【Six Communication Modes】 Supports USB to TTL(3.3V/5V), RS232, RS485, and more; 12Mbps full speed USB 2.0; compatible with Windows Linux Mac; Suitable for industrial control and embedded development
【Robust ESD Protection】 Built-in ±15kV ESD protection; ensures reliable performance in harsh Settings; suitable for industrial equipment and system debugging
【Wide Operating Temperature】 Operates from -40°C to +85°C; designed for industrial grade applications; stable performance in extreme conditions
【Easy Setup and Compatibility】 Plug-and-play with no driver required; supports LabVIEW, MATLAB, STM32, for Arduino, for Raspberry Pi; simple configuration via DIP switch
【Low Power and High Accuracy】 Low power consumption with 1.8µA sleep mode; adjustable baud rate up to 1Mbps; accurate data transmission for reliable communication

Product Parameters

Input Voltage: 5V DC (USB bus-powered)

Protocol Support: USB 2.0 Full-Speed (12 Mbps), UART/TTL (3.3V/5V), RS232 (±10V), RS485 (Differential)

Baud Rate: 300 bps – 2 Mbps (Software Adjustable)

ESD Protection: ±15 kV (Anti-Static)

Operating Temperature: -40°C to +85°C (Reliable)

Dimensions: 55mm × 28mm (With DIP Switch & Terminal)

🔧 Key Pin Functions (Hardware Interface)

TTL UART:

TXD: TTL Transmit (3.3V/5V Output)

RXD: TTL Receive (3.3V/5V Input)

3V3: 3.3V Power Output (100mA Max)

RS232:

232T: RS232 Transmit (±10V)

232R: RS232 Receive (±10V)

RS485:

A+: Differential Signal Positive

B-: Differential Signal Negative

Power Pins:

5V: 5V Output (500mA Max)

GND: Ground

❓ Frequently Asked Questions

1.
Q: Computer fails to recognize the device?

A: Install official CP2102 drivers (Silicon Labs website) or replace USB data cable .

2.
Q: RS485 communication unstable?

A: Enable 120Ω terminal resistor via DIP switch; check A+/B- wiring .

3.
Q: TTL level mismatch with target device?

A: Switch voltage selector to 3.3V/5V (Default: 5V) .

4.
Q: No response in RS232 mode?

A: Verify cross-connection of TX/RX pins; avoid cables >15 meters .

5.
Q: Conflicts in multi-device networks?

A: Assign unique addresses in RS485 mode; disable unused interfaces

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