RENT NATIONAL INSTRUMENTS GPIB-120B Bus Expander/Isolator (Call for Availability)
The National Instruments GPIB-120B serves as a versatile GPIB bus isolator and expander, essential for enhancing the capabilities of test and measurement systems. Its primary function is to provide electrical isolation while also increasing the number of devices that can be connected to the GPIB bus.
This advanced isolator offers robust electrical isolation with 2,500 VDC of noncontinuous isolation between GPIB ports and the power supply, ensuring a safe operational environment based on a rigorous 5-second dielectric withstand test. This feature is vital for safeguarding sensitive equipment in high-voltage scenarios.
The GPIB-120B is designed to expand the GPIB system's capacity from the standard IEEE 488.1 limit of 15 devices to accommodate up to 28 devices, enhancing the flexibility of testing configurations. It supports bidirectional expansion, allowing controllers, talkers, and listeners to be configured on either side of the isolator/expander setup.
Another key feature is the capability to operate in two distinct data transfer modes: unbuffered and buffered. The choice of mode influences how data is transmitted across the expansion. In buffered mode, the GPIB-120B enables data transfers of up to 1.2 MB/s, while in unbuffered mode, it supports speeds of up to 450 kB/s, catering to various operational demands.
Specifications for the NATIONAL INSTRUMENTS GPIB-120B Bus Expander/Isolator Include:
- Compatible with IEEE 488.1 and IEEE 488.2 standards
- Continuous electrical isolation rated at 60 VDC
- 2,500 VDC noncontinuous overvoltage isolation between GPIB ports and power supply
- Up to 1.2 MB/s in buffered mode
- Up to 450 kB/s in unbuffered mode
- Expands the GPIB bus capacity to 28 devices
For a comprehensive understanding of its functionalities and capabilities, please refer to the datasheet for further specifications.
