DB9-S/P space saving connector
RS-232C data interface fully compatible with PC
DB9 connector and terminal are optional to RS-422 interface
Automatic direction control of transmitting data (TXD), zero-latency design
Working mode :Asynchronous half duplex
High efficiency serial port electricity stealing technology, need no external power supply, real three line (TD, RD, GND) mode communication
Communication speed: 0-115.2kbps
ransmission distance: 0-1200 meter@24AWG>