Nah , wireless sensor unlikely to affect others
Is system battery good?
And you sure the window sensor is still registered to the system , reinstall it
Why can't you just have another unit to talk back from near the DVR ? You want record the convo I assume aswell? Just split the mic
I may be way off what I understood of your question tho.....
You may have two companies in one building three groups
Common - only sets of conditions met
Floor one - set by first company , also sets common only if floor two is set
Floor two - set by second company, also sets common only if floor one is set
That's one way of doing it, others will correct me if I am wrong
Dudes anything you can recommend cheap and cheerful is the word , have a customer with some weird NVR that supports onvif so looking for a small ptz that will work via onvif , or you think that will be a mare? Chinese will do if you know is it works .....
Personally , I am a professional house basher , so I got mad lab setup at home and try everything before going out
I havnt used these , but I guessing I prefer the texecom version , more striaghten forward
Regarding the terminal if it's just short then no , if there's electronics involved then maybe
What about the jumpers have you set them right?