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14-1
14 Power-on/Power-off
Summary
This part describes:
The check before BTS is powered on;
The power-on procedures of BTS;
The power-off procedures of BTS.
14.1 Check before Power-on
14.1.1 Check of External Connections of the rack
1. Check the power supply cables: check carefully to see whether the power cables
of DC connecting terminals on the set top are correctly connected. Make sure
that the poles are properly connected and screws are tightened.
2. Measure with a multimeter to see whether the voltage input on the DC power
distribution rack is within the allowable range (-40V~-57V). If not, check the
power system in the base station.
3. Make sure that T1 cables are correctly connected without insecure connections.
4. Check the antenna feeder system. Check with a standing wave ratio tester to see
whether the standing wave ratio of the antenna feeder is less than 1.5 (generally
less than 1.3). Feeder connectors should be well assembled and no feeder or
antenna is faulty.
5. Check whether cable labels are attached firmly, correctly and beautifully.
14.1.2 Check of Rack Inside
1. Open the front door of the rack to check whether the RF cables in the rack front
are correctly and firmly connected. Check whether connectors are connected
correctly and firmly according to the cable labels.
