Power Failure - Panasonic DBS Series Overview

Panasonic Digital Business System - Overview
April 1997
Call Path Delay
The maximum call path delay for each speech link is shown below. The times are in micro-
seconds.
Call Path
PAS > ITS
PAS > 1AS

Power Failure

If installed the batteries inside the CCU will back up the operation of the DBS for a short
time. The precise time will depend upon system size and the volume of call traffic.
Alternatively an external battery may be added to increase the running time in the event of a
power failure.
In addition a number of power fail telephone units (PFUs) can be connected. The CCU will
divert the first few lines to these units if the power and battery backup fails. The number of
PFUs varies according to the CCU used.
Max. Delay Call Path
1000 ITS > PAS
875 1AS > PAS
Table 8 - Call Path Delay
7
Max. Delay
1000
875
Issue 6