Teltonika TRB255 4G LTE CAT M1 NB-IoT M2M Gateway LAN Router (2G/4G LTE, RS232, RS 485, Dual-SIM)

The Teltonika TRB255 is a compact and robust LTE gateway designed for industrial applications and IoT solutions. It offers reliable connectivity, a variety of interfaces and functions, and easy integration into existing systems.

Features
- 2G/4G LTE CAT M1
- Dual SIM
- VPN*
- Serial interface
- Compatible with Teltonika RMS

*Numerous VPN services, such as OpenVPN, IPsec, PPTP, L2TP, and DMVPN. A VPN is like a private tunnel for your Internet connection that encrypts your data and hides your IP address to protect your privacy and security on the Internet.

Teltonika TRB Series vs RUT Series
Both Teltonika's TRB and RUT series are robust industrial cellular routers used for a variety of IoT applications.

The TRB series is primarily designed as compact and cost-effective IoT gateways. These devices are ideal for smaller IoT projects where a simple and reliable connection to a network is needed. While some models offer optional Wi-Fi modules, Wi-Fi is usually not built in as standard. The TRB series is characterized by its easy configuration and small footprint.

In contrast, the RUT series is a more comprehensive line of industrial routers that offers a variety of interfaces and features, including an integrated Wi-Fi module. It is suitable for a wider range of applications, from small IoT projects to large industrial networks that require a robust and reliable connection. These routers offer higher performance, more flexibility in configuration, and a larger number of interfaces than the TRB series.

Machine-to-Machine (M2M)
M2M is a concept in which devices or machines are connected to each other over a network and exchange data on their own to complete tasks or share information. This communication occurs with no or minimal human involvement.

NB-IoT
NB-IoT stands for Narrowband Internet of Things. It is a Low Power Wide Area Network (LPWAN) technology that was specifically developed for the Internet of Things (IoT). NB-IoT enables a large number of devices to be connected to the Internet over long distances while consuming little power.

Mobile
- 2G/4G LTE CAT M1
- Dual SIM
- Status: IMSI, ICCID, Operator, Operator Status, Data Link Status, Signal Strength (RSSI), SINR, RSRP, RSRQ, EC/IO, RSCP, LAC, TAC, Cell ID, ARFCN, UARFCN, EARFCN, MCC and MNC
- SMS: Send/Read via HTTP POST/GET, SMS Autoreply, SMS to HTTP, Scheduled SMS
- USSD: Send and Read USSD Messages
- Lists: Operator Black/White List
- Band Management: Band Lock and Status Indication
- SIM Management: SIM PIN Code Management
- APN. Auto-APN
- Bridge/Passthrough: Pass mobile IP address to device in LAN

Ethernet
- 1x LAN connection (10/100Mbit/s)

Network
- Routing: Static routing
- Protocols: TCP, UDP, IPv4, IPv6, ICMP, NTP, DNS, HTTP, HTTPS, SFTP, FTP, SMTP, SSL/TLS, ARP, VRRP, PPP, PPPoE, UPNP, SSH, DHCP, Telnet, SMPP, SNMP, MQTT, Wake On Lan (WOL), VXLAN
- Firewall: Port forwarding, traffic rules, user-defined rules, TTL target adjustment
- DDNS: Supports up to 25 network providers
- Backup: VRRP, wired options, each of which can be used as automatic failover
- Load balancing: Balance Internet traffic across multiple WLAN connections

Security
- Authentication: Pre-shared key, X.509 certificates, TACACS+, RADIUS
- Firewall: Pre-configured rules, CLI, DMZ, NAT, NAT-T, NAT64
- Attack protection: DDOS and port scan protection
- VLAN: Port and tag-based separation
- Web filter: Black/whitelist for website control

VPN
- OpenVPN: Multiple clients and one server, 27 encryption methods
- IPsec: XFRM, IKEv1, IKEv2, 14 encryption methods
- GRE: GRE tunnel, GRE over IPsec
- PPTP, L2TP: Client/server support, L2TPv3, L2TP over IPsec
- Stunnel, DMVPN, SSTP, ZeroTier, WireGuard, Tinc: Support for VPN tunnels and encryption

MODBUS
- Modes: Server, Client TCP
- Registers: User-defined registers, File operations
- Data formats: 8-bit/16-bit/32-bit, INT, UINT, DCBA, HEX, ASCII

Data to server
- Protocols: HTTP(S), MQTT, Azure MQTT, Kinesis
- Data transfer: parameter extraction from various sources, LUA scripts

MQTT Gateway
- Modbus MQTT: sending commands and receiving data via MQTT

Monitoring and Management
- WEB UI: HTTP/HTTPS, configuration, FW update, event log
- FOTA, SSH, SMS, TR-069, MQTT, SNMP: remote management, notifications
- JSON-RPC
- RMS: Teltonika Remote Management System

IoT Platforms*
- Cloud of Things, WhingWorx, Cumulocity, Azure IoT Hub: Monitoring WiFi, IP, Network Operator, Signal Strength, Restart and FW Updates

*The Internet of Things (IoT) is a network of interconnected, intelligent devices that can collect and exchange data.

System Property
- CPU. Qualcomm MIPS 24kc, 650 MHz
- RAM: DDR2 64MB
- Flash: SPI Flash 16MB

Firmware/Configuration
- WEB UI: FW update, configuration profiles, backup
- FOTA: FW update via RMS for multiple devices
- Reset: Factory settings including IP, PIN, user data

Firmware Customization
- Operating system: RutOS (OpenWrt Linux based)
- Development tools: SDK
- Supported languages: Busybox shell, Lua, C, C++

Input/Output
- Input: 3x digital input (0-6 V), 1x analog input (0-30V)
- Output: 3x digital output (max. 30 V, 300 mA)
- Events: Triggered by email, RMS, SMS

Power
- Connection: 2 pins in a 6-pin Industrial terminal block
- Input: 9-30 VDC, reverse polarity protection
- Power consumption: 5 watts

Interfaces
- Ethernet: 1x RJ45 port, 10/100Mbit/s
- LED: 3x connection status, 3x connection strength, 1x power LED, 1x Ethernet port LED
- SIM: 2x SIM slot (Mini-SIM 2FF9, double stacked SIM tray
- Power: 1x 16-pin terminal block
- Antennas: 1x SMA connector for LTE, 1x SMA connector for GNSS
- RS232: 4-pin in 16-pin terminal block (TX, RX, RTS, CTS)
- RS485: 4-pin in 16-pin terminal block (D+, D-, R+, R-)
- Reset: Reset button

Specification
- Housing: Aluminum
- Dimensions: 83 x 25 x 74.2 mm
- Weight: 165g
- Mounting: DIN rail, wall mounting

Operating Environment
- Operating temperature: - 40°C to + 75°C
- Humidity: 10% - 90%, non-concessional
- Protection class: IP30

Delivery
1x Teltonika TRB255 4G LTE CAT M1 NB-IoT M2M Gateway LAN Router
1x 9W power supply
1x Mobile antenna (swivel, SMA)
1x GNSS antenna (self-adhesive, SMA, 3m cable)
1x 16-pin terminal block
1x Allen key
1x Ethernet cable (1.5m)
1x Quick start guide

*The Contents of the Delivery may vary depending on the standard order code.