A-1
Cisco Catalyst 4900M Switch Installation Guide
78-18350-01
A P P E N D I X
A
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.
Table 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
