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B-12
Cisco 7600 Series Router Supervisor Engine and Route Switch Processor Guide
OL-10100-04
Appendix B Cable and Connector Specifications
Fiber-Optic Connectors
Figure B-4 Twisted-Pair Crossover 1000BASE-T Cable Schematic
Fiber-Optic Connectors
This section describes the SC, MT-RJ, and LC fiber-optic connectors and provides instructions for
cleaning the fiber-optics connectors. It contains the following sections:
• SC Connectors, page B-12
• MT-RJ Connectors, page B-13
• LC Connectors, page B-14
• Cleaning the Fiber-Optic Connectors, page B-15
SC Connectors
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
The SC single-mode fiber connector is used to connect fiber-optic module ports with the external
network.
(See Figure B-5.)
Tab le B-13 1000BASE-T Crossover Cable Pinout (MDI-X)
Side 1 Pin (Signal) Side 2 Pin (Signal)
1 (TP0+) 3 (TP1+)
2 (TP0–) 6 (TP1–)
3 (TP1+) 1 (TP0+)
6 (TP1–) 2 (TP1–)
4 (TP2+) 7 (TP3+)
5 (TP2–) 8 (TP3–)
7 (TP3+) 4 (TP2+)
8 (TP3–) 5 (TP2–)
1 TPO+
2 TPO-
3TP1+
6TP1-
1TP0+
Switch Switch
2TP0-
3TP1+
6TP1-
4TP2+
5TP2-
7TP3+
8TP3-
4TP2+
5TP2-
7TP3+
8TP3-
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