Unless it were possible to specifically interrupt the trigger for an alarm without cutting off all input to the speakers - I'm sure that would be much more difficult, since I assume that function is probably handled by ICs.
You may be thinking of "alarm" as the sound (siren) itself. In the context of the DS7000, when it goes into "alarm" mode, it does a few things, among which are: 1) sends nonstop on/off commands (for a few mins) to all units registered to its house code, 2) dials pre-programmed numbers and plays recorded message, 3) sounds its own siren, 4) lights up the zone light on its to show where the trigger came from.
For example, if the "house code" is set to C on the DS7000, all lights controlled by wall switches, floodlights, lamp modules, etc. will receive an "On/Off" sequence if they too are set to house code C. As a result, all these lights will flash or dim low/bright depending on their type. Note that it's not limited to "security lights". That's one advantage to having external floodlights set to the same house code as the DS7000. People will see them flashing from a distance. The same applies to remote sirens. The on/off command sequence will have them blasting for 4 mins. You can share house/unit code with powerhorns also. In my case, I have 7 of them distributed around the house all using the same house/unit code (e.g, C:16)
On a related topic - not clear about the house and unit code setting on the DS7000 and the house code on the remote: the 4 switches for additional lights seem to be fixed to units 1-4, so I assume the unit code setting is specifically for whatever you want triggered when there is an alarm condition, ie the Security Light.
The house code on the DS7000 is the "umbrella" code that all lights/devices controlled by the DS7000 need to be on, but each needs to have its own (or shared) unit code (1-16) depending on its location or function. The unit code on the DS7000 is what's called "security lights", which would either blink on/off or stay on depending on what triggers them. If you press "lights on" on your keychain remote, the "security" lights will go on through the DS7000.
If you use your "large" remote and press the "security light" switch on, the DS7000 would turn all lights registered to the House code/unit code on its panel. NOTE: you can have multiple lights with the house code/unit code.
In my case, I have three lamp modules as the "security lights". 1 is in the garage, 1 in the room that connects to the garage, and a 3rd one in the living room in case I come through the front door. As soon as I open the garage door that leads into the house, all 3 lights go on. As I leave and activate the alarm, all 3 lights go on. The one in the garage serves 2 purposes - 1) tells me that the alarm is on as I leave (can't hear the DS7000 from garage), 2) tells me if alarm was tripped BEFORE I go into the house (DS7000 doesn't turn off lights after it's triggered.)
So if I'm understanding this, you can use any code EXCEPT unit 1-4 for the security alert address (siren and/or light), and both the alert and the optional additional lights have to be on same House code (?). In addition, since the larger remote has only house code, and the little remotes have no codes at all, I assume the addresses have nothing to do with security functions of the remotes - only lights. And the larger remote has only House code, not unit, because it turns on lights through the DS7000, not directly by itself. Did I get all this right?
The unit code for the security lights can be any number from 1-16, including the first 1-4 on the remote. It just means you'd be able to turn them on/off with the remote by using two buttons if you use the first 4. You'd be wasting one button though.
Neither remote turns on lights by itself. They go through the DS7000, AHP, or possibly a transceiver.
Finally - if you use an external siren - do you put in the same House and Unit code as the security light? And if so, does that mean if you use the remote to turn on the security light, you'll also trigger the siren?
Thanks again,
Michael
You'd want the external siren to be a separate unit code, but on the same house code. Note that for the "powerhorns" to work, they need to receive multiple on/off commands to avoid a scenario like what you mention, but if you do press on/off multiple times, you'd definitely be able to turn them on.