3Com 3C13755-US - Router 5642 Installation Manual page 97

V.35 DCE Cable
Assembly and Pinouts
Table 62 V.35 DTE Cable Pinouts
DB-50 Signal
39 TxD/RxD-
20 RxD/TxD+
44 RxD/TxD-
16 TxCE/TxC+
40 TxCE/TxC-
19 RxC/TxCE+
43 RxC/TxCE-
18 TxC/RxC+
42 TxC/RxC-
50 GND
7 GND
24 RxD-REST
49 RxC-REST
25 TxC-REST
Figure 87 illustrates the V.35 DCE cable assembly.
Figure 87 V.35 DCE Cable Assembly
DB50 Male
Enlarged A side
Table 63 describes V.35 DCE cable pinouts.
V.35 DCE cable Pinouts
Table 63
DB-50 Signal
31 CTS/RTS
2 RTS/CTS
26 DTR/DSR
1 LL/DCD
6 DSR/DTR
30 DCD/LL
20 RxD/TxD+
44 RxD/TxD-
Serial Interface Cable
Signal Direction 34PIN
—> S
<— R
<— T
—> U
—> W
<— V
<— X
<— Y
<— AA
- A
- B
GND -
GND -
GND -
V.35 Female
Label
Signal Direction 34PIN
<— C
—> D
—> E
—> F
<— H
<— K
<— P
<— S
95
Signal
SD-
RD+
RD-
SCTE+
SCTE-
SCR+
SCR-
SCT+
SCT-
Shield_GND
Circuit_GND
-
-
-
Enlarged B side
Signal
RTS
CTS
DSR
RLSD
DTR
LT
SD+
SD-