INTEGRITY VOICE ALARM ROUTING MATRIX
Integrity Voice Alarm Routing Matrix Installation & Maintenance Manual • Approved Doc. No. DCS0003214 Rev 0 (8/2/05) • Page 9
Mechanical construction
The Integrity mainframe comprises a 2U (3.5 inch, 88.9mm) high chassis designed to fit a
standard 19 inch rack system. In order to install the necessary input and output cards, it is
necessary to disassemble and then reassemble the case.
Anti-static handling guidelines
Please ensure that the following electro-static handling precautions are taken immediately
prior to handling panels, PCBs or any other static-sensitive components:-
Before handling any static-sensitive items, operators should rid themselves of any personal
electro-static charge by momentarily touching any sound connection to a safety-earth,
e.g. heating radiator.
Always handle PCBs by their sides and avoid touching the legs of any components.
PCBs should be stored in a clean, dry place which is free from vibration, dust and excessive
heat. Retaining PCBs in a suitable cardboard box will also guard them against mechanical
damage.
Opening the case
THE INTEGRITY MAINFRAME
On each side of the case there are four cross-head screws. Using a Pozidriv No 1 screw-
driver, loosen the two front top screws and remove the rear top screws.
Identify the top rear rail and lift it upwards. The steel cover will pull out from the front
rail.
Remove the blanking plates from the rear and plug in the required modules. Replace the
blank plates, making sure that they are seated fully. It may be necessary to ‘jiggle’ the
plates to make them fit.
Replacing the cover
Remove the front top screws and remove the front rail.
Locate the rear rail on top of the back plates and push down to make sure that they are
all seated fully. Replace the top rear screws but do not tighten fully. Push the steel cover
into the slot on the front rail and then locate the cover into the slot in the rear rail. The
front rail will drop into position between the front cheeks. Insert the top front screws
and tighten up, but not fully.
Now tighten all four screws a bit at a time, taking care not to overtighten and strip the
thread in the rails.
Top
rear
screw
Top
rear
rail
Top
front
screw
Top
front
rail
