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)	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 operation for relay-controlled equipment in 2-, 4-, 6-, 8-, and 16-circuit versions. Choose the controller and power version for the load. The specification lists dimensions, interfaces, and the RS485 protocol limits.

Product image	Series / accessory	Selection	Documents
	Y406-22/44/66/88/GG-L	2 / 4 / 6 / 8 / 16 circuits; 12 V DC / 24 V DC / 220 V AC versions	Specification · Technical 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	Specification and wiring diagrams
	Y401-0044-L	4	4	4-20 mA or 0-10 V	9-36 V DC (4-20 mA); 12-36 V DC (0-10 V)	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 Datasheet 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. Use the Y401 / Y402 / Y403 User Manual for shared digital wiring, pairing, antenna installation, and commissioning. Use each model specification for exact I/O, power, range, relay, analog-signal, and environmental limits.

For Y406 pairing, key modes, RS485 reference frames, and PLC control examples, see the Y406 Specification and Y406 Technical Manual.

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

For analog model wiring and current product details, use the dedicated 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