AT&T DS1/DMi/ISDN-PRI Installation Maintenance Problems, System Intracabinet, C6C To WIRE-LUGS

		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	.	SYSTEM 75
						2 ) .
						.
						.
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.These are special purpose shielded cables. Cable specifications for 50- to 80-pin cables do not currently exist.

2.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 because old cable groups use different cable pairs than the new cable groups. (Refer to table B-1.)

3.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.

4.System 75 has a 50-to 50-pin extension cable (C6E) which is available in 100-foot lengths.