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Cisco Catalyst 4900M Switch Installation Guide
78-18350-01
APPENDIX
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Specifications

This appendix provides cable and technical specifications for the Catalyst 4900M
switches.

Console Port

The console port is an RJ-45 receptacle. The Request to Send (RTS) signal tracks
the state of the Clear to Send (CTS) input. Table A-1 lists the console port pinouts.
Tab l e A-1 Console Port Pinouts
Pin Signal Direction Description
1RTS output request to send
2DTR output data terminal ready
3TXD output transmit data
4GND — —
5GND — —
6RXD input receive data
7DSR input data set ready
8CTS input clear to send