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SEL 2505 Remote IO Module – no flash photography!

A strange investigation of a remote IO module exposed to a flash from digital cameras…

SEL-2505 camera flash testing

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2 Comments on “SEL 2505 Remote IO Module – no flash photography!”

  1. Danny Clark says:

    Did you try shielding the fiber optic jumpers from the flash?

    What did SEL say about this?

    • itcoop says:

      I notified SEL. They didn’t seem too concerned about it. I used this post as a reference of the call. As you can see, the post is rather old. I can still replicate the issue on the newer 2505’s. The fiber optic jumpers are shielded. I believe the light is entering via the plastic LED light channels into the chassis. Blocking the light from entering the face of the 2505 seems to prevent the issue.


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