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Y503-2220-L LoRaWAN RTU, 2DI/2DO/2AI and RS485
Y503-2220-L connects two digital inputs, two switched voltage outputs, a 0–10 V input, a 4–20 mA input and isolated RS485 to a LoRaWAN gateway and Network Server.
- Protocol
- LoRaWAN 1.0.3
- Channels
- 2 DI with shared COM
- Voltage Input
- 1 fixed AV terminal, 0–10 V
- Current Input
- 1 fixed AI terminal, 4–20 mA
$72.00
Price for the selected configuration.
Shipping & Tax: Shipping is quoted separately and paid before dispatch. Import duties, taxes, customs fees and destination charges are paid by the customer.
Overview
Y503-2220-L connects two digital inputs, two switched voltage outputs, a 0–10 V input, a 4–20 mA input and isolated RS485 to a LoRaWAN gateway and Network Server.
Key Features
- Two digital inputs share COM and accept dry contacts or powered signals up to 28 VDC, with wiring matched to the sensor
- Two switched voltage outputs follow the RTU supply voltage; they are not dry relay contacts
- Separate fixed-function analog terminals: one 0–10 V AV input and one 4–20 mA AI input, with no analog output
- Isolated RS485 supports configured polling and transparent transport, including Modbus RTU data
- LoRaWAN 1.0.3, OTAA/ABP and Class A/Class C, with periodic, heartbeat and state-change reporting
- Timed output, pulse control and local input-to-output rules require compatible firmware and a confirmed output-load rating
How it works & selection
Selection notes
Confirm regional plan, DI wiring, DO voltage and combined load, sensor signals, firmware and payload definitions before ordering. The two outputs are switched voltage outputs, not dry relay contacts.
Technical specifications
| Protocol | LoRaWAN 1.0.3 |
|---|---|
| Channels | 2 DI with shared COM |
| Voltage Input | 1 fixed AV terminal, 0–10 V |
| Current Input | 1 fixed AI terminal, 4–20 mA |
LoRaWAN Radio
| Protocol | LoRaWAN 1.0.3 |
|---|---|
| Activation | OTAA / ABP |
| Device Classes | Class A / Class C |
| Frequency Plans | EU433, CN470 (reference), EU868, AU915, US915, AS923; region-specific hardware; specify the AS923 sub-plan when ordering |
| Transmit Power | -1 to 22 dBm, subject to regional configuration |
| Bandwidth | 125 kHz |
| Spreading Factor | SF7–SF12 |
| Receiver Sensitivity | -135 dBm at SF12, BW125 kHz |
Digital Inputs
| Channels | 2 DI with shared COM |
|---|---|
| Signal Types | Dry contact or powered contact; NPN/PNP wiring depends on COM connection |
| Maximum Voltage | DC 28 V |
Digital Outputs
| Channels | 2 switched voltage outputs |
|---|---|
| On State Voltage | Follows the applied RTU supply voltage |
| Output Type | Voltage outputs, not voltage-free relay contacts or analog outputs |
| Current Limit | Maximum specified output current: 1 A. Contact YenGear for per-channel and combined load limits before connecting two loads. |
| Supply Sizing | Use a 2 A adapter when the connected output load exceeds 200 mA; budget combined loads and starting current |
Analog Inputs
| Voltage Input | 1 fixed AV terminal, 0–10 V |
|---|---|
| Current Input | 1 fixed AI terminal, 4–20 mA |
| Accuracy | ±0.5% of full scale |
| Reported Resolution | 0.001 V / 0.001 mA; measurement accuracy is ±0.5% of full scale |
| Analog Outputs | None |
| Maximum Input | 10.7 V at AV; 22 mA at AI. Normal measurement ranges are 0–10 V and 4–20 mA. |
Serial Interface
| RS485 | 1 isolated RS485 A/B |
|---|---|
| Esd Protection | 15 kV |
| Baud Rates | 1200, 2400, 4800, 9600, 19200, 38400, 57600, 115200 bps |
| Format | 8 data bits; 1 or 2 stop bits; none, odd, or even parity |
| Initial Setting | 9600 bps, 8-N-1 |
| Operation | Scheduled polling and transparent transport, including configured Modbus RTU frames |
Reporting And Control
| Reporting | Periodic acquisition, heartbeat, and input/output state-change reporting |
|---|---|
| Control | Remote output commands; timed control, pulse output, and local input-to-output rules require compatible firmware |
| Commissioning | Check startup state and communication-loss behavior for the installed firmware. A radio acknowledgement does not prove that the connected equipment changed state. |
Power Supply
| Voltage | DC 9–28 V; use one supply for parallel power inputs |
|---|---|
| Reference Adapter | DC 12 V / 1 A; larger supply where required by output load |
| Maximum Working Current | 0.5 A for the RTU; budget controlled loads separately |
| Average Power | ≤0.5 W; load and operating conditions affect total consumption |
Environmental
| Operating Temperature | -40 to 85 °C |
|---|---|
| Storage Temperature | -50 to 95 °C |
| Humidity | 5–95% RH, non-condensing |
Mechanical
| Dimensions | 104 × 97.6 × 25.6 mm |
|---|---|
| Weight | Approximately 0.7 kg |
| Mounting | Wall or panel surface; follow supplied mounting drawing |
| Antenna Connector | SMA female |
Deployment
| Gateway Compatibility | Y501-L or Y511-L with matching regional plan and channels, using an external Network Server or optional local NS/AS |
|---|---|
| Downlinks | Class A receives downlinks after an uplink. Class C provides more receive opportunities. Delivery time depends on airtime, server scheduling and regional radio limits. |
| Payload | Configuration tools, uplink decoders and downlink commands must match the installed firmware |
