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Eliminate X10 Signal Collision Issues for Good
HomePro CR234 Amplified X10 Coupler Repeater w/ Repeated Signal Detection
HomePro CR234 Amplified X10 Coupler Repeater w/ Repeated Signal Detection
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Rear Panel
HomePro CR234 Amplified X10 Coupler Repeater with Repeated Signal Detection
Item# 4821AC
Free shipping on orders over $175 - See Details


  • Improves receive signal response, higher signal output
  • Mounts easily on a double-gang electrical box
  • Status LEDs visible on cover
  • Fuse protected

Essential Info

For large, complex X10 installations where it may be necessary to use more than one amplifier, this Amplified Coupler-Repeater can be set to ignore previously amplified and repeated signals and only repeat or amplify original X10 signals. This prevents signal collisions which reduce signal strength when multiple amplifiers are used. This Amplified Coupler-Repeater has DIP switches that enables you to customize their operation depending on the application. The beige-painted enclosure is designed to mount on a 4 11/16" x 4 11/16" (double-gang) electrical box. LEDs in the cover indicate programming and operational modes. Incoming signals as weak as 25mV can be detected and repeated on all phases of power. Use this Amplified Coupler-Repeater in installations where there are two 120V lines. This is called single-phase service or split-single phase service and is commonly found in single-family homes.


What's Included

  • 1x - HomePro Amplified X10 Coupler-Repeater with Repeated Signal Detection
  • 1x - Mechanical Connection Tri Barrier Terminal Block with Screw Clamp
  • Specifications


    Manufacturer Product No.:CR234
    Supply Voltage:120 VAC +/- 10% (Phase A to neutral)
    Fuses (field replaceable):Phase A: 5x20mm, 1.0A, 250V
    Phase B: 5x20mm, 500mA, 250V
    Signal Input:X-10 Powerline Carrier on any phase sensitive to 25 mV; Signal Carrying Conductor (SCC)
    Mechanical Connection Tri Barrier Terminal Block with Screw Clamp
    Wire Size Minimum:16 AWG
    Wire Strip Length:5/16"
    Operating Temperature:32º to 120ºF
    Operating Humidity:10% to 95% non-condensing

    Important notes:
    Defective exchanges for identical item within 30 days of purchase. After 30 days, please contact the manufacturer.
    Manufacturer contact information: Advanced Control Technology Inc, Tel: (317) 337-0100 Ext 236


    X10 Wireless Compatible  Rear Panel     
    X10 Wireless Compatible  Rear Panel     


    29 Ratings
    5 star: 59%  (17)
    4 star: 17%  (5)
    3 star: 0%  (0)
    2 star: 14%  (4)
    1 star: 10%  (3)
    Average Customer Rating
    (29 customer ratings)
    Share your thoughts with other customers
    MARK -- fort collins, CO   1/18/2014
    Installed easily and works well.
    DOUG -- carlsbad, CA   7/20/2013
    Did the trick! Replaced a Leviton coupler repeater that quit working after several years. Everything is working again flawlessly.
    WILLIAM H -- prince george, BC   6/17/2013
    I installed the unit a few weeks ago and it is working perfectly. It mounts on a 4 11/16 box just like the instructions say. Now I just hope it lasts.
    THOMAS -- harbor city, CA   3/14/2013
    Resolved my problem of intermittent communications aith some devices. Works everytime without any missed commands.
    KIM -- shoreline, WA   2/9/2013
    When the XPCR Couplers I purchased failed I decided to try the CR234 even though it was more expensive. It worked immediately and my signals that cross over to the other bus work every time. Great, dependable product. The electrical box that fit it was a challenge to find (take the CR234 to the store with you) and it only fits one type.
    BERNARD -- maplewood, MN   12/15/2012
    It is easy to install. The visible status of X-10 traffic and the error detection are very useful functions. Many customizible options for operation. It solved my prolems.
    DAVID -- greentown, IN   11/18/2012
    Does a good job. I like the lights that lets you know it is working.
    MICHAEL -- valparaiso, IN   11/1/2012
    The best X10 coupler repeater on the market
    MICHAEL -- plano, TX   4/30/2012
    The item shipped and was received quickly. I had a question, and it was answered promptly. The product replaces an existing coupler. This one I can see the signal being detected. It really helps in trouble shooting.
    BERNARD -- maplewood, MN   1/6/2012
    Really solved my problem! Wonderful to have the leds displaying what it detects and transmits.
    Joel Turcotte -- ontario, Canada   7/7/2011
    Tried to make this work forever but I have now finally given up. Was never able to get it to work perfectly. There are long random streaks when all this thing does is detect errors and lock up: no matter what the settings. I've also updated my setup, upgraded the wiring, put filters on troublesome appliances.. nothing works. I used to have another coupler on my dryer plug that worked much better than this. It got fried so I had to replace it and ended up buying this product... I'm very disappointed and can do nothing but strongly discourage buying this coupler/repeater.
    HERBERT -- chicago, IL   5/12/2011
    I haven't installed this unit yet as I had to contact the manufacturer to answer a question I had, but this is the second coupler/repeater I have from that manufacturer, and I expect it will perform as well as the first one.
    dublin00 -- dublin, CA   4/20/2011
    Quality control may not be that good. Purchased a new unit and after 5 months it has burned out.
    GREG -- highlands ranch, CO   11/16/2010
    Worked better than my Leviton coupler repeater but this 'Homepro' device does not fit into a standard box. It's temporarily nailed to the rafters in my basement. It HAS helped my X10 system work better. It just needs to fit into something to be permanenly mounted.
    JB -- grayslake, IL   3/6/2010
    Replaced a HCA02 that seemed to have "died". I'm getting better responses from some X/10 modules that were "ify" previously. Overall pleased. Fast delivery too!
    ALLAN -- farmington, MI   12/25/2009
    After having a disappointing meltdown of the model CR-230 after only 2 years, I decided to try the CR-234. So far, it performs very well and has superior features.
    RICHARD -- college grove, TN   12/23/2009
    Remarkably dissapointing product. Prior to installation, system was 80% reliable. Afterward, system was pretty much ZERO. Tried all possible settings. Returned product for refund. Passive coupler works much better. May try the Smarthome coupler/repeater to see if it works better.
    THOMAS -- palisade, CO   10/15/2009
    Very please with this product. Increased X10 signal strength from 500 mV to over 3.5 volts. Also boosted signal in a remote building over 300 away from the repeater. I would definitely recommend this unit.
    RICHARD -- berkeley, CA   1/12/2009
    Does exactly what is says it will do. But, expensive and I still have some odd problems with X10 in the house, but they may not be because of the coupler.
    MICHAEL -- colgate, WI   1/28/2008
    This is the 6th or 7th active repeater I have installed. While it works for the most part I am now having random lights turning on. My Homeseer has no record in the log of the x10 command for the light that went on so at this point it appears to me the repeater is sending garbled messages at times. I'm fed up with the over 100 x-10 devices in my house. I plan to experiment with zwave in the future to see it it makes sence to junk all the x10.

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