Pocket LAN 3.0
The Solax Pocket LAN 3.0 is the new generation Ethernet monitoring dongle for Solax inverters: 10/100 Mbps wired connection, support for Modbus TCP and IEEE 2030.5, live monitoring every 10 seconds, offline storage. It connects to the DONGLE port of the inverter and enables SolaxCloud via cable. Protection rating IP65, dimensions 123 × 29 × 42 mm.
The Solax Pocket LAN 3.0 is Solax Power’s next-generation Ethernet monitoring dongle, designed to connect photovoltaic inverters to the SolaxCloud platform via RJ45 Ethernet cable. It is the ideal choice when the Wi-Fi signal is not stable enough or when the system requires a low-latency data connection for integration with Modbus TCP and IEEE 2030.5 (SunSpec) systems.
Why choose a LAN connection for the inverter?
A wired Ethernet connection offers clear advantages over Wi-Fi: no radio interference, constant bandwidth, no coverage issues in environments with load-bearing walls or 2.4 GHz saturation. It is the recommended solution for commercial installations, industrial warehouses, apartment buildings, and in all cases where the inverter is installed far from the home router but served by a wired LAN network or a local switch.
Pocket LAN 3.0 Technical Specifications
| Product code | SOL-Pocket LAN 3.0 / POCKET-LAN-V3.0 |
| Connection type | Ethernet (RJ45 cable) |
| Ethernet speed | 10/100 Mbps |
| Power supply voltage | +3.3 V DC (from inverter) |
| Supported protocols | Modbus TCP, IEEE 2030.5 (SunSpec) |
| Sampling interval | Live every 10 seconds (on compatible models) |
| Offline storage | Yes, with automatic upload when network is restored |
| Protection rating | IP65 (indoor and outdoor installation) |
| Dimensions | 123 × 29 × 42 mm |
| Weight | ~54 g |
| Monitoring app | SolaxCloud (iOS, Android, web) |
| Warranty | 24 months |
Compatible Solax Inverters
The Pocket LAN 3.0 is compatible with most next-generation Solax inverters, both residential and commercial:
- Single-phase string inverters: X1-Mini G3.1, X1-Boost G3.3
- Three-phase string inverters: X3-MIC G2, X3-Pro G2, X3-Mega G2, X3-Forth
- Single-phase hybrid inverters: X1-Hybrid G4.1 (D version only)
- Three-phase hybrid inverters: X3-Hybrid G4.2 (D version only)
- Retrofit inverters: X1-FIT G4, X3-FIT G4
For older inverters from these generations, consider the Pocket LAN 2.0 or contact the MR WATT technical team to check compatibility.
SolaxCloud Features Enabled by the Dongle
- Real-time monitoring of production, self-consumption, and battery status
- Energy history available by day, month, year
- Automatic alerts via app/email in case of fault or anomaly
- Remote firmware updates for the inverter
- Parameter configuration and warranty management
- Modbus TCP integration with BMS, EMS, home automation, and industrial gateways
Frequently Asked Questions
What is the difference between Pocket LAN 3.0 and Pocket LAN 2.0?
The Pocket LAN 3.0 is the next-generation version, compatible with Solax inverters from the G2/G3.1/G4 series and with full support for Modbus TCP, IEEE 2030.5, live monitoring every 10 seconds, and offline storage. The 2.0 is the legacy version, designed for earlier generations of Solax inverters. For any recent inverter purchased in the last few years, the correct choice is 3.0.
Pocket LAN 3.0 or Pocket WiFi+LAN: which is better?
If you are certain that the system will use only a wired Ethernet connection, the Pocket LAN 3.0 is the most cost-effective and efficient choice. However, if during the site survey you are not 100% sure (e.g., the site is still under construction, or you have doubts about Wi-Fi coverage), the Pocket WiFi+LAN dual-mode is preferable, as it allows you to choose the mode on site without having to buy a second dongle.
What network cable is needed for the Pocket LAN 3.0?
A standard Ethernet cable category 5e or higher with RJ45 connector. For outdoor installations, a shielded (FTP/STP) cable with UV-resistant sheath is recommended. The dongle has a Fast Ethernet port (10/100 Mbps), so a Cat 6 cable is not necessary — Cat 5e is sufficient.
Does the Pocket LAN 3.0 support Modbus TCP for integration with third-party systems?
Yes. The dongle exposes inverter data via Modbus TCP and supports IEEE 2030.5 (SunSpec). This allows integration of the Solax inverter with third-party systems: energy management software (EMS), commercial BMS, advanced home automation (Home Assistant, ioBroker), industrial gateways. The wired connection ensures maximum stability for these integrations.
Can it be installed outdoors?
Yes. The Pocket LAN 3.0 has an IP65 protection rating, suitable for indoor and outdoor installation. However, we recommend protecting the Ethernet cable entry point with a waterproof connector or cable gland, and using shielded cable with a UV-resistant sheath for sections exposed to sunlight.
What happens if the LAN network goes down?
The dongle features offline data storage: if the network connection is lost, data is stored locally and automatically uploaded to SolaxCloud when connectivity is restored, with no gaps in the energy history. This feature is especially useful in installations with unstable data lines.
