Strobes in a loop

[JJWalecka]

Trying to trace out the FA strobe loop. Is there another way figure out how many strobe's are in a loop beside just poking my head in the ceiling and following it

Thanks for your time

 

[infinity]

Are they all still wired together? You can just put 24 volts on one part of the loop and see how many fire up. I used to test old strobes by connecting them to the 18 volt battery from my cordless drill.

 

[JJWalecka]

It's an active system. I have passed the information up the ladder and waiting on response

 

[gadfly56]

I'd say infinity's suggestion is the best option. You may have more success getting this approved if you do it after normal business hours, assuming the place isn't running 24/7.

 

[JJWalecka]

I'd say infinity's suggestion is the best option. You may have more success getting this approved if you do it after normal business hours, assuming the place isn't running 24/7.

It was suggested that I could measure the ohms on the loop and apparently it's writing on the strobe...then I add it up

 

[infinity]

It was suggested that I could measure the ohms on the loop and apparently it's writing on the strobe...then I add it up

How would you calculate the resistance of the wire loop if you don't know its length?

 

[hillbilly1]

Don’t forget the EOL resistor.

 

[JJWalecka]

How would you calculate the resistance of the wire loop if you don't know its length?

True. I will really have to look into this further. Thanks for your time

 

[gadfly56]

The final issue in using resistance is that the loop is reverse biased for supervision at about 13 VDC, and every strobe has a diode in it.