System Powered and Field Powered Devices in Mark V

>Does all the contact inputs in Mark V are powered by
>control system itself or they are externally powered devices
>also?

<i>In general,</i> the Mark V provides the power for all the discrete (contact) inputs to the Mark V. But, if you can be more specific there are exceptions to most rules in any GE control system, even the Mark V.
 
Top