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

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.

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 A	Device B
Channel 1 input	Channel 1 output
Channel 2 input	Channel 2 output
Channel 3 input	Channel 3 output
Channel 4 input	Channel 4 output
Channel 5 input	Channel 5 output
Channel 6 input	Channel 6 output
Channel 7 input	Channel 7 output
Channel 8 input	Channel 8 output
Channel 9 input	Channel 9 output

Typical Applications

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

2. Ordering Information

Model Configuration

Y401-99-L is a one-to-one LoRa pair. The two digits, 99, specify the digital I/O count on the two sides: each device has 9 DI and 9 DO.

For the full code and examples, see Model Naming.

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 standard in open areas; a 10 km option is available for selected configurations
4. Fast communication - Up to 1 km in fast communication mode
5. DC power input - DC 9 to 36 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

Parameter	Specification
Communication technology	LoRa wireless communication
Transmission distance	Up to 5 km standard; 10 km option available for selected configurations
Fast communication range	Up to 1 km
Antenna connector	SMA female connector, external thread and center socket
Antenna option	470 MHz magnetic-mount antenna

Electrical

Parameter	Specification
Supply voltage	DC 9 to 36 V
Max. power consumption	3 W
Input channels	9 x NPN input / dry-contact switch
Input activation	Short the input terminal to COM for a dry-contact input
Output channels	9 x relay output
Output rating	AC 250 V 5 A / DC 28 V 5 A
Terminal type	5.08 mm pitch pluggable terminal block
Operating temperature	-20 to +85 degC
Operating humidity	10% to 90% RH, non-condensing

5. Interfaces

Interface	Description
Antenna	SMA female connector for the LoRa antenna
Power	DC 9 to 36 V input
Input	9-channel NPN or dry-contact input
Output	9-channel relay output
Terminal	5.08 mm pitch pluggable terminal block

6. Mechanical and Environmental

Parameter	Specification
Dimensions	56 x 109 x 160 mm
Standard weight	Approx. 910 g
Operating temperature	-20 to +85 degC
Operating humidity	10% to 90% RH, non-condensing

7. Installation and Wiring

DC Power

• Use a protected DC 9 to 36 V supply and confirm polarity before power-up.
• 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. A 10 km option requires the specified configuration and antenna. Actual performance depends on 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.

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• 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