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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-21
Intraplex Products
Table A-24. MA-310 Technical Specifications
Condition
Value
Input Impedance
Level tr3dBm0 to –37dBm0 input
Tx level 0 dBm from 4W to 2W
Rx level 0 dBm from 2W to 4W
600
< 0.5dB+/-
< 0.5dB+/-
< 0.5dB+/-
2W echo return loss
ERL minimum
SRL high minimum
SRL low minimum
28 dB
20 dB
20 dB
4W trans hybrid loss
SRL high minimum
SRL Low minimum
ERL minimum
20 dB
20 dB
28 dB
4Wire RX level terminated from 2Wire
-28.5dB
Freq. response 0 dB referenced to 1004Hz
2 wire receive circuit
304Hz
1004Hz
3004Hz
3204Hz
3404Hz
-.5 +/- .25dB
-.5 +/- .25dB
-.5 +/- .25dB
-.75 +/- .25dB
-1.5 +/- .25dB
2 wire transmit circuit
304Hz
1004Hz
3004Hz
3204Hz
3404Hz
-.5 +/- .25dB
-.5 +/- .25dB
-.5 +/- .25dB
-.75 +/- .25dB
-1.5 +/- .25dB
A.1.6.6 Signal Battery Polarity
To utilize the signal battery polarity option, remove the jumpers in applications where the external
signaling battery is positive (+) with respect to chassis ground. In cases of positive (+) signaling
battery applications, both jumpers must be removed.
A.1.6.7 Installation
To install the MA-310 module adapter, perform these steps:
1.
At the rear of the chassis, insert the adapter into the same slot position in which the VF-25 module
has been installed.
2.
Once it is seated securely, secure the unit with screws provided.
3.
Plug the connector into the adapter.
Содержание Intraplex VF-25
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