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Y401-99-L LoRa Wireless I/O Module Datasheet ​

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Contents ​

  1. Overview
  2. Ordering Information
  3. Key Features
  4. Technical Specifications
  5. Interfaces
  6. Mechanical and Environmental
  7. Installation and Wiring
  8. Important Notes

1. Overview ​

The Y401-99-L is a nine-channel point-to-point wireless I/O terminal based on LoRa wireless communication. A matched pair contains two bidirectional modules. Each module provides nine digital inputs and nine relay outputs. Each input state is transmitted to the corresponding output channel on the other module.

Y401-99-L control diagram

Operating Logic ​

  • A dry-contact closure or active NPN signal on Device A DI activates the corresponding DO relay on Device B.
  • When the input returns to its open state, the corresponding remote relay resets.
  • Bidirectional operation: the same logic applies from Device B to Device A.

Channel Mapping ​

Device ADevice B
Channel 1 inputChannel 1 output
Channel 2 inputChannel 2 output
Channel 3 inputChannel 3 output
Channel 4 inputChannel 4 output
Channel 5 inputChannel 5 output
Channel 6 inputChannel 6 output
Channel 7 inputChannel 7 output
Channel 8 inputChannel 8 output
Channel 9 inputChannel 9 output

Typical Applications ​

Multi-channel remote control, pump interlock, industrial equipment control, and alarm systems

2. Ordering Information ​

Model Naming ​

CodeMeaning
Y401Point-to-point wireless I/O module series
999DI/9DO configuration
LLoRa wireless communication

Matched Pair ​

A standard pair consists of two matched Y401-99-L modules. Both modules can transmit and receive. The antenna interface uses an SMA female connector; a 470 MHz magnetic-mount antenna is an available antenna option.

3. Key Features ​

  1. Nine-channel control - Nine independent digital input and relay output channels
  2. LoRa wireless communication - Private point-to-point wireless link
  3. Open-area range - Up to 5 km in open areas
  4. Fast communication - Up to 1 km in fast communication mode
  5. AC power input - AC 100 to 240 V, with maximum power consumption of 3 W
  6. NPN or dry-contact input - Activate each input by an NPN signal or by shorting the input terminal to COM
  7. Relay outputs - Nine relay output channels rated for AC 250 V 5 A or DC 28 V 5 A
  8. Pluggable terminals - 5.08 mm pitch pluggable terminal blocks

4. Technical Specifications ​

Wireless ​

ParameterSpecification
Communication technologyLoRa wireless communication
Transmission distanceUp to 5 km in open areas
Fast communication rangeUp to 1 km
Antenna connectorSMA female connector, external thread and center socket
Antenna option470 MHz magnetic-mount antenna

Electrical ​

ParameterSpecification
Supply voltageAC 100 to 240 V
Max. power consumption3 W
Input channels9 x NPN input / dry-contact switch
Input activationShort the input terminal to COM for a dry-contact input
Output channels9 x relay output
Output ratingAC 250 V 5 A / DC 28 V 5 A
Terminal type5.08 mm pitch pluggable terminal block
Operating temperature-20 to +85 degC
Operating humidity10% to 90% RH, non-condensing

5. Interfaces ​

InterfaceDescription
AntennaSMA female connector for the LoRa antenna
PowerAC 100 to 240 V input
Input9-channel NPN or dry-contact input
Output9-channel relay output
Terminal5.08 mm pitch pluggable terminal block

6. Mechanical and Environmental ​

ParameterSpecification
Dimensions56 x 109 x 160 mm
Standard weightApprox. 910 g
Operating temperature-20 to +85 degC
Operating humidity10% to 90% RH, non-condensing

7. Installation and Wiring ​

AC Power ​

  • Use a protected AC 100 to 240 V supply and have qualified personnel complete the installation.
  • Disconnect the power supply before inserting or removing the pluggable terminal block.
  • Follow the power and terminal markings on the module.

Input Wiring ​

No voltage input on DI

The digital input (DI) is not a voltage-input terminal. Do not connect any powered signal or external voltage source directly to DI.

Connect only a passive dry contact or an NPN open-collector output between DI and COM.

Mechanical switches:

  • Connect each switch between the corresponding input terminal and COM.
  • No external signal voltage is required for a dry-contact input.

NPN open-collector output:

  • Connect the transistor collector to the corresponding input terminal.
  • Connect the transistor emitter or 0 V reference to COM.
  • Do not connect sensor power or a PLC voltage output to DI.

Relay Output Wiring ​

  • Connect each load according to the terminal markings on the module.
  • Keep the load within the relay rating of AC 250 V 5 A or DC 28 V 5 A.
  • Use a correctly rated contactor or external power relay for high-power or inductive loads.
  • Add suitable fuse and surge suppression for the connected load.

Antenna Installation ​

  1. Install the antenna vertically in an open area.
  2. Keep the antenna away from large metal structures and other radio obstructions.
  3. Tighten the SMA connection securely before operation.

8. Important Notes ​

  1. The 5 km transmission distance is an open-area planning value. Actual performance depends on the antenna, installation, obstructions, interference, and site conditions.
  2. Fast communication is specified for distances up to 1 km; it is not a 10 km operating mode.
  3. Never apply voltage directly to a DI terminal.
  4. Relay ratings are maximum ratings. Select the external contactor, protection, and suppression components for the actual load.
  5. The wireless link is not intended to be the sole emergency-stop, personnel-safety, or hard-real-time control path.
  • Manufacturer: Hunan YenGear Tech Co., Ltd.
  • Address: Room 21014, Building 1, Fudi Xingguang Tiandi, Yingxin Road, Yuhua District, Changsha, Hunan, China
  • Email: [email protected]
  • Website: www.yengear.com