Posted by jimbob (210.86.116.68) on March 23, 2004 at 17:57:20:
In Reply to: Ademco 4204 wiring problems posted by Alarm Dude on March 23, 2004 at 11:52:47:
: I have a 4204 attached to a Vista-50P via the keypad's data wires, green and yellow. The power for the relay is coming from an Altronix power supply. I want to run 4 strobe lights, 2 off relay 1 and 2 off relay 2 on the 4204. My programming seems to be good, but the relays will not work.
: My question concerns the wiring of the relays. They are each labeled C, NO, and NC. NC appears to be the rest position. Stupidly, the manual's closest description of what I want them to do is "stay closed", which I assume means, "stay activated". Bass-ackwards. So here's what I did: I took a jumper from the DC+ lead on the power supply and ran it to "C". Then I attached the positive wire from my strobes to the "NO" terminal. I ran the negative wire from the strobes to the DC- lead on the power supply. Hence, I just wanted the relay to switch open (not closed, duh) when the panel told it to via my zone list.
: So far, nothing has happened no matter what I try. If my wiring is wrong, would someone please tell me what the heck to do differently? I'm beginning to think I've got a bad 4204.
: Thanks in advance.
have you addressed the 4204 module as the first 4204 in the system? ie, 12 = 4204 number 1, N/C (normaly closed) means that the relay is linked to the C (common) terminal or de-energised state, N/O (normaly open) means there is no link to the common terminal, so the wire from the strobes either pos or neg should be wired into the N/O terminal so when the relay activates it will switch what ever voltage is at the C terminal to the N/O terminal, the wire going to the common terminal should be feeding from the Power supply, and the other wire for the strobes should also be powered from the power supply, all the relay is doing is interupting that cct, sounds like you've got it, just need to address the 4204?