· Product Introduction

The SPC1021-KB is an isolated USB-to-serial communication module. Its core function is to bridge the gap between a computer's USB interface and a physical serial port, enabling data conversion between the two and facilitating communication between different devices. It features a built-in high-speed isolation chip that isolates USB and RS485/RS232 signals.

The module incorporates two built-in level conversion chips, enabling flexible conversion between USB, RS232, and RS485 levels. Compatible with Windows, Linux, and Mac OS, it offers easy connection and convenience. Its flame-retardant plastic housing enhances safety during operation.

The module's internal circuitry is meticulously designed, with optimized impedance matching in key signal paths to minimize signal attenuation during high-speed data transmission. The module also features a built-in 200mA auto-recovery fuse that automatically disconnects when current exceeds 200mA, protecting both your device and the USB port.

· Basic Parameters

Input Interface PC: USB 2.0

Output Interface Device: RS232 and RS485 serial signals

Interface Chip   FT232 FTDI Chip

Communication Distance RS232: 15m (typical)

RS485: 1200m (typical)

Operating Mode RS232 Asynchronous Full-Duplex

                                RS485 Asynchronous Half-Duplex Differential

Transmission Rate RS232/RS485: 1Mbps

Power Supply USB port, DC 5V

Current Consumption ≤100mA

Intelligent Burnout Protection Built-in 200mA resettable fuse

Protection Rating RS232:±15kV ESD

RS485: 600W TVS

Load Capacity Supports point-to-multipoint, 485:1 with 32, 232:1 pairs 1

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

Isolation Voltage  3000VDC

· Environmental Conditions

Operating Temperature -40℃～+80℃

Storage Temperature -40℃～+85℃

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

Atmospheric Pressure 80kPa～106kPa