Nortel Networks 114200-E Figure D-5. Cable 7224 X.21 Compliant, Table D-9 Interface Order No

Requirements for European Operation

15 Feet

Pin 1	Pin 15
Pin 16	Pin 30
Pin 31	Pin 44
	44-position D-Sub plug with screw locks
	(ground shield connected to backshell)

Figure D-5. Cable 7224 (X.21 Compliant)

Pin 1 Pin 8

Pin 9 Pin 15

15-position D-Sub plug with locking posts (ground shield connected to backshell)

CAB0068A

Table D-9.		X.21 Interface (Order No. 7224)
Nortel Networks Termination				Remote Termination
Pin	Signal			Pin	Signal
2	Send Data+			2	TD A
16	Send Data-			9	TD B
4	Request to Send+			3	Control A
18	Request to Send-			10	Control B
3	Receive Data+			4	RD A
17	Receive Data-			11	RD B
9	Data Carrier Detect+			5	Indication A
23	Data Carrier Detect-			12	Indication B
10	Send Timing+			6	Timing A
24	Send Timing-			13	Timing B
7	Signal Ground			8	Signal Ground
1	Frame Ground			1	Frame Ground
			Local Wire Connections
Pin 41 > 43
Pin 28 > 30
Pin 14 > 15

114200-E Rev 00 D-9