Dual FC-7688E don´t work...

[Brage]

Hello!

I have two FC-7688E (Expansion 1 and Expansion 2). I want to connect these to my host FC-7668Pro. Exp1 is adressed 1111 zone 129-136. Exp2 0111 zone 137-144. I have connect a four wire from host to exp1. Power from host "Auxiliary power output" to exp1 12+ and GND. Then i use "BUS MODULE A B" from host to exp1 A B. Then i have a 2nd four wired cabel connected exactly as first one to my Exp2 module.

I cant get this to work... When i connect expansion 1 it´s works, then i connect expansion 2 to, expansion 1 still works but expansion 2 looks like it works, red light flash and the green blink. But i get fault message "Loop fault" on expansion 2. If i disconnect expansion 1 and only have expansion 2 connected it works with expansion 2. Everything looks like it works on the expansions, when i activate a zone on one of the expansions the green light start flash. If i select "unused" the green light stop flash. But as i say, expansion 2 get fault message if both expansions is connected and i have activate a zone in expansion 2.

Hope for help...

[vedard]

Hi!
Have you set the defense zone attributes in the defense zone attribute settings of the expansion zones?

[vedard]

And be sure the total power supply demand of the keyboard, auxiliary power supply, siren etc. does not exceed the maximum power of the host of 350mA。