Appendix B Connector and Cable Specifications
Cables and Adapters
To identify a crossover cable, compare the two modular ends of the cable. Hold the cable ends side-by-side, with the tab at the back. The wire connected to pin 1 on the left plug should be the same color as the wire connected to pin 3 on the right plug. The wire connected to pin 2 on the left plug should be the same color as the wire connected to pin 6 on the right plug.
Figure B-10 Identifying a Crossover Cable
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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 with your switch, you need to provide an RJ-45-to-DB-9 adapter cable to connect the console port of the switch to a console PC. 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 a kit (part number ACS-DSBUASYN=) containing that adapter from Cisco. 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 |
| | |
GND | 5 | GND |
| | |
RxD | 3 | TxD |
| | |
DSR | 4 | DTR |
| | |
CTS | 7 | RTS |
| | |
Cisco ME 3400E Ethernet Access Switch Hardware Installation Guide
