The parking garage and airport systems would be tied together, not left separate.
Anyways, I’ll do mine from today after this.
The 49MCTV’s are TrueAlertES’s. The easiest way to identify the ES series is the little white or red bubble following the ‘TrueAlert’ lettering on the cover. By model number, anything with 49 (regular) or 59 (LED) followed by letters is the ES series.
The regular series is categorized by its 8 digit model number, for the pre-ES addressable and non-addressable (SmartSync) series is by default 4906-xxxx. A polling LED does NOT denote an ES device, which I recently discovered myself when examining the addressable speaker strobes (4906 series) at the Embassy Suites in downtown Denver.
I believe the 4100ES debuted along with the ES series of devices, which means it’s likely more common to probably see a 4100ES with TrueAlertES’s than a 4100U, but I do believe the 4100U (and ES) for that matter can be equipped with a special power supply to drive addressable 4906 devices and/or ES series devices.