48or 64 (model dependent) analog channels which can be connected to any of four internal source rails. Each channel can be measured using an on-board A to D converter at any time.
Three multifunction, 16-bit DC sources, with a -20V to +32V range and maximum current of 500mA.
Rail A provides accesses a precision DC source, external reference, or an on-board amplifier output which has an nominal gain of 6.6.
Rail A supports access to an internal pulse generator (firmware version 0x0000AC00 and above, GX3348A or GX3348A-64 modules). The generator supports two level pulse waveforms or square wave generation.
Rail B accesses a precision DC source or a +5 V power supply.
Rail C accesses a precision DC source or an external reference source.
Rail D is connected to ground (0 V)
(8) programmable, independent digital I/O lines.
Access to all signals is via a 78-pin D-type connector.
A software package GXPDO provides programming and examples for interfacing to common programming languages for the 32/64-bit Windows environment. A front panel application is also provided which displays and controls the instrument’s functions. A separate software package (GtLinux) provides support for Linux.
The calibration data source for each DAC is set by software and is stored in non-volatile memory on the card. Calibration for each DAC can be done using a software API or via CalEasy – Marvin Test Solutions’ Calibration executive (both the API and CalEasy require the purchase of a software license).