Comdial DIGITECH, Системное руководство

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66-083
POWER FAILURE STATION
CONNECTIONS
The system provides a tip and ring pair connected to
line 1 as an emergency power failure circuit. This
circuit is active during a commercial AC power failure
if an external battery assembly is not installed to
provide battery back-up power to the system.
An
industry standard, single-line telephone, such as a
Comdial model can be connected to a power
failure pair and used to provide communications
capability until the AC power to the system is restored.
The power failure pair is located as follows and as
detailed in
Figure 3-7
below.
POWER FAILURE TERMINALS ON
STATION CONNECTOR BLOCK
8 - S T A T I O N A N D 8 - L I N E , B A S E
TYPICAL INDUSTRY STANDARD
NON-ELECTRIC TELEPHONE
FAILURE INTERFACE)
2 5
2 6
I
4 6 - - l - -
4 7 - - l - -
4 6 - - l - -
- - l - -
5 0 - - l - -
CLIP TERMINALS
POWER FAILURE JACK
BASE
l
, - - - - - - - - - e - - - - B - - - d ’
Figure 3-7. Power Faliure Connection