Serial Interface Cable - 3Com Router 3016 Installation Manual

Serial Interface Cable

V.24 (EIA/TIA-232) DTE
Cable Pinouts
V.24 (EIA/TIA-232) DCE
Cable Pinouts
Table 5 describes V.24 (EIA/TIA-232) DTE cable pinouts.
Table 5 V.24 (EIA/TIA-232) DTE Cable Pinout
DB-50 Signal
5 TxD/RxD
27 RxD/TxD
2 RTS/CTS
31 CTS/RTS
6 DSR/DTR
30 DCD/LL
3 TxC/NIL
28 RxC/TxCE
1 LL/DCD
26 DTR/DSR
4 TxCE/TxC
50 GND
7 GND
Table 6 describes V.24 (EIA/TIA-232) DCE cable pinouts.
Table 6 V.24 (EIA/TIA-232) DCE Cable Pinouts
DB-50 Signal
5 TxD/RxD
27 RxD/TxD
2 RTS/CTS
31 CTS/RTS
26 DTR/DSR
1 LL/DCD
4 TxCE/TxC
29 NIL/RxC
30 DCD/LL
6 DSR/DTR
28 RxC/TxCE
50 GND
7 GND
Serial Interface Cable
Signal Direction DB-25
—> 2
<— 3
—> 4
<— 5
<— 6
<— 8
<— 15
<— 17
—> 18
—> 20
—> 24
- 1
- 7
Signal Direction DB-25
—> 3
<— 2
—> 5
<— 4
—> 6
—> 8
—> 15
—> 17
<— 18
<— 20
<— 24
- 1
- 7
59
Signal
TxD
RxD
RTS
CTS
DSR
DCD
TxC
RxC
LTST
DTR
TxCE
Shield_GND
Circuit_GND
Signal
RxD
TxD
CTS
RTS
DSR
DCD
TxC
RxC
LTST
DTR
TxCE
Shield_GND
Circuit_GND