Wireless I/O Sync Module Selection Guide

The Y4xx series wireless I/O sync modules use LoRa modulation to replace long-distance control wiring. Models are grouped by architecture: point-to-point (Y401), one-to-many (Y402), mesh linkage (Y403), and synchronous switching (Y412). All models support dry contact / NPN inputs and SPDT relay outputs, with no SIM card or subscription required.

At a Glance

	Model	I/O	Architecture	Range	Key Specs
	Y401-11-L	1DI 1DO	Point-to-point	5000 m	277 VAC / 5 A 88 x 37 x 59 mm 9-36 VDC
	Y401-22-L	2DI 2DO	Point-to-point	5000 m	277 VAC / 5 A 88 x 72 x 59 mm 9-36 VDC
	Y401-44-L	4DI 4DO	Point-to-point	5000 m	277 VAC / 5 A 88 x 72 x 59 mm 9-36 VDC
	Y402-11-L	1DI 1DO	One-to-many	5000 m	277 VAC / 5 A 88 x 72 / 37 mm 9-36 VDC
	Y402-44-L	4DI 4DO	One-to-many	5000 m	277 VAC / 5 A 88 x 72 x 59 mm 9-36 VDC
	Y402-4411-L	1DI 1DO (M) 4DI 4DO (S)	One-to-many (1-to-4)	5000 m	277 VAC / 5 A 88 x 37 / 72 mm 9-36 VDC
	Y403-11-L	1DI 1DO	Mesh network	5000 m	277 VAC / 5 A 88 x 37 x 59 mm 9-36 VDC
	Y412-22/44/88-L	2DI 2DO / 4DI 4DO / 8DI 8DO	Sync switching	10 km	250 VAC / 7 A 108 x 87.5 x 65 mm DC 12-36V / AC 85-265V

Y401 Series (Point-to-Point)

Best for: Simple bidirectional control between two fixed points with no configuration required.

Feature	Specification
Architecture	Point-to-point (Device A <-> Device B)
I/O options	1 / 2 / 4 channels
Communication range	Up to 5000 m (open area)
Relay rating	277 VAC / 5 A or 28 VDC / 5 A
Power supply	9-36 VDC
Operating temperature	-20 to +85 C
Mounting	35 mm DIN rail
Setup	Factory paired, plug-and-play

Y402 Series (One-to-Many)

Best for: One central controller driving multiple remote points with bidirectional signaling.

Feature	Y402-11-L	Y402-44-L	Y402-4411-L
Master I/O	1DI / 1DO	4DI / 4DO	1DI / 1DO
Slave I/O	1DI / 1DO	4DI / 4DO	4DI / 4DO
Channel mapping	1-to-1	1-to-1	1-to-4
Communication range	5000 m	5000 m	5000 m
Relay rating	277 VAC / 5 A	277 VAC / 5 A	277 VAC / 5 A
Power supply	9-36 VDC	9-36 VDC	9-36 VDC
Operating temperature	-20 to +85 C	-20 to +85 C	-20 to +85 C
Setup	Factory paired, expandable	Factory paired, expandable	Factory paired, expandable

Y403 Series (Mesh Network)

Best for: Multi-point coordinated control with automatic relay extension, such as emergency stop and tunnel lighting.

Feature	Specification
Architecture	Mesh network (multi-node linkage)
I/O	1DI / 1DO per node
Communication range	5000 m + automatic relay extension
Relay rating	277 VAC / 5 A or 28 VDC / 5 A
Power supply	9-36 VDC
Operating temperature	-20 to +85 C
Logic	Any node trigger energizes all nodes; all inputs must open to reset
Setup	Nodes auto-relay without manual routing

Y412 Series (Synchronous Switching)

Best for: Fast-deployment replacement for long cross-area control wiring with the longest range and highest relay capacity.

Feature	Y412-22-L	Y412-44-L	Y412-88-L
I/O	2DI / 2DO	4DI / 4DO	8DI / 8DO
Communication range	10 km (open area)	10 km (open area)	10 km (open area)
Relay rating	250 VAC / 7 A or 30 VDC / 7 A	250 VAC / 7 A or 30 VDC / 7 A	250 VAC / 7 A or 30 VDC / 7 A
Power options	DC 12-36V or AC 85-265V	DC 12-36V or AC 85-265V	DC 12-36V or AC 85-265V
Operating temperature	-40 to +85 C	-40 to +85 C	-40 to +85 C
Setup	DIP switch commissioning, local push-buttons	DIP switch commissioning, local push-buttons	DIP switch commissioning, local push-buttons
Modes	Master/slave, bidirectional, unidirectional, momentary, latching	Master/slave, bidirectional, unidirectional, momentary, latching	Master/slave, bidirectional, unidirectional, momentary, latching

Series Comparison

Criterion	Y401 Series	Y402 Series	Y403 Series	Y412 Series
Device topology	Device A + Device B	1 master + N slaves	N nodes	1 master + N slaves
Communication range	5000 m	5000 m	5000 m + relay	10 km
Channel options	1 / 2 / 4	1 / 4 / 1-to-4	1	2 / 4 / 8
Relay rating	277 VAC / 5 A	277 VAC / 5 A	277 VAC / 5 A	250 VAC / 7 A
Power supply	9-36 VDC	9-36 VDC	9-36 VDC	DC 12-36V / AC 85-265V
Temperature	-20 to +85 C	-20 to +85 C	-20 to +85 C	-40 to +85 C
Setup complexity	None (factory paired)	Low (factory paired, expandable)	Low (auto-relay)	Medium (DIP config)
Key benefit	Simplest deployment	Flexible expansion	Multi-node linkage	Longest range, highest relay capacity

Documents

Model	Specification	User Guide
Y401-11-L	Specification	-
Y401-22-L	Specification	-
Y401-44-L	Specification	-
Y402-11-L	Specification	-
Y402-44-L	Specification	-
Y402-4411-L	Specification	-
Y403-11-L	Specification	-
Y412-22/44/88-L	Specification	User Guide

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