The Mbus bus is a serial bus powered by the master (Box or Hub) with 37V, the Box/Hub can handle natively 3.6mA (3*UL) on the bus.

Hardware installation tips: How to connect a M-bus device with my Wattsense Box/HUB?
Connect a M-bus equipment
To connect correctly the Box/Hub on the bus, you will have to check the address of all the types of equipment on the network and pick an available one for the Box/HUB.
Then in your configuration Tool, you should be able to fill in the required parameters:

Read a property in a M-bus equipment
To read a property in a M-bus equipment, you'll have to know two required pieces of information.
For each properties:
- DIF + DIFE
- DIF + DIFE length
- VIF + VIFE
- VIF + VIFE
- VIF + VIFE length
*DIF: Data Information Field
*DIFE: Data Information Field Extension
*VIF: Value Information Field
*VIFE: Value Information Field Extension
If you have any problem, please do not hesitate to contact us: Wattsense Support