external bell box wiring

[1990movies]

Healthy (2 connections)
Ts
Tr
Bat -
Bat+
St
R
H+
H-
ENG

These are the connections in my elmdene alarm bell box, what do I wire to get the strobe to work to test it?

 

[EightyTwo]

St needs to be connected to 0V (H-) to make it flash.

 

[1990movies]

I tried to link those two up but nothing happened so I plugged the wires into h+ and H- and I think I'm deaf now that was unexpected, usually my older box would be the pos and neg together and a wire linked to the st- so needed three wires together. Wondering if the PCB needs to be powered up and then with a separate wire I can link the supply to the strobe?

 

[EightyTwo]

Are you wiring this to an alarm panel or just using it as a strobe?

If it's the latter, I seem to remember that you can prevent the sounder going on a tamper if you connect the Engineers input to H- before you open the box.

Hold in both tamper switches, +ve to H+, -ve to H-, black battery lead to Bat- if you want, St to -ve/H- to make it flash.

Yes, they are loud, aren't they!