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CHAPTER 3: Installation
After removing the screws, place one of the rackmount brackets against the
side of the multiplexor, lining up the four round holes in the long side of the
bracket with the holes from which the screws were just removed. Then use the
same screws that were previously removed to attach the rackmount bracket.
The holes in the brackets are spaced 1.75 inches (4.45 cm) apart, located
at equal distances from the top and bottom of the multiplexor.
The multiplexor is 3.4 inches (8.7 cm) high and requires 3.5 inches
(8.9 cm) of vertical rack space. Additional vertical space above and below the
multiplexor may be required to provide clearance for cooling air flow in and
out of the chassis.
For air cooling, the multiplexor must be mounted to allow unobstructed air
flow into and out of the perforations in the sides and top of the mux chassis.
If the mux is mounted in a rack cabinet, minimum air flow of 120 cubic feet
(3.4 cubic meters) per minute through the cabinet must be provided. If other
equipment is mounted above the mux in the same rack, it must not block air
flow through the perforations in the top of the mux chassis. Also, the sides of
the rack cabinet must be far enough from the sides of the mux chassis to
allow air flow into the perforations on the sides of the mux chassis. (Virtually
all rackmount cabinets have adequate clearance in this area, but this should
be checked.) If mounting another piece of equipment directly above the mux
blocks air flow out of the perforations on the top of the mux, a spacer panel
should be placed between the two units to provide clearance.
Figure 3-1. Attaching a rackmount bracket.
MUL
TIPLEXOR FRONT P
ANEL
