The GX Family consists of these models:

    Cerbo GX - Most commonly used GX product.
    Cerbo-S GX - Lower cost version, same as normal Cerbo GX but without BMS-Can port, Tank- and Temperature monitoring inputs.
    Color Control GX - Our first released GX product, the CCGX has a display and buttons.
    Venus GX - The Venus GX has more analog and digital IO, no LCD and is more cost effective than the CCGX.
    CANvu GX - The CANvu GX is best for harsh environments - when its IP67 rating and touch LCD is a must.
    Octo GX - The Octo GX is particularly suited to medium size installations which have many MPPT Solar Chargers, as it has 10 VE.Direct ports.
    Maxi GX - Compared to the other GX devices, the Maxi GX has most CPU power and most VE.Direct ports: 25. 
This is the GX device to use for large systems with many VE.Direct MPPT Solar Chargers.

Lastly, there is a GX device built into our MultiPlus-II GX and EasySolar-II GX Inverter/chargers.


Use these VE.Can to CAN-bus cables to connect a CAN-bus enabled battery to a GX device.
1. Selecting the right cable
ASS030710018 - VE.Can to CAN-bus BMS type A Cable 1.8m

    BYD B-Box
    Pylontech US2000C/US3000C/UP5000/Force-L

ASS030720018 - VE.Can to CAN-bus BMS type B Cable 1.8m

    LG Chem Resu
    AXIstorage
    BMZ
    Pylontech US2000/US3000/UP2500
    Solar MD BMS EX

2. Installation

The side labeled 'CAN-bus BMS' plugs into the battery. The other side, labeled 'VE.Can' must be plugged into either the VE.Can port of the GX device, or the BMS-Can port.

Both port types (VE.Can and BMS-Can) on a GX Device can be configured for use with a CAN-bus BMS connected third party battery.

For configuration, see the manual specific to the brand of battery you are using.
3. Pin-out

In some cases it might be needed to make the cable at the location. Find below the pin-outs. 
Make sure to very carefully test the cable after crimping it. 
Self-made cables are very often the causes of very hard to diagnose problems.

3.1 Type A
Function 	Victron VE.Can side 	Battery side
GND 	Pin 3 	Pin 6
CAN-L 	Pin 8 	Pin 5
CAN-H 	Pin 7 	Pin 4
3.2 Type B
Function 	Victron VE.Can side 	Battery side
GND 	Pin 3 	Pin 2
CAN-L 	Pin 8 	Pin 5
CAN-H 	Pin 7 	Pin 4