Enhance your automation and control systems with this high-performance Expansion Board, designed for reliable and versatile operation in smart homes, security surveillance, and industrial applications. Crafted from durable PCB material, the N4D3E16 model features 16 isolated input channels and 16 Darlington transistor outputs, enabling precise remote control and seamless integration via RS485 bus communication. Key Features: · Simple and Reliable Wiring: The power module circuit has been meticulously debugged to ensure simple PCB wiring with minimal interference, providing stable and consistent performance. · 16 Channel Input and Output: Supports 16 isolated input ports (NPN active low) and 16 Darlington outputs (ULN2803 NPN), allowing extensive control capabilities for complex systems. · Multi-Function Commands: Equipped with six versatile commands including open, close, instantaneous, self-locking, interlocking, and delay, offering strong and flexible functionality for various automation needs. · Remote Control via RS485 Bus: The 16 channel input can remotely control 16 channels of output on another board through RS485 communication, with configurable registers for customized operation. · Wide Compatibility: Supports RTU instructions and function codes 03 and 06, with some registers compatible with up to 16 function codes, enhancing communication flexibility. · Adjustable Delay Function: The delay command supports a maximum delay of up to 255 seconds, ideal for timed control scenarios. · Easy Installation: Compact design with mounting holes and compatibility with DIN35 and C45 rail installations ensures convenient and secure mounting in control cabinets. · High Load Capacity: Each output channel supports a maximum load current of 300mA, suitable for driving various devices such as LED light drivers, network cameras, and automatic curtains. · Scalable System Integration: Supports parallel connection of up to 64 devices, enabling extensive system expansion for large-scale automation projects. · Configurable Baud Rate: Default baud rate set at 9600BPS with jumper-selectable options including 2400, 4800, 9600, and 19200BPS to match diverse communication requirements. Specifications: · Item Type: Expansion Board · Model: N4D3E16 · Material: PCB · Working Voltage: DC 6.5-30V (compatible with 7.5V, 9V, 12V, 15V, 24V) · Working Current: 8-50mA · Input Ports: 16 isolated channels (NPN active low) · Output Channels: 16 Darlington transistor outputs (ULN2803 NPN) · Maximum Load Current per Channel: 300mA · Communication: RS485 bus, RTU instruction support, function codes 03, 06, and partial 16 · Delay Command Maximum Time: 255 seconds · Baud Rate: 2400, 4800, 9600, 19200BPS (jumper selectable, default 9600BPS) DIN Rail Box Parameters: · Model: UM72 · Color: Green · Width: Approximately 72mm (suitable for PCB width UM72) · Backplane Length: Approximately 100mm · Insulation Grade: Flame retardant VO grade · Installation Method: Compatible with DIN35 and C45 rails Package Includes: · 1 x Expansion Board N4D3E16 This Expansion Board is an ideal solution for PLC IO expansion, smart home automation, security surveillance systems, network cameras, LED light drivers, and automatic curtain controls. Its robust design, versatile command set, and easy installation make it a reliable and efficient choice for both professional and DIY automation projects.