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NetVanta 1000/1000R Series Hardware Installation Guide Appendix A. Connector Pin Definitions
61200500L1-34N Copyright © 2008 ADTRAN, Inc. 73
Dial Backup Interface Module Pinouts (DBU Connector)
An optional DIM is required for dial backup applications.
Table A-14. Analog Modem and ISDN BRI DBU Connector Pinouts
Pin Name Description
1-3 — Unused
4 R Network–Ring
5 T Network–Tip
6-8 — Unused
Table A-15. ISDN S/T DBU Connector Pinouts
Pin Name Description
1, 2 — Unused
3 R1 Network Receive–Ring 1
4 R Network Transmit–Ring
5 T Network Transmit–Tip
6 T1 Network Transmit–Tip 1
7, 8 — Unused