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Topic:
Can't daisy-chain more than four MRF-350 together?
This thread has 9 replies. Displaying all posts.
Post 1 made on Monday January 1, 2024 at 17:13
CZ Eddie
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I need five MRF-350 daisy chained for all my components.
I can get four of them working great.
But as soon as I add a fifth, the fourth one won't pass any single on to the fifth one.
The fifth MRF-350 doesn't have any blinking on the front display either.

I've swapped out the MRF-350 with a spare and it didn't make any difference.

Each is set for RF ID's 1 through 5.
OP | Post 2 made on Tuesday January 2, 2024 at 16:54
CZ Eddie
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Can anyone confirm whether I should be able to have more than four MRF-350 daisy-chained together?
Post 3 made on Tuesday January 2, 2024 at 17:24
Brad Humphrey
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If you are talking about plugging the "RF Out" into the "RF In" of the next MRF-350. And continuing this in a daisy chain to another, then another....

The instructions clearly say you can only do this for "3" units. No more. The fact you got 4 working is beyond what they say to do already.
OP | Post 4 made on Tuesday January 2, 2024 at 17:51
CZ Eddie
Long Time Member
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Hi Brad, yes exactly - the RF out going to the RF in on the next MRF-350.

Regarding the limit, are you thinking of the RFX-250? The manual indicates a limit of three for those (page 5). I'm not finding a similar limit mentioned for the MRF-350 though.

Link to manual:
[Link: content.abt.com]
Post 5 made on Tuesday January 2, 2024 at 18:27
Brad Humphrey
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It's the same thing for the base stations.
It even has a picture at the bottom of page 5, showing daisy chaining the MRF-350 with the supplied cables ("no more than 3 MRF-350 in a daisy chain").
OP | Post 6 made on Tuesday January 2, 2024 at 18:44
CZ Eddie
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I finally see that, thank you.
Post 7 made on Tuesday January 2, 2024 at 19:19
Brad Humphrey
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I have to ask.... why are you needing 5 MRF-350's daisy chained?

Scenario 1 = you have 5 different locations. Then just attached the RFX-250 antenna to each one.

Scenario 2 = you have over 25+ devices to control in one location. You can take the IR output of each port and run an IR connecting block from that. Allowing for potentially 30+ devices to be run off of 1 MRF-350.

The only scenario I can think of, where you would need 5 MRF-350's = If you had 25+ devices that all respond to the same IR commands and so needed to be each addressable on separate ports.
OP | Post 8 made on Wednesday January 3, 2024 at 10:06
CZ Eddie
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I've got equipment in three different locations.
Two of the locations have multiple IR requirements, such as six-zone audio volumes.

I had wanted the MRF's daisy chained so that my primary remote could control all locations. I didn't think the remote could connect to two different RFX-250's. I'll give that a try, thanks!

I'm not familiar with your Scenario 2 "IR connecting block".
I'll research that to see if it would help.

Thank you!
Post 9 made on Wednesday January 3, 2024 at 11:33
Brad Humphrey
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On January 3, 2024 at 10:06, CZ Eddie said...
I didn't think the remote could connect to two different RFX-250's. I'll give that a try, thanks!

I'm not familiar with your Scenario 2 "IR connecting block".

The base stations would have to be on the same RF channel. Which shouldn't be a problem as long as you don't have duplicate devices that respond to the same IR codes. If you do, you can still sort them out across different IR ports on each base station, as long as you don't have more than 6 duplicate devices using the same IR codes.

"IR connecting block" is just a fancy IR splitter. It has 1 IR input and anywhere from 2-10 IR outputs. The most common are 4 or 6 IR outputs.
You also can get dual head or even triple or quad head IR emitters to expand how many devices to control from each port.
OP | Post 10 made on Wednesday January 3, 2024 at 15:42
CZ Eddie
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That's a great tip!

I imagine it's no different than using the "All Ports" option in RF setup.
Just need to watch out for one device interfering with another.
And if it doesn't, then you're good to go.


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