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 Posted: Sunday Aug 23rd, 2015 08:51 am
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bagushandhoko
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I am using 3 SEM complete with 4 LEM, i plan use sensors and devices third party connected to the output about more than 20 : microwave sensor, selenoid valve, relays, IR Fence beams..
1. Its possible to power all devices connected to comfort that need  external power by powering them from  12V / S12V port , isnt it ?
2. I read about this port only powering maximum 1 amp for all devices connected to controller or SEM ..This is limitation for one SEM or for all devices connected ?

Last edited on Sunday Aug 23rd, 2015 12:04 pm by



 Posted: Sunday Aug 23rd, 2015 12:06 pm
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tech07
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I am using 3 SEM complete with 4 LEM, i plan use sensors and devices third party connected to the output about more than 20 : microwave sensor, selenoid valve, relays, IR Fence beams.. 1. Its possible to power all devices connected to comfort that need  external power by powering them from  12V / S12V port , isnt it ?
Yes. Power from 12V S12V can be switched off and on by response so be careful
2. I read about this port only powering maximum 1 amp for all devices connected to controller or SEM ..This is limitation for one SEM or for all devices connected ?
Eacch comfort and SEM can supply 1 AIf you have Comfort and 5 SEM then it can supply 6 Amps

Last edited on Sunday Aug 23rd, 2015 12:07 pm by tech07



 Posted: Sunday Aug 23rd, 2015 02:36 pm
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bagushandhoko
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Thanks



 Posted: Saturday Aug 29th, 2015 08:53 am
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Swiss-Toni
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Sound like you are looking at adding a lot of 12v equipment.Why not get a seperate 12V supply and reduce the risk of drawing to much power away from comfort, here is a link that should give you an idea of what to get. http://www.ebay.co.uk/itm/9-Way-Port-10A-12V-CCTV-PSU-Power-Supply-Cabinet-Box-for-Camera-System-Kit-/111562346870?hash=item19f9a25176 Depending on your requirements you can get different panels with more or less terminals and also idfferent amp output ratings. You can also get rack mounted 12v psu (these tend to be extremeley expensive though)

Last edited on Saturday Aug 29th, 2015 06:43 pm by Swiss-Toni



 Posted: Sunday Aug 30th, 2015 01:42 am
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slychiu
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If alarm sensors are to be powered by external 12V, these should also be battery backed up
Comfort will report power failure and low battery on its own power as well as its slaves, which is more convenient



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