Description
The GPIB Expander/Isolator, model GPIB-120A, is designed to enhance the functionality of GPIB system devices. With part numbers ranging from 776564-01 to 776564-06, this device significantly expands the device limit of a GPIB system from 15 to 28. It achieves this expansion while providing an electrically isolated interface, ensuring secure and efficient data transfer.
Operating under the IEEE 488.1 interface standard, the GPIB-120A is compatible with a wide range of systems and requires no modifications to the user’s application software. This transparency in software compatibility simplifies integration and use. The device features a unique bus configuration with two busses, Bus A and Bus B, which possess identical circuitry and operate in complete isolation from each other. This isolation is critical for systems that require secure and uninterrupted data transfer, with an operating isolation of 60 V and a breakdown isolation of 1600 V.
The GPIB-120A is equipped with Amphenol or Cinch series 57 Microribbon or Amp Champ type connectors, ensuring compatibility with a wide range of GPIB system devices. It also features 7 LEDs, including indicators for Active Controller and System Controller, providing clear and immediate feedback on the device’s status and activity.
With 16 signal lines, including 5 interface management lines, 3 handshake lines, and 8 data lines, the GPIB-120A facilitates robust and versatile data communication. Despite its expansive capabilities, it maintains a modest power requirement of typically 27 VA and ensures minimal data transfer rate degradation, with only 250 ns per byte. This combination of features and specifications makes the GPIB-120A an ideal solution for expanding and isolating GPIB systems, enhancing both their capacity and security.
| Specification | Detail |
|---|---|
| Part Numbers | 776564-01, 776564-02, 776564-03, 776564-04, 776564-05, 776564-06 |
| Model | GPIB-120A |
| Description | GPIB Expander/Isolator |
| Functionality | Expands GPIB system devices limit from 15 to 28, Electrically isolated interface |
| Interface Standard | IEEE 488.1 |
| Software Compatibility | Transparent software, no need to rewrite user’s application software |
| Bus Configuration | Two Busses (Bus A and Bus B), Identical circuitry, Operate in complete isolation |
| Isolation | Operating: 60 V, Breakdown: 1600 V |
| Connectors | Amphenol or Cinch series 57 Microribbon or Amp Champ type |
| LED Indicators | 7 LEDs, including Active Controller and System Controller indicators |
| Signal Lines | 16 signal lines: 5 interface management lines, 3 handshake lines, 8 data lines |
| Power Requirement | Typical 27 VA |
| Data Transfer Rate Degradation | 250 ns per byte
Question 1: What is the device limit expansion of the GPIB-120A? Question 2: What is the operating isolation voltage of the GPIB-120A? Question 3: What type of connectors does the GPIB-120A use? Question 4: How many signal lines does the GPIB-120A have? Question 5: What is the data transfer rate degradation of the GPIB-120A? |




