
61200208L1-1 Express 5210 User Manual A-1
Appendix A
Pinouts
The following tables give the pin assignments for the connectors
located on the back of the Express 5210, the DBU cards, the DCE
card, and the Voice cards. For more information on the connectors,
see the section Rear Panel on page 2-2.
Table A-1. Telco Connector Pin Assignments
Pin Name Description
1 R1 Transmit Data from DSU to Network-Ring 1
2 T1 Transmit Data from DSU to Network-Tip 1
3-6 - Not Used
7 T Receive Data from Network to DSU-Tip
8 R Receive Data from Network to DSU-Ring
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