Eia 232 advanced wrap connector wiring – IBM VERSION 5 SY44-5902-05 User Manual
Page 268
Table 59. EIA 232 advanced PCI communications cable (continued)
Signal designation
Adapter connector pin
number
DCE connector pin number
Transmitter Clock (TCLK)
29
15
Reciver Clock (RCLK)
26
17
Data terminal ready (DTR)
4
20
Ring Indicate (RI)
31
22
EIA 232 advanced wrap connector wiring
Table 60. EIA 232 advanced wrap connector wiring
Signal destination
Wrap connector pin to pin
TD to RD, RI
2 to 3,22
RD to TD
3 to 2
RTS to CTS, TCLK
4 to 5,15
CTS to RTS
5 to 4
DSR to DTR
6 to 20
CD to DTR
8 to 20
TCLK to RTS
15 to 4
RCLK to DTR
17 to 20
DTR to CD, DSR, RCLK
20 to 17,8,6
RI to TD
22 to 2
Stage 1 EIA-232/X.21bis communications adapter cable
Table 61. EIA-232/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
108/2 108/1
24
20
Received line signal (carrier) detector 109
8
8
Data signal rate selector
111
43
23
Transmitter signal element timing
(DTE)
113
11
24
Transmitter signal element timing
(DCE)
114
19
15
Receiver signal element timing
(DCE)
115
21
17
Select standby
2
116
29
11
254
Service Functions V5R2