Description:
The Teltonika TRB256 is the newer, lower-cost LTE Cat M1 / NB-IoT gateway in the TRB range, with dual SIM, RS232 and RS485 on a terminal block, Ethernet, GNSS and three digital inputs plus three outputs. It is designed for low-data remote meter reading: it polls RS485 Modbus meters and sends the readings over LTE-M or NB-IoT, drawing under 3.5 W.
Key Features:
LTE Cat M1 / NB1 / NB2 with EGPRS fallback
Dual SIM with automatic switching
RS232 and RS485 (2- or 4-wire) on a 16-pin terminal block
Modbus gateway, serial over IP and modem modes
1 x 10/100 Ethernet port
3 digital inputs and 3 digital outputs
GNSS (not used at the same time as the cellular link)
Technical Specifications:
Model: TRB256
Mobile: LTE Cat M1 / NB-IoT / EGPRS
SIM: 2 x Mini SIM (2FF), stacked tray
Serial: 1 x RS232, 1 x RS485
Ethernet: 1 x 10/100 Mbps
I/O: 3 x digital input, 3 x digital output
Antennas: 1 x SMA LTE, 1 x SMA GNSS
Power: 9 - 30 V DC, under 3.5 W
Dimensions: 83 x 25 x 74.2 mm, 165 g
Operating temperature: -40 to 75 deg C, IP30
Ordering Options:
Single unit. Needs a SIM card with an LTE-M or NB-IoT data plan (not included); please check LTE-M / NB-IoT coverage at the site with your network operator before ordering. For power from a 230 V supply in a DB or meter kiosk, add the Mean Well MDR-20-24 DIN-rail power supply, or the Mean Well DRC-60A DIN-rail UPS supply with a 12 V battery to stay online through load shedding.
Lead Time:
1 - 3 Days (local stock).
