This section describes the requirements for calibrating the Marvin Test Solutions GX5961, GX5964 and GX5964A digital I/O cards with CalEasy.
Supported Devices: GX5961, GX5964, GX5964A.
Program: GX5960.
Recommended Calibration Interval: 1 Year.
Required Hardware:
1. GX5961, GX5964, or GX5964A.
2. GX95962 – GX5960 Calibration Harness.
3. GX6377 Switch Matrix.
4. GT950xx SCSI cable assembly.
5. GX95963 – GX5960 Power Cable. Required only when calibrating the module using a standalone power supply (GX7400 or other), Do not use if calibrating the module in a GX70x5/GX707 chassis. The cable connects the GX5961/64 to a VCC and VEE power supply source and is wired for direct connection to Marvin Test Solutions’ GX7400 PXI power supply module.
Note: Items 2, 4 and 5 are included in the GX5055-5960-CALKIT which includes the GT95032-12, 12-inch SCSI cable assembly.
If calibrating the GX5964A module, the GX5960A-CALKIT is available which includes the GX96962 calibration harness assembly, the GT95015 differential interface board, the GX95916 IDC adapter module, a GT95032-12, inch SCSI3 cable assembly and a GX95963 external power cable assembly for powering a GX5960 series modules with GX7400 power supply if the board is not installed in a high power GX70x5 / GX7017 chassis. GX95917-8 and GX95917-6, 8-inch and 6-inch calibration flat cables are also supplied with the kit.
1. ATEasy run-time (see the ReadMe.txt for supported versions).
2. GtDio6x v2.0.4 or newer.
3. CalEasy v1.4.6 or newer.
4. Standards driver manufacturer's software as specified below.
1. DMM – 6 ½ digit DMM with
VDC and IDC measurement functions.
Provided instrument drivers: Agilent 3458, Keithley 200x (2001,
2002), Marvin Test Solutions GX2065, Signametrics SMX204x (SM2040, SM2042,
SM2044) or SM206x.
2. MATRIX –
Switch matrix with at least 32x2 rows/columns. Channel I/O must support
the pin-out of the GX95962 Calibration Harness.
Provided instruments drivers: Marvin Test Solutions GX6377.
3. PS –
Power Supply with two independently controlled rails that can supply +17V/-17V
and +19V/-15V. Each rail must be able to supply a maximum of 4A of current.
Provided instruments drivers: Marvin Test Solutions GX70x5 (GX7005,
GX7015), GX7017, Marvin Test Solutions GX7400.
Note: The GX7400 power supply is not required if the GX5960 is installed in a GX70x5/GX7017 chassis.
Note: See Instrument Standards DLL Files section for more information about the Standard Driver software requirements and setup.
In order to calibrate the GX5961/GX5964 the following cables are required:
Part number |
Description |
GX95962 |
Calibration Harness. The harness connects the GX5960 I/O connector (J6) to the switch matrix and the DMM using the 68-Pin SCSI shielded cable that was shipped with the GX5960. The 68-Pin SCSI shielded cable can be any of the following:GT95021 2' shielded cable.GT95022 3' shielded cable.GT95032 6" shielded cable.GT95032-12 shielded cable (supplied with CALKIT). |
GX95963 |
Power Cable. The cable is used if the GX5960 board is not installed in the Marvin Test Solutions’ high-power GX70x5 or GX7017 chassis. |
The following diagram shows the calibration harness connections to calibrate the GX5961/GX5964 board.

Calibration Harness Connections in Order to Calibrate the GX5961/GX5964 Board
1. Connect one side of the 68-Pin SCSI shielded cable to the GX5960 J6 I/0 connector and the other side to the GT95015 (Connector Interface board).
2. Connect GX95962 P6 to the Switch Matrix.
3. Connect GX95962 P1 to the DMM (for voltage measurement).
4. Connect GX95962 P2 to GT95015 J2.
Power supply connections (if not using Marvin Test Solutions’ high-power GX70x5//GX70x7 chassis):
1. Connect GX95963 P7A or P7B to GX5960 J7 connector.
2. Connect GX95963 P5A to Gx7400 Ch1 Out.
3. Connect GX95963 P5B to Gx7400 Ch2 Out.
The following diagram shows the calibration harness connections in order to calibrate the GX5964A board.

Calibration Harness Connections in Order to Calibrate the GX5964A Board
1. Connect GX95916 P2 to the GX5960 P2 I/0 connector using the GX95917-8 cable.
2. Connect GX95916 P3 to the GX5960 P3 I/0 connector using the GX95917-6 cable.
3. Connect GX95916 P1 to the GT95015 (Connector Interface board) J1 using the GT95032-12 cable.
4. Connect GX95962 P2 to the GT95015 J2.
5. Connect GX95962 P6 to the Switch Matrix.
6. Connect GX95962 P1 to the DMM (for voltage measurement).
Power supply connections (if not using Marvin Test Solutions’ high-power GX70x5//GX70x7 chassis):
1. Connect GX95963 P7A or P7B to GX5960 J7 connector.
2. Connect GX95963 P5A to Gx7400 Ch1 Out.
3. Connect GX95963 P5B to Gx7400 Ch2 Out.
1. Start CalEasy.exe executable.
2. Select standards instruments for DMM, Matrix, and Power Supply.
3. Click Start.
4. Select the verification and calibration program mode: Verify, Verify and if Passed, Update Calibration Date, Verify and Calibrate If Required or Calibrate.
5. Run Calibration Program.
6. When prompted, connect Calibration Harness P1 to Current measure on DMM (For current calibration).
Verification – About 12 minutes (GX7400/Keithley 2001), 8 minutes (GX7400/Signametrics 2060).
Calibration – About 35 minutes (GX7400/Keithley 2001), 25 minutes (GX7400/Signametrics 2060).