Revision
04
February 19, 1998
363-765-104-04
18
PairGain
Engineering - Plant Series
FRE-765
List
4x
HDSL Pairs.
To connect the HDSL pairs, follow the instructions for the appropriate FRE-765 enclosure.
For List 4, 4A, 4B, and 4F FRE-765 enclosures do the following (see
1
Route the HDSL pairs through the strain relief on the bottom of the enclosure.
2
Terminate HDSL Pair #1 on the Quiet-Front terminals HDSL_1_T (Tip) and HDSL_1_R (Ring).
3
Terminate HDSL Pair #2 on the Quiet-Front terminals HDSL_2_T (Tip) and HDSL_2_R (Ring).
4
Secure with a cable tie to the bracket near the cable entrance.
Figure 12.
Installing HDSL Lines (List 4, 4A, 4B, and 4F)
For List 4D and 4E FRE-765 enclosures, splice the HDSL pairs to the cable stub per
Table 12.
HDSL, Metallic Bypass, and Auxiliary Power Line Unit Termination
Backplane
Connector
6 Pair Cable
Stub (Lists 4D,
4E)
Type
Function
HDSL_1_T
HDSL_1_R
WH
BL
AMP Quiet Front or
RayChem terminals
Tip and Ring terminations for HDSL Pair #1 from the COT.
-130 Vdc is simplexed on this line for powering the RT.
HDSL_2_T
HDSL_2_R
WH
OR
AMP Quiet Front or
RayChem terminals
Tip and Ring terminations for HDSL Pair #2 from the COT.
+130 Vdc is simplexed on this line for powering the RT.
BYPASS_T
BYPASS_R
WH
GN
AMP Quiet Front or
RayChem terminals
Tip and Ring terminations for the metallic bypass pair to the
COT. (Do not connect metallic bypass pairs between PG-Flex
systems or between other DLC systems.)
PWR_1_T
PWR_1_R
WH
BN
AMP Quiet Front or
RayChem terminals
Termination for auxiliary power pairs when using a PG-Flex
doubler unit. Note that these connectors must be ordered
separately: Amp Quiet Front (p/n 150-1399-25).
PWR_2_T
PWR_2_R
WH
SL
AMP Quiet Front or
RayChem terminals
Termination for auxiliary power pairs when using a PG-Flex
doubler unit. Note that these connectors must be ordered
separately: Amp Quiet Front (p/n 150-1399-25).
(Spare)
RD
BL
—
No connection—reserved for future use.