Instruction manual

A-3. VOICE CHANNEL INTERFACE

The voice channel interface has 8-pin RJ-45 connectors, wired as listed in Ta-

bles A-6 and A-7.

Table A-6. FXO and FXS Voice Channel Interfaces, Connector Wiring

Pin Designation Function

1, 2, 3 –

Not connected

4 RING

2W voice input/output

5 TIP

2W voice input/output

6, 7, 8 –

Not connected

Table A-7. E&M Voice Channel Interface, Connector Wiring

Pin Designation Function

1SB

Signaling battery

M lead input

3 R1-OUT

4-wire voice output

2-wire input/output

4 R-IN

4-wire voice input

5 T-IN

4-wire voice input

6 T1-OUT

4-wire voice output

2-wire input/output

7SG

Function depends on signaling mode:

RS-464 Type I, III Direct connection to signal

ground

RS-464 Type V, SSDC5 Connection to signal ground

through 1.1 kΩ resistor

RS-464 Type II SG lead

E lead output

VOICE CHANNEL INTERFACE

DV-MUX3 Installation and Operation Manual A-7