Andrew Type 960 Class I & II Manual de usuario descargar pdf (Pagina 17)

VSWR Test:- See Fig. 3-1 for RF cable W/G.

There are two types of VSWR meters.

1. Site Master Anritsu or Bird (with power measurement)

2. Bird Antenna Tester (without power measurement)

- Remove jumper cable from bay top.

In both type of Meters - Select start and stop frequencies, 880 MHz and 970 MHz

- Mark amplitude as 1.0 lower and upper as 1.3,

- Calibrate with open, short and load connector,

- Connect jumper cable to meter and see trace on display,

- Note down VSWR maximum reading at the peak of trace.

Forward and Reverse power:-

1. Measure Trans power at Bay top ,

2. Reverse the knob, measured power should go off , i.e. reading

is zero.

Redundancy Test: - As such there is no redundancy modules provided this test can

not be carried out.

Alarm Test: - Check whether all alarms are locally terminated or not?

The various main alarms are:-

1. Rectifier fails

2. DG fails to start

3. Low Voltage by BTS

4. High Temperature

5. Mains power failure

6. Door open

7. Air condition

All these alarms can be created and monitored on Laptop and at OMC-R:-

Operation and maintenance centre which is installed in MSC. It performance the function

of – Configuration management i.e. Creating, modifying and deleting BSS objects. -

- Fault management: - Alarm monitoring and event reporting.

- Performance management: - Collection, store and analyze measurements

Alarm severity and colors: - Alarm status:-

Red – Critical, Open – Alarm still exists

Yellow – Major Acknowledged – Alarm is noted

Cyan – Minor Cleared - Alarm attended

White – Warning Stale - Alarm was there but

Object deleted,

so no alarm exists.

- Carry out end commissioning when all tests are over.

- Inform OMC-R to unlock the site.

- Before leaving the site check signal on mobile handset to confirm restoration.

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Andrew Type 960 Class I & II Manual de usuario Pagina 17