1 of my 3 OS1s showing Open. The other 2 showing Closed?

[Dondante]

Ok, I just purchased an FMM Module today and added 3 OS1s to my FW container.

2 are showing closed and one is showing Open.

How do I change that?

 

[Dondante]

Fixed!!

Ok. I updated. Unchecked Auto Detec and selected Optical. Same thing happened.

I went and unpluggrd and plugged back in. Problem moved to #3. Unplugged 3 and plugged back it. Working so far. Man, touchy little plugs. Maybe some dielectric grease would help?

What state should the sensor be when dry?

 

[ca1ore]

The optical sensors are normally open ..... so should read open when dry. Very sensitive to fouling though, and then they’ll get ‘stuck’ closed, so keep them clean.