The National Instruments AT-485/2 Serial Interface Device (Part Number: 777311-02) is engineered to facilitate seamless communication between USB and serial ports. This robust device features a metal baseplate enclosed in a durable hard-plastic case, ensuring stability and longevity in various environments. The AT-485/2 is equipped with two RS-422 interface modules that enable reliable data exchange, leveraging super serial drivers for optimal performance and effective port interruption management. The device supports RTS/CTS handshaking and operates as a standard serial port, making it compatible with typical PC serial ports and program applications for serial communications.

Designed specifically for indoor use, the AT-485/2 operates within an ambient temperature range of 0 to 70 °C. It features LED indicators at both the transmitter and receiver ports, enhancing user interface visibility. The I/O connector is a DB-9 male type, with an external power supply requirement of 9 V to 30 V and a typical current of 225 mA. Capable of achieving a standard baud rate of 460.8 kbps, this device utilizes NI-Serial driver software, ensuring comprehensive compatibility with operating systems such as Windows 2000 and 9x. For detailed usage guidance, user and maintenance manuals are available for download, and inquiries regarding pricing can be directed to a National Instruments sales representative. The AT-485/2 is backed by a warranty of 2-3 years, reinforcing its reliability for industrial automation and control applications.