This product is a TTL to RS485 module, designed with industrial grade design, fully considering the lightning protection and anti-interference design of the 485 bus. When transmitting over long distances in the field, connecting the “grounding” end of the module to the ground can play a good role in anti-interference and lightning protection, making the 485 bus safer; Indoor short-range transmission can be carried out without connecting to the ground.
Product Features:
Input voltage: DC3.3V-5.5V
Baud rate: Supports 110-128000bps
Compatible with 3.3V and 5.0V signals
Working temperature: -40 ℃ to+85 ℃
Equipped with RXD and TXD signal indicator lights
Adopting a standard 2.54mm spacing design for easy secondary development
Supports multi machine communication and allows connection to buses with up to 128 devices
Support hot swapping
Large area copper laying to prevent signal interference
Equipped with a 120 ohm matching resistor, short circuiting R0 can enable the matching resistor. Short circuiting is recommended for long-distance transmission
