Appearance
Y401-11-L LoRa Wireless I/O Module Specification
Table of Contents
- Overview
- Ordering Information
- Key Features
- Technical Specifications
- Interface & Pin Description
- Mechanical & Environmental
- Installation & Wiring
- Important Notes
1. Overview
The Y401-11-L is a point-to-point wireless switch transmission terminal based on LoRa modulation technology, designed to replace traditional wired switches. This device enables bidirectional communication between two units without configuration, programming, or wiring requirements.
Product Configuration
- Pair-based operation: Each set includes Device A and Device B for mutual control
- Master-slave free: Both devices can transmit and receive signals
- Plug-and-play: No configuration or programming required
- Zero operating costs: No subscription or service fees
Working Principle
When Device A's input terminal is shorted with the common terminal, the signal is transmitted to Device B, causing Device B's output common terminal and normally open terminal to conduct. When Device A's input and common terminals are disconnected, Device B's output common terminal and normally closed terminal conduct. The same operation works in reverse from Device B to Device A.
2. Ordering Information
2.1 Model Naming
Y401-11-L
- Y401: LoRa wireless I/O module series
- 11: 1DI/1DO configuration
- L: Standard version
2.2 Package Contents
- 2 × Y401-11-L modules (Device A & Device B)
- 2 × 470MHz magnetic mount antennas
- 2 × DIN rail clips
- Quick reference guide
- Warranty card
3. Key Features
- Wireless Range – Up to 5000 meters transmission distance in open areas
- Simple Operation – Point-to-point communication without configuration
- Wide Voltage Input – 9~36V DC power supply with reverse polarity protection
- Relay Output – 1 SPDT relay supporting AC 277V/5A or DC 28V/5A
- Universal Input – Supports both NPN signals and dry contact switches
- Status Indicators – Multiple LEDs showing working status, connection, input, and output
- Industrial Design – Hardware watchdog for high reliability, 35mm DIN rail mounting
- Zero Maintenance – No programming, no wiring, no operating costs
4. Technical Specifications
4.1 Wireless Parameters
| Parameter | Specification |
|---|---|
| Frequency Band | 398~525MHz |
| Transmission Distance | 5000m (open area) |
| Antenna Interface | SMA connector (external thread, internal hole) |
| Standard Antenna | 470MHz magnetic mount antenna |
4.2 Electrical Parameters
| Parameter | Specification |
|---|---|
| Supply Voltage | 9~36V DC |
| Max Power Consumption | 1W |
| Input Type | NPN input and dry contact switch |
| Output Rating | AC 277V 5A / DC 28V 5A |
| Operating Temperature | -20°C ~ +85°C |
| Operating Humidity | 10~90% RH (non-condensing) |
4.3 Mechanical Parameters
| Parameter | Specification |
|---|---|
| Dimensions | 88mm × 37mm × 59mm |
| Weight | Approx. 50g |
| Mounting | Standard 35mm DIN rail |
5. Interface & Pin Description
5.1 Interface Overview
| Interface | Description |
|---|---|
| Antenna | SMA interface for LoRa magnetic or rod antenna |
| Power | DC 9~36V input with reverse polarity protection |
| Input | Passive switch input with input terminal and common terminal |
| Output | Relay output with normally open, common, and normally closed terminals |
5.2 LED Indicators
| LED Name | Function | Status Description |
|---|---|---|
| Power | System working indicator | Constantly lit when system is running |
| Link | Connection status indicator | Constantly lit when connection is established |
| Input | Input indicator | Lit when input terminal and common terminal are shorted |
| Output | Output indicator | Lit when output common and normally open are conducting |
6. Mechanical & Environmental
| Item | Specification |
|---|---|
| Dimensions | 88 × 37 × 59 mm |
| Mounting | 35 mm DIN rail clip |
| Protection | IP20 |
| Enclosure | Flame-retardant plastic housing |
| Weight | 50g |
7. Installation & Wiring
7.1 Input Connection
For mechanical switches (self-locking switches, float switches, relay outputs):
- Connect directly to device input terminals without any voltage
For NPN signals:
- Connect NPN emitter to common terminal
- Connect NPN collector to input terminal
- Do not connect NPN signals to other power sources
7.2 Output Connection
For direct load control (up to 1kW resistive loads):
- Connect load directly in series with the device
For high-power applications (above 1kW):
- Use AC contactors for power switching
- Refer to wiring diagrams for proper connection
7.3 Installation Guidelines
- Install antennas in open areas, vertically positioned ~2 meters above ground
- Keep antennas away from large metal equipment
- Ensure antenna connectors are tightly secured
- Mount devices on 35mm DIN rails in electrical cabinets
- Maintain proper clearance for ventilation and wiring
8. Important Notes
- Communication Type – This is a half-duplex communication device. Not suitable for applications requiring high real-time performance in complex environments.
- Frequency Range – Product operates at 398~525MHz. Performance may be affected outside this range.
- Antenna Installation – Ensure tight antenna connections, place antennas in open areas, position vertically ~2 meters high, and keep away from large metal equipment.
- Manufacturer: Hunan Yanji Tech Co.,Ltd
- Address: Room 21014, Unit 1, Fudixingguang plaza, Yuhua district Yingxin road, Changsha, Hunan, P.R. China
- Email: hi@yanjiiot.com
- Website: www.yanjiiot.com