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July 2025
AT-232-2
AT-232/2, 2-Port, Serial Interface Card
Actual item may vary if no part number is provided on quote request.
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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
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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-232/2 Serial Interface Card
The AT-232/2 is a commonly used 2-port Serial Interface Card. The manufacturer of the AT-232/2 is National Instruments. The part number of the NI AT-232/2 is 777312-02.
A computer can be connected to multiple devices, either stand-alone or modular through three different interfaces which are: serial GPIB and Ethernet. The AT-232/2 allows the bit-by-bit transfer of data and connects the computer to other devices like modems, various peripherals and terminals. Faster and more reliable serial interface cards are being developed by National Instruments for more efficient and error-free communication between the devices. These are compatible with windows operating systems and are available in different configurations.
The AT-232/2 contains two ports. Each of these ports connects the Data Communication Equipment DCE or host equipment to Data Terminal Equipment DTE through D-sub Connector (DB9). Two male D-sub connectors can be attached to each AT-232/2 card. Thus, it requires a female D-sub cable to connect to the other device. The operating systems compatible with the AT-232/2 Windows 9x/ME/XP/200/NT. The AT-232/2 card runs on the RS-232 interface. It includes Ready to Send/Clear to Send RTS/CTS hardware handshake (HH) lines to ensure error-free decoding at receiver's end. The AT-232/2 can be turned-on via USB, so it doesn't need any external power source. The serial interface card provides RS-232 port (full-duplex) to the computer enabling bi-directional data transport. The bus that connects the AT-232/2 card is ISA bus. The FIFO size/depth of the AT-232/2 is 16 B, implying 16 B of data is required to buffer. The AT-232/2 has a high data rate of 115.2 kbps.
| Model | AT-232/2 |
|---|---|
| Manufacturer | National Instruments |
| Part Number | 777312-02 |
| Type | Serial Interface Card |
| Data Transfer Rate | 115.2 kbps |
| Data Link Protocol | RS-232 |
| Compatible OS | Microsoft Windows 95/98/ME/NT/2000/XP |
| Operating Temperature | 32 °F - 158 °F |
| Humidity Range | 10 - 90% |
| Height | 4.2 in. |
| Depth | 6.5 in. |
| AT-232/2 Manual | User Manual and Maintenance Manual Available for Download |
| Price | Contact a sales representative for a quote. |
Associated part numbers for AT-232-2:
National Instruments AT-232/2 Frequently Asked Questions
Question: What type of connectors are on the AT-232/2?
Answer: The AT-232/2 has DB-9 connectors.
Question: What is the power requirement of the NI AT-232/2?
Answer: The power requirement of the NI AT-232/2 is +5 VDC; 260 mA typical 340 mA maximum.
Question: Which types of signals are compatible with the AT-232/2?
Answer: The AT-232/2 is compatible with all signals.
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