenance:____(MM)_____(DD)_____(YY)

____(MM)____(DD)____(YY) Maintainer:

Items Status Remarks Maintenance

personnel

Call test Normal, Abnormal

Cabinet sanitation Normal, Abnormal

BTS power output Normal, Abnormal

Grounding resistance and grounding wires Normal, Abnormal

Water-proof performance of antenna and feeder

connector and lightening protection grounding clip Normal, Abnormal

Firmness and angle of antenna Normal, Abnormal

Description of fault and handling

measures taken

Problems remained

Monitor check

User Manual

Airbridge cBTS3612-450 12-carrier CDMA Base Station 2 cBTS3612-

800 Monthly Maintenance

Instructions

03Q-0112-20020720-120 2-1

2 cBTS3612-800 Monthly Maintenance

Instructions

Items Instructions Note

Call test Make calls with an MS. Collect information at both

the MS and the BSC to see if all calls are normal

for all sector carriers.

There should be no noise, no call

dropping, nor cross talking.

Grounding, lightening protection

system (including E1 lightening

protection board) and power

supply system

1) Check the connections in the grounding system

and the lightening protection system.

2) Check if the power supply system is normal.

3) Check if any part of the lightening protector is

burnt.

Keep the lightening protector for the

power supply system and the antenna

and feeder system in good shape.

Antenna and feeder part

1) Check if there is any VSWR alarms;

2) Check if the support of the antenna is set to the

correct direction;

3) Check if the water-proof performance of the

feeder is normal.

Query at the maintenance console.

Secondary power supply Check if there is any alarm on the fault of the

secondary power supply module.

User Manual

Airbridge cBTS3612-450 12-carrier CDMA Base Station 3

Quarterly Maintenance Instructions

03Q-0112-20020720-120 3-1

3 Quarterly Maintenance Instructions

Items Instructions Note

Primary power supply Measure the output voltage. Range of normal output voltage: -40-60V.

Fans 1) Check if the fans are working normally.

2) Check if there is any alarm reported on the fault

of fans.

Alarm may be triggered when:

1) Some of the fans are unable to rotate;

2) Temperature of some of the fans is

abnormal;

3) Fan rotational speed control is faulty.

Road testTest on the handoff and coverage area of the cells

with a test MS.

VSWR Check at the maintenance console if there is any

VSWR alarms.

Alarm collection

equipment Check if the alarm collection equipment (including

that on humidity, temperature and fire) is normal.

Equipment room

environment

Check the temperature, humidity, dust-proof

performance, and anti-static performance of the

equipment room.

Temperature: -5C~50C.

Relative humidity: 5%~90%.

User Manual

Airbridge cBTS3612-450 12-carrier CDMA Base Station 4 cBTS3612-800

Yearly Maintenance

Instructions

03Q-0112-20020720-120 4-1

4 cBTS3612-800 Yearly Maintenance Instructions

Items Instructions Note

Call test Make calls with an MS. Collect information at both the

MS and the BSC to see if all calls are normal for all

sector carriers.

There should be no noise, no call

dropping, nor cross talking.

Cabinet sanitation Tools required: Vacuum cleaner, alcohol and towel.Impose strict operation regulations

to prevent mis-operation on power

supply.

BTS power output Test the output power of the RFs. Check if the output is the same as

recorded in the BSC.

Grounding resistance and

grounding wires

1). Measure the grounding resistance with proper test

instruments.

2). Check if the connector of the grounding wires are

normal

Water-proof performance of

antenna and feeder connector

and lightening protection

grounding clip

1). Check the external parts;

2). Unwrap them and check.

Wrap up the checked parts with

the same material used before the

check.

Firmness and angle of

antenna 1). Tighten the screw with the wrench.

2). Check if the angle are correctly set. Do not apply toomuch force with

the wrench.

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