Hardware Preparation and Installation

Power Requirements

 

 

2.3.2Power Requirements

The board's power requirements depend on the installed hardware accessories. The following table gives examples of typical power requirements for +5 V and +3.3 V for a processor running at 600 MHz without any accessories. If you want to install any accessories, the load of the respective accessory has to be added to the load of the used board variant. For information on the accessories' power requirements, refer to the documentation delivered with the respective accessory or ask your local representative.

Table 2-2 Power Requirements

Characteristic

Value

 

 

Power Requirements

CPCI-6115-260

(not transition module or PMC)

+5 V@4.5 A, typical

 

 

+3.3 V@2.4 A, typical

 

+12 V@1 mA, typical

 

–12 V@2 mA, typical

 

CPCI-6115-220

 

+5 V@4.1 A, typical

 

+3.3 V@2.4 A, typical

 

+12 V@1 mA, typical

 

–12 V@2 mA, typical

 

 

Power available for PMCs/ transition

+5 V@5.5 A, typical

modules (see note after table)

+3.3 V@7.5 A, typical

 

+12 V@1.0 A, typical

 

–12 V@1.0 A, typical

 

 

The power available for PMCs/transition module values represent the available current on each power rail and do not guarantee that thermal or cooling needs are met. You must evaluate to ensure adequate cooling.

2.3.3Thermal Requirements

Board component temperatures are affected by ambient temperature, air flow, board electrical operation and software operation. In order to evaluate the thermal performance of a circuit board assembly, it is necessary to test the board under actual operating conditions. These operating conditions vary depending on system design.

While Motorola performs thermal analysis in a representative system to verify operation within specified ranges (see Table 2-3 on page 33), you should evaluate the thermal performance of the board in your application.

32

CPCI-6115 CompactPCI Single Board Computer Installation and Use (6806800A68D)

Page 34
Image 34
Motorola CPCI-6115 manual Power Requirements, Thermal Requirements, Characteristic Value