Chapter 4
Verifying the i3822V and iPSU Installations
33
Connecting the backup battery
CAUTION:
Follow the manufacturer’s safety statements when handling the lead-acid
battery.
Note:
The battery must be approved for use in the iPSU.
Unless you receive an advisement from the battery manufacturer (they are liable for
warranty service), do not install batteries measuring less than 12.75V, which
represents a charge of approximately of 80% of the rated capacity. Measure the open
circuit battery voltage to make sure that it has not significantly discharged before
installation.
To connect the backup battery:
1. Verify that the AC power plug is plugged into a working electrical outlet.
2. Use a Phillips screwdriver to unfasten the two screws (one on each side) securing
the power supply unit cover and put them in a safe place until they are needed.
3. Insert the battery gently into the iPSU.
Note:
Make sure to place the battery inside the raised lip of the unit.
4. Connect the backup battery connector from the iPSU to the connector on the
battery.
5. Observe the BATTERY indicator on the iPSU; it should light green.
POWER
SILENCE ALARM
BATTERY
CAUTION
POTENTIAL SHOCK