NI GPIB-140A

Description

Product Description

Product Parameters

1. Module Type: High-performance fiber optic GPIB bus extender, belonging to NI GPIB controller series
2. Compliance Standard: IEEE 488.1, HS488, IEEE 488.2
3. Data Transmission Rate: IEEE 488.1 (1.1 Mbps), HS488 (2.8 Mbps)
4. Maximum Transmission Distance: 1km single-section fiber optic transmission, support multi-section cascade
5. Connectable Device Quantity: Support up to 26 GPIB compatible devices, single-section extend 13 devices
6. Power Supply: +5VDC/24V DC optional, multi-region power supply specifications available
7. Power Consumption: ≤25W, low power industrial design
8. Working Temperature: 0°C ~ +55°C, industrial grade temperature adaptation
9. Storage Temperature: -20°C ~ +70°C
10. Protection Grade: NEMA/IEC IP30 (dustproof, anti-electromagnetic interference)
11. Physical Dimension: 140mm×80mm×40mm (3.5×5.65×1.62 in), compact structure
12. Product Weight: Approx. 0.5kg (0.55 lb)
13. Bus Interface: 32-bit/33 MHz PCI, compatible with 5V/3.3V slots
14. OS Compatibility: Windows, Linux, macOS
15. Driver Support: NI-488.2, IVI-VISA

Advantages and Features

1. Long-Distance Transmission & Bus Expansion

   NI GPIB-140A breaks the 20m cable limit of traditional GPIB systems through fiber optic transmission, with a single-section transmission distance of up to 1km and support for multi-section cascade. It can expand the number of connected GPIB devices to 26, perfectly solving the problems of short transmission distance and limited device quantity in distributed test systems.
2. High-Speed Transmission & Low Latency

   Equipped with exclusive buffered transfer technique, the module supports 2.8 Mbps high-speed transmission under HS488 mode, and realizes Controller/Talker/Listener multi-role switching. It ensures real-time and low-latency data interaction between test instruments and upper computers, meeting the requirements of high-performance automatic test systems.
3. Software Transparency & Plug-and-Play

   NI GPIB-140A has the characteristic of full software transparency, which can be directly connected to the existing GPIB system without modifying the upper computer program and secondary development. It supports plug-and-play installation, and the PCI bus interface is compatible with most industrial control computers, greatly reducing the system integration cycle.
4. Strong Anti-Interference & Stable Operation

   Adopting fiber optic signal transmission, the module effectively avoids electromagnetic interference in industrial environments, and is matched with IP30 protection grade and industrial-grade circuit design. It can stably operate in complex test sites such as semiconductor manufacturing and electronic R&D, with high data transmission accuracy and reliability.
5. Multi-Platform Compatibility & Development Support

   Fully compatible with Windows/Linux/macOS operating systems, and supports NI-488.2 and IVI-VISA drivers. It can be seamlessly integrated with LabVIEW, LabWindows/CVI, MATLAB, Python (PyVISA) and other mainstream development environments, providing flexible secondary development capabilities for test system customization.
6. Multi-Specification Adaptation & Easy Maintenance

   The module provides +5VDC/24V DC dual power supply options and multi-region power supply specifications, adapting to different industrial application scenarios. It has a compact structure and light weight, with standardized PCI installation and disassembly, and the whole machine has a 2-3 year original warranty, reducing the later maintenance cost.

Application Fields and Application Cases

Core Application Fields

Typical Application Cases

1. A North American aerospace test institute: The traditional GPIB system has the problem of short transmission distance, which cannot realize the remote control of the aircraft test equipment. After deploying NI GPIB-140A, the test data transmission distance is extended to 800m, and the 2.8 Mbps high-speed transmission meets the real-time data acquisition needs of the test system. The system has been operating stably for more than 1 year with a data transmission accuracy of 99.99%.
2. A European semiconductor manufacturing enterprise: In the wafer test line transformation, NI GPIB-140A is adopted as the GPIB bus extender. Its fiber optic transmission effectively resists the electromagnetic interference in the production workshop, and it is compatible with the original LabVIEW test platform. It realizes the centralized control of 20 test instruments, and the test efficiency of the production line is increased by 30%.
3. An Asian electronic R&D laboratory: The laboratory has a variety of GPIB-compatible test instruments such as oscilloscopes and signal generators, and the equipment is scattered. NI GPIB-140A is selected to build a unified GPIB network, which supports the cascade of multiple extenders and realizes the collaborative work of 18 instruments. The plug-and-play feature shortens the laboratory system construction cycle by 70%.

Comparison with Competing Products

Selection Suggestions and Precautions

Selection Suggestions

1. If you are building or upgrading the NI GPIB test and control system, and need to extend the communication distance or expand the number of connected devices, NI GPIB-140A is the first choice, which ensures the seamless compatibility and stable operation of the whole system.
2. For distributed test scenarios such as aerospace test and industrial production line test, select NI GPIB-140A for its 1km long-distance fiber optic transmission and strong anti-interference ability, which meets the remote data acquisition and control needs.
3. For R&D laboratories and electronic test institutions that use LabVIEW/MATLAB and other development environments, NI GPIB-140A with multi-platform compatibility and professional driver support is the optimal solution, which can reduce the secondary development cost.
4. For test systems that need to connect multiple GPIB-compatible instruments, NI GPIB-140A that supports up to 26 devices is selected to avoid the trouble of multiple extenders matching and improve the integration of the test system.

Precautions

1. Before installation and commissioning, carefully read the original installation manual of NI GPIB-140A, and strictly follow the manual requirements for fiber optic connection and power supply configuration. Cut off the power supply of the host computer and GPIB system before plugging and unplugging the module to avoid device damage caused by live operation.
2. When selecting the power supply, match the corresponding +5VDC/24V DC specification according to the on-site power supply conditions, and do not use non-specified power supply to avoid burning the internal circuit of the module.
3. In daily maintenance, regularly inspect the fiber optic interface of NI GPIB-140A, wipe the dust and dirt on the interface with a special fiber optic cleaning cloth, and avoid bending the fiber optic cable excessively to prevent signal transmission failure.
4. When cascading multiple NI GPIB-140A modules, strictly follow the NI official cascade specification, and the total transmission distance should not exceed the rated limit to ensure the stability of data transmission.
5. When installing the module on the industrial control computer, select a 32-bit/33 MHz PCI slot compatible with 5V/3.3V, and install the official NI-488.2 driver to avoid compatibility problems such as device recognition failure.
6. When storing spare parts, place NI GPIB-140A in a dry, normal temperature and dust-free environment, control the storage temperature at -20°C ~ +70°C and relative humidity at 10% ~ 90% (non-condensing), and avoid placing it in an environment with strong electromagnetic interference.
7. It is strictly forbidden to disassemble the shell and internal components of NI GPIB-140A without authorization, otherwise it will cause permanent damage to the module and invalidate the original 2-3 year warranty service.

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