Fire Alarm Computer 8000C / M
Page 81
Battery monitoring (Basic module)
The power supply unit periodically monitors the charge of the batteries connected. If this battery
test reveals a battery voltage of below 10.0 V DC under load, battery trouble will be signalled. The
battery charge is controlled by means of a temperature-dependent resistor (NTC).
If only one battery is connected,
solder jumper BR1 on the basic circuit board
may be closed in
order to deactivate monitoring of battery connection 2. Alternatively, the second, unused battery
connection cable may also be connected to the first battery in order to override the battery
monitoring facility for the absent second battery.
If a battery is connected without deactivating or overriding the monitoring of the second battery,
battery trouble will be signaled the next time an internal control panel battery test is performed.
Power supply modu
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