Appendix B Connectors and Cables
Connector Specifications
B-4
Catalyst 2950 Desktop Switch Hardware Installation Guide
78-11157-03
Figure B-2 RJ-45 Pinouts for 10/100/1000 and 1000BASE-T GBIC Module Ports
100BASE-FX and 1000BASE-SX Ports
The 100BASE-FX and 1000BASE-SX ports use MT-RJ connectors, shown in
Figure B-3. These ports use 50/125- or 62.5/125-micron multimode fiber-optic
cabling.
You can connect a 100BASE-FX or 1000BASE-SX 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
1 2 3 4 5 6 7 8
Pin Label
1
2
3
4
5
6
7
8
TP0+
TP0-
TP1+
TP2+
TP2-
TP1-
TP3+
TP3-
34751
28845
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