Power and Signal Distribution

Figure 7-5 shows the power supply cabling for CMT systems.

P9 P10 P11

P4, P5, P9, P10, P11

Power Supply

Unit

P6 P8

P4 P5

P3

P1

13

1

5 4 3 2 1

 

 

 

 

P8

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

P3

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

4

3

2

1

 

 

 

 

 

2

 

4

 

 

 

 

 

P6

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

1

 

 

3

 

 

 

 

 

 

 

 

 

 

 

 

1

 

2

3

4

P1

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

24

12

 

 

 

 

 

 

 

 

 

 

Pin

Pin

Pin

Conn

Pin 1

Pin 2

Pin 3

Pin 4

Pin 5

Pin 6

Pin 7

Pin 8

Pin 9

10

11

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,

+3.3

RTN

+5.08

RTN

+12

 

 

 

 

 

 

 

10, 11

 

 

 

 

 

 

 

 

 

 

 

 

P6

+12

RTN

RTN

+5

 

 

 

 

 

 

 

 

P8

+5

RTN

RTN

+12

 

 

 

 

 

 

 

 

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.

 

Technical Reference Guide

www.hp.com

7-5

Page 85
Image 85
HP dc7800 manual Energy Star Compliancy, Shows the power supply cabling for CMT systems