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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.
Ta b l e A-1 Console Port Pinouts
Pin Signal Direction Description
1 RTS output request to send
2 DTR output data terminal ready
3 TXD output transmit data
4 GND — —
5 GND — —
6 RXD input receive data
7 DSR input data set ready
8 CTS input clear to send
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