Paul,
If you want to get fancy, you could use the 12v trigger out of the CAV's main zone to power a relay. The relay would need to be wired in-line on the CAT5 between the A-Bus Keypad and CAV so that the solid brown wire which provides positive voltage to the keypad is disrupted when the main zone is turned off (12v trigger turns off).
Problem with this is that the sub zone will not work unless the main zone is also on (may be a problem for customer, maybe not).
If the customer wants the sub zone to function when the main zone is off, but always be powered off with the main zone (or with an all off), you'd need to get even fancier by using a relay with timer.
Something like the Elk 960 timer/relay would work for this:
http://www.elkproducts.com/products/elk-960.htm
The functionality would disconnect power to the A-Bus keypad for a couple seconds when the main zone is shut off and then restore it so the A-Bus sub zone could be turned on later with the main zone still off.
You'd have to duplicate this setup twice (once for each sub zone).
I don't think trying to do this via IR is a good idea... you'd have to get IR emitters at each A-Bus keypad and then devise some way to send the IR commands at the appropriate time. I don't know of a way to use the CAV to send these IR commands when a zone shuts off. You'd need a little controller like the Applied Digital Oceleot that could intercept the CAV's RS-232 command when a main zone is shut off and then output the A-Bus IR Off command which would then need to be routed to emitters located at the sub zone keypads. To control both sub zones independantly, you'd also need someway to route IR so that both aren't controlled at the same time (Oceleot doesn't do routing, but there's an add-on module that does).
Short answer... no EASY way to do this, but some work-arounds like mentioned above should work if you're competent enough with this kind of stuff to put it all together. I actually enjoy doing weird custom stuff like this.
Let your customer know that they can also issue an All On or All Off from any UNO-S1 or S2 by pressing and holding the power button... doesnt' need to be done at the TS2.
Cheers,
Paul
If you want to get fancy, you could use the 12v trigger out of the CAV's main zone to power a relay. The relay would need to be wired in-line on the CAT5 between the A-Bus Keypad and CAV so that the solid brown wire which provides positive voltage to the keypad is disrupted when the main zone is turned off (12v trigger turns off).
Problem with this is that the sub zone will not work unless the main zone is also on (may be a problem for customer, maybe not).
If the customer wants the sub zone to function when the main zone is off, but always be powered off with the main zone (or with an all off), you'd need to get even fancier by using a relay with timer.
Something like the Elk 960 timer/relay would work for this:
http://www.elkproducts.com/products/elk-960.htm
The functionality would disconnect power to the A-Bus keypad for a couple seconds when the main zone is shut off and then restore it so the A-Bus sub zone could be turned on later with the main zone still off.
You'd have to duplicate this setup twice (once for each sub zone).
I don't think trying to do this via IR is a good idea... you'd have to get IR emitters at each A-Bus keypad and then devise some way to send the IR commands at the appropriate time. I don't know of a way to use the CAV to send these IR commands when a zone shuts off. You'd need a little controller like the Applied Digital Oceleot that could intercept the CAV's RS-232 command when a main zone is shut off and then output the A-Bus IR Off command which would then need to be routed to emitters located at the sub zone keypads. To control both sub zones independantly, you'd also need someway to route IR so that both aren't controlled at the same time (Oceleot doesn't do routing, but there's an add-on module that does).
Short answer... no EASY way to do this, but some work-arounds like mentioned above should work if you're competent enough with this kind of stuff to put it all together. I actually enjoy doing weird custom stuff like this.
Let your customer know that they can also issue an All On or All Off from any UNO-S1 or S2 by pressing and holding the power button... doesnt' need to be done at the TS2.
Cheers,
Paul
