· Product Introduction

SPC1023-NB is an industrial-grade isolated USB-to-serial module designed to bridge computer USB interfaces with physical serial ports, enabling seamless data conversion and facilitating communication between different devices. It incorporates high-speed isolation chips to ensure signal isolation between USB and RS-232/RS-485 interfaces.

Equipped with dual level conversion chips, the module supports flexible bidirectional conversion between USB and RS-422/RS-485 signals. It is compatible with Windows, Linux, and Mac OS systems, allowing for easy setup and operation. The module is housed in a flame-retardant plastic casing, enhancing operational safety.

The internal circuitry is meticulously engineered with optimized impedance matching for critical signal paths, minimizing signal attenuation during high-speed data transmission. It also features a built-in 200mA self-resetting fuse that automatically disconnects when current exceeds 200mA, providing reliable protection for both the device and the USB port.

Requiring independent power supply, the module supports DIN 35mm standard rail mounting for simple on-site installation and flexible deployment in various field applications.

· Basic Parameters

Input Interface   USB-B interface | PC-side: USB 2.0

Output Interface Device: RS422/RS485 Serial Signal

Interface Chip   FT232, FTDI

Communication Distance 1200m (typical)

Operating Mode RS422 Asynchronous Full-Duplex

                                RS485 Asynchronous Half-Duplex Differential

Transmission Rate   RS422/RS485: 1Mbps

Power Supply   USB port, DC 5V

Current Consumption ≤100mA

Intelligent Burnout Protection   Built-in 200mA resettable fuse

Protection Rating 600W TVS / GDT Protection

Cascade Capability  Supports cascading of up to 128 RS485 devices

Load Capacity  Supports point-to-multipoint communication

                                RS485: 1 host supports 32 devices

                                RS422: 1 host supports 10 devices

Compatibility    Compatible with Windows XP, Windows 7/8/10/11, Linux, and Mac OS

Isolation Voltage 3000 VDC

Electromagnetic Compatibility  Complies with GB/T 18268.1 (IEC 61326-1)

· Environmental Conditions

Operating Temperature -40℃～+80℃

Storage Temperature -40℃～+85℃

Relative Humidity 10%～90%RH (non-condensing)

Atmospheric Pressure 80kPa～106kPa