Connecting the Battery
Ensure the battery switch on the BBU unit is turned off.
• This switch does not turn off the mains supply. The mains is
disconnected by unplugging the mains cord.
• Insert the battery into the battery cavity in the CCU.
• Connect the cables from the battery charger to the battery ensuring that the cables
are connected correctly. Red cable to Red battery terminal, black cable to Black
battery terminal.
• Turn the battery charger switch on.
• Reconnect the mains.
Led Indicators
A status LED on the BBU is provided.
• GREEN indicates the unit is running from mains power and the battery is charging or
fully charged.
• ORANGE indicates the unit is running off the Battery.
• RED indicates that the battery is discharged.
• Flashing RED indicates the battery is disconnected and the switch is running from
the mains.
BT Versatility
Installation and Maintenance Manual
Analogue line module
23
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