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© 2016 Axia Audio - Rev 2.0
The illustration shows the connector pinouts; 5 inputs and associated common return, 5 output relays and associated com-
mon, a +5 volt power source, and power source ground.
Figure 8-2
The maximum allowed external power supply for logic control is 48 volts DC. The use of current
limiting resistor is required for some voltages.
INPUT
VDC
External Series Resistor
5
0
6
0
12
680 @ 1/4 watt
24
1.8k @ 1/2 watt
48
3.9k @ 1 watt
Using external power supplies is the recommended method to avoid possible ground loops between equipment.
Figure 8-3