Our company develops cellular modems that work smoothly and are fully compatible with the Honeywell electricity meters, which represent a future-proof migration solution
to the LTE network.

This modem can readout (the measured energy consumption of the connected electricity meters) remotely for the request of the HES center.

The device can also readout the alarms of the meters, then push them to the HES center by DLMS protocol.

**Quick Specifications — WM-E3S MBUS**
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.4 / LTE Cat.1 / Cat.M/NB / 450 MHz; 2G fallback
Protocols	IEC Transparent, TCP, DLMS, M-Bus
Interfaces, Physical Connectors	internal serial, Ethernet (optional), P1 Customer Interface (optional), M-Bus, Relay output (optional)
Meter compatibility	HONEYWELL AS220, AS230, AS300, AS1400, AS3000, AS3500 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), Surge protection

Connection possibilities:

1 electricity meter to the modem
4 M-Bus standard water meters to the modem

The consumption values of connected M-Bus water meters can be readout by our modem in „pull” mode via DLMS protocol.

The device was designed to fit under the terminal cover of the meter and it is compliant with the Honeywell^® standard.

Configuration and firmware updates can be done remotely by the WM-E Term^® software, minimizing the need for costly site visits.

Main features

Wireless module order options:
- 4G LTE Cat.1 with 2G or 2G / 3G “fallback” feature
- 4G LTE Cat.4 / 3G / 2G
- LTE Cat.M / Cat.NB with optional 2G “fallback” feature
Can be assembled into the meter enclosure (secure fastening)
Power supply (AC) from metrology
Compatible with Honeywell^® AS3000/3500 meters
IEC / DLMS meter compatibility
M-Bus connection: 4 water meters can be connected
Transparent data „push” to HES (by DLMS, alarm triggered)
„Pull” data sending (for HES request)
Usage of IEC 62056-21 and M-Bus protocols
Surge protection option (from 4kV up to 12kV)
Supercapacitor option (for power outage notification)
Remote & safe firmware update and configuration
WM-E Term^® application (mass configuration, FW refresh)
Device Manager^® software (order options)

Application & Use Cases

Smart Electricity Metering
Retrofit Metering Solutions / Modem Upgrades
Industrial Measurement
IoT Retrofit Solutions

Industries

Design and outfit

The modem PCB can be installed inside the meter enclosure – by modem enclosure rails
AC power by the metrology

Compatibility

Honeywell^® AS3000/AS3500 electricity meters
1-4 wired M-Bus water meters
IEC/ DLMS compatible meters

Operation

Transparent “pull” readout for electricity meters
„Push“ data sending and alarm signaling to the HES (by DLMS protocol) – for electricity meters
„Pull” data request (via DLMS) for water meters