Chapter 11 Power-on and Power-off
4.
Turn on -48 V power switch on rear subrack in different shelves. The power supply for
each shelf is located the right upper position at the back of shelf.
5.
Use a multimeter to measure whether the –48 V power output from the DC distribution
cabinet satisfies the voltage fluctuation range: -57V ~ -40V.
– End of Steps –
11.3.2 Airflow Direction Detection
Steps
1.
If the subrack below fan subrack is not blank, unplug the board in the subrack.
2.
The equipment powers on and the fan in power subrack starts properly at the top of
cabinet.
3.
Insert a slim scrip with the length of 20cm into the subrack below the power supply
subrack. If the scrip is not afloat (indicating the fan stops) or the scrip is blown
downwards (indicating wrong airflow direction), the user shall check internal power
cables and fans.
4.
If the scrip is blown upwards, it indicates airflow direction is from rack bottom to its top,
the fan is properly operated, and airflow direction is correct.
– End of Steps –
11.3.3 Powering on Board for the First Time
Steps
1.
Insert the boards into the correct slots.
2.
The board status indicators on the panel should be ON. Otherwise, unplug the boards
and check whether the power supply of this slot is normal.
– End of Steps –
11.3.4 Powering on Board at Usual Time
Steps
1.
To power on boards at usual time, initialize the board software and hardware
automatically. Wait for completion of board initialization.
2.
The indicators on the panel can tell whether the board is normal or not.
For information on board indicators, refer to board description in
ZXG10 iBSC Base
Station Controller Hardware Description
.
– End of Steps –
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SJ-20110531095035-004|2011-10-28 (R2.0)
ZTE Proprietary and Confidential
Summary of Contents for ZXG10 iBSC
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