Victron GX LTE 4G Modem: Setup & VRM Cloud Guide

Key Takeaways

• The Victron GX LTE 4G (available across regional models GX LTE 4G GSM100100400 | GSM100200400 | GSM100300400) provides cellular connectivity for Venus OS devices.
• Operates across a wide Supply voltage range 8 - 70VDC, directly powered from DC battery supplies.
• Features low power consumption: Power draw 2.5W while 2G/3G/4G data transfer <1.0W in idle mode +0.4W if GPS is enabled.
• The GX LTE 4G includes a built-in GPS receiver for asset tracking and automated geofencing on the VRM Portal.
• Utilizes a standard Regular Mini SIM (supports both 1.8V and 3V) card format.
• Delivers robust data transmission speeds: LTE Cat-1: 10 Mbps / 5 Mbps 3G (HSPA+): 42 Mbps / 5.76 Mbps 2G (EDGE): 236.8 Kbps / 236.8 Kbps 2G (GPRS): 85.6 Kbps / 85.6 Kbps.
• Connects to the GX device via a Fixed 1.0m cable with USB-A connector (connects to the GX device).
• Includes a Power cable (included) 1.4m cable with inline fuse holder, terminal block and 10mm ring terminals.
• Provides clear visual status with a Status indicator Blue LED.
• Compact, lightweight build: Dimensions (l x w x h) 106 × 42.5 × 22mm Weight 0.08kg (0.177lbs) with Operating temperature range -40 +50°C (-40 - 120°F).
• Compliant with Safety EN 60335-1 / EN 60335-2-29 / EN 62368-1 standards.

Hardware Architecture & Power Connection

The Victron GX LTE 4G is a dedicated cellular accessory for Cerbo GX, Cerbo-S GX, Ekrano GX, and Venus GX controllers. It transmits telemetry data to the Victron Remote Management (VRM) portal from off-grid, marine, and mobile installations without local Wi-Fi or wired internet.

The Victron GX LTE 4G provides cellular modem and GPS connectivity across an 8 to 70V DC supply voltage range (2.5W active / <1.0W idle / +0.4W GPS):

• Host Interface: Fixed 1.0m USB-A, Plug & Play GX Link, Status Blue LED.
• Cellular & SIM: Mini SIM (2FF), LTE Cat-1 (10 Mbps DL / 5 Mbps UL), 4G/3G/2G Fallback, SMA Antenna Port.
• Positioning: Built-in GPS, SMA Connector, VRM Tracking.

Installation Steps

1. DC Power Connection: Connect the supplied Power cable (included) 1.4m cable with inline fuse holder, terminal block and 10mm ring terminals across the Supply voltage range 8 - 70VDC battery terminals. The inline fuse protects the modem during voltage transients.
2. SIM Card Insertion: Insert a Regular Mini SIM (supports both 1.8V and 3V) card into the SIM slot until it clicks securely into place.
3. USB Host Connection: Plug the Fixed 1.0m cable with USB-A connector (connects to the GX device) into any available USB port on the GX controller.
4. Antenna Mounting: Connect the indoor mini rod antenna (or optional outdoor antenna) to the SMA connector.

VRM Telemetry & GPS Geofencing

Once connected to the GX device, Venus OS auto-detects the cellular modem:

• Cellular Speeds: The modem negotiates LTE Cat-1: 10 Mbps / 5 Mbps 3G (HSPA+): 42 Mbps / 5.76 Mbps 2G (EDGE): 236.8 Kbps / 236.8 Kbps 2G (GPRS): 85.6 Kbps / 85.6 Kbps, providing sufficient bandwidth for real-time Remote Console streaming and firmware updates.
• GPS Tracking: Because The GX LTE 4G includes a built-in GPS receiver, connecting an active GPS antenna enables real-time position reporting and alarm geofencing on the VRM Portal dashboard.
• Power Optimization: With an idle draw under 1W (Power draw 2.5W while 2G/3G/4G data transfer <1.0W in idle mode +0.4W if GPS is enabled), the modem can remain powered continuously on off-grid battery banks without excessive drain.

Technical Specifications & Environmental Performance