C.1.15 Control Signals - Sun Microsystems Enterprise 220R Service Manual

Output
1
2
3
4
5
Note -
C.1.15 Control Signals
With the exception of the PowerOn signal, all power supply control signals are at
TTL signal levels.
Parameter
VOH (high-level output voltage)
VOL (low-level output voltage)
VIH (high-level input voltage)
VIL (low-level input voltage)
C.1.15.1 Remote Enable PowerOn
A remote interface can enable the DC outputs with a low signal to the PowerOn input
and the DC outputs with a high signal to the PowerOn input. The signal is interfaced
to the power supply through the main logic board and the power distribution board.
C.1.15.2 System Unit Power Budget
The following subsections present the system unit power budgets.
Voltage (VDC)
3.3
5.0
12.0
-12.0
5.1
The combined power of output 1 and output 3 must be less than 320 watts.
Maximum Current Regulation Band
(A)
50.0 3.23 to 3.43
40.0 4.95 to 5.15
5.0 11.40 to 12.60
0.5 -12.60 to -11.40
1.0 4.95-5.25
Minimum
2.4 VDC
2.0 VDC
Functional Description
Maximum
0.4 VDC
0.8 VDC
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