NetVanta 3200/3300/3400 Series

Appendix A. Connector Pin Definitions

 

 

Dial Backup Interface Module Pinouts (DBU Connector)

An optional DIM is required for dial backup applications.

Table A-15. 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-16. 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

 

 

 

 

 

61200860L1-34AB

Copyright © 2012 ADTRAN, Inc.

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ADTRAN 1202880E1, 3448, 1202872L1, 1200821E1, 1202820G1, 1203870G1 manual Dial Backup Interface Module Pinouts DBU Connector

1203860G1, 1202872L1, 1203870G1, 1202880E1, 1202820G1 specifications

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