---
lang: "en"
title: "TRB256 Industrial NB-IoT Gateway"
sku: "TRB256"
canonical_url: "https://shop.marcomweb.it/en/cellular-routers/trb256-industrial-nb-iot-gateway"
brand: "MARCOM S.r.l."
end_of_life: "false"
---

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TRB256 - Industrial NB-IoT Gateway

The TRB256 is an industrial 4G LTE NB-IoT gateway designed to be applied to a wide range of IoT solutions. The device features multiple WAN interfaces, such as I/O, RS232, RS485, and an Ethernet port, in addition to boasting dual SIM functionality for continuous connectivity. This industrial-grade gateway also supports the 450 MHz frequency band, which offers superior LTE signal penetration compared to standard frequencies, making it an optimal choice for a vast range of M2M applications.

## Technical Specifications

#### Hardware

- Mobile: LTE Cat M1/Cat NB1, NB2/EGPRS (simultaneous operation of cellular connectivity and GNSS is not supported)
- CPU: Mediatek, 580 Mhz, MIPS 24KEc
- Storage: 128 MB
- Memory: 16 MB
- Power options: 16-pin terminal block, 9-30 VDC
- SIM: 2 x SIM slots (Mini SIM - 2FF), 1.8 V/3 V, dual-layer SIM tray
- Antenna connectors: 1 x SMA for Mobile, 1 x SMA for GNSS
- Ethernet: 1 x RJ45 port, 10/100 Mbps
- GNSS: GPS, GLONASS, BeiDou, Galileo and QZSS (simultaneous operation of GNSS and cellular connectivity is not supported)
- Inputs/Outputs: 3 x configurable digital I/Os in 16-pin terminal block
- Serial: 1 x RS232, 1 x RS485
- Status LEDs: 3 x connection status, 3 x connection strength, 1 x power, 1 x Eth port status
- Operating temperature: -40 °C to 75 °C
- Casing: Aluminum
- Dimensions (W x H x D): 83 x 25 x 74.2 mm
- Weight: 165 g

#### Software

- Operating system: RutOS (Linux OS based on OpenWrt)
- Mobile features: Auto APN, band lock, SIM switch, operator blacklist/whitelist, data/SMS limits, Bridge, Passthrough
- Network features: Routing, network protocols, VoIP passthrough, connection monitoring, Firewall, port management, Hotspot, DHCP, QoS/SQM, DDNS, Network backup, SSHFS
- Monitoring and Management: WEB UI, FOTA, SSH, SMS, Call, TR-069, MQTT, SNMP, JSON-RPC, RMS
- VPN and tunneling: OpenVPN, IPsec, GRE, PPTP, L2TP, Stunnel, DMVPN, SSTP, ZeroTier, WireGuard, Tinc
- Cloud Solutions: RMS, FOTA, Azure IoT Hub, Cloud of Things, Cumulocity, ThingWorx
- Hotspot: Captive portal, Radius server, SMS authorization, landing page, walled garden, user scripts, user groups and limitations, 9 customizable themes
- GNSS: GNSS, Coordinates, NMEA, NTRIP, Server software, Geofencing

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Source: https://shop.marcomweb.it/en/cellular-routers/trb256-industrial-nb-iot-gateway

MARCOM S.r.l. — a trusted supplier for industrial automation and building automation.