[LMA1] Modbus RTU Generic Adapter
NEW PRODUCT - REPLACES LMG
WILL BE AVAILABLE AS FROM MID JUNE 2025
Description
High quality RJ45 (male) to 3-screw connector.
Part of set LMGS+LMA1 for direct serial connection of the inverter to the FlexiObox.
Always to be used in combination with LMGS “Black Dongle”.
Use this adapter with a LMGS “Black Dongle” for setting up a customized Modbus RTU wired 3-screws connection.
From the top view:
left screw | center screw | right screw |
---|---|---|
Data A (+) | Data B (-) | GND (ground - shielding) |
Product images

Related products
Installation instructions
Use the LMA1 adapter together with LMGS “Black Dongle”.
Disconnect the 3-screw terminal part from the LMA1 adapter.
Connect Data A (+) and Data B (-) respectively to the left and middle screw.
If the inverter cable has shielding (recommended), connect the shielding to the right GND screw.
Tip: seal the screw- and dismantled cable part with a heat shrink tube
Plug the 3-screw part back into the LMA1 adapter.
Plug the cabled LMA1 into the LMGS “Black Dongle”.
Connect the USB-A side into the FlexiObox.
You will now have following connections:
FlexiObox <--> LMGS “Black Dongle” <--> LMA1 <--> Inverter
Technical details
Data | |
---|---|
Product nummer: | LMA1 |
Weight: | 20 gram |
Cable length: | n/a |
Connector 1: | RJ45 (male) |
Connector 2: | 3-screw terminal |
GTIN-13 ref: | 05430004172222 |
Documentation | |
---|---|
Product datasheet: | |
EU safety leaflet: | |
CE declaration: | |
Certification EMC/ROHS/CEBEC: |
Tips - Q&A
This adapter can only be used in conjunction with LMGS “Black Dongle” to achieve direct serial Modbus RTU connection between the inverter and FlexiObox.
LIFEPOWR recommends using Modbus RTU rather than Modbus TCP:
Modbus RTU uses a direct serial connection between FlexiObox and inverter
Modbus TCP uses the local network and might be slightly less stable or less fail-proof
Related: where to order this product.