Rj-21 Connector - Cisco 6503 - Catalyst Firewall Security Sys Installation Manual

Appendix B Transceivers, Module Connectors, and Cable Specifications

RJ-21 Connector

The RJ-21 connectors (shown in
for 12 ports.
Note The RJ-21 connector for the WS-X6624-FXS module has pins for 24 ports. See the
(WS-X6624-FXS Only)" section on page
Warning If the symbol of suitability with an overlaid cross appears above a port, you must not connect the
port to a public network that follows the European Union standards. Connecting the port to this type
of public network can cause severe personal injury or can damage the unit. Statement 1031
To connect to 10/100BASE-TX RJ-21 telco interfaces, use Category 5 UTP cables with male RJ-21
connectors, as shown in
connector, but the pinout arrangement is different than the 10/100BASE-TX.
Figure B-14
Table B-23
polarized. One pin of each signal pair carries the positive (+) signal, and the other pin carries the negative
(–) signal.
Table B-23
Note
to the module.
OL-5781-08
Figure B-14. The WS-X6224-FXS analog interface module also uses an RJ-21
RJ-21 Telco Interface Cable Connectors
90
RJ-21
connector
180 RJ-21
connector
lists the output signals for the RJ-21 telco connector. The receive and transmit signals are
lists the output signals for the RJ-21 telco connector, not the pinouts of the cable connecting
Figure B-14) are used on telco modules. Each RJ-21 connector has pins
B-27.
Catalyst 6500 Series Switches Installation Guide
Module Connectors
"RJ-21 Connector
RJ-21 port
110
RJ-21
connector
B-25