hi, happy new year to all. my first project of the year is adding a second bellbox to my alarm. the current bellbox is texecom odyssey 3. so i have ordered another odyssey 3 to make it easier. i know how to wire them both together. there is currently a 6 core cable coming from the panel feeding the first sounder.

my plan is to move the cable which currently feeds the first sounder into a junction box in the wardrobe directly below, then from the junction box ill run a 6 core to each sounder. the first sounder is currently on sab so that draws approx 523 ma. the second sounder will be set to scb so approx 148 ma.

so here is the question will the alarm cable from the panel be able to support the 2 bellboxes on its own without too much voltage drop. the total draw on the cable will be 671 ma. the voltage is around 13.6v and the cable run is about 20 metres from the panel.

thanks in advance, sorry if it is too long

stu, January 2015

thanks again. i did some research on alarm cable currents and apparently it can take 50v and support 1 amp per core for 100 meters. there was me worrying over nothing. thanks again.

"google is your friend" is the truest saying

stu, January 2015

thanks

stu, January 2015

I don't think you have anything to worry about...

https://en.wikipedia.org/wiki/Voltage_drop

The simplest way to reduce voltage drop is to increase the diameter of the conductor between the source and the load, which lowers the overall resistance.

Happy New Year..., January 2015