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32 Using the Enhanced Monitor
•
Voltage Monitor measures all seven power supply voltages (+5, ±12,
±24, -5.2V, and -2V).
-- Voltages outside of fixed limits (based on VXI specifications)
causes the monitor to generate a warning on the display, set a status
bit, the Power Supply LED flashes, and the beeper sounds (if
enabled).
•
Current Monitor measures the current from all seven power supplies
(+5, ±12, ±24, -5.2V, and -2V).
-- Currents exceeding user-specified limits (defaults to mainframe
specifications +10%) causes the monitor to generate a warning on
the display, set a status bit, the Power Supply LED flashes, and the
beeper sounds (if enabled).
•
Power Monitor calculates the total output power of the power supply
[ (V*I)].
-- Total output power exceeding user-specified limits (defaults to
mainframe power supply maximum) causes the monitor to generate
a warning on the display, set a status bit, the Power Supply LED
flashes, and the beeper sounds (if enabled).
•
Backplane Activity Monitor monitors activity on the VXI backplane.
-- The DS0 and DS1 backplane lines are monitored. Activity is
displayed through the front panel Activity LED. No warning is
associated with this activity.
-- SYSFAIL is also monitored. Assertion of SYSFAIL (by any VXI
module) is shown by the amber SYSFAIL LED on. It will not sound
the beeper or generate a warning on the display.
•
Fan Monitor monitors the operation of the fans.
-- Fan speeds outside a fixed range generate a warning on the display,
sets a status bit, the FAN LED flashes, and the beeper sounds (if
enabled).
-- Fan level is returned as a percentage (%) of maximum speed.
•
Fan Controller adjusts mainframe fan speed based on the power
supply, ambient, and individual slot temperatures. The fan can be set
to maximum or FULL speed by a front panel switch.
-- In the Variable mode, if the power supply temperature exceeds
an expected level, the fan speed increases to maximum.
-- In the Variable mode, if the ambient temperature exceeds +50
the fan speed increases to maximum.
-- In the Variable mode, if any VXI module exhaust temperature
approaches a user-defined limit, fan speed increases.
-- Otherwise, fan speeds operate at the lowest possible speed to
maintain user-specified cooling level.
•
Time Monitor records:
-- Total hours of operation
-- Time-on since power on, last test, last calibration, last history reset.
-- Time remaining until the next maintenance. This time can be set and
queried by the user. A warning is generated when the timer reaches
0. Note: this is disabled as shipped from HP.
°
C,
Chapter 2
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