Description
The National Instruments NB-GPIB-P/TNT IEEE 488 Interface Board is a key component from the NB Series tailored for integration with Macintosh NuBus computers, including models like the Centris 610. Unlike its counterpart, the NB-GPIB/TNT, this particular board does not support DMA, but it is equipped with a TNT4882C chip that endows it with the core functionalities of an IEEE 488 Controller, Talker, and Listener.
It utilizes NI-488.2 driver software for MacOS, transforming the Mac into a powerful GPIB Controller capable of full communication and bus management. The board’s standard data transfer rate peaks at 1.3 MB/s using a three-wire handshake, while also supporting the HS-488 high-speed protocol which can increase transfer rates up to 2.3 MB/s, contingent upon the specific system configuration and the capabilities of the connected devices.
Designed to handle up to 14 devices simultaneously, the NB-GPIB-P/TNT’s connectivity can be further extended by employing a GPIB extender or expander/isolator for systems with more devices. It operates on a +5 VDC power supply with a maximum consumption of 350 mA and is FCC Class A certified, ensuring its compliance with strict regulatory standards. The interface board is equipped with a standard 24-pin IEEE 488 I/O connector, facilitating easy and reliable connections to other GPIB instruments.
| Specification | Detail |
|---|---|
| Product Name | National Instruments NB-GPIB-P/TNT IEEE 488 Interface Board |
| Manufacturer | National Instruments |
| Series | NB Series |
| DMA Capability | None (compared to NB-GPIB/TNT) |
| Compatibility | Macintosh NuBus computers (e.g., Centris 610) |
| Driver Software | NI-488.2 for MacOS |
| Chipset | TNT4882C chip |
| Controller Functions | IEEE 488 Controller, Talker, and Listener |
| Standard Data Transfer Rate | 1.3 MB/s with three-wire handshake |
| HS-488 Protocol Support | Up to 2.3 MB/s (dependent on system configuration and device capabilities) |
| Maximum Number of Devices Supported | 14 devices |
| Additional Device Support | Can be used with GPIB extender or expander/isolator |
| Power Requirement | +5 VDC, 350 mA maximum |
| Certifications | FCC Class A |
Q1: What are the capabilities and specifications of the National Instruments NB-GPIB-P/TNT IEEE 488 Interface Board designed for Macintosh NuBus computers?
A1: The National Instruments NB-GPIB-P/TNT IEEE 488 Interface Board differs from the NB-GPIB/TNT in that the NB-GPIB-P/TNT does not support Direct Memory Access (DMA), whereas the NB-GPIB/TNT likely does. The TNT4882C chip on the NB-GPIB-P/TNT board provides it with the essential capabilities of an IEEE 488 controller, enabling it to act as a Controller, Talker, and Listener for GPIB communication
Q2: What are the capabilities and specifications of the National Instruments NB-GPIB-P/TNT IEEE 488 Interface Board when integrated with a Macintosh NuBus computer?
A2: The National Instruments NB-GPIB-P/TNT IEEE 488 Interface Board, when integrated with a Macintosh NuBus computer, serves as an IEEE 488 Controller, Talker, and Listener using a TNT4882C chip, operates with NI-488.2 driver software, and achieves standard data transfer rates of up to 1.3 MB/s, which can be enhanced to 2.3 MB/s with the HS-488 protocol depending on system configuration. It can manage up to
Q3: What are the key features and capabilities of the National Instruments NB-GPIB-P/TNT IEEE 488 Interface Board designed for Macintosh NuBus computers?
A3: The National Instruments NB-GPIB-P/TNT IEEE 488 Interface Board designed for Macintosh NuBus computers is a non-DMA board equipped with a TNT4882C chip, providing it with the functionalities of an IEEE 488 Controller, Talker, and Listener, and it uses NI-488.2 driver software to enable the Mac to act as a GPIB Controller with full communication and bus management capabilities. It offers a standard data transfer rate of up to 1.3 MB/s
Q4: What are the differences in functionality between the National Instruments NB-GPIB-P/TNT IEEE 488 Interface Board and the NB-GPIB/TNT, and how does the TNT4882C chip define its capabilities?
A4: The National Instruments NB-GPIB-P/TNT IEEE 488 Interface Board for Macintosh NuBus computers offers the core functionalities of an IEEE 488 Controller, Talker, and Listener with a standard data transfer rate of 1.3 MB/s using a three-wire handshake and supports the HS-488 high-speed protocol for rates up to 2.3 MB/s, while maintaining compliance with regulatory standards through its FCC Class A certification.
Q5: What capabilities and transfer rates does the National Instruments NB-GPIB-P/TNT IEEE 488 Interface Board offer for Macintosh NuBus computers, and how does it maintain compliance with regulatory standards?
A5: The National Instruments NB-GPIB-P/TNT IEEE 488 Interface Board designed for Macintosh NuBus computers features a TNT4882C chip enabling it to function as an IEEE 488 Controller, Talker, and Listener; it uses NI-488.2 driver software to become a powerful GPIB Controller with a standard transfer rate of 1.3 MB/s and support for HS-488 protocol for speeds up to 2.3 MB/s, can manage up to 14 devices concurrently
