Daft as it is this showed up in another search.
Must will be loads of keypads not operating correctly, who would of thought a non serviced bit of kit would not work perfectly after 20 or so years.
Seen this on ifsec site
https://www.ifsecglobal.com/global/thermal-imaging-coronavirus-crisis/
do we think that cctv can be of any use in this? If so is it just for the next few months when its gonna be difficult to install?
No I didnt lol.
I assumed (maybe incorrectly) you had external devices connected to the contact transmitter. If so its those id link out with a bit of wire. Maybe a photo of the unit its decades since ive seen one
IIRC they are seperate it wouldnt surprise me if each one was 800 or 400mA But you will have additional 12v connections other than hold off for example if you want to balance the loads
Polling is where a path (say ethernet or 4g) is polled every x seconds/minutes to check the path is actually available to deliver alarm events. The comms device sends a signal that is acknowledged and responding to. After x no of failures and event is reporting to the monitoring station of a total polling loss. This is then reported to the monitoring station as a total comms lost and is reported to the police if armed(on URN systems)