Appendix A
TA 900 Series (3rd Gen) HIG
32
Copyright © 2020 ADTRAN, Inc.
61213908F1-34A
APPENDIX A. PIN ASSIGNMENTS
The following tables provide the pin assignments for the unit.
Table A-1. VOICE Connector Pinouts
Pins
50-pin
Amphenol
Connector
Description
1, 26
Circuit 1
FXS 0/1 Ring, Tip
2, 27
Circuit 2
FXS 0/2 Ring, Tip
3, 28
Circuit 3
FXS 0/3 Ring, Tip
4, 29
Circuit 4
FXS 0/4 Ring, Tip
5, 30
Circuit 5
FXS 0/5 Ring, Tip
6, 31
Circuit 6
FXS 0/6 Ring, Tip
7, 32
Circuit 7
FXS 0/7 Ring, Tip
8, 33
Circuit 8
FXS 0/8 Ring, Tip
9, 34
Circuit 9
FXS 0/9 Ring, Tip
10, 35
Circuit 10
FXS 0/10 Ring, Tip
11, 36
Circuit 11
FXS 0/11 Ring, Tip
12, 37
Circuit 12
FXS 0/12 Ring, Tip
13, 38
Circuit 13
FXS 0/13 Ring, Tip
14, 39
Circuit 14
FXS 0/14 Ring, Tip
15, 40
Circuit 15
FXS 0/15 Ring, Tip
16, 41
Circuit 16
FXS 0/16 Ring, Tip
17, 42
Circuit 17
FXS 0/17 Ring, Tip or FXO 0/1 Ring, Tip
18, 43
Circuit 18
FXS 0/18 Ring, Tip or FXO 0/2 Ring, Tip
19, 44
Circuit 19
FXS 0/19 Ring, Tip or FXO 0/3 Ring, Tip
20, 45
Circuit 20
FXS 0/20 Ring, Tip or FXO 0/4 Ring, Tip
21, 46
Circuit 21
FXS 0/21 Ring, Tip or FXO 0/5 Ring, Tip
22, 47
Circuit 22
FXS 0/22 Ring, Tip or FXO 0/6 Ring, Tip
23, 48
Circuit 23
FXS 0/23 Ring, Tip or FXO 0/7 Ring, Tip
24, 49
Circuit 24
FXS 0/24 Ring, Tip or FXO 0/8 Ring, Tip
25, 50
—
Unused
The Total Access 908 only uses circuits 1 through 8. The Total Access 916 only
uses circuits 1 through 16. The Total Access 924 uses circuits 1 through 24, and
the FXO interfaces are on circuits 17 through 24. The FXO ports are only available
on the Total Access 924.