Does anyone know how to connect an MP3 board to a simplex 4004? Can you show pictures if the explanation is confusing? Thanks!
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The 4004 terminals are very different
it has an aux relay and power, thats all you need. you use the aux power to power the board and the aux relay to trigger the first input. its just contact closure. you connect to C and NO of your alarm relay.
I don’t see c and no or nc
I need help with this asap. Someone please just tell me the terminals I have to use
I’m not familiar with that board nor the 4004 buuuut, that’s how I would wire up the board’s power input (reffering to the MP3 board):
- Board power positive input to 24V AUX on the 4004
- Board power negative output to 0V AUX on the 4004.
Then with a suitable relay (must have a 24V coil and a back EMF suppression diode, this is important not to fry the panel! An Air Products and Control MR-101 should do the trick nicely.) connected to NAC 1 (set to continuous) you connect the normally open and the common to the MP3 board’s trigger input. That way, when the 4004 goes into alarm and NAC 1 activates, the relay will close and activate the MP3 board, and when you hit “alarm silence“, the relay will open.
To trigger the relay, you just connect it to NAC 1 (after making sure it’s set to continuous!) as if it were a regular horn or strobe.
This is if you’d like to have the option to silence the MP3 board.
Otherwise, you’re, uh, kind of in a bad spot, as Simplex seems to have intended the onboard Aux relay outputs to be tied to the aux +24V (meaning they are only suitable to kick off another relay), at least if I understood correctly the field wiring diagram.
If you chose to use the panel’s alarm board (in which case you won’t be able to silence it), you just run a wire from AUX 24 to the MR-101’s “24” terminal (or the positive of the coil contact if you use a different relay) and the 0V terminal goes to the AUX ALM terminal on the 4004.
If you manage to find a 4004-9803 relay expansion board for your 4004, this would simplify things greatly, you would just connect the mp3 board’s trigger input to the 4004-9803’s alarm terminals, as it’s just a dry contact.
it does not have aux relays
wait there might be i will look tommorow