RS232 to RS485/422 converters, lightning protection, anti-discharge, 5Km UT-501

1. Interface characteristic: compatible the standards of RS-232C and RS485/RS-422 issued by EIA/TIA.2. Electric interface: DB9 female connector for RS-232 interface input end, and 10PIN connector for RS-422/RS-485 interface output end.3. Protection grade: +/-15KV ESD protection for RS-232 interface, and...