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2.2 Cooling

All significant heat generating components are mounted on the top side of the board and are thermally connected

to the thermal solution with thermal pads. The JMM-5000 power supply offers two cooling methods:

Heat spreader: A heat spreader on the top side may be used for all cooling as shown at

the right. The heat spreader is the size and shape of the PC/104 board. It contains the

standard mounting hole patterns for #6 and M3 screws. The Diamond Systems' PC/104

heat sink accessory may be installed on top of this heat spreader as an option. When the

heat spreader is installed, the PC/104 and PC/104-Plus connectors have bottom-side pins

only and do not support stacking of modules on the top side of the board. The heat spreader

configuration, when attached to a suitable heat dissipation surface or when the heat sink

accessory is installed, supports the full power output at 85

heat sink accessory ACC-HS104-12.7.

Heat sink: A low profile heat sink may be installed on the board in the area between the

PC/104 and PC/104-Plus connectors as shown at the right. The heat sink should be used

only in applications with power dissipation of 100W or less. The height of the heat sink

conforms to PC/104 height limits of 0.435" / 11mm max height above the PCB top surface.

The heat sink configuration may have a lower total output power capacity at 85

lower maximum operating temperature at full power output.

2.3 LED Indicators

A green LED is provided for each output voltage to indicate proper operation. The LEDs are located along the

lower edge of the PCB below the PC/104 connector. All LEDs are calibrated to have equal brightness at the nominal

output voltage for their designated power supply.

2.1 Available Models

Model

JMM-5312-APDRH

JMM-5312-APDRK

JMM-5312-ADRH

JMM-5312-ADRK

JMM-5012-APDRH

JMM-5012-APDRK

JMM-5012-ADRH

JMM-5012-ADRK

JMM-5012-APH

JMM-5012-APK

JMM-5012-AH

JMM-5012-AK

JMM-5000-APH

JMM-5000-APK

JMM-5000-AH

JMM-5000-AK

JMM-5000 User Manual Rev B.01

12V

3.3V

20A

Standby

Yes

www.diamondsystems.com

C. The heat spreader supports the installation of PC/104

3.3V

ISA

Standby

Bus

Yes

C and/or a

PCI

System

Thermal

Bus

Controller

Yes

Heat spreader

Yes

Heat sink

Yes

Heat spreader

Yes

Heat sink

Yes

Heat spreader

Yes

Heat sink

Yes

Heat spreader

Yes

Heat sink

Yes

Heat spreader

Yes

Heat sink

Heat spreader

Heat sink

Yes

Heat spreader

Yes

Heat sink

Heat spreader

Heat sink

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