Appendix D: Performance Verification
73A-270 Arbitrary Pulse/Pattern Generator Module 61
Self Test
Following the VXIbus system startup sequence, the green PWR light on the
73A-270 front panel indicates that all power supplies are operational. If the +5 V,
–5.2 V, –2 V, ±24 V or the internally regulated ±20.9 V buses fail, or if the
–2 V, +5 V, –5.2 V, or ±24 V fuses open, the PWR light will be off. Additional-
ly, the FAILED light will be on and SYSFAIL* will be asserted indicating a
module failure.
If any of the Mode or Resolution lights are on, it usually is an indication that the
73A-270 has not completed its initialization correctly. One typical reason for this
condition is the FAST EXTERNAL CLOCK switch being in the external (C2)
position.
NOTE. If you experience any error indication from the Slot 0 Resource Manager,
the 73A-270, or other VXIbus module, investigate and correct the problem before
proceeding. Common items to check are logical address conflicts (primary and
secondary; see Table A–3), breaks in the VXIbus daisy chain signals, improper
seating of a module, loose GPIB cable.
Performance Verification Tests
This procedure verifies the performance of the 73A-270. The test sequences
contain setup instructions for the example equipment listed in Table A–1. You
may use equipment other than the recommended examples if it meets the
requirements listed. The order of the test sequences has been chosen to minimize
system setup. Although not essential, it is recommended that you follow the
order presented, as some tests rely on previously verified parameters. Before
starting the the test sequence verify that the SLOW EXTERNAL CLOCK is in
the OFF position and that the FAST EXTERNAL CLOCK is in the C1 position.
Also, ensure that the INT LEVEL is set to the same level as the Slot 0 Com-
mander module.
NOTE. All ASCII character string commands enclosed in quotes which are sent
to the 73A-270 must be in UPPER CASE. You may wish to leave your keyboard
in the CAP LOCK mode.