Description:
The Teltonika TRB255 is an industrial LTE Cat M1 / NB-IoT gateway with dual SIM, RS232 and RS485 serial ports, Ethernet, GNSS and three configurable inputs/outputs. LTE-M and NB-IoT use very little data and power and reach deep into basements and meter rooms, which makes the TRB255 well suited to reading RS485 Modbus meters on low-cost IoT data plans.
Key Features:
LTE Cat M1 / NB-IoT with EGPRS fallback
Dual SIM with automatic switching
RS232 and RS485 (2- or 4-wire) on a terminal block
Modbus gateway, serial over IP and modem modes
1 x 10/100 Ethernet port
3 configurable digital inputs/outputs
GNSS (GPS, GLONASS, BeiDou, Galileo, QZSS)
Technical Specifications:
Model: TRB255
Mobile: LTE Cat M1 / NB-IoT / EGPRS
SIM: 2 x Mini SIM (2FF)
Serial: 1 x RS232, 1 x RS485
Ethernet: 1 x 10/100 Mbps
I/O: 3 x configurable digital I/O
Antennas: 1 x SMA mobile, 1 x SMA GNSS
Power: 9 - 30 V DC, under 5 W max
Dimensions: 74 x 83 x 25 mm, 165 g
Operating temperature: -40 to 75 deg C
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).
