Anonymous Verified Buyer
" Very responsive and helpful, competitive pricing. Good source! "
July 2025
PCI-485-4
PCI-485/4, 4-Port, Serial Interface Board
Actual item may vary if no part number is provided on quote request.
✔ 2 Year Warranty Included
✔ Free Domestic Ground Shipping
✔ NIST Calibration Available
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 PCI-485/4 Serial Interface
The PCI-485/4 (Part number: 777641-04) cards bolster RS485 interchanges and furthermore utilize differential adjusted drivers for long range and high noise insusceptibility. RS485 activity includes switchable handsets and the capacity to help different gadgets on a solitary "party line". The RS485 characterizes 32 gadgets maximum on a single line. The quantity of gadgets served on a single line can be extended by the utilization of "repeaters". RS485 communications require that one transmitter supply a predisposition voltage to guarantee a known "zero" state when all transmitters are off. Likewise, collector contributions at each finish of the system ought to be ended to wipe out "ringing". The card bolsters biasing as a matter of course and backings end by jumpers on the card.
In RS485 communications, the driver must be empowered and debilitated as required, enabling all cards to share a two wire link. The card controls the driver naturally. With programmed control, the driver is empowered when information is prepared to be transmitted. The driver remains empowered for one extra character's transmission time after information exchange is finished and is debilitated. The collector is regularly empowered, then incapacitated amid RS485 transmissions, and afterward re-empowered after transmission is finished (in addition to one character transmission time). The card consequently modifies its planning to the baud rate of the information.
The NI PCI-485/4 comes with I/O Connection: 9-stick male D-sub connectors, two shielded male D-sub 9-stick IBM AT style connectors compatible with RS-232(PCI-COM2S), RS-422 and RS-485 interfaces, a character length of 5, 6, 7, or 8 bits, and a parity (even, odd or none).
PCI-485/4 Obsolete Status has been announced by National Instruments, but it will still be available for purchase and repairs by Apex Waves.
| Model | PCI-485/4 |
|---|---|
| Manufacturer | National Instruments |
| Part Number | 777641-04 |
| Type | Serial Interface |
| Ports | 4 |
| Maximum Transfer Rate | 460.8 kb/s |
| FIFO Size | 64 Bytes |
| Dimensions | 4.2 x 5.8 in. |
| I/O Connector | 10-position jack |
| PCI-485/4 Manual | User Manual and Maintenance Manual Available for Download |
| Price | Contact a sales representative for a quote. |
Associated part numbers for PCI-485-4:
National Instruments PCI-485/4 Frequently Asked Questions
Question: What are the power requirements for the RS-422/485 PCI Card (PCI-485/4)?
Answer: The power requirements for the RS-422/485 PCI Card (PCI-485/4) are 700 mA typical current and 1300 mA maximum current at +5 VDC.
Question: Which type of I/O connector does the NI PCI-485/4 have?
Answer: The NI PCI-485/4 has 10-position jack I/O connectors.
Question: Which signal types are compatible with the PCI-485/4 device?
Answer: Only CTS, RXD, RTS, TXD, and GND signals are compatible with the PCI-485/4 device.
PCI-485-4 PDF Manuals
ARCHIVED--GETTING-STARTED-WITH-YOUR-PCI-SERIAL-HARDWARE-AND-SOFTWARE-FOR-WINDOWS-2000.PDF
ARCHIVED--GETTING-STARTED-WITH-YOUR-PCI-SERIAL-HARDWARE-AND-SOFTWARE-FOR-WINDOWS-95.PDF
ARCHIVED--GETTING-STARTED-WITH-YOUR-PCI-SERIAL-HARDWARE-AND-SOFTWARE-FOR-WINDOWS-98-95.PDF
ARCHIVED--GETTING-STARTED-WITH-YOUR-PCI-SERIAL-HARDWARE-AND-SOFTWARE-FOR-WINDOWS-ME-9X.PDF
ARCHIVED--GETTING-STARTED-WITH-YOUR-PCI-SERIAL-HARDWARE-AND-SOFTWARE-FOR-WINDOWS-NT.PDF
ARCHIVED--NI-SERIAL-HARDWARE-SPECIFICATIONS-GUIDE.PDF
NI-SERIAL-HARDWARE-SPECIFICATIONS-GUIDE.PDF
NI-SERIAL-LEGACY-HARDWARE-SPECIFICATIONS-AND-FEATURES-GUIDE.PDF
Delivery:
Eligible returns may be accepted within 30 days at Apex Waves’ discretion. A 25% restocking fee applies; non-refundable and built-to-order products are excluded.
Payment:
Receive Price & Availability Today!
Ask About Our Tiered Calibration Levels
Option & Modules:
Confirm Your Requirements or Versions
Cost & Lead Time Available Upon Request for Service
Repair Evaluation: $150
Common Typos:
Why Buy From Apex Waves:
