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Thread: Difference - CM11, CM12 and CM15

  1. #1
    Automated Home Sr Member jaffab's Avatar
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    Default Difference - CM11, CM12 and CM15

    Hello All,

    Well, after a few weeks batteling, my X10 system is back up and running - and all my problems were down to the good (bad) old computer interface - the CM11U - which despite my making extra cooling holes, decided it no longer wanted to receive any X10 commands in until I had left it unplugged for 24 hours (no batteries in it since it was installed, so much have been a heat issue).

    Looking around, and from my own posts and replies from others, we all know that the CM11U is a load of old tosh. However, not willing to invest 450+ for a HomeVision control box (yes, it does all good things, but I just want to get and send X10 via the computer).

    So, can somebody explain what the differences are between the CM11U, CM12 and CM15pro.

    For instance, I believe that the CM15pro is much more stable. BUT, looking at the pictures, it does not have a plug - so how do the X10 signals get out? And is the CM15pro better at dealing with the heat/hang issues?

    Also, does the CM15pro work via serial, or just USB?

    Many thanks in advance

    Jaffa
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  2. #2
    Automated Home Lurker
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    The CM15Pro is the follow up of the CM11/12.
    It has new ActiveHomePro software and only a USB connection.
    It is also connected to the mains for PLC X-10.
    It has an RF antenna and can receive AND transmit X-10RF.

    You can also download your settings and use it standalone.

  3. #3
    Automated Home Sr Member jaffab's Avatar
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    Thanks. However, following your reply, I did some investigation on the CM15Pro, and it appears that whilst it has all the pros to suggest a purchase (does not overheat so much, much fast in sending/receiving signals than the CM11U, less likley to loose X10 signals), it has a big down side.

    Whilst most USB devices can be mapped to a COM port for communication via the serial-to-USB software, this does not allow it, so any software which only works with Serial communication will not work.

    My home brew works via the CM11A.ocx which opens a com port - and whilst the two devices would work by talking the same protocol, if I cant open the CM15 via a pseudo com port, it will not work for me.

    Can you (or anybody) confirm that this is the case?
    __________________________________________________ _______________________
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  4. #4
    Moderator toscal's Avatar
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    Yes it is a dedicated USB rather than a usb to serial converter like the cm11.
    I do know that x10 (as in the company) have released a software development kit for it this used to be free, but I don't know now.
    But you may be able to emulate a serial port try Googling for virtual serial ports or virtual USB ports or something along those lines. Also try this forum http://www.st.com/mcu/forums-cat-339-12.html
    IF YOU CAN'T FIX IT WITH A HAMMER, YOU'VE GOT AN ELECTRICAL PROBLEM.
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  5. #5
    Automated Home Jr Member
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    An old post, but... my two pence worth:

    I have been using the CM15 for a while now - about a year, and have had no heat problems at all - and the only time it was switched on/off was during power cuts.

    What I really like about it, is that you can have several applications access/monitor it at the same time.

    I have ActiveHome Pro running, some custop C' app, and a x10 monitoring app, and they all work happily together.

    I would definately recommend it!

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