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WangText
$ $…05…$…06…$…86…1
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PC/AUX/005
BHB/830613
#
PROTOCOL
CONVERTER
EMC
-
DESIGN
REPORT…02…
PC…0e…
T̲A̲B̲L̲E̲ ̲O̲F̲ ̲C̲O̲N̲T̲E̲N̲T̲S̲
1. SCOPE ........................................
1
2. INTRODUCTION .................................
2
3. APPLICABLE DOCUMENTS .........................
3
4. REFERENCED DOCUMENTS .........................
4
5. PROTOCOL CONVERTER DESIGN ....................
5
5.1 Introduction ...............................
5
5.2 PC Equipment ...............................
5
5.2.1 PC Rack ................................
5
5.3 EMI Shielded Rack ..........................
10
5.4 Power Input, Grounding .....................
10
5.5 Signal Cabling .............................
13
5.6 Subassemblies, Crates and included Modules..
15
5.6.1 Processor Unit (PU) ....................
15
5.6.2 Adapter Crate ..........................
17
5.6.3 Filter Box .............................
19
5.6.4 Patch Panel ............................
23
5.6.5 Power Line Filter ......................
26
5.6.6 VDU ....................................
29
6. TEMPEST DESIGN ANALYSIS OF PROTOCOL CONVERTER.
31
6.1 Introduction ...............................
31
6.2 PC Equipment ...............................
31
6.3 EMI Shielded Rack ..........................
32
6.4 Power Input, Grounding .....................
32
6.5 Signal Cabeling ............................
32
6.6 Subassemblies, Crates and included Modules..
33
6.6.1 Processor Unit (PU) ....................
33
6.6.1.1 PU-Crate ...........................
34
6.6.1.2 PU-Modules .........................
34
6.6.2 Adapter Crate ..........................
35
6.6.3 Filter Box .............................
35
6.6.4 Patch Panel ............................
35
6.6.5 Power Line Filter (PLF) ................
35
6.6.6 VDU ....................................
35
1. S̲C̲O̲P̲E̲
The scope of this Design Evaluation Report is to provide
adequate information on the equipment design of Protocol
Converter (PC), to enable ACE COMSEC to decide the
In-Plant tests required for the PC-equipment, as defined
in the PC contractual baseline documents (ref 3a and
3b).
2. I̲N̲T̲R̲O̲D̲U̲C̲T̲I̲O̲N̲
Section 5 of this document describes the elements of
the PC-design, which are critical for the TEMPEST performance
of the PC equipment.
Section 6 provides an analysis of these elements demonstrating
that the design baseline defined for CAMPS, which has
already passed an In-Plant test at CR successfully,
has been maintained.
CR's conclusion is therefore that no further In-Plant
testing is required to ensure that the PC equipment
will meet the security requirements after installation.
3. A̲P̲P̲L̲I̲C̲A̲B̲L̲E̲ ̲D̲O̲C̲U̲M̲E̲N̲T̲S̲
a) Procotol Converter Contract
SHNMO-82-9205-INF
- Special Clause 14.3.1
- Appendix G (SRS) section 7.1
b) Protocol Converter Test Plan
PC/TPL/001, issue 3, 830211
- Section 3.3.1
c) Protocol Converter
Hardware Assembly Breakdown
PC/SDS/002, issue 1 (830325)
d) Protocol Converter Equipment Handbook
PC/HBK/001, Preliminary issue (830301)
4. R̲E̲F̲E̲R̲E̲N̲C̲E̲D̲ ̲D̲O̲C̲U̲M̲E̲N̲T̲S̲
All CPS-documents listed below are approved baseline
documents. Copies of the documents are available at
SHAPE/SHNMO.
a) (CAMPS) In-Plant COMSEC test Verification
CPS/TSS/002 (1) 820301
b) EMI Feature QA Plan
CPS/QAP/002
c) EMC Report
CPS/REF/003
d) CAMPS LOG 773
e) (COMSEC Test report on In-Plant test at CR)
f) CAMPS H/W Assy Breakdown/Hardware Tree
CPS/SDS/017 (3.1) 830406
g) CAMPS System Design Specification
CPS/SDS/001 (1.3) 820402
Section 4.1.1 (vol.1)
Section 5 (vol.3)
h) Product Specification for CR80D Mainbus
CSD/005/PSP/0033 (2) 801117.
5. P̲R̲O̲T̲O̲C̲O̲L̲ ̲C̲O̲N̲V̲E̲R̲T̲E̲R̲ ̲D̲E̲S̲I̲G̲N̲
5.1 I̲n̲t̲r̲o̲d̲u̲c̲t̲i̲o̲n̲
In this section is provided a design overview for presentation
of the PC equipment design. TEMPEST performance aspects
are highlighted.
The presentation is mainly extracted from the two following
documents.
- Protocol Converter Equipment Handbook (ref 3d)
- Protocol Converter Hardware Assembly Break-down
(ref 3c)
5.2 P̲C̲ ̲E̲q̲u̲i̲p̲m̲e̲n̲t̲
The Protocol Converter is a front-end system for a
CCIS system.
The PC will perform protocol conversion on the communication
lines to CAMPS and SCARS equipment (see Figure 5.2-1)
The current contract (ref 3a) includes 3 PC-Systems
for 3 sites.
The equipment for one site is housed in one EMI Shielded
Rack. On the site block diagram, Figure 5.2-2 are the
main elements identified.
The communication lines to CCIS/SCARS/CAMPS will be
operated at max. 9.6 kbps on metallic cables.
The Maintenance-VDU is connected by opto-cable.
5.2.1 P̲C̲ ̲R̲a̲c̲k̲
The PC Rack lay-out is presented on Figures 5.2-3 and
5.2-4.
Figure 5.2-1
PC NETWORK
Figure 5.2-2
PC SITE BLOCK DIAGRAM
Figure 5.2-3
PC RACK CONFIGURATION
Figure 5.2-4
PC CABINET ASSEMBLY
5.3 E̲M̲I̲ ̲S̲h̲i̲e̲l̲d̲e̲d̲ ̲R̲a̲c̲k̲
The EMI Shielded Rack (cabinet) is specially designed
for housing the CR-processors in environment, where
AMSG 720A is applicable.
The rack's are manufactured by Electronic Enclosures,
(N.J.,USA) to Christian Rovsing A/S's quality specifications
(ref 4b).
5.4 P̲o̲w̲e̲r̲ ̲I̲n̲p̲u̲t̲,̲ ̲G̲r̲o̲u̲n̲d̲i̲n̲g̲
The power cabeling is presented on Figure 5.4-1.
Power input is AC, 220 Volts, single- or three-phase.
Three Ground Systems are provided, each galvanic isolated
from the others:
1. AC power neutral
2. Equipment frame ground
3. Signalling and control ground
The panel mounting rails in the racks are mounted insulated
(Figure 5.4-2). Thus, all equipment in a rack is grounded
together, but basically insulated from the exterior
rack (cabinet).
A ground-wire connects the rack-mounted equipment to
the rack cabinet in one point, namely the joining point
of the power line filter and the cabinet.
The internal power cables includes a ground conductor
connecting ground to crates and fans.
The Mini-Crates and the Adapter Crate have each a separate
power supply converting AC to DC. The DC-levels are
galvanic isolated from the AC input side.
Figure 5.4-1
POWER CABLE DIAGRAM
Figure 5.4-2
GROUND WIRING
5.5 S̲i̲g̲n̲a̲l̲ ̲C̲a̲b̲l̲i̲n̲g̲
The signal cabeling within the PC-rack is shown on
Figure 5.5-1.
External signal cables are either opto-cables or low-level
V24/V28 or MIL-STD-188C metallic signal cables.
The Maintenance VDU is connected by opto-cable.
The CCIS/SCARS/CAMPS signal interface cables are connected
to the V28 L/L-adapter modules through the HF-filter
connectors located in the filter-box.
The V28 L/L-adapters convert standard CCITT recommandations
V24/V28 electrical interface circuits to V28 low level
signals or MIL-STD-188C signals, i.e.
- Voltage level 6-0-6 Volts
- Slope control of transition
The HF filter connectors eliminates HF conducted emanation.
As explained in section 5.4 above the signal ground
is galvanic isolated from the AC-power input and the
Equipment Safety ground by the galvanic isolation
provided by the power supplies in the crates.
Figure 5.5-1
V24 CABLE DIAGRAM
5.6 S̲u̲b̲a̲s̲s̲e̲m̲b̲l̲i̲e̲s̲,̲ ̲C̲r̲a̲t̲e̲s̲ ̲a̲n̲d̲ ̲i̲n̲c̲l̲u̲d̲e̲d̲ ̲m̲o̲d̲u̲l̲e̲s̲
In this section are subassemblies, crates and included
modules listed and shortly characterized.
Further details can be found in:
- Protocol Converter/Hardware Assembly Breakdown
(ref 3c)
- Protocol Converter Equipment Handbook (ref 3d)
5.6.1 P̲r̲o̲c̲e̲s̲s̲o̲r̲ ̲U̲n̲i̲t̲ ̲(̲P̲U̲)̲
The configuration of the PC PU's is shown on
Figure 5.6-1 (see also Figure 5.2-2).
The following types of modules are included:
Front Crate:
a) CPU-SCM CR8002M
b) EPROM CR8013M
c) RAM, 128K CR8016M
d) LTU CR8066M
Rear Crate:
e) CSA CR8070M
f) LIA-N CR8082M
g) Power Supply (part of Mini Crate, CR8115M)
The front crate modules (a to d) are interconnected
via a CR80D mainbus mounted in the crate. All front
crate modules are single-bus modules, i.e. they are
only connected to one CR80D-bus.
Figure 5.6-1
MINI CRATE ASSEMBLY
5.6.2 A̲d̲a̲p̲t̲e̲r̲ ̲C̲r̲a̲t̲e̲
The PC Adapter Crate configuration is shown on
Figure 5.6-2 (see also Figure 5.2-2).
Each Back-Panel can be connected to up to 4 data channels,
i.e. the crate capacity is max. 8 data channels.
Each connector on the Back-Panel is, via the motherboard
in the crate, connected to one adapter-position of
the front-crate.
Opto T/R and V28 L/L-adapters can be mounted as required
in the 8 slots of the front crate.
External opto cables are fed through the Filter-Box
and terminated on the connectors on the front panel
of the OPTO T/R-module.
External electrical signal cables are connected to
the external plugs of the filtered connectors in the
Filter Box.
An internal signal cable connects the internal plug
of the filtered connector to the connector on the front
panel of the V28 L/L-adapter.
Figure 5.6-2
ADAPTER CRATE ASSEMBLY
5.6.3 F̲i̲l̲t̲e̲r̲ ̲B̲o̲x̲
The Filter-Box design is shown on Figure 5.6-3.
The Filter Box is mounted as a EMI-shielded enclosure
inside the rack (see Figures 5.2-3 and 5.2-4 for position
in rack).
External cables are entered from the installation conduits
through a circular hole in the bottom of the Filter
Box/EMI-Shielded Rack.
The lid (Figure 5.6-3) can be removed for installation.
A maximum of 53 filtered connectors can be mounted.
On Figure 5.6-4 is shown the Filtered Connectors mounted
for the PC. Unused holes are covered with blind plates.
The Filtered Connector is specified on Figure 5.6-5.
Figure 5.6-3
FILTER BOX ASSEMBLY
Figure 5.6-4
FILTER BOX ASSEMBLY
(REAR VIEW WITHOUT COVER)
Figure 5.6-5
FILTERED CONNECTOR
5.6.4 P̲a̲t̲c̲h̲ ̲P̲a̲n̲e̲l̲
A Patch Panel facility is provided for line-patching
and monitoring.
The Patch Panel is located in the rear of the rack,
see Figure 5.2-4.
The Patch Panel is connected between the PU's and the
Adapter Crate, see Figure 5.2-2.
The Patch Panel lay-out is shown on Figure 5.6-6.
Behind the front panel is mounted the required number
of Dynatech Patch Block's.(Figure 5.6-7)
Each Patch Block is shielded with a metal box for reducing
any cross-talk between the block's.
Figure 5.6-6
PATCH PANEL LAY-OUT
Figure 5.6-7
PATCH BLOCK CONNECTIONS
5.6.5 P̲o̲w̲e̲r̲ ̲L̲i̲n̲e̲ ̲F̲i̲l̲t̲e̲r̲
The Power Line Filter (PLF) is shown on Figure 5.6-8
The power cables are entered from the ducts of the
installation through a hole in the bottom of the PLF/Rack
and connected to the filter terminals.
The lid can be removed during installation.
On Figure 5.6-9 is shown a schematic of the PLF.
The PLF is a HF-filter designed to be used in facilities,
where power is supplied through security filters.
Figure 5.6-8
POWER LINE FILTER
Note: 1) CASE MATERIAL: 18GA. .0478 THK., CRS
2) FINISH: COPPER PLATE
ELECTRO-TIN OR ELECTRO-TIN FUSED
All: LI = 85 Micro Henries, Minimum a
10.0 AMPS RMS (Fusing Current OF L…0f…1…0e…,
Not less than 100 AMPS)
C…0f…1…0e… = 2.0 MFD +̲20% 600 VDC
Fig. 5.6-9
POWER LINE FILTER; SCHEMATICS
5.6.6 V̲D̲U̲
The Maintenance-VDU is shown on Figure 5.6-10.
The VDU is a Delta Data, type 7260TC with optical interface.
Figure 5.6-10
MAINTENANCE-VDU
6. T̲E̲M̲P̲E̲S̲T̲ ̲D̲E̲S̲I̲G̲N̲ ̲A̲N̲A̲L̲Y̲S̲I̲S̲ ̲O̲F̲ ̲P̲R̲O̲T̲O̲C̲O̲L̲ ̲C̲O̲N̲V̲E̲R̲T̲E̲R̲
6.1 I̲n̲t̲r̲o̲d̲u̲c̲t̲i̲o̲n̲
In the following the TEMPEST design features of the
PC are analyzed.
The analysis will be referenced to CAMPS and other
relevant sources of experience.
The subsections of this section is structured to match
the design presentation subsections of section 5.
6.2 P̲C̲ ̲E̲q̲u̲i̲p̲m̲e̲n̲t̲
The equipment layout (Figures 5.2-3 and 5.2-4) is structured
to re-use as much as possible from the CAMPS equipment
design, i.e. items used for CAMPS are included, whenever
possible. CAMPS design, see ref 4a, 4f and 4g.
The CAMPS equipment has been subject to an extensive
evaluation and testing for TEMPEST performance.
A shielding effectiveness test on empty racks including
Power Line Filter and Filter Box has been performed
(EMC-report, ref 4c).
The racks are manufactured according to quality requirements
monitoring materials and operations affecting TEMPEST
performance.
An In-Plant test has been sucessfully performed at
CR's facilities. The test was performed on a typical
CAMPS system including all applicable equipment for
CAMPS and operating all external/internal interfaces
applicable for CAMPS. (see ref 4a, 4d and 4e).
6.3 E̲M̲I̲ ̲S̲h̲i̲e̲l̲d̲e̲d̲ ̲R̲a̲c̲k̲
The EMI Shielded Rack used for the PC is a stand-alone
rack of the same type as those used for CAMPS.
6.4 P̲o̲w̲e̲r̲ ̲I̲n̲p̲u̲t̲,̲ ̲G̲r̲o̲u̲n̲d̲i̲n̲g̲
The Power Cable diagram (Figure 5.4-1) shows the internal
power cabeling in the PC rack.
a) Power Line Filter is the same filter as used in
CAMPS.
b) Mains Switch is the same unit as used in CAMPS.
c) Power Distribution Panel is the same unit as used
in CAMPS
The positioning of the items related to the power cabeling
does not differ from CAMPS in any significant way.
The three separate grounds:
- Power line neutral
- Frame ground
- Signal ground
are provided as in CAMPS. Separation between grounds
and the wiring of each ground potential is made in
the same way as in CAMPS.
6.5 S̲i̲g̲n̲a̲l̲ ̲C̲a̲b̲e̲l̲i̲n̲g̲
The signal cabeling (Figure 5.5-1) differs from CAMPS
only by the inclusion of an internal Patch Panel in
the rack.
The Patch Panel is placed between the Processor Unit
and the Adapter Crate, i.e. not directly on the outgoing
line.
In order to reduce any risk for cross-talk between
the signal lines the Patch Blocks are individually
shielded with a metal box.
6.6 S̲u̲b̲a̲s̲s̲e̲m̲b̲l̲i̲e̲s̲,̲ ̲C̲r̲a̲t̲e̲s̲ ̲a̲n̲d̲ ̲i̲n̲c̲l̲u̲d̲e̲d̲ ̲M̲o̲d̲u̲l̲e̲s̲
This section makes references to modules and items
used in CAMPS.
A description of CAMPS at the level appropriate for
comparison can be found in CAMPS System Design Specification,
ref 4g.
6.6.1 P̲r̲o̲c̲e̲s̲s̲o̲r̲ ̲U̲n̲i̲t̲ ̲(̲P̲U̲)̲
The following main differences can be found, when comparing
the PC-PU with the Processor Unit in CAMPS.
- CAMPS uses a dualized processor concept, i.e. two
independent PU's, the one being stand-by and the
other on-line.
The PC-PU is a single, non-dualized PU.
- CAMPS includes a PU-crate containing main memory
and main processors and a CU-crate (Channel Unit)
with input/output-controllers.
The PC has main processor, main memory and I/O-controllers
within one crate.
- CAMPS uses remote storage of program code on mirrored
disks.
PC has no disks, - the complete application program
code is burned into PROM's.
- CAMPS is designed using the CR80 Mapped Processor
concept. In this concept all modules have access
to 2 main buses.
PC uses the unmapped CR80 processor, where each
module has only access to one Main Bus.
6.6.1.1 P̲U̲-̲C̲r̲a̲t̲e̲ ̲
The PU-crate Figure 5.6-1 is mechanically the same
as used for the CAMPS Watch Dog Processor Unit (WDPU).
The Crate includes:
- Power Supply (AC-to-DC converter + DC-regulators).
- Fans for cooling
- Motherboard with CR80D Main Bus.
The CR80D Main Bus Product Specification (ref 4h) describes
the Mainbus. The Mainbus specifications for the PC-PU
and the CAMPS PU (and CU) are in fact identical, i.e.
signals are the same and frequencies are the same.
6.6.1.2 P̲U̲-̲M̲o̲d̲u̲l̲e̲s̲ ̲
The design of the PC-modules Figure 5.6-1 is similar
to the corresponding modules used in CAMPS PU and CU,
i.e.
- the functions on the modules are the same.
- the same mix of electronic components have been
used.
- board lay-out standards (e.g. decoupling, application
of ground planes) have been used.
The logic functions are implemented using VLSI and
LSI IC's from the commercial available TTL and N-MOS
IC-families.
Below is the PC-PU-modules listed with the closest
corresponding CAMPS module:
PC CAMPS
a) CPU/SCM CPU/CACHE
b) RAM RAM
c) EPROM RAM
d) CSA MIA
e) LTU LTU
f) LIA-N LIA-N
6.6.2 A̲d̲a̲p̲t̲e̲r̲ ̲C̲r̲a̲t̲e̲
The Adapter Crate and the use of the crate are identical
to CAMPS.
Modules used in the Adapter Crate are the same as those
used in CAMPS.
6.6.3 F̲i̲l̲t̲e̲r̲ ̲B̲o̲x̲
The Filter Box is the same as used for CAMPS.
The use of the Filter Box complies with CAMPS use.
6.6.4 P̲a̲t̲c̲h̲ ̲P̲a̲n̲e̲l̲
The Patch Panel has not been used in CAMPS.
As described in section 6.5 above the Patch Panel is
a) placed as a rather uncritical element.
b) each Patch Block has been enclosed into a shielding
box.
This box is supplied by Telindus, Belgium and is
a shape box for modules DP-16-5 developed in coordination
between ACE COMSEC and Telindus for similar use.
6.6.5 P̲o̲w̲e̲r̲ ̲L̲i̲n̲e̲ ̲F̲i̲l̲t̲e̲r̲ ̲(̲P̲L̲F̲)̲
The Power Line Filter is the same as used in CAMPS,
and the use of the PLF is identical to the use in CAMPS.
6.6.6 V̲D̲U̲
The VDU is the same as used in CAMPS. The unit has
passed TEMPEST testing.
