Revision 03
December 18, 1996
Section 363-719-100
PG-Flex FCS-719
PairGain Engineering - Plant Series
Page 11
Table 10. COT Shelf Connectors (HDSL, Test, And Miscellaneous)
System
Connector
Type
Function
System n*
HDSL_T1
HDSL_R1
0.45 mm
Wire Wrap
Tip and ring terminations for HDSL Pair #1 of System n to Remote
Terminal n. +130 Vdc is simplexed on this line for powering the
Remote Terminal.
System n
HDSL_T2
HDSL_R2
0.45 mm
Wire Wrap
Tip and ring terminations for HDSL Pair #2 of System n to Remote
Terminal n. -130 V dc is simplexed on this line for powering the
Remote Terminal.
System n
PWR_OUT_T1
PWR_OUT_R1
0.45 mm
Wire Wrap
System n Power Pair #1
(Not currently used)
System n
PWR_OUT_T2
PWR_OUT_R2
0.45 mm
Wire Wrap
System n Power Pair #2
(Not currently used)
System n
BYPASS_T
BYPASS_R
0.45 mm
Wire Wrap
Termination for the metallic bypass pair into COT System n from
RT n.
System n
TEST_IN_T
TEST_IN_R
0.45 mm
Wire Wrap
Test connection looking into the COT channel unit for the selected
subscriber for System n. This connection must be set up through the
PG-Flex RS-232 maintenance port.
System n
TEST_OUT_T
TEST_OUT_R
0.45 mm
Wire Wrap
Test connection looking into the central office equipment of the
selected subscriber for System n. This connection must be set up
through the PG-Flex RS-232 maintenance port. In some applications,
this pair will be jumpered to the BYPASS pair from RT n.
CC1_IN_T
CC1_IN_R
0.45 mm
Wire Wrap
Composite Clock #1. Used for 64 kbps DDS Composite Clock for
synchronization to central office switch. These pins may be daisy
chained to additional Composite Clock inputs in other PG-Flex
systems.
CC2_IN_T
CC2_IN_R
0.45 mm
Wire Wrap
Composite Clock #2. Used for 64 kbps DDS Composite Clock for
synchronization to central office switch. These pins may be daisy
chained to additional Composite Clock inputs in other PG-Flex
systems.
FRAME_GND
0.45 mm
Wire Wrap
Frame ground. This is isolated from central office battery ground in
PG-Flex.
EXT_ACO
CKT_GND
0.45 mm
Wire Wrap
External Alarm Cutoff. A momentary connection between EXT_ACO
and circuit ground will silence the PG-Flex audible alarms.
INHIBIT
0.45 mm
Wire Wrap
PGTC Inhibit connection. This pin should not be connected to any
other Inhibit pins in PG-Flex or other DLC systems.
GND
0.45 mm
Wire Wrap
Central office battery ground. This is isolated from frame ground in
PG-Flex.
* Where n is 1 on System 1, 2 on System 2, 3 on System 3, and 4 on System 4.