| Revew | Teltonika TRB141 LTE Cat 1 Industrial Cellular IoT GatewayThe Teltonika TRB141 is a small industrial cellular gateway with an LTE Cat 1 modem, designed for remote monitoring and control of equipment through inputs and outputs. It has 3 digital inputs (including an isolated input), an analog input with 4-20mA support, two relays, a 1-Wire interface for sensors and two I/O pins on the power connector. For setup from a computer it has a Micro-USB port that works as a virtual network interface; the device has no Ethernet port. It runs RutOS with VPN, a firewall and industrial protocols such as Modbus, MQTT, OPC UA, DNP3 and DLMS/COSEM, and its aluminium housing works from -40°C to 75°C. 
Key features- LTE Cat 1 with 3G and 2G - A cellular modem with up to 10Mbps download and 5Mbps upload, plus 3G and 2G support, a Mini SIM slot and an SMA antenna connector.
- Inputs and outputs for control - 2 digital inputs (dry/wet), an isolated input, a 0-30V analog input with 4-20mA mode, a non-latching and a latching relay, and two programmable I/O pins.
- 1-Wire sensors - A 1-Wire interface on the I/O connector with a 3.8V power output for the sensors.
- Events and alerts - I/O Juggler triggers actions based on input states, with SMS, email and RMS alerts, and outputs can also be switched by a phone call.
- Industrial and IoT protocols - Modbus TCP, MQTT, OPC UA, DNP3 and DLMS/COSEM, data to server and integration with Azure IoT Hub, AWS IoT Core, ThingWorx and Cumulocity.
- Security and remote management - OpenVPN, WireGuard, IPsec, GRE, PPTP, L2TP, DMVPN, SSTP, ZeroTier and Tinc, firewall and DDoS prevention, managed via WebUI, SSH, SNMP, TR-069, JSON-RPC and RMS.
Specifications| Manufacturer | Teltonika | | Model | TRB141 | | Mobile | 4G LTE Cat 1 up to 10Mbps DL / 5Mbps UL, 3G up to 384kbps, 2G up to 296kbps | | SIM | 1 x Mini SIM (2FF) slot, 1.8V/3V | | Antenna | 1 x SMA connector for LTE | | USB | Micro-USB (virtual network interface) | | Inputs | 2 x digital (dry/wet), 1 x isolated, 1 x analog 0-30V or 4-20mA | | Outputs | 2 x relays (non-latching and latching), 2 x I/O pins (open collector up to 30V, 300mA) | | Other interfaces | 1-Wire, 3.8V power output | | CPU | ARM Cortex-A7 1.2GHz | | Memory | 128MB DDR2 RAM, 512MB Flash | | Operating system | RutOS (OpenWrt based) | | VPN | OpenVPN, WireGuard, IPsec, GRE, PPTP, L2TP, DMVPN, SSTP, ZeroTier, Tinc | | Protocols | Modbus TCP, MQTT, OPC UA, DNP3, DLMS/COSEM | | Management | WebUI, SSH, SMS, SNMP v1/v2/v3, TR-069, JSON-RPC, MQTT, RMS | | Power | 9-30V DC via 4-pin connector, reverse polarity protection, under 5W | | Housing | Aluminium, IP30 | | Operating environment | -40°C to 75°C, 10%-90% humidity non-condensing | | Dimensions and weight | 74.5 x 25 x 64.4 mm, 136 g | | Mounting | DIN rail, wall or flat surface (kit required) |
In the box- TRB141 gateway
- 9W power supply
- Magnetic mobile antenna (SMA, 3 m cable)
- Micro-USB cable (0.8 m)
- Hex key
- 2x8-pin I/O connector
- Quick start guide
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