Cisco Systems CGS 2520 manual Console Port Adapter Pinouts, Dsr Dtr Cts Rts

Appendix B Connector and Cable Specifications

Cables and Adapters

Figure B-9 Identifying a Crossover Cable

Pin 1	Pin 3
Pin 2	Pin 6

273807

Console Port Adapter Pinouts

The console port uses an 8-pin RJ-45 connector, which is described in Table B-2and Table B-3. If you did not order a console cable, you need to provide an RJ-45-to-DB-9 adapter cable to connect the switch console port to a PC console port. You need to provide an RJ-45-to-DB-25 female DTE adapter if you want to connect the switch console port to a terminal. You can order an adapter (part number ACS-DSBUASYN=). For console port and adapter pinout information, see Table B-2and Table B-3.

Table B-2lists the pinouts for the console port, the RJ-45-to-DB-9 adapter cable, and the console device.

Table B-2 Console Port Signaling Using a DB-9 Adapter

Switch Console	RJ-45-to-DB-9	Console
Port (DTE)	Terminal Adapter	Device
Signal	DB-9 Pin	Signal
RTS	8	CTS
DTR	6	DSR
TxD	2	RxD
GND	5	GND
RxD	3	TxD
DSR	4	DTR
CTS	7	RTS

Table B-3lists the pinouts for the switch console port, RJ-45-to-DB-25 female DTE adapter, and the console device.

Note The RJ-45-to-DB-25 female DTE adapter is not supplied with the switch. You can order this adapter from Cisco (part number ACS-DSBUASYN=).

Cisco CGS 2520 Hardware Installation Guide

B-8 OL-31444-01