Gender Changer 9 Pin Male - Male Male  - Female Female  - Female Serial RS232 Adapter Coupler DB9

Features :

- There are two ways to connect RS232 serial cables: straight and crossover. Direct connection means connecting the transmit data line to the receive data line and the receive data line to the transmit data line; while crossover means connecting the transmit data line to the receive data line and the receive data line to the transmit data line. These two methods play different roles in data communication.

- Role of Direct Connection : Direct connection is used in the case of direct connection of devices, such as direct connection of a computer and a printer. In the case of a direct connection, the transmit data line at the sending end is connected to the receive data line at the receiving end for normal data transfer.

- Role of cross-connections: Cross-connections are used in situations where two devices are cross-connected, e.g., for connecting two computers, or for connecting debugging equipment. In the case of a cross-connection, the transmit data line of the sending end is connected to the transmit data line of the receiving end, and the receive data line of the receiving end is connected to the receive data line of the sending end to exchange data.

- DB9 Gender Changer Converter works with any serial device and can be used with PCs, modems, printers, scanners, cash registers, POS machines and many more DB9 serial communication devices.

- DB9 Male to Male，Male to Female，Female to Female Adapter, a quick and economical way to change the gender of a "D" port. Connect two female serial cables together, or convert a 9-pin female/male connection to a 9-pin male/female connection.

- The DB9 gender changer is plug and play, no power supply required. Tight and stable structure, low resistance transmission Stable low profile Space saving, change gender quickly, or connect two cables together!

- Each converter is molded and fully shielded to prevent any unwanted EMI/RFI interference from office equipment.

- The compact design facilitates portability and storage, is nickel-plated, and features precision-crafted connectors for enhanced corrosion protection, lossless signal, and long service life.