Cables And Adapters; Sfp Module Cables; Cable Pinouts - Cisco Catalyst 6840 Series Hardware Installation Manual

Cables and Adapters

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
Note
Make sure that the optical connectors are clean before making the connections. Contaminated connectors can
damage the fiber and cause data errors.
Figure 33: LC Fiber-Optic Connector
Cables and Adapters

SFP Module Cables

For cabling specifications, refer to the following notes:
•
•
Each port must match the wave-length specifications on the other end of the cable, and the cable must not
exceed the stipulated cable length. Copper 1000BASE-T SFP module transceivers use standard four twisted-pair,
Category 5 cable at lengths up to 328 feet (100 meters).

Cable Pinouts

Figure 34: Four Twisted-Pair Straight-Through Cable Schematic
Catalyst 6840-X Switch Series Hardware Installation Guide
72
Cisco SFP and SFP+ Transceiver Module Installation Notes
Cisco 40-Gigabit QSFP+ Transceiver Modules Installation Note
Module Connectors and Cable Specifications