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Appendix A – MAs for VF-25 Voice Module
Intraplex VF-25 Voice Module
Version 7.1, November 2009
GatesAir, Inc.
A-19
Intraplex Products
Table A-21. MA-310 Pin Assignments
Pairing
Pin
Description
Comments
Pair 3
Pin 1
T1
T1 & R1 send signal from CO side (trunking) to user side (signaling)
Pin 2
R1
Pair 2
Pin 3
E
Pair 1
Pin 4
R
T1 & R1 send signal from user side (signaling) to CO side (trunking)
Pin 5
T
Pair 2
Pin 6
SG
Pair 4
Pin 7
M
Pin 8
SB
A.1.6.3 E&M Signaling
Type I, II, III, or V interface is selectable by jumper setting per channel. Figure A-11 shows the
jumper settings that control signaling type selection. The top of the figure shows Pin A.
A.1.6.4 Attenuation Control
Figure A-13 shows the jumper settings available to control output attenuation. The top of the figure
shows Pin A. The default setting is 0dBm in and 0dBm out. Table A-22 shows the attenuation for
nominal output level of 0dBm. Interface Type diagrams appear in other sections of this manual.
Figure A-13. MA-310 Jumper Settings for Attenuation Control
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