Section 363-753-102
Revision 01
Page 2
A. PRODUCT OVERVIEW
1. DESCRIPTION AND FEATURES
1.01
The PG-Flex FRC-753 Channel Unit provides 8
POTS interfaces between a PG-Flex Remote
Terminal (RT) and subscribers. The FRC-753 Channel Unit
uses
µ
-Law PCM encoding. The unit includes status LEDs
for each line indicating idle, ringing, and off-hook
conditions, as well as an LED indicating a fault condition on
the Channel Unit. The unit provides metallic test access to
the subscriber line for connecting through an optional
metallic bypass pair.
1.02
Revision History of this practice.
Revision 02—December 18, 1996
a) Added List 2.
1.03
Features of the PG-Flex FRC-753 RT Channel
Unit:
•
Eight POTS subscriber interfaces
•
64 kbps
µ
-Law PCM encoding
•
Front panel ACTIVE LEDs indicate idle, ringing,
test access, and off-hook for each channel
•
Front panel FAULT LED indicator simplifies
troubleshooting
•
Pair Gain Test Controller (PGTC) Compatibility,
List 2 only
2. APPLICATIONS
2.01
Subscriber Drop Testing. For subscriber drop
testing from the central office, PG-Flex is able to
select and connect any subscriber drop to a metallic test pair
at the RT. PG-Flex extends this connection back to the COT
where it can be switched onto the test access bus, or to the
corresponding subscriber line on the COT channel card.
2.02
Test access may be achieved by p116V on
the subscriber’s COT tip lead for 1.5 seconds, then
removing the +116V. Depending on the configuration of the
PG-Flex system, the selected subscriber drop (assuming a
working metallic bypass pair) will be connected to either the
corresponding COT subscriber line or to the test access bus.
2.03
The test connection will be dropped when -116V is
applied to the subscriber’s COT tip for 1.5 seconds,
then removing the -116V.
2.04
Test access may also be activated through the
RS-232 Maintenance Port located on the front of the
COT Line Unit, using an ASCII terminal.
