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BlackDiamond 8800 Series Switches Hardware Installation Guide
174
Figure 108 shows the pinouts for a 9-pin to 25-pin (RS-232) null-modem cable.
Figure 108: Null-modem Cable Pinouts
Figure 109 shows the pinouts for a 9-pin to 9-pin (PC-AT) null-modem serial cable.
Figure 109: PC-AT Serial Null-modem Cable Pinouts
Screen
TxD
RxD
Ground
RTS
CTS
DSR
DCD
DTR
Cable connector: 9-pin female
Switch
Cable connector: 25-pin male/female
25pin
PC/Terminal
Screen
RxD
TxD
Ground
RTS
DTR
CTS
DSR
DCD
Shell
3
2
5
7
8
6
1
4
1
3
2
7
4
20
5
6
8
Screen
TxD
RxD
Ground
RTS
CTS
DSR
DCD
DTR
Cable connector: 9-pin female
Switch
Cable connector: 25-pin male/female
25pin
PC/Terminal
Screen
RxD
TxD
Ground
RTS
DTR
CTS
DSR
DCD
Shell
3
2
5
7
8
6
1
4
1
3
2
7
4
20
5
6
8