New building we bought had a 4010 panel in the telephone room and some small expansion panel in a second floor closet.
Total number of sensors is:
(6) motion sensors (5 are IR, 1 is IR/Microwave combo unit) (2) entry/exit doors (2) seldom used/emergency doors (2) heat sensors (2) horns (2) keypads
First thing we did was check the internet for instructions on how to reset the 4010 to it's factory master and installer codes. We did that, and downloaded pages and pages of manuals and work-sheets for the thing, and then thought this was crazy. We found a spare 1550 unit (with keypad) sitting in a storage room, and we ripped out our own 1550 from our old building before we left.
So I ripped out the 4010 and the expansion panel and re-wired everything:
Zone 1: Main door Zone 2: Secondary door Zone 3: 3 motion sensors wired in series Zone 4: 3 motion sensors wired in series Zone 5: 2 seldom used/emerg exit doors wired in series Zone 6: not used (might hook one of the heat sensors to it)
Replaced the two 1410 keypads with the two 1550 ones. Hooked up only
1 horn. ->Didn't have to run any new wire Like trading in a Cadillac for a ChevettePractically speaking - not really.
The 1410 was over-kill (for us, for this building) although I suspect that a "professional" alarm installer would not agree.
It's been my experience that installers seem to insist that every sensor be connected to it's own separate zone. The bigger the building, the more zones, the deeper the pockets of the customer, the bigger the panel, the more $$$ the installer makes.