Power Failure Options; To Provide Battery Backup; Battery Alarm; To Make Outgoing Calls Following A Power Failure - BT Versatility Manual

Power failure options

To provide battery backup

Your BT Versatility can be equipped with an optional Battery Backup Unit (BBU).
When equipped the BT Versatility can provide continued operation for at least 40 minutes in
the event of a power failure. If your system is equipped with ISDN access, it is recommended that
this BBU be installed as calls can be received and made on the ISDN lines if power fails.

Battery Alarm

If your system is equipped with a Battery a message ' Battery ' is displayed on Extension 20 if the
system is running on the Battery. If you are not aware that the normal power has failed check the
switch is plugged in.

To make outgoing calls following a power failure

In the event of a mains power failure, (with the system not equipped with a BBU), Analogue
exchange lines are switched automatically to particular extensions and calls can be made and
received on these lines until the power is restored. The Featurephones will not work when power
has failed, so these extensions must be connected to standard telephones in order for calls to be
made.
• Line 1 is switched to Extension 26
• Line 2 is switched to Extension 27
• Line 5 is switched to Extension 34
• Line 6 is switched to Extension 35
• Line 9 is switched to Extension 42
• Line 10 is switched to Extension 43
• Line 13 is switched to Extension 50
• Line 14 is switched to Extension 51
Note: ISDN lines are not switched. A Battery Backup Unit must be provided if ISDN service is
required during a power failure.

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
Owner's Manual
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