Technical Reference Guide
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7-5
Power and Signal Distribution
Figure 7-5 shows the power supply cabling for CMT systems.
NOTES:
Connectors not shown to scale.
All + and - values are VDC.
RTN = Return (signal ground)
GND = Power ground
RS = Remote sense
POK = Power ok (power good)
FC = Fan Command
[1] This row represents pins 13–24 of connector P1.
Figure 7-5. CMT Power Cable Diagram
7.2.4 Energy Star Compliancy
The standard power supply unit for SFF and CMT systems is Energy Star 3.0-compliant. An
Energy Star 4.0 (80 Plus-compliant) power supply unit is used for the SFF and CMT form factors
in select configurations. The standard USDT power supply unit is compliant with the Energy Star
4.0 specification.
Conn
Pin 1
Pin 2
Pin 3
Pin 4
Pin 5
Pin 6
Pin 7
Pin 8
Pin 9
Pin
10
Pin
11
Pin
12
P1
+3.3
+3.3
RTN
+5
RTN
+5
RTN
POK
5 aux
+12
+12
+3.3
P1 [1]
+3.3
-12
RTN
PS On
RTN
RTN
RTN
Open
+5
+5
+5
RTN
P3
RTN
RTN
VccP
VccP
P4, 5, 9,
10, 11
+3.3
RTN
+5.08
RTN
+12
P6
+12
RTN
RTN
+5
P8
+5
RTN
RTN
+12
Power Supply
Unit
P1
P5
P1
13
1
12
P4, P5, P9, P10, P11
24
1 2
3 4
1
2
3
4
5
1
2
3
4
P8
P3
P6
P4
P3
P6
1
3
2
4
P10
P9
P11
P8
Содержание Compaq dc7800 MT
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