User Manual California Instruments
CSW Series 159
8.4 Option –704: MilStd704 Tests
The MIL704 option is made up of both firmware that resides in the power source and the GUI
Windows application program. The firmware covers revision D and E of the Mil-Std704 standard.
The GUI covers the remaining revisions A, B, C and F. This provides coverage of all available
standard revisions.
The user interface for each implementation is different however. The revision D and E tests can
be operated directly from the power source’s front panel or through the supplied GUI program.
The revision A-C, F tests can only be operated through the supplied GUI program. Thus, for rev
A-C and F, a Windows PC and interface is required.
Section 9.8.1 covers operation of the firmware based revision D and E tests.
For information regarding the operation of the MIL-STD-704 revision A, B, C, and F tests with
the GUI, please refer to the Avionics Software Manual (CI part no. 4994-971 included on
CDROM). Note that future updates of the GUI may include overlapping coverage for revisions D
and E in the software as the GUI program is designed to support all revisions. For now,
revisions D and E have no associated data files in the GUI.
8.4.1 Option –704: MIL-STD-704 rev D & E Tests. (Firmware)
8.4.1.1 General
The MIL704 option is capable of performing most sections of MIL-STD-704 rev D and E in either
of the AC or DC mode.
Note: The Distortion Spectrum tests:
Table I and II, Figure 7
Table III, Figure 12
Table IV, Figure 18
are not supported by the –704 option. These tests require the use of additional
external equipment.
8.4.1.2 Initial Setup
Nominal parameters for the AC Power source are as follows:
Output Voltage 115V L-N
Output Frequency 400 Hz
Nominal parameters for the DC Power source are as follows:
Output Voltage 28V or 270V L-N
A setting outside these nominal values will disable the test and will prevent access to its Menu
screens.
8.4.1.3 Revision
The MIL704 option defaults to Revision E. The System is capable of performing
Revision D test by changing the selection to Revision D. All Revision D tests can be performed
except for the 270V DC TRANSIENT and ABNORMAL where Revision E level are used despite
the revision selection.
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