Please login or register.

Login with username, password and session length
Advanced search  

News:

The X10Hub (PiX10Hub) is here! Created by the Community, for the Community.:)% #:)

Author Topic: CM15A EPROM  (Read 1700 times)

racerfern

  • Hero Member
  • *****
  • Helpful Post Rating: 5
  • Posts: 257
CM15A EPROM
« on: December 15, 2015, 02:15:04 PM »

How long does it take the CM15A to lose its memory once it is unplugged and the batteries are out?

I ask because for example the SC1200 holds memory for quite a while after total disconnect. It might be upwards of an hour. I am able to tell because the PIN holds and the sensors are still paired even though it appears they are not.

So my interest is in the CM15A since there is no way to read anything on it as far as I can tell.

Thanks!
Logged

Brian H

  • Community Organizer
  • Hero Member
  • ***
  • Helpful Post Rating: 288
  • Posts: 12664
Re: CM15A EPROM
« Reply #1 on: December 15, 2015, 03:19:35 PM »

The SC1200 has an EEPROM in it and the information is not lost with power loss. It will stay there until changed or erased.
We had an owner of the Radio Shack 49-1000 version of the SC1200. It had the original owners new PIN number in it as it was a return to the store.

The CM15A has a small 24C65 EEPROM in it but I don't know what is stored in it and what is lost when there is no power.

« Last Edit: December 15, 2015, 03:25:45 PM by Brian H »
Logged

dave w

  • Community Organizer
  • Hero Member
  • ***
  • Helpful Post Rating: 136
  • Posts: 5955
Re: CM15A EPROM
« Reply #2 on: December 15, 2015, 05:36:39 PM »

How long does it take the CM15A to lose its memory once it is unplugged and the batteries are out?
I believe the CM15A batteries only power the clock. Nothing is lost.
Logged
"This aftershave makes me look fat"
 

X10.com | About X10 | X10 Security Systems | Cameras| Package Deals
© Copyright 2014-2016 X10.com All rights reserved.