1 channel DI + 1 channel DO (supports AC250V 10A) LoRa Remote Transmission Terminal

Model：FCT-041726

A compact, lipstick-sized LoRa transparent transmission device, specifically designed as a wireless relay for transmitting up to one DI and one DO signal via LoRa. It supports both 35mm DIN rail and wall-mount installation methods, catering to the diverse requirements of various application environments.

• This terminal utilizes LoRa spread spectrum technology for wireless data transmission, offering users a fully transparent data transmission mode, high reception sensitivity of -139 dBm, superior anti-interference capabilities, and adjustable transmission power.
• It operates within the license-free ISM 430–490 MHz band—requiring no frequency usage fees—and defaults to 490 MHz to avoid the congested 433 MHz band.
• It offers a versatile configuration featuring one Digital Input (DI) and one Digital Output (DO), with status indicator LEDs provided for each channel.
  Units can be deployed in pairs: when a DI input is triggered on one unit, the corresponding DO output is activated on the other.
  Alternatively, a single LoRa gateway (or LoRa-to-RS485 converter) can connect to multiple LoRa wireless terminals to establish a one-to-many network topology.
• The device features automatic detection of the open/closed status for digital inputs; the digital output mirrors the exact state of the input, facilitating easy system commissioning.
• The digital output supports contact switching capabilities of 250 VAC/10 A, 125 VAC/15 A, and 28 VDC/10 A, and offers both Normally Open (NO) and Normally Closed (NC) output options.
• The DI/DOmaintains a stable state during power-up or when the fiber-optic link is disconnected, preventing any spurious or erratic switching behavior.
• It includes a dedicated USB (Type-C) configuration port, accompanied by configuration software that allows users to set LoRa parameters and monitor system status.
• It boasts robust lightning protection features, including resistance against direct strikes, induced high voltages, and power surges; the fanless design ensures efficient heat dissipation and minimizes downtime for repairs.
• It supports flexible installation options, including standard 35 mm DIN rail mounting or wall mounting; designed for wide-temperature operation, it functions reliably within a range of -40°C to +85°C.
• It supports a wide-range power input of 9–50 VDC (compatible with both AC and DC sources), and both the power interface and the DI/DO ports feature 6 kV lightning surge protection.
• The power supply circuit incorporates overload protection and reverse-polarity protection, and the device fully complies with Level 4 industrial electromagnetic compatibility (EMC) requirements.
• It features superior lightning protection capabilities, offering defense against direct strikes, induced high voltages, power surges, and similar electrical transients.

• DI or DOInterface   

Output Interface Type:

Dry Contact: Power relay dry contact output;

Response Time: Dry contact output: <1.5 ms;

Contact Switching Capacity: Dry contact output: 250 VAC 10 A / 125 VAC 15 A;

Max. Switching Frequency: 50 Hz;

Contact Lifetime: 1 × 10⁵ cycles (10 A, 250 VAC);

Physical Interface: 5.08 mm pitch plug-in terminals;

• LORA interface

RF frequency: default 490M, 400M~520MHz

configurable

RF transmit power: default 20dbm/100mW

Air rate: 0.018-37.5kbps

Air distance: 4~8km

Receiving sensitivity: -139dbm Max

Antenna interface: SMA interface, external thread and internal pin

• Working environment   

Working temperature: -40 ° C – +85 ° C

Storage temperature: -40 ° C – +85 ° C

Working humidity:    0% – 95% (no condensation)

MTBF:               >100,000 hours

Paired Application:

Point-to-Multipoint Applications: