Technical information

OPTO DIO Reference Opto IN24
Volt Free Contact Whetting Voltage.________________________________
An on card isolated power supply provides 12 volts at 2
Watts as a whetting voltage source for volt free contacts. This
isolated 12 Volt source, with it isolated ground, can be drawn
out through the edge connector on IDC pins 49 and 50, 50D
pins 17 and 50, when the EXPOWER jumpers are set correctly.
Figure 6-6. Expower Jumpers.__________________________
On board ISO +12V power NOT output via edge connector.
FACTORY SET___________
On board +12V power output via edge connector.
Figure 6-7. Whetting Volt Free Contacts.___________________________________
Using Volt Free Contacts.______________________
Users often need to know whether a switch has been
opened or closed by an operator. Switches, or any other volt free
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