User's Manual

A-1
Cisco Catalyst 4900M S witch Instal latio n Guide
78-18350-02
APPENDIX A
Specifications
Revised: January 4, 2012
This appendix provides cable and pow er supply technical spe cifications for the Cataly st 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.
Note A console cable is not provided in the accessory kit. It ca n be ordered as an option.
Tabl 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