- LTE Cat 1
- An LTE standard for IoT and M2M applications. Delivers up to 10 Mbps downlink and 5 Mbps uplink. More than sufficient for telemetry, SCADA and monitoring workloads. Used in TRB141, TRB142, TRB145.
- LTE Cat 1 bis
- A variant of LTE Cat 1 optimised for single-antenna operation. Standard Cat 1 requires two antennas; Cat 1 bis achieves comparable performance with one. Reduces hardware complexity for embedded and compact devices. Used in TRB247 (North America).
- LTE Cat 4
- LTE standard delivering 150 Mbps downlink and 50 Mbps uplink. The most widely deployed category for industrial 4G gateways. Used in TRB140, TRB143, TRB246.
- LTE Cat 6
- Extends LTE Cat 4 with carrier aggregation, combining two frequency bands to reach 300 Mbps downlink. More expensive than Cat 4 but necessary for high-throughput applications. Used in TRB160.
- LTE Cat M1 (LTE-M)
- An LTE standard for low-power IoT devices. Delivers up to 588 kbps downlink but offers better battery life, improved coverage and support for device mobility compared to NB-IoT. Used in TRB256.
- NB-IoT (Narrowband IoT)
- An IoT cellular standard with very low data rates (32-127 kbps) but exceptional power efficiency and deep signal penetration. Suitable for static sensors with small, infrequent data payloads. Used in TRB256.
- 5G Release 16
- The third 5G standard release from 3GPP. Introduces improved spectral efficiency, carrier aggregation enhancements, lower latency and better network synchronisation over Release 15. Used in TRB501.
- 5G SA / NSA
- Standalone (SA) 5G operates on a native 5G core network. Non-Standalone (NSA) uses a 4G core as an anchor with 5G radio access. SA offers lower latency and full 5G features. NSA has wider network availability currently. TRB501 supports both.
- RS232
- A serial communication standard using single-ended signalling. Common on industrial equipment, medical devices and older instrumentation. Limited to short cable runs (typically under 15m). Used for point-to-point communication between two devices. Supported in TRB142 and TRB246.
- RS485
- A differential serial standard supporting multi-drop networks of up to 32 devices on a two-wire bus. Cable runs up to 1200m. The physical layer for Modbus RTU. Widely used in industrial automation, building controls and energy monitoring. Supported in TRB145 and TRB246.
- M-Bus (Meter-Bus)
- A European standard (EN 13757) for remote reading of utility meters including gas, water, electricity and heat. Two-wire bus that can power the meter. The standard for district heating and building sub-metering. Supported exclusively by TRB143 in the TRB range.
- Modbus
- The most widely deployed industrial communication protocol. Originally serial (Modbus RTU over RS485/RS232), also runs over TCP/IP (Modbus TCP). Used by PLCs, VFDs, sensors and controllers. RutOS includes a Modbus data gateway function.
- DNP3
- Distributed Network Protocol 3. Widely used in utility SCADA systems for electricity, water and gas distribution. Designed for reliable communication over noisy or unreliable links. Supported in TRB160, TRB246 and TRB501.
- DLMS / COSEM
- Device Language Message Specification. The application layer standard for smart electricity meters. Often used with COSEM (Companion Specification for Energy Metering). Supported in TRB246, TRB256 and TRB501.
- OPC UA
- OPC Unified Architecture. A platform-independent, service-oriented protocol for industrial automation. Provides secure, reliable data exchange between sensors, controllers and cloud systems. Supported in TRB160 and TRB247.
- RutOS
- Teltonika’s custom firmware, based on OpenWrt Linux. Runs on every TRB device. Provides the WebUI, VPN clients and servers, firewall, routing, SMS control, MQTT, SNMP, Data to Server and RMS integration. OpenWrt compatibility means custom packages can be added.
- RMS (Remote Management System)
- Teltonika’s cloud-based device management platform. Allows remote configuration, firmware updates, VPN access, signal monitoring and event alerting across a fleet of TRB and RUT devices. Sold as per-device licenses.
- DIN Rail
- A standardised 35mm metal rail used for mounting industrial equipment inside control panels and electrical enclosures. All TRB devices support DIN rail mounting. The industry standard for industrial gateway installation.
- eSIM / eUICC
- Embedded SIM. A SIM chip soldered to the PCB rather than a removable SIM card. Profiles (operator subscriptions) are downloaded over the air. Bootstrap connectivity means a device can download its first profile without any pre-installed SIM. Supported in TRB501 (batch 2+) and TRB247 (optional).
- MQTT
- Message Queuing Telemetry Transport. A lightweight publish-subscribe messaging protocol designed for low-bandwidth IoT applications. Used for Data to Server on TRB devices – sending gateway telemetry and sensor data to cloud platforms.
- FOTA
- Firmware Over The Air. Automatic firmware update delivered over the cellular connection. All TRB devices support FOTA, allowing remote firmware management without physical access to the device.
- SCADA
- Supervisory Control and Data Acquisition. An industrial control system architecture that monitors and controls remote equipment. TRB gateways with Modbus, DNP3 or OPC UA support serve as cellular SCADA gateways connecting field devices to central control systems.
- Carrier Aggregation
- A technique that combines two or more frequency bands simultaneously to increase total throughput. LTE Cat 6 (TRB160) uses carrier aggregation to reach 300 Mbps. 5G Release 16 (TRB501) uses enhanced carrier aggregation for speeds above 2 Gbps.
- Static IP SIM
- A SIM card with a fixed, non-changing public IP address. Essential for remote access to TRB gateways without a VPN or dynamic DNS service. Available from IoT SIM providers as an add-on to standard data plans.
- WireGuard
- A modern, high-performance VPN protocol with a small codebase and strong security. Faster to establish tunnels than OpenVPN and typically delivers better throughput. Supported natively in RutOS on all TRB devices.