NB-IoT

Eppeltone NB-IoT Communication Module for Smart Metering

Product Datasheet | Model: ECM-NBIOT-DLMS

Overview The Eppeltone ECM-NBIOT-DLMS is a carrier-grade Narrowband Internet of Things (NB-IoT) communication module purpose-built to provide ultra-low power, wide-area connectivity for smart metering applications. It integrates seamlessly with all DLMS/COSEM and IEC 62056-compatible energy meters, offering a plug-and-play solution for scalable AMI/AMR networks across urban, rural, and remote environments.

This module is engineered for reliability in harsh Indian, European, and Middle Eastern environments, offering industrial-grade temperature resistance, IP67-rated enclosures, and robust cellular stack compliance with global NB-IoT frequency bands.

Key Features – Universal Meter Compatibility: Works with all 3rd-party DLMS/COSEM or IEC 62056-21 meters via RS232, RS485, or optical interface – Global NB-IoT Band Support: Fully compliant with B3, B5, B8, B20, B28, B66, B70 NB-IoT bands – Energy Efficient: Ultra-low power operation ideal for battery-powered or solar-backed meters – High Penetration: Excellent indoor and underground signal strength, suitable for basements, tunnels, and concrete-heavy areas – Secure End-to-End Communication: AES-128/256 encryption, TLS 1.2/1.3, DTLS support – Push and Pull Communication: Configurable data transmission intervals and real-time on-demand polling – Edge Intelligence: Optional local OBIS parsing, MD breach alerts, and event filtering – Ruggedized Enclosure: IP67 Polycarbonate casing with DIN-rail and meter-body mounting options – Multi-Region Certified: Conforms to Indian TEC, CE (Europe), and TRA (Middle East) standards

Technical Specifications

Cellular Interface – NB-IoT Bands: B3, B5, B8, B20, B28, B66, B70 – SIM: 1x Nano SIM slot or embedded eSIM (MFF2 format) – Modulation: LTE Cat NB1/NB2 – Antenna: External SMA (IP67 Rated) or PCB-integrated – Output Power: +23 dBm (nominal)

Meter Interface – Electrical Ports: RS232/RS485 (configurable) – Optical Port: IEC 62056-21 compliant (9600–57600 baud) – Protocol Stack: DLMS/COSEM (Green Book v12+), IEC 62056, OBIS mapping supported

Security & Integrity – Data Encryption: AES-128, AES-256 GCM – Communication: TLS 1.2/1.3, DTLS, HTTPS – SIM/eSIM authentication, SHA256, X.509 Certificate support – Device identity via IMEI/UUID-based whitelist

Data Management – Push Frequency: Configurable (5/15/30/60 minutes) – Payloads: JSON, XML, DLMS OBIS wrapped – Protocols Supported: MQTT, HTTPS, CoAP, UDP – Data Queuing: Up to 96 hours storage on loss of network

Edge Capabilities (Optional) – On-device DLMS/OBIS decoding – MD/Overload alert processing – Last gasp messaging on power loss (supercap supported)

Power Supply – Voltage Input: 5V to 12V DC – Consumption: 250mW avg. in sleep, 1.4W peak during TX – Optional solar power input interface

Environmental – Operating Temp: -40°C to +85°C – Storage Temp: -50°C to +90°C – Humidity: 5% to 95% RH non-condensing – Enclosure: IP67-rated polycarbonate housing

Mechanical – Dimensions: 96mm x 62mm x 35mm (w/o antenna) – Weight: 210 grams – Mounting: DIN-rail / Panel mount / Meter body mounting

Compliance & Certifications – CE (Europe), TEC (India), TRA (UAE) – DLMS UA Certified Stack – RoHS, WEEE, REACH compliant – Conforms to IS 16444, IS 15959, IEC 62056 – Cybersecurity: ETSI EN 303 645 compliant

Integration & Compatibility – Compatible with 3rd-party meters: Secure, L&T, Genus, Elster, Hexing, Landis+Gyr – Supports integration with any DLMS-capable HES & MDMS – Open API for SAP IS-U, Oracle Utilities, and proprietary systems – Supports multi-tenant architecture with group ID routing

Application Scenarios – Urban, rural, and basement smart metering – Smart water/gas metering with battery-backed meters – Prepaid/Postpaid AMI deployments – Utility-scale renewable generation metering – Disaster-resilient smart metering deployments

Ordering Information – ECM-NBIOT-DLMS-STD (RS485/RS232 Standard Communication) – ECM-NBIOT-DLMS-OPTICAL (Optical Port Version) – ECM-NBIOT-DLMS-SOLAR (Low-power version with solar input) – ECM-NBIOT-DLMS-CUSTOM (Custom configurations on request)

Contact Us Eppeltone Engineers Limited

Visit: https://eppeltone.in
Email: info@eppeltone.in
Phone: +91-120-2341333