Table Of Contents
Connector and Cable Specifications
Cable and Adapter Specifications
Crossover and Straight-Through Cable Pinouts
Rollover Cable and Adapter Pinouts
Connector and Cable Specifications
This appendix describes the Catalyst 3500 XL switch ports and the cables and adapters that you use to connect the switch to other devices.
Connector Specifications
10/100 Ports
The 10/100 Ethernet ports use standard RJ-45 connectors and Ethernet pinouts with internal crossovers, as indicated by an X in the port name. These ports have their transmit (TD) and receive (RD) signals internally crossed so that a straight-through cable and adapter can be attached to the port. Figure B-1 shows the pinout.
When connecting the 10/100 ports to compatible workstations, servers, routers, and Cisco IP Phones, you must use a straight-through cable wired for 10BaseT and 100BaseTX (Figure B-5 illustrates the straight-through cable schematics). When connecting to other switches or repeaters, ensure that you use a crossover cable. (Figure B-4 illustrates the crossover cable schematics.)
Note
Use a straight-through cable to connect two ports when one of the ports is designated with an X. Use a crossover cable to connect two ports when both ports are designated with an X or when both ports do not have an X.
Figure B-1 10/100 Port Pinouts
1000BaseX Ports
1000BaseX ports use duplex SC connectors, as shown in Figure B-2.
Figure B-2 1000BaseX SC Connector
Gigastack Port
The GigaStack Gigabit Interface Converter (GBIC) uses proprietary connectors, as shown in Figure B-3.
Figure B-3 GigaStack Connector
The GigaStack GBIC cables are proprietary, high-data-rate cables with enhanced signal integrity and EMI performance.
Caution
Console Port
The console port uses an 8-pin RJ-45 connector, described in Table B-1 and Table B-2. The supplied RJ-45-to-RJ-45 rollover cable and DB-9 adapter are used to connect the console port of the switch to a console PC. You need to provide a 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-1 and Table B-2.
Cable and Adapter Specifications
Crossover and Straight-Through Cable Pinouts
The schematics of crossover and straight-through cables are shown in Figure B-4 and Figure B-5.
Figure B-4 Crossover Cable Schematic
Figure B-5 Straight-Through Cable Schematic
Rollover Cable and Adapter Pinouts
Identifying a Rollover Cable
To identify a rollover 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 the pin on the outside of the left plug should be the same color as the wire connected to the pin on the outside of the right plug (see Figure B-6).
Figure B-6 Identifying a Rollover Cable
Connecting to a PC
Use the supplied thin, flat, RJ-45-to-RJ-45 rollover cable and RJ-45-to-DB-9 female DTE adapter to connect the console port to a PC running terminal-emulation software. Figure B-7 shows how to connect the console port to a PC. Table B-1 lists the pinouts for the console port, the RJ-45-to-RJ-45 rollover cable, and the RJ-45-to-DB-9 female DTE adapter.
Figure B-7 Connecting the Console Port to a PC
Connecting to a Terminal
Use the thin, flat, RJ-45-to-RJ-45 rollover cable and RJ-45-to-DB-25 female DTE adapter to connect the console port to a terminal. Table B-2 lists the pinouts for the console port, the RJ-45-to-RJ-45 rollover cable, and the RJ-45-to-DB-25 female DTE adapter.
Note
