all the chips we guarantee that new imported industrial chip, ultra-long-distance transmission of up to a kilometer.
positive and negative 15KV ESD protection
the chip has a slew rate of the driver, to minimize EMI, and reduce signal reflections from improper termination caused the cable so that no error signal transmission rate of up to 500Kbps.
the receiver input impedance 1/4-unit load, supporting multi-machine communication, allowing access up to 128 devices on a bus.
Industrial chip temperature can reach -40 � to + 85 �.
the modules can be hot-swappable, hot-swap does not occur other 485 chip signal appears dead bolt phenomenon.
Power chip tantalum electrolytic capacitors, and high frequency using a dual power supply filter capacitor
using a dual transient suppression diodes, overvoltage better performance

using 10? current protection resistors, chip design improves signal integrity 485

with terminals and welding wire holes to facilitate debugging and final finalize wiring, welding wire can improve signal reliability

RS485, TTL signal all-sided alignment and ensure signal quality, improve signal integrity

large area of copper to prevent signal interference with a 2.54 pitch tunnel plate welded holes to facilitate your secondary development has now quite common M3 screw holes for easy installation and reliable with a 120? termination resistor shorted to enable the termination resistor R16 with power and RXD, TXD signal lights, send and receive status panoramic view
angled pin leads, easy to test
support 3.3V and 5V signal control, compatibility stronger