3025EMC Master Control Switching & Channel Branding
Revision 3.0.3 Page 7
After the unit has been installed in a rack, all cards in the frame should be checked to ensure they are
fully seated within the frame. This is best accomplished by simply pushing (simultaneously, with
moderate force) on each card’s top and bottom insertion/extraction levers. See section 2.2.3 for further
information. This step should be repeated any time the frame is shipped, or relocated within a facility.
2.4. COOLING
The EMC frame is designed to ensure adequate cooling for up to 600 watts (3000FR and EMX6-FR) or
360 watts (EMX3-FR) of processing power per frame. Fans at the front and rear of each power supply
module accomplish forced air-cooling. Adjacent equipment may be mounted immediately to the top
and bottom of the frame. Additional module cooling is provided by interior cooling channels to ensure
that even fully loaded frames mounted adjacent to each other will operate within the normal
temperature range.
The EMX6-FR and EMX3-FR frames have additional fans mounted to the front door of the frame to
provide additional cooling.
C
AUTION: For proper cooling, the frame must contain either two
3000PS/3000PS-QT/7800PS-QT power supplies, or one 3000PS/3000PS-
QT/7800PS-QT power supply and one 3000PS-FM power supply blank panel with
cooling fan.
2.4.1. Fan Exhaust
The cooling fans for the power supplies, located at the front of the frame, draw air in the front and
exhaust out the sides of the frame. The cooling fans for the modules, located at the rear of the frame,
draw air in the front and the exhaust out the rear of the frame.
CAUTION:
To ensure adequate cooling, care should be taken to ensure that the
fan inlets and exhaust openings are free of obstructions.
2.5. SERVICING INSTRUCTIONS
CAUTION: These servicing instructions are for use by qualified service
personnel only. To reduce t
he risk of electric shock, do not perform any
servicing instructions in this section of the manual unless you are qualified to do
so.
2.5.1. Changing the Fuses
CAUTION: For continued protection against the risk of fire, replace only with the
same type and rating of fuse.
ATTENTION: Pour éviter les risques d’incendie, remplacer le fusible avec un
fusible de même calibre.
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