This seems like it should be easy, but I've struggled with it for awhile. I have two sets of MX-850 remotes + MRF-260 RF base stations which are used to control two different sets of AVR+STB. All equipment sits in the same closet, and occasionally I have a problem where MX-850 #1 interacts with STB #2, and MX-850 #2 interacts with STB #1. Currently, the IR emitters connect from MRF-260 base station (3.5mm mono plug) to the IR receive window of the STB (stick-on IR emitter).
To prevent the "interference", what I would like to do is connect directly from MRF-260 to the "IR Remote Input" of the STB. However, I can't get this to work with the Motorola QIP7216 and QIP7232 (FIOS) STBs. (I do have it working with MRF-260 output connected directly to Onkyo TX-SR706.)
Here's what I believe:
MRF-260 output = 3.5 mm jack, mono (TIP=data, SLEEVE=ground)
QIP7216/QIP6232 input = 3.5 mm jack, stereo (TIP=5V, RING=data, SLEEVE=ground)
So I took a cable with 3.5 mm stereo jack -to- RCA connecters (LEFT and RIGHT), connected an RCA-female -to- 3.5 mm male mono adapter to the RCA RIGHT channel (RIGHT is RING I believe), and then connected this cable between MRF-260 and STB. But it didn't work.
Any ideas how to solve this issue? Everything I've read on the FIOS forums tell me the IR Remote Inputs are enabled and function normally when used with FIOS/Mot IR receiver extenders. But I'd rather not get those and go electrical-to-IRtx-to-IRrx-to electrical to get this to work.
Any help or suggestions would be appreciated.