Cisco Systems OL-6157-01 Cable and Adapter Pinouts, Connecting to a PC, Connecting to a Terminal

Appendix B Connectors and Cables

Cable and Adapter Specifications

Cable and Adapter Pinouts

This section describes the cable and adapter pinouts and also describes how to identify a rollover cable.

Connecting to a PC

Use the supplied RJ-45-to-DB-9 adapter cable to connect the console port to a PC running terminal-emulation software. Table B-2lists the pinouts for the console port and the RJ-45-to-DB-9 adapter cable.

Table B-2 Console Port Signaling and RJ-45-to-DB-9 Adapter Cabling

Console	RJ-45-to-DB-9		Console
Port (DTE)	Adapter Cable		Device
Signal	RJ-45 Pin	DB-9 Pin	Signal
RTS	1	8	CTS
Not connected	2	6	DSR
TxD	3	2	RxD
GND	4	5	GND
GND	5	5	GND
RxD	6	3	TxD
Not connected	7	4	DTR
CTS	8	7	RTS

Connecting to a Terminal

Use the supplied RJ-45-to-DB-9 adapter cable and an RJ-45-to-DB-25 female DTE adapter to connect the console port to a terminal. Table B-3lists the pinouts for the console port, the adapter cable, and the RJ-45-to-DB-25 adapter.

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

Catalyst 2940 Switch Hardware Installation Guide

B-8 OL-6157-01