TTL to RS485 Level Serial UART Module

TTL to RS485 level serial UART module

SCM TTL to RS485 module 485 to serial UART level Huzhuan automatic hardware flow control.  The entire network of 3.3V and 5.0V power supply, signal perfectly compatible RS485 automatic flow control module Without "collection - made" control, with the use of this module is as simple as you operate the serial

Module Highlights TTL to RS485:

• 3.3V perfectly compatible with 5.0V power supply
• 3.3V and 5.0V signal perfectly compatible
• Absolute using imported chips, industrial grade design, excellent robustness, while using more efficient 485 lightning protection design, can be used in harsh industrial field and field of environment, working temperature of -40 ℃ to + 85 ℃, the transmission distance of up to kilometers (850 meters with 2 * 1.5 cable to do the test, it is recommended to use in the 800 meters, more than 800 m please add repeaters)
• semi-hole process design, thickness of 0.8mm, makes it easy to use as a picture board, can be welded using terminals
• having RXD, TXD signal lights, panoramic view of the transceiver status

Module Features TTL to RS485:

• This module fully into account the 485 bus lightning protection design and anti-jamming design , in the wild, long-distance transmission, the module "earthed" side to earth, it can play a good role of interference and lightning protection make 485 buses safer; we can not connect with the ground when the indoor short-distance transmission.
• using the standard 2.54 pitch design, easy secondary development
• having a 120 Euro matching resistor, shorting R0 to enable termination resistors, when long-distance transmission is recommended shorting.
• Support multi-machine communication, allowing access at up to 128 on a device bus
• The modules can be hot-swappable, it does not appear other 485 chips hot plug signal dead bolt phenomenon
• a large area of copper to prevent signal interference