Cisco 2950 Hardware Installation Guide - Page 103

Appendix B Connectors and Cables Connector Specifications SFP Module Ports The Catalyst 2950 LRE switch uses SFP modules for fiber-optic and copper uplink ports. See the Catalyst 2950 LRE switch release notes for a list of supported SFP modules. See Figure B-7 and Figure B-8. Figure B-7 Fiber-Optic SFP Module LC Connector 58476 Warning Invisible laser radiation may be emitted from disconnected fibers or connectors. Do not stare into beams or view directly with optical instruments. Statement 1051 Figure B-8 1000BASE-T SFP Module RJ-45 Connector Pin Label 12345678 1 TP0+ 2 TP0- 3 TP1+ 4 TP2+ 5 TP2- 6 TP1- 7 TP3+ 8 TP3- 60915 Console Port The console port uses an 8-pin RJ-45 connector. You can connect a switch to a PC through the console port and the supplied RJ-45-to-DB-9 adapter cable. If you want to connect a switch to a terminal, you need to provide an RJ-45-to-DB-25 female DTE adapter. You can order a kit (part number ACS-DSBUASYN=) with that adapter from Cisco. For console-port and adapter-pinout information, see Table B-3 and Table B-4. Identifying a Crossover Cable You can identify a crossover cable by comparing the two modular cable ends. 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-9.) OL-6156-01 Catalyst 2950 Switch Hardware Installation Guide B-5