[grc] Allen & Heath XB14 MK2, on-air light

[Simon Frech]

This week I was helping an LPFM station with some wiring. They use the Allen & Heath XB14 MK2 mixer and have a Sandies brand on-air light.
According to the manual the Remote A connector pins 1 and 8 will provide connectivity when Mic 1 is on and fader is up (a little ways). I did measure continuity with a multimeter, but when I connected the negative from the 12V power supply for a Sandies On Air light, the LEDs start glowing even before the fader is up. With the fader up completely, the LEDs are a bit brighter, but the difference is hard to tell. 

Someone from the station had purchased a relay, but putting that in the circuit didn’t solve the problem.

I understand the XB14 is in use at many LPFM stations, and the Sandies lights are popular, so how does one connect these things? 

Thanks,

Simon Frech