You're going to have a real hard time hooking up the SD500-SDM to the 5208 since the 5208 is a conventional 10-zone panel and the module is for an addressable panel. You would be looking at the 5700, 5808, 5820XL, or any of the IFP series of panels. And yes, you are stuck replacing the devices. By the way, if these devices are so high in the air that it's a major expense to replace them, they may not be suitable for the space anyway. Smoke cools as it rises and, depending on the particulars for your site such as size of the open area and how hot the fire is and kind of fuel, etc, will start to stratify at 30+/- feet in the air. Better to use a beam detector in that case.Is there any properly listed "interface" device to be installed at the panel location, that could be utilitized to re-use 88 existing Simplex 2-wire smokes (1988 vintage) with a replacement HSN 5208 FACP? The existing Simplex 4000 series panel is no longer reliable nor economically serviceable so we want to change it out, but the vendor is telling me that all of the 88 smokes have to be replaced due to non-compatibility with the new panel. Many are in very high bays, and very expensive to replace.
As a state agency Project Manager I am required to be diligent in determining whether or not such replacements of currently working devices are, in fact, necessary. I am aware of the SD500-SDM device, but the compatibility list does not include Simplex-devices.