Wireless I/O Module (Y401 / Y402 / Y403 / Y406 / Y401WG-L / Y412)

The YenGear wireless signal family covers three related product groups. Y401, Y402, Y403, and Y412 extend digital control and analog measurement signals over a private LoRa link. Y406 adds handheld LoRa control and RS485 communication for relay-controlled equipment. Y401WG-L extends Wiegand access-control signals over a separate point-to-point RF link.

The Y401, Y402, and Y403 families cover point-to-point, one-to-many, and Auto Relay relationships; Y412 adds configurable 2-, 4-, and 8-channel master/slave control. Y401WG-L carries WG26 to WG80 data between an access-control reader and controller and provides optional auxiliary bidirectional I/O channels. No SIM card, Internet connection, or LoRaWAN gateway is required for the Y401/Y402/Y403/Y412 links. Actual range depends on antenna installation, obstructions, interference, and site conditions.

For model-code rules, topology comparison, and model selection, use the Y401 / Y402 / Y403 Selection Guide. This page provides the family overview, model directory, and document entry points.

Model Directory

Digital I/O Models

Product image	Model	DI	DO	Control relationship	Documents
	Y401-11-L	1	1	Point-to-point (A ↔ B)	Manual · Specification
	Y401-22-L	2	2	Point-to-point (A ↔ B)	Manual · Specification
	Y401-44-L	4	4	Point-to-point (A ↔ B)	Manual · Specification
	Y401-99-L	9	9	Point-to-point (A ↔ B)	Manual · Specification
	Y402-11-L	1	1	One-to-many (master ↔ slaves)	Manual · Specification
	Y402-44-L	4	4	One-to-many (master ↔ slaves)	Manual · Specification
	Y402-41-L	4 master / 1 slave	4 master / 1 slave	One-to-many, 4-to-1 mapping	Manual · Specification
	Y403-11-L	1 per node	1 per node	Auto Relay	Manual · Specification
	Y412-22/44/88-L	2 / 4 / 8	2 / 4 / 8	Configurable master/slave; unidirectional or bidirectional	Manual · Specification

Handheld LoRa Controllers

Y406 provides handheld LoRa control in 2-, 4-, 6-, 8-, and 16-circuit models with a 9–72 V DC supply. PLC expansion-board firmware provides Modbus RTU key-state reads over RS485; relay-controller commands depend on the supplied firmware.

Product image	Series / accessory	Selection	Documents
	Y406-22/44/66/88/GG-L	2 / 4 / 6 / 8 / 16 circuits; 9–72 V DC	Specification · User Manual
	Y406T-44-L	Handheld remote shown with Y406-44-L; select the key layout when ordering	Controller Specification

Wiegand Signal Extension

Y401WG-L is a point-to-point wireless Wiegand module rather than a LoRa I/O module. Use the standard matched pair of two modules to carry access-control reader data to a remote controller.

Product image	Model	Signal path	Wireless link	Range planning value	Documents
	Y401WG-L	WG26 to WG80 + optional auxiliary I/O	Point-to-point RF, 433 to 473 MHz	Approx. 500 m line of sight in an open area with the supplied rod antenna; approximately 1,000 m line of sight in an open area with the optional external antenna	Specification · User Manual

Analog I/O Models

Both analog models use a point-to-point link and have no DI or DO channels. Channel counts below are per module.

Product image	Model	AI	AO	Signal type	Supply	Documents
	Y401-0011-L	1	1	4-20 mA	9-36 V DC	Manual · Specification and wiring diagrams
	Y401-0044-L	4	4	4-20 mA or 0-10 V	9-36 V DC	Manual · Specification and wiring diagrams

Both analog models have no digital I/O on either side: Y401-0011-L has 1 AI and 1 AO per device, and Y401-0044-L has 4 AI and 4 AO per device. Select the required analog signal option when ordering and use the supplied model configuration for wiring.

Each specification includes two-, three-, and four-wire current connection examples. The Y401-0044-L specification also describes 0-10 V wiring; the two-wire current-loop example applies only to 4-20 mA.

Y412 — Configurable Wireless I/O Module

Y412 is the configurable multi-channel member of the Wireless I/O Module family. Choose 2DI + 2DO, 4DI + 4DO, or 8DI + 8DO hardware, then set the master/slave role and control mode for the site. Bidirectional follow and unidirectional feedback modes support remote start/stop, valve and pump control, lighting groups, and other auxiliary relay applications.

Selection point	Y412 options
Channel count	2, 4, or 8 DI + DO per module
Control mode	Master/slave; unidirectional feedback or bidirectional follow
Output action	Momentary or latching
Power versions	8–28 VDC or 85–265 VAC
Relay output	Form A, up to 5 A at 250 VAC or 30 VDC
Range planning	Up to 5 km standard; 10 km option available for selected configurations*

See the Y412 Specification and Y412 User Manual for wiring, DIP settings, and commissioning.

Related Field-Ready Products

For a complete enclosure, power system, and field interface built around the wireless link, see the Y901 Integrated Multi-Point Wireless Alarm System and Y953 Wireless Control Cabinet. These are complete products, not additional Wireless I/O Module SKUs.

Document Map

Use the Y401 / Y402 / Y403 Selection Guide for model naming, topology comparison, and selection. For wiring, pairing, and commissioning, use the manuals linked in the model directory. Use each model specification for exact I/O, power, range, relay, analog-signal, and environmental limits.

For Y406 installation, remote operation, RS485 / Modbus RTU PLC communication, and troubleshooting, see the Y406 Specification and Y406-22/44/66/88/GG-L User Manual.

For Y412 wiring and commissioning, see the Y412 User Manual.

For analog installation and commissioning, use the Y401 Analog I/O User Manual. For model-specific limits, use the Y401-0011-L and Y401-0044-L specifications.

For Y401WG-L Wiegand wiring, channel configuration, commissioning, and troubleshooting, see the Y401WG-L Specification and Y401WG-L User Manual.

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• Manufacturer: Hunan YenGear Tech Co., Ltd.
• Email: [email protected]
• Website: www.yengear.com