Serial Interface Cable 61
X.21 DTE Cable Pinouts Table 9 describes X.21 DTE cable pinouts.
X.21 DCE Cable Pinouts Table 10 describes X.21 DCE cable pinouts.
17 NIL/RxC+ —> V SCR+
41 NIL/RxC- —> X SCR-
16 TxCE/TxC+ —> Y SCT+
40 TxCE/TxC- —> AA SCT-
50 GND - A Shield_GND
7 GND - B Circuit_GND
24 RxD-REST GND - -
49 RxC-REST GND - -
25 TxC-REST GND - -
Table 8 V.35 DCE cable Pinouts (continued)
DB-50 Signal
Signal
Direction
34PIN Signal
Table 9 X.21 DTE Cable Pinouts
DB50 Signal Signal Direction Signal DB15
7 GND <--> Circuit GND 8
23 DTE/DCE - Circuit GND 8
50 GND <--> Shield GND 1
10 RTS/CTS+ -> Control+ 3
34 RTS/CTS- -> Control- 10
38 CTS/RTS+ <- Indication+ 5
14 CTS/RTS- <- Indication- 12
20 RXD/TXD+ <- Receiver+ 4
44 RXD/TXD- <- Receiver- 11
15 TXD/RXD+ -> Transmit+ 2
39 TXD/RXD- -> Transmit- 9
19 RXC/TXCE+ <- Timing+ 6
43 RXC/TXCE- <- Timing- 13
- Shielding sheath <--> Shielding sheath -
Tab le 10 X.21 DCE Cable Pinouts
DB50 Signal Signal Direction Signal DB15
7 GND <--> Circuit GND 8
50 GND <--> Shield GND 1
10 RTS/CTS+ -> Indication+ 5
34 RTS/CTS- -> Indication- 12
38 CTS/RTS+ <- Control+ 3
14 CTS/RTS- <- Control- 10
20 RXD/TXD+ <- Transmit+ 2
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