Originally Posted by jacket_fan
I have solved my immediate problem of getting the trigger to trip the relay. The relay is used to turn on amps. I built it based on a design by a fellow AVSer.
See this thread: https://www.avsforum.com/forum/155-diy-speakers-subs/1303723-automatically-powering-pro-amps-via-relay-guide-w-pics-16.html#post56102794
I had only been using Trigger 1. On a whim, I plugged into Trigger 2 and the relay worked. Not sure why. I would have thought each would have the same miliamps output.
So if any of you are like me and have pro amps, this relay allowed me to have the amps in another room so you don't hear the fans. Pretty elegant solution to getting rid of the fan noise.
Another item I can pass along. I use iRule and found commands to turn the triggers on and off. So there are specific database commands to trip the triggers. In case you wanted to trigger something besides amps.
Revisiting the trigger output to sequence power amps topic, I'd like to share my well-documented adventures in this area. I posted this AVS thread that details the DIY build of a power distribution system
I built. Just today, I added information on how I trigger that beast from the 8802, and some of you will find the product I used of interest. It might be helpful if you need a different voltage to trigger or just higher amperage.
It's kind of funny that it takes a cascade of no less than four relays to get an amp to tun on in my rig
8802 12v relay-->ELK 912b relay-->SurgeX relay (x4)-->PDU relay
Also, I'll reinforce a couple of tips that have been shared previously about triggers:
- Disconnect the 8802 from the AC power (pull the plug on the back) BEFORE inserting or removing the 12v trigger connections
- Study the manual regarding 12v trigger settings, but here is the simplest config for triggering amps:
In the trigger output settings screen for the trigger you will use to control external amps, turn Main Zone to ON, all others to 'Ignore' which displays as a dash symbol.
Note that the trigger output will possibly be out of sync as you change settings. So set the settings, then go into standby, then come out of standby. The trigger should go on, regardless of the selected input, and will go off when the unit is returned to standby.
And here's a pic of that PDU I built to drive some of the seven amps in the rig: