Ibm Realtime Interface Co-Processor Rs-232-C Electrical Interface Signal Pins - IBM System/36 Maintenance Information Manual

986 IBM Realtime Interface Co-Processor RS-232-C Electrical
Interface Signal Pins
Signal Name
Transmit data (TDS)
Receive data (RDS)
Request to send (RTS)
Clear to send (CTS)
Data carrier detect (DCD)
Rate select (Select)
Ring indicator (RI)
Data set ready (DSR)
Data terminal ready (DTR)
Protective ground (FG)
DTE clock
Signal ground (GND)
Transmit clock (TX)
Receive clock (RX)
Not connected
System End
8 7 6 5 4 3 2 1
••••••••
0 • • • • • •
151413121110 9
R36B143-1
Cable End
1 2 3 4 5 6 7 8 9 10111213
• • • • • • • • 00000
0.0.00.0 • • • 0
141516171819202122232425
R36B144-0
Signal Pins
System End Cable End Signals Wrapped
2 2
>--,
4 3
<.--J
3 4
>--,
5 5
<-1
7
8
<.--J
9
23 >--,
11
22
<.--J
10
6
<--,
12
20
>.--J
1 1
6
24
8 7
13
15
14 17
15
N.C.
Section 9, Communications Procedures
9-13