V.24/x.21bis communications adapter cable – IBM VERSION 5 SY44-5902-05 User Manual
Page 266
Table 55. V.24 communications adapter remote power-on cable (continued)
Signal designation
Interchange circuit number
Adapter connector pin
number
DCE connector pin
number
Notes:
1
Cable 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
The V.24 cable wrap connector is used with this cable. See V.24 cable information for wiring diagram.
3
The Select Standby signal (circuit 116) is not used on all V.24 Communication Adapter Remote Power-On
cables.
4
Adapter 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
Signal Designation
Interchange Circuit
Number
Adapter Connector Pin
Number
DCE Connector Pin
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
ready/connect data set to
line
108/2
20
20
Received line signal
(carrier) detector
109
8
8
Data signal rate selector
111
23
23
Transmitter signal element
timing (DTE)
113
24
24
Transmitter signal element
timing (DCE)
114
15
15
Receiver signal element
timing (DCE)
115
17
17
Select standby
2
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.
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Service Functions V5R2