Jopto 3PCS TTL To RS485 Module MCU Development Converter Module Board Accessories Accessory Removable Replacement 485 to Serial Port UART Level Mutual Conversion

• With plus or minus 15KV ESD protection.
• The chip has a limited slew rate driver to reduce EMI and reduce signal reflection caused by improper terminal matching cables, so that the error-free signal transmission rate is as high as 500Kbps.
• Receiver input impedance with 1/4 unit load, supports multi-machine communication, and allows connection to the bus with no more than 128 devices.
• This module can be hot-swapped, and there will be no signal plugging phenomenon caused by hot-swapping.
• The power supply uses SMD tantalum electrolytic capacitors, and double capacitors are used for high and low frequency power filtering.

Feature: 1. ESD protection with plus or minus 15KV. 2. The chip has a limited slew rate driver to reduce EMI and reduce signal reflection caused by improper terminal matching cables, so that the error-free signal transmission rate is as high as 500Kbps. 3. Receiver input impedance with 1/4 unit load, supports multi-machine communication, and allows connection to the bus with no more than 128 devices. 4. The operating temperature can reach -40°C to +85°C. 5. This module can be hot-swapped, and there will be no signal plugging phenomenon caused by hot-swapping. 6. The power supply uses SMD tantalum electrolytic capacitors, and double capacitors are used for high and low frequency power filtering. 7. Using dual transient suppression diodes, excellent overvoltage protection performance. 8. Use 10Ω current protection resistor, patch design to improve 485 signal integrity. 9. With terminals and welding lead holes, it is convenient to debug and finalize the wiring, and the welding leads can improve the reliability of the signal. 10. All RS485 and TTL signals are routed on one side to ensure signal quality and improve signal integrity. 11. Spread copper on a large area to prevent signal interference. 12. With 2.54 pitch hole plate welding holes, it is convenient for your secondary development. 13. It has M3 screw holes that are quite commonly used at present, which is convenient and reliable to install. 14. With 120Ω termination resistance, short-circuit R16 to enable termination resistance. 15. With power supply and RXD and TXD signal indicators, you can have a panoramic view of the receiving and sending status. 16. The angled pins are led out for easy testing. 17. Support 3.3V and 5V signal control, with strong compatibility. Specification: Model: TTL To RS485 Module Size: 58 × 22.3 × 14 mm Weight: 7g Package Content: 3 x TTL To RS485 Module