... 19" EMC subrack
Versirak has been designed to accept plug-in modules
and printed circuit boards . Compatible with 19 inch
practice, externally conforming to DIN 41494 parts 1
and 5, internally conforming to DIN 41494 part 2 . The
system has been designed to provide a level of EMC which
can be achieved on an upgrade basis without the need
to dismantle any of the original structure.
Sideplates made from 2,5mm aluminium alloy, Horizontal
rails and Mounting angles made from extruded aluminium
alloy. Sideplates and Horizontal rail are protected
using a conductive surface finish, Alocrom 1000, the
Mounting angles are satin anodised to BS1615-AA10 .
Flush mounting bushes enable the Mounting angle to be
fitted front or rear independently of the rails and
provides earth continuity . The Sideplates are punched
on a 30mm pitch along the depth for variable rail fixing
positions with semi-shear indents to prevent rail rotation
with M5 single screw fixing each end . Horizontal rails
which accept guide rails are pierced on a 5,08mm pitch
for location and are printed along the inner face 1-84
and 84-1 to ease guide rail alignment
Supplied in kit form . Assembly and earth continuity
testing can be carried out on request .
Available as a 3U subrack,
6U subrack and 9U
subrack - see below for all accessories.
Versirak has been tested at an independent NAMAS test
house with results obtained for a number of configurations,
these include the subrack being fitted with: vented
and plain covers, PCB front panels, hinged front panels,
blanking panels and internally subdivided with the
divider screen plate. Measurements were taken for
differing combinations of components and varying gasket
positioning. Full test results are available on request.
Because Versirak has been designed with EMC upgradability,
the tests demonstrate the improvements made through
the addition of the various accessories from the Versirak
Tested by an Independent
Accredited Test House. (NAMAS No. 1107). Project P358.
Tests dated February 1992. Test Plan Build 1 1 6U
x 340 subrack fitted with full width front and rear
panel. (Worse Case Results) Modified MIL-STD 285 Test
Method. Full Test results available no request