Description
The National Instruments GPIB-120A is a GPIB Expander/Isolator designed to enhance the functionality and performance of GPIB systems. It comes with a range of part numbers including 776564-01, 776564-02, 776564-03, 776564-04, 776564-05, and 776564-06, ensuring a broad spectrum of options for users. This device falls under the GPIB category and is known by the model name GPIB-120A.
The primary function of the GPIB-120A is to expand the GPIB system device limit from the standard 15 devices to up to 28 devices, significantly enhancing the capacity for larger configurations. In addition to expansion, it electrically isolates GPIB systems, thereby improving the overall safety and reliability of the network. Its compatibility with the IEEE 488.1 interface standard ensures that it can be seamlessly integrated into existing setups without the need for extensive modifications.
One of the key features of the GPIB-120A is its transparent software compatibility, which eliminates the necessity for rewriting the user’s application software. This feature greatly simplifies the integration process and reduces setup time. The device incorporates two buses, Bus A and Bus B, both equipped with identical circuitry and complete isolation from each other to prevent interference and ensure stable operation.
The GPIB-120A boasts impressive operating and breakdown isolations of 60 V and 1600 V respectively, providing a high degree of protection against electrical disturbances. It supports various connector types including Amphenol or Cinch series 57 Microribbon or Amp Champ type, offering flexibility in connection options to suit different system requirements.
For easy monitoring, the device is equipped with seven front panel LEDs that indicate the Active Controller and System Controller states, aiding in quick diagnostics and status checks. It handles a total of 16 signal lines, which include five interface management lines, three handshake lines, and eight data lines, ensuring comprehensive control and data transfer capabilities. The GPIB-120A operates on a typical power requirement
| Specification | Details |
|---|---|
| Part Numbers | 776564-01, 776564-02, 776564-03, 776564-04, 776564-05, 776564-06 |
| Category | GPIB |
| Model | GPIB-120A |
| Description | National Instruments GPIB-120A GPIB Expander/Isolator |
| Function | Expands GPIB system device limit from 15 to 28 devices, electrically isolates GPIB systems |
| Interface Standard | IEEE 488.1 |
| Software Compatibility | Transparent software, no need for rewriting user’s application software |
| Busses | Bus A and Bus B with identical circuitry and complete isolation |
| Operating and Breakdown Isolations | 60 V and 1600 V respectively |
| Connector Type | Amphenol or Cinch series 57 Microribbon or Amp Champ type |
| Front Panel LEDs | Seven LEDs indicating Active Controller and System Controller states |
| Signal Lines | 16 (Five interface management lines, Three handshake lines, Eight data lines) |
| Power Requirement | Typical 27 VA |
