Technical data

3
3-1
3Extended XR Chassis
Chassis Overview
The Extended Chassis is based on the Original Chassis design. It
uses the same backplane, power supplies, and fan trays. The main
differences are the dimensions and the bezels.
The front VME card cage has been extended outwards
approximately 2 inches (approx. 5 cm) to accomodate the Extended
Injector/Ejector (VME64) handles on the VMEmodules.
The front bezel design was changed from a rounded, plastic bezel
to a flat, metal bezel to accomodate embedding these systems in
cabinets and to facilitate customization efforts (such as custom
colors, logos, etc.).
The Extended Chassis also contains the following features:
❏ Stiffened backplane support for multi-slot VME single board
computers (such as 2-slot CPUs plus 2-slot PMCspan).
❏ Rails for the large VME64 handles to facilitate insertion and
extraction of multi-slot VME single board computer "bricks".
❏ New card cage with new guides for the new handle
keying/locking mechanism.
❏ The front panels contain louvers for airflow, and accomodate
replaceable air filters, locking mechanisms, handles to
facilitate removal and attachment, and holes for the key
switch(es) and LED indicators.
The Extended Chassis is available in either a dual 9-slot or a 20-slot
configuration.