8: Mixed Signal xNode • 37
© 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
To Next Page
Loading...