AT&T DS1/DMi/ISDN-PRI ユーザーズマニュアル
SAMPLE INSTALLATION AND MAINTENANCE PROBLEMS
B-15
TABLE B-2. System 75 Versus System 85 Cable Comparisons
CABLE/CONNECTORS
(INITIAL OR OLD)
(PDS COMPATIBLE)
(NOTE 1)
SYSTEM 85
(NOTE 2)
SYSTEM 85
( N O T E 2 )
SYSTEM 75
INTRACABINET
GR 335-337
GR 367-369 (NOTE 3)
N/A
50- TO 15-PIN
GR 117
GR 180 OR GR 380
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
C6C
50 TO WIRE-LUGS
GR 357
GR 370 OR GR 380
C6D
50- TO 50-PIN
GR 135
GR 181 OR GR 380
C 6 F ( N O T E 4 )
NOTES:
1.
2.
3.
4.
These are special purpose shielded cables. Cable specifications for 50- to 80-pin cables do not currently exist.
All System 85 DS1/DMI cables are from ED-1E433; specify required length. Certain restrictions apply
regarding use of (or connecting) the old cable groups with the new cable groups. These restrictions apply
The groups 367, 368, and 369 carrier backplane to cabinet I/O field cables will not change when the group 380
cable is used. The group 380 25-pair Amphenol connector, which mates to the port cabinet, contains jumpers
from pins 1 to 22, 4 to 23, 5 to 48, and 26 to 47. Therefore, transmit and receive leads for both CR 335-337
and GR 367-369 are tied together and the GR 380 cable will work regardless of the interconnect cable used.
System 75 has a 50-to 50-pin extension cable (C6E) which is available in 100-foot lengths.