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Component Overview
Chassis
The Acme Packet 3900 is contained in a 1U rack-mounted chassis. It can be front- or
center mounted in standard 19” wide racks (up to 28” deep), with options for 23” wide
racks.
Mounting Hardware
The Acme Packet 3900 is supported by a pair of cabinet slides that are affixed to an
equipment rack by front and rear mounting flanges. The cabinet slides are adjustable
for equipment racks of various depths.
Equipment Rack Installation Hardware
For equipment rack installations, the system chassis is outfitted with left and right
chassis-mounted slide rails. One rail is secured to each side of the chassis, that slides
into another rail that is attached to the inner posts on both sides of the equipment rack.
This two-piece mounting system simplifies chassis installation and removal.
When installing the chassis, the user can easily slide the chassis along the slide rails
until a locking clip on each chassis-mounted rail locks the chassis into the slide rails.
Pressing this clip will then allow the chassis to be fully installed into the equipment
rack. Once inserted into the equipment rack, the Acme Packet 3900 is secured in
place with two captive thumbscrews.
The locking clip is also a safety mechanism for removing the chassis from the
equipment rack. When removing the chassis, the locking clip engages to prevent
the chassis from being overextended and requiring the user to unlock the clip to
intentionally remove the chassis.
The slide rails that are bolted to either side of the chassis or equipment rack are
reversible and can be used on either side of the Acme Packet 3900.
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