Frame Manual
400FR Compact High Density Balanced Audio Distribution Frame
Page - 2
Revision
0.2
2. INSTALLATION
2.1. COOLING
The 400FR frame is designed to ensure adequate cooling for up to 120 watts 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 400FR 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.
For proper cooling, the frame must contain either two 400PS power supplies, or
one 400PS power supply and one 400PS-FM power supply blank panel with
cooling fan.
2.1.1. 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, and 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.
2.2. MOUNTING
The 400FR Rack frame requires 3 rack units i.e. 5.25 inches (133 mm) of standard.19 inch (483 mm) wide
rack space. To securely fasten the frame to the equipment rack, make sure that all four mounting screws
are tightened securely.
2.3. POWER
The 400FR frame comes standard with one auto-ranging power supply that automatically senses the input
voltage. An additional power supply (400PS) can be ordered to provide fully redundant powering of the
frame. When only one power supply is fitted, the frame will be fitted with a 400PS-FM fan module to
ensure the thermal integrity of the frame cooling. Power should be applied by connecting a 3-wire
grounding type power supply cord to the power entry module on the rear panel of each power supply.
The power cord should be minimum 18 AWG wire size; type SVT marked VW-1, maximum 2.5 m in
length.
The power entry modules contain a standard IEC power inlet connector, two 5 x 20 mm fuse holders and
an EMI line filter.
