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July 2025
778255-01
NI 778255-01, ~600 mA from +5 VDC, Onboard Bus-Master DMA Support, PCI-GPIB-LP Instrument Control Device
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 778255-01 PCI-GPIB Instrument Control Device
The National Instruments 778255-01 (model name PCI-GPIB-LP) is a low-profile GPIB interface board providing an IEEE 488 connection between your PC and instruments. Built into very small spaces inside the PC case, as well as smaller desktop cases and low-profile chassis, this compact GPIB controller supports all the functionality provided by National Instruments’ standard-size PCI-GPIB board. It can be used with either 3.3V or 5V PCI slot configurations to fit virtually every type of motherboard produced since the introduction of the first PCI slots. The 778255-01 uses two chips internally—a TNT ASIC from National Instruments and a dedicated PCI interface chip—to handle the communication between the host computer and the GPIB instruments. The 778255-01 also manages the IEEE 488.2 Specified Roles of Controller, Talker, and Listner.
When utilizing the Standard Three-Wire IEEE 488.1 Handshake Method, the Data Transfer Rate on the 778255-01 is greater than 1.5 MB/s. However, when utilizing High Speed Non-interleaved Mode (HS488) developed by National Instruments, the Data Transfer Rate can be up to 7.7 MB/s. A built-in bus-master DMA engine transfers data from one memory location to another, thus allowing the host processors to focus on other operations instead of transferring data back and forth from instruments. No external power source is required because power is supplied by the +5VDC line from the host system at approximately 600 mA. All configuration options require only software-based operation and allow for "plug and play" operation, eliminating the need for jumpers or switches to set up the board for use, thereby making it easier to install in test environments.
In most applications, engineers will place the 778255-01 in test bays, calibration laboratories, and production lines where there is a requirement for a compact PC to control GPIB oscilloscopes, GPIB signal generators, GPIB power supplies, and GPIB multimeters. Due to its ability to provide identical performance compared to the full size PCI-GPIB board, users who have moved between different chassis sizes will find that they have retained similar driver and behavioral characteristics through their use of the NI-488.2 software. Therefore, this board should be considered a viable option for space-constrained industrial automation and instrumentation systems that require reliable GPIB connectivity.
| Model | 778255-01 |
|---|---|
| Part Number | 778255-01 |
| Part Type | Low-Profile GPIB Interface Board |
| Manufacturer | National Instruments |
| Brand | Emerson |
| Bus Interface | PCI (3.3 V / 5 V compatible) |
| Form Factor | Low-profile card |
| Controller Chipset | NI TNT ASIC |
| Transfer Rate (IEEE 488.1) | >1.5 MB/s |
| Transfer Rate (HS488) | >7.7 MB/s |
| DMA Support | Onboard bus-master DMA |
| Power Draw | ~600 mA from +5 VDC |
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