Four digital inputs and four SPDT relays per module, supplied as a factory-paired point-to-point set
Y401-44-L LoRa Wireless I/O Pair, 4DI/4DO
4DI+4DO LoRa Point-to-Point Wireless I/O Module
Y401-44-L links four independent input-to-relay channels across a factory-paired LoRa connection. Each unit provides 4DI/4DO for bidirectional equipment control.

Key Features
Each input drives only its corresponding remote output, with four-channel mirroring in both directions
Up to 5 km standard in open areas on 398–525 MHz LoRa; selected 10 km configurations require suitable antennas and installation
Passive dry-contact and NPN open-collector inputs, with no external voltage permitted on DI
5 A relay contacts at 277 VAC or 28 VDC, 9–36 VDC power and 35 mm DIN-rail mounting
Specifications
Wireless
- Frequency Band
- 398~525 MHz
- Communication Range
- Up to 5 km standard; 10 km option for selected configurations (open area; antenna and site dependent)
- Antenna Connector
- SMA
- Standard Antenna
- 470 MHz magnetic-mount antenna
Power Supply
- Voltage
- DC 9~36V
- Max Power Consumption
- 2W
- Operating Temperature
- -20°C ~ +85°C
- Humidity
- 10% ~ 90% RH, non-condensing
Digital Inputs
- Channels
- 4
- Type
- Passive dry contact / NPN open-collector (no voltage input to DI)
Digital Outputs
- Channels
- 4
- Type
- SPDT relay
- Rating
- AC 277V 5A / DC 28V 5A
Mechanical
- Dimensions
- 88 x 72 x 59 mm
- Weight
- Approx. 50 g
- Mounting
- 35 mm DIN rail
- Protection
- IP20
Product Documents
Related Products
Talk to our technical team.
Tell us about your interfaces, network environment, and deployment requirements.


