4.5 Feet RS232 DB9 9pin Data Serial Cable Male to Female DB9 Extension Cable 2-3 Cross Cable for Computers, Printers, Scanners

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: 137 cm/4.5 ft. 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

• DB9 serial cable RS232 male to female 2-3 cross 9-pin data extension cable is used for two computer to access each other, two devices communicate without data transmission conflict, send and receive signals to cross to ensure correct data transmission
• DB9 serial cable allows you to flexibly expand computer peripherals where needed, each extension cable is fully shielded to prevent unnecessary EMI/RFI interference,Connector thumbscrews provide quick and easy connection every time.
• DB9 serial cable uses high-quality nickel-plated connectors and plugs and a high-quality PVC injection housing，With wear-resistant, durable, smooth transmission and other functions
• cross serial cable refers to 2-pin and 3-pin communication, 3-pin and 2-pin communication, and the cable length is 4.5 feet
• Suitable for connection and signal transmission of computers and tax control machines, CNC machine tools, PDAs, set-top boxes and other serial devices