Remote Power Supply, Power-up/down- Elk

[pipeman]

I decided a separate power supply would be best for my garages, they're 250 feet away and I just didn't feel the cat5 power feed would be up to the task.
Everything seems fine, no data issues, but I am not sure how a proper power up or power down sequence should be handled.
I have a keypad, input module and output module.
Or if it even matters.

 

[Digger]

I decided a separate power supply would be best for my garages, they're 250 feet away and I just didn't feel the cat5 power feed would be up to the task.
Everything seems fine, no data issues, but I am not sure how a proper power up or power down sequence should be handled.
I have a keypad, input module and output module.
Or if it even matters.

If your remote power supply fails or the battery runs out when your system is armed you will most likely get a false alarm. Most zone expanders, motion detectors, and other burg devices will cause an alarm when power fails as it is considered to be a possible attack.

My opinion is to size your aux supply battery backup to exceed your system battery backup to minimize the chance of a false alarm.

 

[pipeman]

I used a 5AH battery for the garage, 8AH at the main control.
The AC in the garage should be stable, except that it is fed from a GFI circuit.
It is an inside circuit, but not far from a slop sink. I have seen them drop out for no apparent reason.
May be worthwhile to monitor the remote AC transformer.


No issues then with power sequencing during maintenance, etc?

 

[Digger]

I used a 5AH battery for the garage, 8AH at the main control.
The AC in the garage should be stable, except that it is fed from a GFI circuit.
It is an inside circuit, but not far from a slop sink. I have seen them drop out for no apparent reason.
May be worthwhile to monitor the remote AC transformer.


No issues then with power sequencing during maintenance, etc?

If you are armed and shut the power off in the garage you will probably cause a false alarm. if you are disarmed you will generate trouble conditions.

 

[pipeman]

I had also considered a relay (at the remote), powered from the main supply, to switch power at the remote.
If its the proper way to do it, I will.
If its not necessary, it would probably end up being a problem itself at some time.