Interconnecting (two) Lynx Distributor modules

DIY
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1

Hello everyone,

I’m designing an ESS system that will use two Lynx Distributor modules (don’t ask why). I won’t be using any other Lynx component. My questions as I can’t yet test a system that exists only on paper:

  1. Combining just two Lynx Distributors, without the other Lynx modules shouldn’t be a problem. Correct?
  2. All the two distributors will have fuses on all connections: Do I need USB power to both modules or to just one. If only 1 power connection, to which one? Right, left or any?
  3. I plan to power the Lynx Distributor LEDs via a GX hack floating around. I could use grid USB power but that is unreliable. However, using the GX will create a circular situation. When the GX has no DC power from Lynx, it will have no USB power to feed back to the Lynx. This is not ideal but it is OK. Will it work?
  4. My equipment will be connected in this order, left to right, following guidance from Wiring Unlimited: battery 1, battery 2, MPPT 1, battery 3, battery 4, MPPT 2, Quattro, GX. BUT: The Lynx manual says all batteries should be to the left and everything else to the right IF you want to monitor the fuses with a shunt or Victron BMS. I will have neither shunt nor Victron BMS as my managed batteries will have BMS built in. I only need to monitor the fuses via LEDs on the two Lynx modules. Which recommendation takes priority?

Thanks

2
  1. No problem
  2. The RJ10 daisy chains to next distributor
  3. Should be fine
  4. Go with your first config with mppt interleaved with battery. I would probably do batt 1, mppt1, batt2, quattro, batt3, mppt2, batt4. Personally I use lynx shunt so I have all my scc to the right, then inverter takes what it needs, then shunt and batteries.
3

@Fideri

Use this software and documentation:

4

@Fideri I wired 3 of mine from one 5volt plug they light up as it should just daisy chain, I’ve not ventured with the other hack @BjoernK for me it’s in the too difficult box lol, I’ll have to wait until @guystewart and @mpvader (Victron team) bring out the interface that this can talk directly to the GX

5

@Daza

I bought this small PCB, a resistor and the RJ11 cable. Soldered it and flashed according to doc linked.

1pcs mcu ft232h Multifunktions-Hochgeschwindigkeits-USB zu jtag uart/fifo spi/i2c-Modul

https://a.aliexpress.com/_Ev6pCaw

IMG_9887
IMG_98871920×1440 186 KB

6

Yeah you gave me it last time but just can’t bring myself to do it bit lazy adding to the install unless something new pops up then I’ll just back on adding to the system

7

Very clear, thanks.

8

Very interesting. I might try it.

9

Simple enough. I will do the same.