PRACTICE 553-2201-183
1. GENERAL
1.01
This practice outlines the characteristics, application and operation
of the
500/2500
line circuit packs. The information is intended to be
used as a guide when connecting customer-provided apparatus to the
line circuit.
1.02 The following
500/2500
line packs are availadle:
. QPC192
-
Off-Premise Extension
(OPX)
Line pack
(+a~)
l QPC292
-
Off-Premise Extension
(OPX)
Line pack (A-Law)
l
QPC452
-
Basic
500/2500
Line pack for
~-Law
applications
l
QPC494
.-
Message Waiting Line pack (~-Law)
l QPC521
-
Basic
500/2500
Line pack for A-Law applications
l QPC532
-
Ground Button Recall Line pack (A-Law and
~-Law)
l
QPC558
-
Message Waiting Line pack (A-Law)
l QPC594
-
16-Port
Basic
500/2500
Line pack
(+a~)
l QPC681
-
Parallel Message Waiting Line pack
(~-Law)
l
QPC682
-
Parallel Message Waiting Line pack (A-Law).
l QPC729
-
16-Port Basic
500/2500
Line pack (A-Law)
l QPC789
-
16-Port
Message Waiting
500/2500
Line pack
(+a~)-
+
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