Connecting Equipment to the Console Por t
Summit 200 Series Switch Installation and User Guide 33

Appropriate cables are available from your local supplier. To make your own cables, pinouts for a DB-9

male console connector are described in Table 10.

Figure 9 shows the pin-outs for a 9-pin to RS-232 25-pin null-modem cable.

Figure 9: Null-modem cable pin-outs

Figure 10 shows the pin-outs for a 9-pin to 9-pin PC-AT null-modem serial cable.

Figure 10: PC-AT serial null-modem cable pin-outs

Table 10: Console Connector Pinouts

Function Pin Number Direction
DCD (data carrier detect) 1In
RXD (receive data) 2In
TXD (transmit data) 3Out
DTR (data terminal ready) 4Out
GND (ground) 5 —
DSR (data set ready) 6In
RTS (request to send) 7Out
CTS (clear to send 8In
Screen
TxD
RxD
Ground
RTS
CTS
DSR
DCD
DTR
C
able connector: 9-pin female
S
ummit Cable connector: 25-pin male/fema
le
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
8ser_sum
1
Screen
DTR
TxD
RxD
CTS
Ground
DSR
RTS
DCD
C
able connector: 9-pin female
S
ummit Cable connector: 9-pin fema
le
PC-AT Serial Port
Screen
DCD
RxD
TxD
DTR
Ground
DSR
RTS
CTS
Shell
4
3
2
8
5
6
7
1
Shell
1
2
3
4
5
6
7
8ser_sum
2