Dual output via VE Direct from Victron solar MPPT Charger

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paul deacon

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Sep 15, 2025, 6:38:15 PMSep 15
to electrodacus
So I have been happily using the DSSR 50 for my main solar but as I want to utilize more than 14V panels for my solar deployable panels .   I have already purchased a 100/30 Victron MPPT with VE Direct.  Note I  am  fully aware of the pluses and minus of DSSR vs MPPT so no need to discuss this point and want to enjoy the benifit of both solar systems - but Ideally I want to integrate my monitoring if at all possible. As it seems shipping is no longer possible to states I cant take advantage of the PC device that Dacian you have listed either

I initially intended to plug the  the VE Direct non inverting remote on off into the DEXT16 but hoping there is a way to split it 

I see there is just a single output on the output side with the aforementioned DE direct cable  - what is that  TX  or +/ve?

1 - TX Only to my DEXT?  how would i wire a optocoupler for this?

2  Full 4 pin (+ve/-ve/TX/RX) to victron  cerbo 

I remote monitor my system  away form home very often 

I had read somewhere that you  can  "send TX ( transmitting) to two devices. but RX (receive) can only connect to one transmitter. so you can split the TX and GND to both RX. I did that in the past. an opto isolator is recommended."


Hope someone has done this?

Dacian Todea (electrodacus)

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Sep 15, 2025, 10:37:06 PMSep 15
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Paul,

I have the Victron BlueSolar MPPT 100/50 https://groups.google.com/g/electrodacus/c/cmLykQadmUk/m/rl5SOQPzAAAJ  and for that  I just need to short  pin 1(GND) and pin 2(RX)in order to turn OFF charging.
I used the inverted output of the DEXT but any normally close SSR should also work and I asumme that is what they are also using in the remote ON/OFF cable that Victron offers.

Unfortunately I can no longer ship to US at the moment but things could change.
If you want to use my PC device you can buy one of those Wyse3040 mini computers install Porteux v2.0 mate version and I can send you a zip module that you add to that installation witch will contain the software. 
But that is for local monitoring and data logging you will not be able to remotely see that data.
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