National Instrument GPIB-140A Bus expansion module
Specific Parameters
Brand National Instrument (NI)
Product Series GPIB Bus Expansion Module Series
Product Type GPIB Bus Signal Amplification/Expansion Module
Model GPIB-140A
Compatible Standards IEEE 488.2, IEC 625-1
Bus Speed Up to 1.5MB/s (compliant with IEEE 488.1)
Transmission Distance Maximum bus transmission distance 50m after single module expansion; maximum 200m with multi-module cascading (one module cascaded every 50m)
Port Type 2 GPIB interfaces (Type A connector, compliant with IEEE 488 standard)
Cascading Capability Supports multi-module cascading, maximum cascading quantity 4
Operating Voltage DC 12V – 15V (powered by external power adapter)
Operating Current Typical 300mA (12V input); Maximum 500mA (12V input)
Operating Temperature Range 0℃ – 55℃
Storage Temperature Range -20℃ – 70℃
Relative Humidity 10% – 90% Non-condensing
Dimensions 114mm×146mm×38mm (L×W×H)
Weight Approximately 400g
Certification CE, UL, CSA, FCC Part 15 Class A
Indicators Power indicator (POWER), GPIB bus activity indicator (ACTIVE), bus error indicator (ERROR)
Compatible Systems Compatible with NI-488.2 driver software, supports Windows, Linux, macOS systems
Product Performance
Fully compatible with IEEE 488.2 GPIB standard, can be seamlessly integrated into various GPIB instrument systems without additional protocol parameter configuration, with extremely strong compatibility
Equipped with GPIB bus signal amplification and shaping functions, can extend the standard GPIB bus transmission distance from 20m to 50m/single module, and maximum 200m with multi-module cascading, meeting the long-distance instrument interconnection needs of large-scale test systems
Supports maximum 1.5MB/s GPIB bus transmission speed, can ensure high-speed transmission of test data without affecting the overall test efficiency of the system
Built-in bus signal anti-interference circuit, can effectively resist electromagnetic interference in industrial sites and laboratory environments, ensuring the stability and integrity of GPIB bus data transmission
Equipped with clear status indicators, which can real-time display power status, bus activity status and error information, facilitating operation and maintenance personnel to quickly troubleshoot system faults
Supports multi-module cascading expansion, maximum 4 modules cascaded, can be flexibly configured according to actual transmission distance requirements, with strong expandability
Compatible with NI-488.2 full-series driver software, supports mainstream operating systems, and can be seamlessly integrated with NI LabVIEW, LabWindows/CVI and other development environments, simplifying system development and debugging processes
Industrial-grade stable design, can operate stably for a long time in the operating temperature range of 0℃ – 55℃, meeting the environmental needs of laboratories and industrial test sites
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