Front-c unit (vx-4100), Circuit diagram – Vertex Standard VX-4200 User Manual
Page 33
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I-1
FRONT-C Unit (VX-4100)
Circuit Diagram
RX: 0 V
TX: 5.0 V
RX: 5.0 V
TX: 0 V
NORMAL: 0 V
EMERGENCY MIC: 5.0 V
8.6 V
5.0 V
RX: 5.0 V
TX: 0 V
HOOK OFF: 5.0 V
HOOK ON: 0 V
13.6 V
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