| 摘要 |
The modular switch instrument card has a single or double slot card frame having a front panel. The card frame has module receiving areas for receiving selected switch modules. Each switch module is configured to provide a particular switching function. One or more switch modules may be positioned into the module receiving areas such that switch connectors on the switch modules extend through the front panel and are available for connection to an automated test system. The switch modules may be fixedly mounted within the card frame or may be removably coupled. Each switch module couples to an interconnect bus backplane enabling all installed switch modulars to communicate to a switch interface. The switch interface provides a communication interface to the VXI backplane, thereby providing a uniform and consistent programming interface independent of which switch modules are presently installed into the module receiving areas.
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