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Product Features of this module

1. We guarantee that all chips are brand new, original imported industrial grade chips, with ultra long distance transmission up to thousands of kilometers.

2. ESD protection with positive and negative 15KV

3. The chip has a limited swing rate driver program that minimizes EMI and reduces signal reflections caused by inappropriate terminal matching cables, resulting in an error free signal transmission rate of up to 500Kbps.

4. Receiver input impedance with 1/4 unit load, supports multi machine communication, and allows connection to the bus of 128 devices.

5. The working temperature of industrial grade chips can reach -40 ℃ to+85 ℃.

6. This module can be hot plugged without the signal jamming phenomenon that occurs during hot plugging of other 485 chips.

7. The power supply uses surface mount tantalum electrolytic capacitors and dual capacitors for high and low frequency power filtering

8. Using dual transient suppression diodes for better overvoltage protection performance

9. Using a 10 Ω current protection resistor and surface mount design to improve 485 signal integrity

10. Equipped with terminals and soldering lead holes for easy debugging and final wiring, soldering leads can improve signal reliability

11. RS485 and TTL signals are all single-sided wired to ensure signal quality and improve signal integrity

12. Large area copper laying to prevent signal interference

13. With 2.54 spacing hole plate welding holes, it is convenient for your secondary development

14. Equipped with commonly used M3 screw holes, easy and reliable installation

15. Equipped with a 120 Ω termination resistor, short circuit R16 to enable the termination resistor

16. Equipped with power supply and RXD, TXD signal indicator lights, providing a comprehensive view of the transmission and reception status

17. Bent corner pins for easy testing

18. Supports 3.3V and 5V signal control, with stronger compatibility

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