Control Signals; Remote Enable Poweron; Table C-14 Power Supply Output Values; Table C-15 Power Supply Control Signal - Sun Microsystems Ultra 80 Service Manual

The power supply output voltages are listed in the following table. The power
supply continues to regulate all outputs for 20 milliseconds after AC power is
removed.
TABLE C-14
Output
1
2
3
4
5
Note – The combined power of output 1 and output 3 must be less than 600 watts.
C.2.1

Control Signals

With the exception of the PowerOn signal, all power supply control signals are at
TTL signal levels.
TABLE C-15
Parameter
V (high-level output voltage)
OH
V (low-level output voltage)
OL
V (high-level input voltage)
IH
V (low-level input voltage)
IL
C.2.1.1

Remote Enable PowerOn

A remote interface can enable the DC outputs with a low signal to the PowerOn
input. Both signals are interfaced to the power supply through the motherboard.
-36 Sun Ultra 80 Service Manual • March 2000
Power Supply Output Values
Voltage (VDC)
3.3
5.0
12.0
-12.0
5.0
Power Supply Control Signal
Max Current (A)
90.0
70.0
8.0
0.4
1.5
Min
2.4 VDC
2.0 VDC
Regulation Band
3.23 to 3.43
4.85 to 5.25
11.65 to 12.60
-12.60 to -11.40
4.75 to 5.25
Max
0.4 VDC
0.8 VDC