Nortel Networks 553-3001-211 manual RDA2 BR-R, DTR2, GND2 SDB2, Bk-O

NT7D16 Data Access card Page 503 of 894

Table 165

RS-232-C and RS-422 pinouts for first three DAC ports (Part 2 of 2)

	I/O cable			RS-232-C
		Pair				RS-422	Patch pair or
Pair	Pin	color	Unit no.	Signal	Pin no.	Signal	octopus
7R	7	O-R		DSR1	6
8T	33	R-G		RI1	22
8R	8	G-R		CTS1	5
9T	34	R-BR	UNIT 2	TD2	2	RDA2
9R	9	BR-R		RD2	3	RDB2
10T	35	R-S		DTR2	20	SDA2
10R	10	S-R		GND2	7	SDB2	Connector
11T	36	BK-BL		DCD2	8		3
11R	11	BL-BK		DSR2	6
12T	37	BK-O		RI2	22
12R	12	O-BK		CTS2	5

Note 1: The RS-232 pinout follows the standard set by the QPC723 RILC.

Note 2: The RS-422 pinout follows the standard set by the QPC430 AILC (first pair: Receive

Data; second pair: Send Data). Receive and Send are designated with reference to the DTE; therefore, they must be turned over in the cross-connect since most DTE have first pair as Send Data and second pair as Receive Data.

Circuit Card Description and Installation