IBM SY44-5902-05 manual 24/X.21bis communications adapter cable

Table 55. V.24 communications adapter remote power-on cable (continued)

Signal designation

Adapter connector pin

Interchange circuit number number

DCE connector pin number

Notes:

1Cable ID 1, 2, 4 is connected to common return pin 7 only at the DTE connector end and is not connected at the DCE end.

2

3

The V.24 cable wrap connector is used with this cable. See V.24 cable information for wiring diagram.

The Select Standby signal (circuit 116) is not used on all V.24 Communication Adapter Remote Power-On cables.

4Adapter Connector Number E1 is needed only with Stage 1 hardware.

V.24/X.21bis communications adapter cable

Table 56. V.24/X.21bis communications adapter cable

	Interchange Circuit	Adapter Connector Pin	DCE Connector Pin
Signal Designation	Number	Number	Number
Transmitted data	103	2	2
Received data	104	3	3
Request to send (RTS)	105	4	4
Ready for sending (CTS)	106	5	5
Data set ready (DSR)	107	6	6
Data terminal	108/2	20	20
ready/connect data set to
line
Received line signal	109	8	8
(carrier) detector
Data signal rate selector	111	23	23
Transmitter signal element	113	24	24
timing (DTE)
Transmitter signal element	114	15	15
timing (DCE)
Receiver signal element	115	17	17
timing (DCE)
Select standby2	116	11	11
Calling indicator	125	22	22
Remote loopback	140	21	21
Local loopback	141	18	18
Test indicator	142	25	25
Cable ID 0, common return	102	(7, 13)	7
Notes:

1	Cable ID 0 is connected to common return pin 7 only at the DTE connector end and is not connected at the
	DCE end.
2	The Select Standby signal (circuit 116) is not used on all V.24 Communication Adapter cable assemblies.

252Service Functions V5R2