The Teltonika TRB145 4G (LTE) IoT Gateway is a compact industrial IoT gateway offering LTE Cat 1 cellular, RS‑485 serial interface, flexible digital I/O, and virtual USB connectivity. Designed for constrained deployments requiring low power, rugged build, and secure remote management.
Cellular & SIM
- LTE Cat 1 modem with up to ~10 Mbps download and ~5 Mbps upload
- Supports fallback to 3G (HSPA+) and 2G networks
- Single external mini-SIM slot (2FF), auto APN and operator fallbacks
Connectivity & I/O
- 1 × Gigabit Ethernet port (auto MDI/MDIX)
- RS‑485 terminal block (supports 2-wire half or 4-wire full duplex, Baud 300–115200)
- 2 configurable digital I/O pins via 4-pin power connector (inputs detect 0–5 V as low, 8–30 V as high; outputs open-collector up to 30 V / 300 mA)
- Virtual network interface over micro-USB
Hardware & Power
- CPU: ARM Cortex‑A7 at 1.2 GHz; RAM: 128 MB DDR2; Flash: 512 MB SPI
- Aluminum housing with DIN-rail, wall or surface mounting options
- Power range 9–30 V DC, includes reverse-polarity and surge protection (>31 V)
- Typical power < 5 W consumption
Software, Security & Protocols
- Operating on RutOS (OpenWrt-based) with package manager and SDK
- Supports multiple VPN types: OpenVPN, IPsec, GRE, SNP, WireGuard, PPTP, L2TP
- Stateful firewall, NAT, port forwarding, DoS/DDoS protection, and MAC/IP filtering
- Event automation via I/O juggler, programmable schedules, SMS/RMS/email alerts
- Communication protocols: MQTT, Modbus RTU/master/slave, Serial over IP, NTRIP, SNMP, JSON‑RPC, SSH, TR‑069, CLI, RMS remote management
Diagnostics & Monitoring
- Connection monitoring via ping/wget reboot, scheduling, RSSI/SINR, signal strength LEDs
- Logs accessible via web UI, SSH, JSON‑RPC or RMS
- Configuration backup/restoration, firmware updates (FOTA) without losing settings
Mechanical & Environmental Specs
- Dimensions ~74.5 × 25 × 64.4 mm; Weight ~130 g
- IP30 ingress protection; operating humidity 10–90% non‑condensing
- Rated for –40 °C to +75 °C operation
- Multiple regional certifications: CE, UKCA, EAC, ICASA, Kenya, RoHS, REACH, etc.
