Gateway V4 + 433 MHz
Wireless M-Bus Gateway V4 with the 433 MHz add-on: reads 868 MHz and 433 MHz meters in one device.
Description
Gateway for remote reading of wireless M-Bus meters in the 868 MHz and 433 MHz band via NB-IoT, LTE-M or LoRaWAN. The 433 MHz add-on adds a second radio to the Gateway V4 for meters that transmit according to OMS Annex O (PHY_B, 433 MHz) or Sensus RF Bubble UP at 433 MHz. Suitable for indoor and weather-protected outdoor installation.
Features
All Gateway V4 Series platform features plus:
- Second radio (Semtech SX1261) with its own 433 MHz antenna on the add-on board
- Wireless M-Bus OMS Annex O, PHY_B (433 MHz), meter to gateway direction
- Sensus RF Bubble UP 433 MHz
- 868 MHz and 433 MHz listen phases in the same cycle, each with its own duration (
cmodeDurSec/altCmodeDurSecetc.) - Telegrams from both bands are uploaded together via cellular network or LoRaWAN
The 433 MHz radio is used to receive meter telegrams only. The uplink to the backend (cellular or LoRaWAN) works exactly as on every other Gateway V4. Install mode (initial collection directly after reboot) is not available for 433 MHz; the first 433 MHz collection happens with the first regular cycle.
Product Components
- Firmware
- app-nrf91-origin · Firmware updates
- Housing
- LoCube — 122 × 82 × 55 mm
- Power supply
- Battery 38 Ah (Li-SOCl₂, 3.6 V) · External 12 V DC or 230 V AC available
- Optional accessories
- External antenna (SMA) · IP68 encapsulation · LoCube wall mounting kit · Pole mounting kit
Product Identification
- Name: Wireless M-Bus Gateway V4 + 433 MHz
- Type: LOB-GW4-433
- MPN / Ordering code: 1200310
Accessories
| Accessory | Notes |
|---|---|
| LoCube Wall Mount | Optional, wall or horizontal pipe |
| LoCube Mast Mount | Metal bracket for vertical pole / mast mounting |
| USB Config Adapter | For local configuration, diagnostics, and firmware updates |
LED Signal Patterns
The device uses the standard V4 LED signal patterns. See LED Signal Patterns for the full reference.
Configuration
The device is shipped with default configuration parameters. Local changes can be made via the config port using the USB Config Adapter and the Lobaro Config Tool.
For step-by-step instructions, see the Configuration Methods guides:
- 🔌 Local Config via USB — connect directly to the device
- 📡 Remote Config via CoAP — over NB-IoT / LTE-M via Lobaro Platform
- 📻 Remote Config via LoRaWAN — via LoRaWAN downlink
- 🔗 Remote Config via MQTT — for 3rd party MQTT backends
Custom factory configuration is available on request — devices can be pre-configured at production for your specific deployment. Contact sales@lobaro.de when ordering.
Configuration Parameters
This product runs the app-nrf91-origin firmware. To avoid duplication, the parameters are documented centrally with the firmware component and are not repeated here:
- Common firmware parameters: general, wireless M-Bus (868 MHz), LTE and LoRaWAN settings shared by all V4 gateways
- 433 MHz Add-On parameters:
altPhyand the 433 MHz listen durationsaltCmodeDurSec,altSmodeDurSec,altXmodeDurSec
To read 433 MHz meters, set at least one of the 433 MHz listen durations, e.g. altCmodeDurSec=300. The 868 MHz durations can stay at their defaults or be set to 0 if only 433 MHz meters are installed.
Firmware Updates
The latest firmware can be found here:
- Download latest firmware
-
For further information on how to update the device, refer to: Firmware Update.
A remote firmware update over LoRaWAN is currently not possible.
Use the firmware variant hw4.altphy, e.g. app-nrf91-origin+0.15.0+hw4.altphy~boot.hex for a local update via USB or app-nrf91-origin+0.15.0+hw4.altphy.hex for a remote update. All Gateway V4 variants run the app-nrf91-origin firmware.
LoRaWAN Uplink Formats
- LoRaWAN Protocol: Status Packet (Port 1) and wM-Bus uplink formats. Telegrams received at 433 MHz use the same uplink formats as 868 MHz telegrams.
Cellular Uplink (LTE)
Cellular uplink uses CoAP (with the Lobaro IoT Platform) or MQTT for third-party integration. The protocol details are documented centrally with the firmware:
The CoAP implementation details are not publicly disclosed and are intended for use exclusively with the Lobaro IoT Platform. If MQTT is not an option, please contact Lobaro directly.
Uplink Parser
A production-ready parser for the uplinks of this device is implemented within the Lobaro Platform. It covers the wireless M-Bus telegrams (including split telegram reassembly where applicable, AES-128 decryption for encrypted telegrams, and OMS-compliant data interpretation) as well as the add-on data of the respective variant, for example Modbus responses or sensor values.
Customers using the Lobaro Platform can utilize this parser directly as part of the platform processing pipeline.
If you are operating a Lobaro Gateway without using the Lobaro Platform, we can provide restricted platform access upon request. This allows you to inspect the parser behavior and use it as a technical reference for your own backend implementation.
Please contact our support team if you require access or further integration details.