Appendix B Connector and Cable Specifications
Cables and Adapters
Figure B-9 Identifying a Crossover Cable
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
