Victron GX GSM: Cellular Modem & GPS Setup
Updated 6 September 2026 · By SolarNevs Research Desk, Dealer surveys + verified sources · 1 source · Method ↗

Key Takeaways
- The GX GSM is a modem and GPS accessory for our GX range of monitoring products.
- Model lineup coverage: GX GSM GSM100100100 | GSM100200100.
- Direct battery power span: Supply voltage range 8 - 70VDC.
- Host USB connectivity: Fixed 1.0m cable with USB-A connector (connects to the GX device).
- Complete power wiring harness: Power cable (included) 1.4m cable with inline fuse holder, terminal block and 10mm ring terminals.
- Overcurrent fuse protection: Inline fuse (included) T3.15A250V.
- Heavy-duty DC cable specification: A 1.4 m cable with M10 cable lugs and a built-in Slow Blow fuse 3.15A 250V, 5x20mm is included.
- Satellite location tracking: The GX GSM includes a built-in GPS receiver..
- External active GPS antenna: The required accessory part number is GSM900200100 - Active GPS Antenna for GX GSM.
- RF antenna interface: LTE antenna connector Type SMA Female.
- Broad thermal operating span: Operating temperature range -40 +50°C (-40 - 120°F).
Cellular Modem Architecture & GX Controller Integration
The GX GSM provides cellular internet connectivity and GPS tracking for Victron GX controllers (Cerbo GX, Venus GX) in mobile or remote off-grid locations. Powered directly from the system battery bank, it ensures continuous telemetry streaming to the VRM cloud portal.
The Victron GX GSM (GSM100100100 | GSM100200100) provides cellular and GPS connectivity across an 8 - 70VDC supply range with a fixed 1.0m USB-A cable for GX controllers:
- DC Power Input: 8 - 70VDC Range, 1.4m Cable Harness, M10 Ring Terminals, T3.15A 250V Fuse.
- Cellular & GPS RF: Built-in GPS Rec., SMA Female GSM, GSM900200100 GPS, -40 to +50°C Env.
- Host Interface: 1.0m USB-A, Venus OS Auto, VRM Telemetry, SMS Alarms.
Installation Rules & Power Connection
- USB Host Connection: Connect the Fixed 1.0m cable with USB-A connector (connects to the GX device) into any vacant USB port on the GX device.
- Battery Supply Harness: Connect the Power cable (included) 1.4m cable with inline fuse holder, terminal block and 10mm ring terminals across Supply voltage range 8 - 70VDC, ensuring Inline fuse (included) T3.15A250V is seated where A 1.4 m cable with M10 cable lugs and a built-in Slow Blow fuse 3.15A 250V, 5x20mm is included.
- Antenna Termination: Connect the cellular rod antenna to the LTE antenna connector Type SMA Female.
GPS Geofencing & VRM Cloud Telematics
The GX GSM combines cellular connectivity with satellite fleet management:
- Integrated Satellite Receiver: Incorporates real-time tracking since The GX GSM includes a built-in GPS receiver. when paired with The required accessory part number is GSM900200100 - Active GPS Antenna for GX GSM.
- Operating Envelope: Functions reliably across Operating temperature range -40 +50°C (-40 - 120°F).
- System Telemetry: Operates as The GX GSM is a modem and GPS accessory for our GX range of monitoring products across all GX GSM GSM100100100 | GSM100200100 hardware.
Technical Specifications & Sizing Summary
Parameter | Engineering Rating | Design Significance |
|---|
Model Hierarchy Part Numbers | GX GSM GSM100100100 | GSM100200100 | Cellular modem hardware variants |
System Monitoring Role | The GX GSM is a modem and GPS accessory for our GX range of monitoring products | Dedicated cellular and tracking expansion for GX devices |
DC Input Operating Span | Supply voltage range 8 - 70VDC | Connects directly across battery systems within 8 to 70VDC |
Host USB Interface | Fixed 1.0m cable with USB-A connector (connects to the GX device) | Plug-and-play USB connection recognized by Venus OS |
DC Power Cable Harness | Power cable (included) 1.4m cable with inline fuse holder, terminal block and 10mm ring terminals | Complete pre-assembled battery connection harness |
Inline Overcurrent Fuse | Inline fuse (included) T3.15A250V | Protects power supply cable against dead short circuits |
Detailed Harness Sizing | A 1.4 m cable with M10 cable lugs and a built-in Slow Blow fuse 3.15A 250V, 5x20mm is included | Heavy 5x20mm slow-blow ceramic fuse specification |
Integrated GPS Module | The GX GSM includes a built-in GPS receiver. | Real-time vehicle and boat position tracking |
Optional Active GPS Antenna | The required accessory part number is GSM900200100 - Active GPS Antenna for GX GSM | External active antenna for VRM geofencing |
Cellular Antenna Port | LTE antenna connector Type SMA Female | Standard 50-ohm RF connector for indoor/outdoor antennas |
Thermal Operating Span | Operating temperature range -40 +50°C (-40 - 120°F) | Rugged temperature envelope for engine compartments |
References
- Victron Energy: GX GSM Manual — accessed 31 August 2026
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