Instrument Description The bus type is specified by specifying a type derivied from the "Bus" abstract type. The schema includes derived types for common instrumentation control buses. Keyword-value pair for identifying power-on defaults. Resources are the physical entities in the instrument that provides the source and measure capabilities. Abstract type for identifying the bus used to communicate with the instrument VXI Bus The amount of dynamic current in amps consumed by the device on each of the VXI backplane voltage lines. The amount of peak current in amps consumed by the device on each of the VXI backplane voltage lines. The number of ECL trigger lines concurrently input or sensed. The number of TTL trigger lines concurrently input or sensed. Identifies the keying class (1-6) defined by the VXI specification. Classes 7, 8, and 9 are defined as follows: Class 7 – No local bus Class 8 – Sensor +/-16V Class 9 – Sensor +/-42V Top Key supports C size modules. Bottom Key supports D size modules (Bottom Key on C size modules is always 7). The module cooling as back pressure in mm/H2O Represents Module Cooling as air flow in liters/sec. Identifies the type of VXI address space needed by the instrument or module in addition to A16. The number of interrupt lines utilized by a device. The weight of the module in kilograms per slot occupied. The number of slots consumed. This type is used to store the amount of current in amps consumed by the device for each of the VXI backplane voltages. Used to specify the number of triggers concurrently input or sensed. IEEE-488 bus VME Bus Ethernet RS-232 USB Used to identify the version of USB supported. IEEE--1394 LXI PCI PCI Express PXI The amount of dynamic current in amps consumed by the device on each of the PXI backplane voltage lines. The amount of peak current in amps consumed by the device on each of the PXI backplane voltage lines. This type is used to store the amount of current in amps consumed by the device PXI Express