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PCI-485I-2 Request for Availability
PCI-485I/2, 2-Port, 800 mA, Serial Interface
Rated 5/5 | 12 ratings
Actual item may vary if no part number is provided on quote request.
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March 2025
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January 2025
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May 2025
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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 PCI-485I/2 Serial Interface
The National Instruments PCI-485I/2 (Part Number: 777853-02) is a 2-Channel, Isolated Serial Interface. This model is an asynchronous interface that can be used for communications with serial port equipped instruments. The user can attach as many as 31 devices to the PCI-485I/2 through a serial cable. This model has a DB-9 male connector with standard pin allocations for RS232 and RS485 connectors.
The NI PCI-485I/2 offers 460.8 kb/s maximum transfer rate. This Serial Interface comes with 64 Bytes FIFO buffer. The two channels on this device remain optically isolated from one another. This device is designed for 3.3 V and 5 V PCI slots. Since it is a plug-and-play serial interface, the PCI-485I/2 offers a straightforward, switchless configuration experience. In typical operating conditions, it draws 800 mA of current from PCI, while the maximum current drawn is 1300 mA.
The National Instruments PCI-485I/2 can be installed on any Windows 2000/NT/XP/Me/9x based personal computer. Users can utilize this device as a standard serial port through their existing applications. Moreover, development environments including Visual C++, Visual Basic, and NI LabVIEW can also be used with the NI PCI-485I/2. This serial interface features integrated data line ESD protection for up to 15 kV surges.
For the PCI-485I/2, the “I” indicates that this serial interface has isolation capabilities. The standard version, PCI-485/2, (Part Number: 777641-02) is a non-isolated serial interface. There is also a 4-Channel variation, PCI-485/4 (777641-04) and an 8-Channel variation, PCI-485/8. The basic specifications of all PCI-485 variations are similar.
| Model | PCI-485I/2 |
|---|---|
| Manufacturer | National Instruments |
| Part Number | 777853-02 |
| Type | Serial Interface |
| Ports | 2 |
| Typical Current | 800 mA |
| FIFO Size | 64 B |
| Dimensions | 4.2 × 6.9 in. |
| I/O Connector | DB-9 male connector |
| Warranty | 2-3 Year Warranty |
| PCI-485I/2 Manual | User Manual and Maintenance Manual Available for Download |
| Price | Contact a sales representative for a quote. |
Associated part numbers for PCI-485I-2:
National Instruments PCI-485I/2 Frequently Asked Questions
Question: Which signals is the PCI-485I/2 compatible with?
Answer: The PCI-485I/2 is compatible with CTS, RXD, RTS, GND, and TXD signals.
Question: Does the NI PCI-485I/2 have a DB-9 adapter included?
Answer: No, the NI PCI-485I/2 does not have a DB-9 adapter included.
Question: Which driver software is meant for the PCI-485I/2?
Answer: NI-Serial driver software can be used with the PCI-485I/2.
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