User guide

POWER-FAIL EMERGENCY CALLS
Please note that under Power-Fail (no 240V mains supply) conditions, the system is completely
non-operational. Power-Fail conditions result in the system being incapable of receiving or
making any calls. However, if you require full or partial system operation during Power-Fail
conditions, there are three options available.
1. An emergency Power-Fail backup battery can be installed (at initial
installation or at a later date). The Aristel battery backup set will allow the
telephone system to operate with full capability and functions for
approximately 4~8 hours. This time will vary depending on the system
capacity, features installed and the amount of calls on the system during
the Power-Fail period. The Aristel backup battery is constantly charged by
the telephone system and (assuming that your battery is fully charged)
there will be no service interruption during the change over from Mains
supply to backup battery supply.
2. Power-Fail phones can be connected/installed to the system. In the event of
a 240V power failure, these phones can be used to receive and make calls.
In general, only certain lines will be available for answering incoming and
making out going calls during the power-fail period. Depending which
system you have and how many/which “power-fail phones” are connected,
you may have one or several operating phones on selected lines during
Power-Fail.
3. An “Uninterruptible Power Supply” (UPS) can be fitted to the system. This
is a power source that is fed by the 240V mains and in turn feeds
manufactured 240V power to the telephone system. It also stores power in
a battery for use during Power-Fail periods. The battery is then used to
supply the telephone system with 240V manufactured by the UPS itself.
This will give full operation for a limited time only. A UPS can be also
used to power computers, alarms, etc. during power-fail periods. The
period of time that a UPS will operate for is dependant on the number of
devices being fed with power. A UPS can supply power for periods from
five minutes to several hours.
See your Aristel dealer for further details on these options, or contact
Aristel Networks on 03 8542 2300 during business hours.
System Administrator’s Manual Issued December 2004 Page 31