Emerson MVME2500 manual 2 Power Requirements, Hardware Preparation and Installation

Models: MVME2500

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Hardware Preparation and Installation

Product Damage

High humidity and condensation on the board surface causes short circuits.

Do not operate the board outside the specified environmental limits.

Make sure the board is completely dry and there is no moisture on any surface before applying power.

2.3.2Power Requirements

The board uses +5.0 V from the VMEbus backplane. On board power supply generates the required voltages for the various ICs. The MVME2500 connects the +12 V and -12 V supplies from the backplane to the PMC sites, while the +3.3 V power supplied to the PMC sites comes from the +5.0 V backplane power. A maximum of 10 A of +3.3 V power is available to the PMC sites, however the 90 W +5.0 V limit must be observed as well as any cooling limitations.

The following table provides an estimate of the typical and maximum power required.

Table 2-2 Power Requirements

Board Variant

Maximum (Calculated)

Typical (Measured Operating)

 

 

 

MVME2500-0163

18.5 W

14.8 W

 

 

 

MVME2500-0161

18.5 W

14.8 W

 

 

 

MVME2500-0173

24 W

16.6 W

 

 

 

MVME2500-0171

24 W

16.6 W

 

 

 

MVME2500ET-0173

24 W

16.6 W

 

 

 

MVME2500ET-0171

24 W

16.6 W

 

 

 

The power is measured when the board is in standby (Linux prompt). Power will significantly increase when adding hard drives or a XMC/PMC card.

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MVME2500 Installation and Use (6806800L01H)

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Emerson MVME2500 manual 2 Power Requirements, Hardware Preparation and Installation