APPENDIX B
Module Connectors and Cable Specifications
• Module Connectors, on page 71
• Cables and Adapters, on page 72
• Cleaning the Fiber-Optic Connectors, on page 74
Module Connectors
RJ-45 Connector
The RJ-45 connector is used to connect a Category 3, Category 5, Category 5e, or Category 6 foil twisted-pair
or unshielded twisted-pair cable from the external network to the module interface connector.
Figure 32: RJ-45 Interface Cable Connector
Category 5e, Category 6, and Category 6a cables can store large levels of static electricity because of the
dielectric properties of the materials used in their construction. Always ground the cables (especially in new
cable runs) to a suitable and safe earth ground before connecting them to the module.
Caution
To comply with GR-1089 intrabuilding and lightning immunity requirements, you must use a foil twisted-pair
(FTP) cable that is properly grounded at both ends.
Caution
LC Connector
The LC fiber optic connector is a small form-factor fiber-optic connector that provides high-density fiber
connectivity. The LC connector can be used with either MMF cable or SMF cable. The LC connector uses a
latching clip mechanism that is similar to the one used on the RJ-45 copper connector.
Catalyst 6840-X Switch Series Hardware Installation Guide
71
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