M1XEP - Connect to Elk M1?

rayzor

Member
Is it possible to connect the M1XEP directly to the control board the Elk M1 in order to provide power? I want to keep the XEP inside of the enclosure, but I am out of outlets (and they arent UPS backed anyway).
 
The M1XEP runs off of 12V DC, so yes, you could power it from the M1's AUX power outputs.  But the XEP requires 300 mA, which is a substantial fraction of the 1A the AUX power outputs can provide.   So it won't leave a great deal of power for other things, such as keypads, zone expanders, etc.
 
Is there a way to find out how much power the M1 is using to see if it has spare?
 
I have 1 GE wireless zone expander and the keypad. Of course I am never sure what else I will add onto it :)
 
I recall reading that there is a way to read the power that the M1 is drawing if you have 2 keypads.  But you need to put the system into full alarm mode and have everything active at once. You can also measure the power that the M1 is drawing with a multimeter connected between the M1 and the battery while the AC power wall wart is unplugged.  But in both cases, the readings you get will not necessarily be an absolute worst case number, which is what you really need to worry about.
 
Elk provides a power calculation spreadsheet on their website.  That's really the best way to figure out your power draw.
 
Don't forget to include wired motion detectors, glass break detectors and smoke detectors if you have them as part of your system.
 
[Edit]:
 
The current being used by the system can be displayed on the keypad from the System Diagnostics menu, keypad option 86.
 
RAL said:
I recall reading that there is a way to read the power that the M1 is drawing if you have 2 keypads.  But you need to put the system into full alarm mode and have everything active at once. You can also measure the power that the M1 is drawing with a multimeter connected between the M1 and the battery while the AC power wall wart is unplugged.  But in both cases, the readings you get will not necessarily be an absolute worst case number, which is what you really need to worry about.
 
Elk provides a power calculation spreadsheet on their website.  That's really the best way to figure out your power draw.
 
Don't forget to include wired motion detectors, glass break detectors and smoke detectors if you have them as part of your system.
 
[Edit]:
 
The current being used by the system can be displayed on the keypad from the System Diagnostics menu, keypad option 86.
Thanks!
 
Keep in mind that you also need your IP gateway, router and any ethernet switches to stay powered up in an outage or you will lose connectivity.
 
I just installed a new M1 system and ran a dedicated 120 volt 15 amp AC line to the attached outlet control box. Now I'm thinking about putting  a UPS in the basement supplying that line so that anything that I plug into the outlet is backed up including the control, the XEP my IP gateway. and an ethernet switch.
 
Mike.
 
The current being used by the system isn't a real guideline for much. You need to size the UPS for both standby and alarm conditions....the backup battery and power supply for the panel would need to be calculated for the worst possible condition: full alarm.
 
mikefamig said:
Keep in mind that you also need your IP gateway, router and any ethernet switches to stay powered up in an outage or you will lose connectivity.
 
I just installed a new M1 system and ran a dedicated 120 volt 15 amp AC line to the attached outlet control box. Now I'm thinking about putting  a UPS in the basement supplying that line so that anything that I plug into the outlet is backed up including the control, the XEP my IP gateway. and an ethernet switch.
 
Mike.
 
I have a UPS that sits right outside of the enclosure which is locked. I just decided to get a powerbridge (in wall extension cord fire rated) and that way I can plug a couple of things into my UPS as well. Then if I feel there is never enough battery backup power, I can just upgrade the UPS.
 
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