Cisco Catalyst 3550

Appendix B Connector and Cable Specifications
Connector Specifications
B-4
Catalyst 3550 Multilayer Switch Hardware Installation Guide
78-11358-03
Figure B-2 10/100 Port Pinouts
100BASE-FX Ports
The 100BASE-FX ports use MT-RJ connectors, as shown in Figure B-3. The
100BASE-FX ports use 50/125- or 62.5/125-micron multimode fiber-optic
cabling.
You can connect a 100BASE-FX port to an SC or ST port on a target device by
using one of the MT-RJ fiber-optic patch cables listed in Table B-1. Use the Cisco
part numbers in Table B-1 to order the patch cables that you need.
Figure B-3 MT-RJ Connector
H5318
231 45678Pin Label
1
2
3
4
5
6
7
8
RD+
RD-
TD+
NC
NC
TD-
NC
NC
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