Perhaps not 100% but I would expect that you'd see a satisfying improvement.
Satisfying would be when all the signals go through 100% of the time, and I don't believe that alone would get me there.
I would leave the 4826A in place as a bridge unless it caused problems.
I don't think it's causing problems, but it might not be helping.
The XTBR would be located next to the CM11A or whatever is your primary source of signals.
The CM17A is now my primary source of signals, but those are now RF, and the XTBR doesn't help those. The PLC signal sources are from transceivers, which are in multiple locations.
I have two CM11A, but neither is reliable. They lock up frequently and when they do, no PLC commands go through at all for periods of multiple minutes or longer. I believe the lockup issue is a known bug with the CM11A, unfortunately. I have seen the lockup problem with multiple programs - HomeGenie, HomeSeer, HomeAssistant, so I'm fairly confident it's a hardware issue. But even without that bug, noise/signal suckers still gets in the way. At this point, I'm using the CM11A only to receive signals, not send them, and I don't have any automation that depends on receiving signals,
it's just to update the device state in Home Assistant. It might be interesting to experiment with that and see if that works, though. I don't know if the CM11A locks up only on sending signals or also on receiving them.
Leaving the 4826A in place provides a path for that stronger signal to reach the other 120 leg.
I thought both the 4826A and XTBR were repeaters. If they are both repeating, won't that call signal loops ?
Are you saying they can be used together without issue ? Of course, if one isn't repeating at all (as my 4826A might not be), then there is no problem, but that would be the same as just using one.
Before the game changing XTB-IIR was offered I first used the XTB (older version of XTBR) along with a 4826A in an 8500sf house that had dozens of Leviton branded X10 wall switches and just about every other type of X10 module in existence. While not perfect, the XTB made a substantial improvement in signal reliability. You might ask Jeff if he accepts returns if it doesn't help.
Thanks, this is helpful information. I see that the XTBR is available on Amazon, and I believe that automatically gets a 30-day return policy. Not certain if this is something I want to mess around with yet, though.
Ideally, you'd install an XTB-IIR but they are no longer available unless one pops up on ebay. If you did find one - or wanted to try the XPCR or another 240v repeater - you would not have to hire an electrician to install it. Although wiring it at the panel is best, you could also buy a dryer plug and attach the wires to it as a replacement for the 4826A.
The FAQ from
http://jvde.us/xtb/xtb_faq.htm about the XTB-IIR says this :
Can the XTB-II/R be connected to a 240V dryer outlet? Yes it can, especially if the dryer outlet is relatively close to the main distribution panel. However, the conductors in a standard dryer cable are too heavy to connect to the internal terminal strip. Three or four conductor 16 or 18 gauge 300V power cable can be wired to a separate dryer plug that can be purchased at a home building center or an electrical supply store. Be sure to purchase a plug whose prong alignment matches your receptacle. If the dryer outlet is a long run from the main distribution panel, it would be better to try to locate the XTB-II/R closer to the panel.
Unfortunately, my dryer outlet is on the end of the house opposite the main panel.
It seems like I would still have to mess around with it (receptacle, box) a little to connect it to a 240V dryer outlet, also.
To identify circuits in your home a $30 circuit finder (amzn.to/35Aovjf) is a very valuable tool and requires no skill or wiring to use.
Thanks, this looks like a great tool indeed, and I'm going to put it on my shopping list. Given the number of outlets, breakers, and panels, it could take a very long time to map everything, though. There are likely over 100 outlets and 40 breakers between 3 panels at 2 locations very far apart from each other - the house is an addition. Many breakers should be dedicated for certain appliances and could be eliminated from testing. Still, that's a lot of walking around and time to spend. I guess I can use the exercise, though, so maybe it can be of help.
The manual for the ET300 doesn't mention anything about phases, though, just breakers. Not sure how I would be able to tell that without opening the electrical panels. I have wanted to know the map for outlets not just for X10 signals, but to avoid overloading circuits. I have not had any breakers trip, but I have seen voltage drops on a couple of occasions. Some could be from my utility, but one time it was my husband using power tools upstairs on the balcony, it caused the voltage drop at one of the two UPSes in my office downstairs down to 60V on the front display. BTW, the Kasa KP125 Wifi smartplugs I bought recently have voltage sensors, and I'm going to setup automations in HomeAssistant to notify me when issues of this sort happen.
I was hoping for a tester along the lines of plugging 2 (or possibly more, if nearby) outlets, and it tells you if they are on both the same circuit and/or breaker, but I guess that can't be done with any degree of certainty. If there is a GFCI, it is easy to tell by just tripping it with an outlet tester and seeing which other outlets/devices lose power, but most circuits outside bathrooms, kitchen and garage don't have GFCIs, so that doesn't work. And I don't think any of the breakers are GFCI breakers. At least, none have ever tripped from using the outlet tester. So, the outlet tester GFCI button only helps determines which outlets are on the same branch, but not the specific breaker, and not the phase.
Most importantly, any version of an X10 signal tester would be a wonderful investment. They're as hard to find as hen's teeth now but I'd be willing to loan you a basic one - and an XTB as well - for the cost of postage and a refundable deposit. PM me if you're interested.
Thanks for the offer. I know those things are very rare now - I haven't seen any for sale on ebay. A loaner would help a lot in the short term, but in the long term, plug-in devices come and go, and I would likely need to test again when I start running into problems from new devices.
I received the second RR501 earlier today - also old revision, almond color on all sides. I set it up on house code D and plugged it in to an outlet in my downstairs utility room. The circulation pump is on an XPS4 set to code D1. I set HomeAssistant to start it every 12 minutes, then stop it after 1 minute. The automation hasn't been reliable, unfortunately. I was watching TV in my home theater, which is adjacent to the utility room. I didn't hear the loud relay at the bottom of the RR501 turn on and off 10 times an hour. The volume was loud, and there are 15 speakers in the HT including 4 subs. Still, I did hear the relay a few times. One thing that I saw also is a case where the pump was turned on, but not off.
I don't know yet if it's an RF problem (signal from CM17A not reaching the transceiver reliably) or a PLC problem. It could be either, or both.
There is a lot of stuff going in that utility room - two electrical panels, one water heater, one furnace, and ceiling light. Everything is hardwired except for the plug-in RR501. I'm going to swap transceivers (RTM75, HC50RX) and see if things improve - some might have more RF reach than the others.
I could also tell HomeAssistant to send multiple X10 on/off commands and see if that helps reliability. I'm not certain if it will ignore multiple commands of the same state (eg. 3 consecutive ON commands, 3 consecutive OFF commands). There is no way to do that manually from the HTTP interface or app. Switch state can only be toggled. So, I have to modify the automation and see if I get a better success rate.
If I get one of the transceivers to work reliably enough to control the pump, I will change the unit code on the XPS4 switch controlling it to something other than 1 (or 9), so I don't have to hear the relay for the outlet at the bottom of the transceiver when toggling the pump. Besides the annoying noise that can be heard across rooms even with the door closed, those relays have to have a limited lifespan in terms of actuations. Is there any info on that ? Same question for the relays in the XPS3 and much quieter XPS4 relay.
Since there is no issue of matching switch colors in that utility room with the rest of the house (it's not a place where anyone normally goes), this seems like a case where it may make more sense to replace the XPS4 in that room with a $15 white Kasa HS200 Wifi switch. I haven't seen any issue toggling the Kasa smartplug state from HomeAssistant not getting executed. I did have issues with automations that depend on sensor states, for example the power consumption sensor, not getting triggered, to notify me when my clothes/dishes/etc are done, or automatically turn my multi-channel amps off when power consumption flattens, indicating nothing is playing.