iPECS eMG80 Installation Manual page 74

iPECS eMG80
Hardware Description and Installation Manual
To wire the Battery Back-up,
1. Using the Battery Back-up cable provided, connect the Red wire to the positive
terminal of one of the batteries.
2. Connect the Blue wire of the connector to the negative terminal of the second
battery.
3. Connect the non-terminated negative and positive battery terminal s together with a
fuse (10 A @ 250 Volts). This series connection will provide the 24 VDC required by
the eMG80 Battery Backup circuit.
4. Insert the Battery Backup connector in to the KSU 'BATT' connector.
5. Repeat Steps 1 to 4 for the EKSU.
NOTE
Battery operation is controlled by the PSU. The PSU will provide charging current to the
batteries during normal AC power operation at a maximum of 200mA. PSU battery
operation will be halted if the AC power is re-connected or if the battery voltage is too low
to maintain full-system operation.
The external batteries can maintain System operation as needed for several hours
depending on several factors such as battery charge status, condition and capacity of the
batteries, and System configuration (active Station ports).
CAUTION

It is recommended to use an external backup battery fuse (10A@250V) between the
battery and the System.

Recommended battery capacity is 24V/20AH MF; the iPECS eMG80 System should
be able to operate more than 3 hours with batteries that are in good condition.

Carefully check the battery polarity with cable colors (Red and Blue) when
connecting the battery to the System.

Do not short out the external batteries and cables.

Dispose of used batteries according to the manufacturer's instructions.
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