GatesAir Intraplex VF-25, Installation And Operation Manual

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Intraplex VF-25 Voice Module Appendix A – MAs for VF-25 Voice Module
Version 7.1, November 2009
A-22 GatesAir, Inc.
Intraplex Products
A.2 Discontinued Module Adapters
A.2.1 MA-305B Four-wire, 50-pin Connector
The MA-305B module adapter accepts a 50-pin connector, Amphenol 57-30500 or equivalent (Figure
A-14). Table A-25 shows the pin assignments on this connector. Jumpers JMP1 through JMP9 are used
to select the signaling type (JMP5 is not used on the MA-305B). Figure A-14 shows how to hold the
adapter and set the jumpers.
For Jumpers JMP6, 7, 8 and 9: For Jumper JMP1, 2, 3 and 4:
= Type V only
= Type I, II or III
= Type II only
= Type I, III or V
Figure A-14. MA-305B Jumper Settings and Face Plate
Table A-25. MA-305B Pin Assignments
Signal
Pin Assignment
Ch. 1 Ch. 2 Ch. 3 Ch. 4
Input (Ring) 1 5 9 13
Input (Tip) 26 30 34 38
Output (Ring) 2 6 10 14
Output (Tip) 27 31 35 39
E-Lead 28 32 36 40
M-Lead 29 33 37 41
Signal Ground 3 7 11 15
Signal Battery 4 8 12 16
To install the MA-305B module adapter, perform these steps: