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C-5
Cisco MDS 9216 Switch Hardware Installation Guide
78-16165-01
AppendixC Cable and Port Specifications
COM1 Port
COM1 Port Pinouts
Table C -4 lists the pinouts for the COM1 port on the Cisco MDS 9216 Switch.
Connecting the COM1 Port to a Modem
You can use the green RJ-45to DB-9 female DTE adapter (labeled “FOR
DS-C9216-K9 ONLY”) to connect to the COM1 port, and the RJ-45 to DB-25
male DCE adapter (labeled “Modem”) to connect to the modem, then connect the
adapters with the RJ-45toRJ-45 rollover cable.
Note Use the green DB-9 adapter that is specifically labeled for use with the Cisco
MDS 9216 Switch. If this adapter is not included in the accessory kit, you can
request one from your customer service representative.
Table C -5 lists the pinouts for the COM1 port, the RJ-45 to DB-9 adapter,
RJ-45 to RJ-45 rollover cable, and the RJ-45 toDB-25 male DCE adapter.
TableC-4 COM1 Port Pinout
Pin Signal
1DCD
2TxD
3RxD
4DTR
5GND
6DSR
7RTS
8CTS
9RI