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Notes: CPS/SDS/001 ISSUE 1
Names: »0680A «
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…02…CPS/SDS/001
…02…BHB/810430…02……02…
CAMPS SYSTEM DESIGN SPECIFICATION
…02…ISSUE 1…02…CAMPS
T̲A̲B̲L̲E̲ ̲O̲F̲ ̲C̲O̲N̲T̲E̲N̲T̲S̲
5.5 RACK AND CABLING ...........................
234
5.5.1 Introduction ...........................
234
5.5.2 CR80D, Modules, and Assemblies .........
238
5.5.2.1 CR80D Processor and Channel Unit ...
238
5.5.2.2 CR80D Watchdog Processor Unit ......
245
5.5.2.3 Cooling of CR80D Crates ............
247
5.5.3 CR80S, Modules, and Assemblies .........
250
5.5.3.1 CR80S TDX Crate Assembly ...........
250
5.5.3.2 Cooling of CR80S Crates ............
253
5.5.4 Rack-Mounted Peripherals and Special
Assemblies .............................
255
5.5.4.1 Disk Drives ........................
255
5.5.4.2 Dual Floppy Disk Drive Unit ........
255
5.5.4.3 V24 Monitor Panel ..................
256
5.5.4.4 Main Switch Unit ...................
256
5.5.4.5 V24 Filter Box ....................
257
5.5.4.6 Power Line Filters .................
257
5.5.5 Racks ..................................
259
5.5.5.1 Single Rack Specifications .........
259
5.5.5.2 3-Bay Rack-Assembly ................
263
5.5.5.2.1 TEMPEST Shielding ..............
263
5.5.5.2.2 Power Cabling ..................
263
5.5.5.2.3 Power, Heat, and Weight ........
265
5.5.5.2.4 Grounding ......................
274
5.5 R̲A̲C̲K̲ ̲A̲N̲D̲ ̲C̲A̲B̲L̲I̲N̲G̲
5.5.1 I̲N̲T̲R̲O̲D̲U̲C̲T̲I̲O̲N̲
The major components of a typical CAMPS MAIN SITE installation
are indicated on fig. 5.5.1-1.
This section describes the design of the racks A, B,
C, D, E, and F including:
a) The specifications of the equipment mounted in
the racks affecting rack design, i.e. mechanical
dimensions, cable termination, cooling etc.
b) specifications of each rack and the 2 three-bay
-rack-assemblies.
The figures 5.5.1-2 and -3 identify the main assemblies/units
placed in the racks.
Fig. 5.5.1-1/3
5.5.2 C̲R̲8̲0̲D̲,̲ ̲M̲o̲d̲u̲l̲e̲s̲ ̲a̲n̲d̲ ̲A̲s̲s̲e̲m̲b̲l̲i̲e̲s̲
The CR80D system is a modular Processor system.
Three different units/crate assemblies are used in
the CAMPS MAIN SITE:
a) The Processor Unit (PU)
b) The Channel Unit (CU)
c) The Watchdog Processor (WDPU).
5.5.2.1 C̲R̲8̲0̲D̲ ̲P̲r̲o̲c̲e̲s̲s̲o̲r̲ ̲a̲n̲d̲ ̲C̲h̲a̲n̲n̲e̲l̲ ̲U̲n̲i̲t̲
Fig. 5.5.2-1 shows the assembly layout. The crate
assembly is for 19 inches rack mounting.
Functional modules are inserted in the front magazine
and in the rear magazine. Flatcables interconnect
front-modules with rear-modules.
To be able to access the interconnection cables when
the crate is mounted in racks, the rear crate can be
folded backwards. The depth required for allowing
fold-back is 910 mm.
The main functional modules are placed in the front
magazine.
Each front-module is terminated with 3 PC-Board edge
connectors placed on the rear edge of the module, opposite
the front panel.
Each of the 3 connectors are 86-way connectors.
The 3 connectors connect to 3 levels of motherboards,
placed in the rear end of the front crate, see fig.
5.5.2-2. The two upper motherboards are identical,
and carry the two main buses of the crate. The lower
motherboard provides interconnection between front
modules as applicable, and is used for I/O signals
in modules with external connections.
Connectors for external signal cables are all placed
on the front panel of the rear crate modules. Interconnection
of front-and rear-crate modules is done by flatcable
as shown on fig. 5.5.2-3. The flatcable may be extended
to several Rear-crate-modules, where applicable.
Fig. 5.5.2-3 shows the normal adapter type rear crate
module. To terminate the main buses, main bus terminating
modules are used as indicated on fig. 5.5.2-1. In
the Channel unit the bus terminating module on the
one end is the CIA, see fig. 5.5.2-5.
Connectors for signal cables and external Power cables
(220 alt. 240 V, 50 Hz power source) are indicated
in figs. 5.5.2-4 and -5).
The two power source inputs of the PU connect to the
two power supply modules of the front crate working
in parallel, while the power source inputs A and B
of the CU connect to power supply modules supporting
the two redundant buses A and B.
Figs. 5.5.2-1/5
5.5.2.2 C̲R̲8̲0̲D̲ ̲W̲a̲t̲c̲h̲d̲o̲g̲ ̲P̲r̲o̲c̲e̲s̲s̲o̲r̲ ̲U̲n̲i̲t̲
Fig. 5.5.2-6 shows the assembly layout of the Watchdog
Processor assembly.
The CR80D minicrate used is designed for smaller stand-alone
computer systems.
Functional modules are inserted in the front magazine
and in the rear magazine. Flatcables interconnect
front-modules with rear-modules.
The main functional modules are placed in the front
magazine. Each module is terminated with 3 PC Board
edge connectors placed on the rear edge of the module,
opposite the front panel.
Each of the 3 connectors are 86-way connectors.
The 3 connectors connect to 3 levels of motherboards,
placed vertically in the rear end of the front magazine,
see fig. 5.5.2-6. The right board and the middle board
are identical and carries the two main buses of the
crate.
The left motherboard provides no interconnection between
front modules, but is used for I/O signals in modules
with external connections.
Connectors for external signal cables are all placed
on the front panel of the rear crate modules. Inter-connection
of front- and rear-crate modules is done by flatcable
as shown on fig. 5.5.2-3. The flatcable may be extended
to several Rear-crate-modules, where applicable. The
flatcables are accessed from the upper side of the
crate.
The power module is inserted from the rear and carries
the power source input.
Fans for cooling of front- and rear-modules are built
into the right sidewall of the crate.
Fig. 5.5.2-6
5.5.2.3 C̲o̲o̲l̲i̲n̲g̲ ̲o̲f̲ ̲C̲R̲8̲0̲D̲ ̲C̲r̲a̲t̲e̲s̲
The watchdog crate assembly is cooled by built-in fans
blowing horizontally through the side walls of the
crate. The power supply and the fans have common power
input.
The Processor and Channel Units are cooled by the dualized
CR80D fan assembly shown on fig. 5.5.2-7. The fan
assembly is placed beneath the unit to be cooled, see
fig. 5.5.2-8. The air input is at the front of the
fan assembly and air is blown up through the front
and rear magazines of the CR80D crate. The output
air stream is directed backwards and will leave the
rack through perforations in the top plate cover of
the rack.
The fan assembly contains 2 identical levels of fans
sourced by two separate Power inputs. Status indicators
on the front panel indicate errors of the fans. The
fans are easily inspected from the front.
Figs. 5.5.2-7/8
5.5.3 C̲R̲8̲0̲S̲,̲ ̲M̲o̲d̲u̲l̲e̲s̲,̲ ̲a̲n̲d̲ ̲A̲s̲s̲e̲m̲b̲l̲i̲e̲s̲
The CR80S System is a modular Processor System.
The TDX Crate assemblies use the CR80S concept.
5.5.3.1 C̲R̲8̲0̲S̲ ̲T̲D̲X̲ ̲C̲r̲a̲t̲e̲ ̲A̲s̲s̲e̲m̲b̲l̲y̲
Fig. 5.5.3-1 shows the assembly layout. The crate
assembly is for 19 inches rack mounting.
Functional modules are inserted in the front magazine.
Fig. 5.5.3-2 shows the normal CR80S module.
This module is inserted in the front magazine. One
PCB connector is placed on the rear edge of the modules,
opposite the front panel.
The connector connects to a motherboard placed in the
rear end of the magazine.
The motherboard provides the interconnections between
the modules and carries connectors on the back for
connection of signal and power cables. Back panels
are mounted on the rear surface of the crate carrying
plugs and connectors for external cables. Back-panels
are interconnected with the motherboard by cables,
flatcables or PC Boards.
Some modules of the front magazine carry signal connectors
on the front panel.
Figs. 5.5.3-1/2
5.5.3.2 C̲o̲o̲l̲i̲n̲g̲ ̲o̲f̲ ̲C̲R̲8̲0̲S̲ ̲C̲r̲a̲t̲e̲s̲
The TDX Crate assembly is cooled by the CR80S fan assembly,
see fig. 5.5.3-3.
The fan assembly is used for cooling of two crates
placed one above the other with the fan assembly placed
below as shown on fig. 5.5.3-4.
The air intake is at the front of the fan assembly
and air is blown up through the front magazines of
the CR80S crates.
The output air stream is directed backwards and will
leave the rack through perforations in the top plate
cover of the rack.
Figs. 5.5.5-3/4
5.5.4 R̲a̲c̲k̲-̲M̲o̲u̲n̲t̲e̲d̲ ̲P̲e̲r̲i̲p̲h̲e̲r̲a̲l̲s̲ ̲a̲n̲d̲ ̲S̲p̲e̲c̲i̲a̲l̲ ̲A̲s̲s̲e̲m̲b̲l̲i̲e̲s̲
This section describes the configuration items of the
computer racks (fig. 5.5.1-2) and line termination
racks (fig. 5.5.1-3) which are not included in the
CR80D crates and CR80S crates (see sections 5.5.2 and
5.5.3).
5.5.4.1 D̲i̲s̲k̲ ̲D̲r̲i̲v̲e̲s̲
Disk drives are drawer mounted for front access to
be able to exchange disk packs.
Signal and power cables are connected to the rear end
of the drives.
a) M̲e̲c̲h̲a̲n̲i̲c̲a̲l̲ ̲d̲i̲m̲e̲n̲s̲i̲o̲n̲s̲:
Height: 267 mm (10,5")
Width: 483 mm (19")
Depth: 762 mm (30")
b) C̲o̲o̲l̲i̲n̲g̲
Fans supporting forced cooling of the unit are
built-in. Air-intake is on the front of the unit
or through the bottom plate of the unit. In the
latter case, a gap is established between the unit
and the assembly mounted underneath.
The air outlet directs the air to the rear end
of the rack. The air leaves the rack through a
perforated area in the top cover plate of the rack.
5.5.4.2 D̲u̲a̲l̲ ̲F̲l̲o̲p̲p̲y̲ ̲D̲i̲s̲k̲ ̲D̲r̲i̲v̲e̲ ̲U̲n̲i̲t̲
The dual floppy disk drive has a front control panel
with slots for insertion of the floppy disks.
Power and signal cables are connected to the rear end
of the unit.
a) M̲e̲c̲h̲a̲n̲i̲c̲a̲l̲ ̲d̲i̲m̲e̲n̲s̲i̲o̲n̲s̲:
Height: 133 mm (5,25")
Width: 483 mm (19")
Depth: 502 mm (19,75")
b) C̲o̲o̲l̲i̲n̲g̲.
Fans supporting forced cooling are built-in. Air
intake is on the front of the unit or through the
bottom plate of the unit. In the latter case a
gap is established between the unit and the assembly
mounted below.
The air outlet directs the air to the rear end
of the rack. The air leaves the rack through a
perforated area in the top cover plate of the rack.
5.5.4.3 V̲2̲4̲ ̲M̲o̲n̲i̲t̲o̲r̲ ̲P̲a̲n̲e̲l̲
The V24 monitor panel is placed below the Channel Unit
and provides facilities for monitoring of the V24 interface
signals of the data exchange channels leaving the Channel
Unit rear crate modules.
5.5.4.4 M̲a̲i̲n̲ ̲S̲w̲i̲t̲c̲h̲ ̲U̲n̲i̲t̲
The main switch assemblies are placed in the bottom
position of all racks of the 2 three-bay rack assemblies.
The main switch assemblies of a three-bay rack contain
the following functions:
a) The power lines fed into the racks are branched
into the amount of Power input sources required
by the units and assemblies of the racks.
b) Power switches and elapsed time indicators are
placed on the front panel. Each power input source
is distributed in the rack where the main switch
assembly is positioned and in some cases in the
neighbouring racks as required.
c) The power line filtering required for protection
against noise and spikes entering via the power
lines.
5.5.4.5 V̲2̲4̲ ̲F̲i̲l̲t̲e̲r̲ ̲B̲o̲x̲
All data exchange channels to users and external circuits
are passed through the V24 Filter Box facility of rack
F.
The principles of the V24 Filter Box design are shown
on fig. 5.5.4-1.
The V24 Filter Box forms a cavity in the EMI shielding
surface of the racks.
Electrical cables are conducted from the crate/unit
containing LTUs and adapters to a position at the V24
Filter Box, where a feed through connector passes the
signals through the EMI shield, formed by the rack.
The internal cables are terminated with RF-filters.
Opto cables are passed through waveguides in the V24
Filter Box.
All signal cables are leaving the rack through the
attached cable duct.
A cover has to be removed to get access to the connectors
terminating the external electrical cables.
5.5.4.6 P̲o̲w̲e̲r̲ ̲L̲i̲n̲e̲ ̲F̲i̲l̲t̲e̲r̲s̲
The power supply lines are entering the racks through
power line filters.
A power line filter is designed as a box placed on
the inside surface of the rack wall and forming a cavity
in the EMI surface.
Power line filters are placed in both three-bay rack-assemblies.
Fig. 5.5.4-1
5.5.5 R̲a̲c̲k̲s̲
A CAMPS Main Site Installation includes 6 Racks, named
Rack A, B, C, D, E, and F.
The Racks serve 2 major tasks.
a) They contain a 19 inch Rack-system for mounting
of assemblies, units, and cables.
b) The 2 3-bay rack assemblies provide a TEMPEST shield
reducing electromagnetic radiation from the enclosed
equipment.
5.5.5.1 S̲i̲n̲g̲l̲e̲ ̲R̲a̲c̲k̲ ̲S̲p̲e̲c̲i̲f̲i̲c̲a̲t̲i̲o̲n̲s̲
Fig. 5.5.5-1 shows a single rack. The max. dimensions
shown give the maximum envelope of the rack.
The rack has 2 doors, a front door and a rear door.
The front door allows full access to the mounted equipment.
Front and rear door are of equal size and are hinged
at the same side of the rack.
The doors and the cabinet are made of steel.
Two perforated areas in the front door allow air intake
for cooling of equipment. The air intakes of the assemblies/units
are placed behind the perforated areas in the door
to minimize the pressure drop in each flow of cooling
air.
The top cover plate of the cabinet is perforated to
allow output of cooling airflow.
The gaps between doors and cabinet are blocked by gaskets
of conducting material.
The tightness of these gaskets is important for TEMPEST
performance. The gaskets are wear-out items with a
3 to 5 year service lifetime.
The 19 inch rack mounting panel system included in
the cabinet is mounted on insulation blocks and the
mounted equipment is thus galvanically insulated from
the Tempest Shield.
The "useful depth" of the rack is the distance between
the mounting surfaces of the front and rear mounting
panels. The useful depth is 101 cm.
Figs. 5.5.5-1/2
5.5.5.2 3̲-̲B̲a̲y̲ ̲R̲a̲c̲k̲-̲A̲s̲s̲e̲m̲b̲l̲y̲
5.5.5.2.1 T̲E̲M̲P̲E̲S̲T̲ ̲S̲h̲i̲e̲l̲d̲i̲n̲g̲
The 2 3-bay rack cabinets provide the TEMPEST shielding
of the equipment contained within the assembly, when
doors are closed. The 3 cabinets are bolted together
with conducting gaskets inserted. No side walls are
mounted between neighbouring cabinets.
A logical lay-out of 3-bay rack-assembly is shown on
fig. 5.5.5-2.
5.5.5.2.2 P̲o̲w̲e̲r̲ ̲C̲a̲b̲l̲i̲n̲g̲
The power cabling concept is shown on fig. 5.5.5-3.
Three sets of triple power filters are provided, one
set for the disk drives requiring stabilized power
and one set per suite for the remaining assemblies/units.
The power switches indicated are the switches of the
Main Switch assemblies in the bottom position of each
rack panel.
Fig. 5.5.5-3
5.5.5.2.3 P̲o̲w̲e̲r̲,̲ ̲H̲e̲a̲t̲,̲ ̲a̲n̲d̲ ̲W̲e̲i̲g̲h̲t̲
Power and Weight data of the main site equipment racks
are tabulated in fig. 5.5.5.2-1.
The values shall be considered as typical and are valid
for maximum configuration of the site.
In fig. 5.5.5.2-2 is shown the phases of Start-up.
a) Initial peak period.
In the initial period the current is defined by
initial currents due to saturation in transformers
and load currents for capacitors.
Period length and current waveform are depending
on the characteristics of the power source as well.
Peak current values of 10-50 times the current
value in use and a period length less than 100
ms are expected.
The power line filters inserted on the power lines
entering the CAMPS room will influence the initial
peak period.
b) S̲t̲a̲r̲t̲ ̲P̲e̲r̲i̲o̲d̲
The start period is defined by the start-up of
AC-motors in the racks.
AC motors are used in Disk units and Blower units.
The start period will be in the range 2-20 secs.
c) U̲s̲e̲ ̲P̲e̲r̲i̲o̲d̲
Use period characteristics are the characteristics
of the equipment in normal use after termination
of start-up phenomena.
The power and weight data of the individual racks are
tabulated in fig. 5.5.5.2-3 (6 sheets).
The values shall be considered as typical.
8 Figs.
5.5.5.2.4 G̲r̲o̲u̲n̲d̲i̲n̲g̲
5.5.5.2.4.1 R̲a̲c̲k̲s̲ ̲a̲n̲d̲ ̲E̲q̲u̲i̲p̲m̲e̲n̲t̲ ̲i̲n̲ ̲R̲a̲c̲k̲s̲
The panel mounting channels in the racks are mounted
insulated. Thus, all equipment in one rack is grounded
together, but basically insulated from the exterior
rack.
A ground-wire connects the rack-mounted equipment to
the rack in one point. This point is connected to the
exterior ground wire connection point.
When more racks are joined to form one multi-bay rack
assembly, they are connected continuously around the
joining perimeters to form one continuous connected
cabinet. In the cabinet the rack mounted equipment
is connected to one common point. This point is connected
to the exterior ground wire connection point of the
cabinet.
5.5.5.2.4.1 T̲e̲r̲m̲i̲n̲a̲l̲s̲ ̲a̲n̲d̲ ̲M̲o̲d̲e̲m̲
The following terminal equipment are addressed:
VDU Visual Display Unit
MSP Medium Speed Printer
PTP/PTR Paper Tape Reader/Paper Tape Puncher
LP Line Printer
Modem for NICS TARE connection.
On each of the above mentioned items a ground connection
terminal is provided.
