On Jan 25, 6:00 pm, wrote:
There's a metal box attached to the side of my smoke alarm box with
what looks like a phone line coming out of it. It travels between the
joists for about 10' before disappearing into the subfloor above. I'd
like to disconnect this box to mount the smoke detector in a new place
(and will reattach then if needed).

PIc is at:http://img89.imageshack.us/img89/8822/img0693st8.jpg

Thanks!


That is a 12V or 24V transformer supplying electricity to the furnace
thermostat system, or to your doorbell, or perhaps an alarm system.


Dave