Cisco WS-X6416-GE-MT - Interface Module - Expansion Instalační příručka stáhnout pdf (Strana 164)

Appendix B Cable and Connector Specifications

RJ-21 Connector

B-2

Catalyst 6500 Series Switch Module Installation Guide

78-15725-02

RJ-21 Connector

The RJ-21 data bus (DB-21) connectors connect Ethernet, Fast Ethernet, or phone

connections to a punch-down block or a patch panel using Category 3,

Category 5, Category 5e, or Category 6 UTP or FTP. (See Figure B-1.)

Note Do not use Category 3 RJ-21 telco connectors and cables on the 48-port

10/100BASE-T switching module. If you use Category 3 RJ-21 connectors and

cables, you will get carrier sense errors in your network. You must use Category 5,

Category 5e, or Category 6 RJ-21 connectors and cables because the module’s

connectors are keyed for Category 5, Category 5e, or Category 6 connectors and

cables.

Caution Category 5e and Category 6 cables can store high 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.

Figure B-1 RJ-21 Connectors

180

RJ-21 port

110

48136

RJ-21

connector

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Cisco WS-X6416-GE-MT - Interface Module - Expansion Instalační příručka Strana 164