Cellular modem specifically designed for the Itron SL7000 electricity meters
All around the world mobile operators are shutting down 2G/3G networks in order to give way to 5G. Companies that operate smart meters with 2G/3G connectivity must plan the migration to the latest 4G LTE network which is well-positioned to dominate smart metering communication technologies in the upcoming years. The migration to LTE has many advantages, for example, a shorter readout time due to the high-speed network with low latency.
Utilities have two options for migration: replace the meters or upgrade the modems! The 1st option comes with a high CAPEX, while the 2nd option is a future-proof solution that reduces TCO.
Our company develops cellular modems that work smoothly and are fully compatible with the 3-phase Itron® SL7000 electricity meters. This device was designed to be fully compliant with all Itron standards.
Our cellular modems represent a future-proof migration solution to the LTE network with the same functionality, on higher data speed. Configuration and firmware updates can be done remotely, minimizing the need for costly site visits.
| Device type | Smart electricity metering cellular modem |
|---|---|
| Primary use case | Smart metering (AMI/AMR), Smart Grid, LTE and Cat.M upgrade of legacy meters |
| Cellular & RF Access Technology | LTE Cat.1 / 2G and CSD, Cat.M/NB / with 2G or 450 MHz support |
| Protocols | IEC Transparent, TCP |
| Interfaces, Physical Connectors | RS232 (RJ45) or RS485 (RJ45) |
| Meter compatibility | ITRON SL7000 type electricity meters |
| Power & Environment | AC power from the meter — between -40 Celsius and +70 Celsius degree, IP51 protection |
| Approvals & Certifications | CE, RoHS, ReD DA |
| Firmware | Customized Free RToS (embedded system) |
| Installation | Fit under the terminal cover of the meter |
| Configuration | WM-E Term configuration software (downloadable) via local or TCP |
| Device Management | Device Manager software (Remote provisioning, firmware update, bulk config) |
| Security | TLS, Super capacitor (LastGASP notification) option, Surge protection |
This cellular modem has been specifically designed for use with specific three-phase Itron® SL7000 electricity meters. You can use it as an external modem with an optional DIN rail adapter.
The modem is connectable with its RJ45 connection to the meter, and it provides transparent data link to the HES, through the LTE cellular network.
Our modem forms part of the AMI (Advanced Metering Infrastructure) of the utility company.
The device can be used to remotely read meter’s registers, consumption data of electricity meters and modify modem parameters. It can send data by CSData call (2G) also.
The readout takes place in „PULL” mode, when the modem provides transparent communication between the meter and the electricity provider’s HES center.
The modem can also be configured to transmit the data read from the meter to the data center using a “PUSH” mode, either periodically at predefined intervals or triggered by alarm events (such as power outages or enclosure tampering).
The modem reads actual consumption data, the recorded event log, and load profile data. Certain meter parameters can also be read or modified remotely.
The modem is configurable with the WM-E Term® software and remotely manageable with the Device Manager® software (order option).
Product Datasheet
Updated: 2026-03-26
Quick Reference Guide
Updated: 2025-12-03
User Manual
Updated: 2023-12-19
WM-E Term User Manual
Updated: 2026-01-19
Parameter description
Updated: 2025-09-30
WM-E Term – Appendix
Updated: 2025-01-22
WM-E Term configuration tool
Updated: 2026-01-19
WM-E1S sample configuration file for WM-E Term (compressed ZIP file, extract the CFG file)
Updated: 2023-11-27
Video tutorial – Chapter 1. WM-E Term: Introduction
Video tutorial – Chapter 2. WM-E Term: How to Create a log file from the connected modem?
Video tutorial – Chapter 3. WM-E Term: Serial port connection settings
Video tutorial – Chapter 4. WM-E Term: Debug redirection
Video tutorial – Chapter 5. WM-E Term: How to change the Display Language?
Video tutorial – Chapter 6. WM-E Term: Use Log Files in WM-E Term (Tutorial video)
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