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A battery test cannot be started under the following conditions:
•
A battery test is already running
•
The temperature inside the BRU3 is not within the range 20-40 °C
•
The batteries are already discharged
•
The Node back-up time is out of range.
2.5
Function Check
2.5.1
General
In addition to the regular Check and Visual and Preventive Maintenance
program previously described, a Function Check, which is described below,
may be performed if so requested by the operator.
The Function Check includes checking BRU3 boards, transmitter, receiver,
antennas and hardware alarms.
Furthermore, the Function Check may be used as an extended hardware
commissioning test as a complement to the hardware commissioning procedure
previously described in this manual.
2.5.2
Equipment Required
To carry out the Function Check, the following equipment is required:
•
Power meter
•
Multimeter
•
Ericsson test modem LPBA 109 08 or RF signal generator 1 GHz with a
built-in GMSK-modulator
•
1 pc of Radio Communication test set, including
- RF signal generator 1GHz, with external FM DC input
- Modulation Meter.
BRU3 MANUAL
BRU3 MANUAL, Doc.no: 1543-ANNA 805 08 Uen Rev H, 2003-06-10
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