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AP800 Control and Status Ports Wiring Ground Reference

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    AP800 Control and Status Ports Wiring Ground Reference

    Sorry if this is a really basic question, but I wanted to make sure that I didn't damage anything. I have a JDS Stargate with 16 opto-isolated digital inputs. Since the AP800 Port A has one ground on Pin 25, can I connect this ground to the 16 digital ground inputs on the Stargate. Do I lose my isolation by connecting the grounds together. I don't really see another way to do this, but I just wanted to check with the experts first.

    Thanks!
    Chuck

    #2
    AP800 Control/Status Problem

    Gang,

    Here is an update. The microphone gating status seems to work fine with only hooking up the one of the leads to the Stargate Digital Inputs (pins 17-24 from the AP800 Port A). No ground wire from the AP800 is used for any of the Stargate digital inputs.

    All of the microphone inputs seem to work fine going to the digital inputs (1-8) on the Stargate. But, the other status inputs do not.

    Pin 17 (Mic 1) of AP800 to Digital Input 1 on Stargate (Works)
    Pin 18 (Mic 2) of AP800 to Digital Input 2 on Stargate (Works)
    Pin 19 (Mic 3) of AP800 to Digital Input 3 on Stargate (Works)
    Pin 20 (Mic 4) of AP800 to Digital Input 4 on Stargate (Works)
    Pin 21 (Mic 5) of AP800 to Digital Input 5 on Stargate (Works)
    Pin 22 (Mic 6) of AP800 to Digital Input 6 on Stargate (Works)
    Pin 23 (Mic 7) of AP800 to Digital Input 7 on Stargate (Works)
    Pin 24 (Mic 8) of AP800 to Digital Input 8 on Stargate (Works)

    Pin 2 of AP800 to Digital Input 9 on Stargate (Does not work)
    Pin 4 of AP800 to Digital Input 10 on Stargate (Does not work)
    Pin 6 of AP800 to Digital Input 11 on Stargate (Does not work)
    Pin 8 of AP800 to Digital Input 12 on Stargate (Does not work)
    Pin 10 of AP800 to Digital Input 13 on Stargate (Does not work)
    Pin 12 of AP800 to Digital Input 14 on Stargate (Does not work)
    Pin 14 of AP800 to Digital Input 15 on Stargate (Does not work)
    Pin 16 of AP800 to Digital Input 16 on Stargate (Does not work)

    I have attached a screen shot for pin 2 on the AP800 as a test case. I have muted Mic 1 on and off with no change scene to the corresponding Stargate digital input #9.

    I have also tried using the ground wire from pin 25 of the AP800 but this did not make a difference either.

    What am I missing here?

    Any help would be greatly appreciated.

    Thanks!
    Chuck
    Attached Files

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