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July 2025
AT-485-2
AT-485/2, 2-Port, Serial Interface Card
Actual item may vary if no part number is provided on quote request.
✔ 2 Year Warranty Included
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Andrew Gar**** Verified Buyer
" Amazing to work with and had my order within 1 week after purchasing with all NI certs and data that were needed. "
March 2025
Said Sai**** Verified Buyer
" Competent contact for highly specialized components. The support team is very knowledgeable. Many thanks for the help and the fast shipping! "
January 2025
Bob C**** Verified Buyer
" Jason was able to get our emergency situation taken care of quickly and professionally. "
May 2025
Gregg Flecki**** Verified Buyer
" Great service and great products. This is my 2nd time using Apex Waves, truly impressed. "
January 2025
Carol Zimme**** Verified Buyer
" Very responsive and helpful, competitive pricing. Good source! "
July 2025
Andrew Gar**** Verified Buyer
" Amazing to work with and had my order within 1 week after purchasing with all NI certs and data that were needed. "
March 2025
Said Sai**** Verified Buyer
" Competent contact for highly specialized components. The support team is very knowledgeable. Many thanks for the help and the fast shipping! "
January 2025
Bob C**** Verified Buyer
" Jason was able to get our emergency situation taken care of quickly and professionally. "
May 2025
Gregg Flecki**** Verified Buyer
" Great service and great products. This is my 2nd time using Apex Waves, truly impressed. "
January 2025
National Instruments AT-485/2 Serial Interface Device
The AT-485/2 is a Serial Interface Device. The manufacturer of the AT-485/2 is National Instruments. The part number of the NI AT-485/2 is 777311-02. The NI AT-485/2 is associated with the group of USB interfaces.
The NI AT-485/2 has a metal baseplate with its hard-plastic case. The AT-485/2 is designed to alter a USB port with a serial port for communication purposes. RS-422 interface modules are used with these serial ports for communication. Super serial drivers are available in each interface. These drivers ensure robust performance and reliable sharing interruption between ports. The AT-485/2 is also capable of using RTS/CTS handshaking hardware lines. For this function, the AT-485/2 Serial Interface Device is deployed as a standard serial port. The NI AT-485/2 can work with standard PC serial ports. The compatible operating systems of the AT-485/2 are Windows 2000 and 9x. NI serial devices also be used as standard COM ports, which are compatible with program applications used for serial communications.
The AT-485/2 operates on super drivers to utilize advanced transceiver control behavior related to the RS-232/485 interface boards. USB interface boards are only operated in an indoor environment. The ambient temperature of all USB interfaces should be in the range of 0 to 70 °C. The AT-485/2 features LEDs placed at the transmitter as well as the receiver port. The NI AT-485/2 Serial Interface Device is equipped with a DB-9 input/output male connector for input/output interfaces. The external supply for the AT-485/2 device should be from 9 V to 30 V.
| Model | AT-485-2 |
|---|---|
| Manufacturer | National Instruments |
| Part Number | 777311-02 |
| Type | Serial Interface Card |
| Typical Current for External Supply | 225 mA |
| Standard Baud Rate | 460.8 kbps |
| Number of Ports | 2 |
| I/O Connectors | DB-9 male connectors |
| Driver Software | NI-Serial |
| FIFO Size | 16 B |
| Bus | ISA |
| AT-485/2 Manual | User Manual and Maintenance Manual Available for Download |
| Price | Contact a sales representative for a quote. |
Associated part numbers for AT-485-2:
National Instruments AT-485/2 Frequently Asked Questions
Question: How many devices can the AT-485/2 connect with at a time?
Answer: The AT-485/2 can connect with a maximum of 31 devices.
Question: What type of transmission lines does the NI AT-485/2 have?
Answer: The NI AT-485/2 has differential transmission lines.
Question: What is the maximum cable length that can be used with the AT-485/2?
Answer: The maximum cable length that can be used with the AT-485/2 is 4,000 ft.
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