1.① Pin (DCD) data carrier detection, ② pin (RXD) receive data, ③ pin (TXD) transmit data, ④ pin (DTR) data terminal preparation, ⑤ pin (SG) signal ground, ⑥ pin (DSR) data device preparation OK, ⑦ pin (RaS) request to send, ⑧ pin (CTS) clear to send, ⑨ pin (RI) ringing indication.
2.The DB9 extension cable can extend your existing connection or replace the cable that restricts you.
3.uses high-quality nickel-plated connectors and plugs and a high-quality PVC injection housing，With wear-resistant, durable, smooth transmission and other functions.
4.This cable's fully molded connector with thumbscrews can provide you with a quick and convenient connection every time. Just loosen the screw to disconnect, then connect and tighten firmly to make the connection.
5.It is recommended not to insert or unplug a serial port while it is energized.When inserting or unplugging the serial port, at least one end should be cut off, otherwise the serial port may be easily damaged.
6.Cable length:260 cm/8.5 feet .
7.Suitable for connection and signal transmission of computers and tax control machines, CNC machine tools, PDAs, set-top boxes and other serial devices.
8.Packing quantity; 1 X DB9 serial cable