HP E8402A, User And Service Manual, Page: 221 / 249

HP E8402, E8404A Product Specifications 223 Appendix A
Diagnostic Connector
•
Output all 7 backplane voltages for monitoring
•
5V and +12V for remote applications. 1A max each.
•
Input +5VSTDBY to backplane. 1A max total for pins 5 and 18.
•
Remotely operate On/Standby
•
Power supply temperature output. 0mV = 0
°
C, 10mV per
°
C.
•
Reference temperature output. 0mV = 0
°
C, 10mV per
°
C.
•
Fans OK output, same as Fans indicator. TTL low true logic levels.
•
Backplane voltages OK output. TTL low true logic levels.
•
SYSRESET*, input or output. TTL low true logic levels.
•
ACFAIL*, output. TTL low true logic levels.
•
Ground
Enhanced Monitor Specifications
Temperature Monitor
Module exhaust
temperatures:
13 slots, front, middle and rear. Ambient temperature.
Power Supply temperature.
Accuracy:
±
2
°
C
Default slot exhaust
alarm limits:
65
°
C absolute, user-settable via SCPI command
15
°
C delta, user-settable via SCPI command
Voltage Monitor
Seven VXI power supply outputs and +5VSTDBY. In Volts.
Default alarm limits: Per VXI regulation spec for each voltage, fixed.
Current Monitor
Seven VXI power supply outputs. In Amps.
Default alarm limits: Specified peak current for each output voltage,
user-settable via SCPI command.
Note that measurement accuracy may cause an alarm even if peak current
has not exceeded specified maximum. Limit may need to be adjusted higher.
Power Monitor
Seven VXI power supply outputs. In Watts.
Accuracy: Value calculated from voltage and current measurements.
Default alarm limits:Specified peak power level for total power,
user-settable via SCPI command. Note that measurement accuracy may
cause an alarm even if power has not exceeded specified maximum. Limit
may need to be adjusted higher.
Fan Speed Monitor
Module cooling fan (impeller). Power supply cooling fan(s). In % of speed
and rpm.
Timer
Accuracy,
∆
s/s:
±
120 ppm
Aging,
∆
s/s:
±
5 ppm / yr