I expected them to work as, ON command = Siren ON, OFF command = Siren OFF, but no that would be logical.
The only way to fire the siren is ON-OFF-ON, but the siren only runs for 3 seconds then stops.
So it seems you would have to send continuous ON-OFF-ON for as long as you want it turned ON, then when the commands stop the siren would turn OFF. Thats 60 commands/minute
Q- If this is the only way, what is the best way to implement that many commands in Indigo?
Q- Is there any way to get this to operate as simple ON & OFF
*Smarthome has the product SH10a PSH02, which states:
The SH10A will sound for as long as the alarm in the security system console sounds, and then shut off a few seconds after you disarm the alarm.
What code is the alarm system sending to make it behave more like an ON & OFF