s485 to ttl module ttl to rs485 signal converter 3v 5.5v insulated chip serial port uart industrial grade module

characteristics: 1. wide voltage input 3 ~5.5v,3.3v system is compatible with 5v system, 3.3v or 5v communication signals may be similar. 2. the feed and signal are completely isolated, high emc and emi performance, isolation voltage up to 2500vdc. three. with original insulation chip, industrial quality design, strong anti-interference capability, and at the same time establishing a powerful protection design, can be used in industrial sites or in more complex environments in the field, work