I'm an Indigo 4 user, and I know I can only use one X10 interface at a time with this version. However, from what I read on the Indigo site about interfaces, Indigo can use multiple interfaces, and doesn't say anything about there being exclusions of one per protocol.
Here's the problem: My CM15A is, on the powerline side of things, pretty much toast. For the past 5+ years, it has "sort of" worked. When my AC units are running on the roof, it's almost impossible to expect anything X10 to be controlled by it. In fact, prior to the AC even being installed, I had a hard time getting X10 devices functioning on the other phase of my home power, even with a phase coupler, until I got an XTBR repeater. More power, and things worked... mostly.
Now, with the AC units turned on, as I said, it's like pulling teeth to get X10 devices to work. I even installed XPF filters into each AC unit on the roof since I figured it was electrical noise generated by these which caused my problems, but that didn't help at all. $245 wasted there.
Today, I decided to dig deeper. I dug so deep that I pulled out an old CM11A, hooked up a USB-Serial port device, changed Indigo 4 to use my CM11A instead of the CM15A, and EVERYTHING works... no phase coupler, no XTBR repeater... with the ACs all running. No more issues.
Here's the problem: I have some RF remotes and devices that I still want to use. I CAN use an RF to powerline interface, either a TM-751 or RR-501, but the delay is AWFUL. The CM15A is instantaneous from pressing the button to see the log record the button press.
So, what I would like to do: Use the CM11A to send the X10 powerline signals, since that works, and use the CM15A for RF only. I mean, I have the CM15A, that part of it works perfectly, and I'd rather not fork over another $100 in hardware when money doesn't grow on trees.
Therefore, two related questions:
1. Can both a CM11A and a CM15A be configured in Indigo at the same time, and
2. Can the CM15A be disabled from sending powerline commands?
If so, I very well may upgrade so I can also upgrade my Mac OS (currently at 10.7) to El Capitan... if it's supported with the latest version of Indigo.
Mike