Crypto CRYPTOCOM HC-250 User manual

HAGEUN-CRYPTOS
CRYPTO AG
3B866
CRYPTOCOiVP HC-250
INSTALLATION INSTRUCTIONS

3B866
HAGEUN-CRYPTOS
CRYPTO AG
WARNING: THE HC-250 OPERATES WITH 110 OR 220 VAC MAINS.
ALWAYS ENSURETHAT CORRECT GROUNDING CONNECTIONS
ARE MADE.AVOID CONTACT WITH CONDUCTORS CARRYING
110/220 V. FAILURE TO COMPLY WITH THESE PRECAUTIONS
MAY RESULT IN SEVERE INJURY.
CAUTION: BEFORE CONNECTING THE SYSTEM TO THE MAINS SUPPLY,
ENSURE THE VOLTAGE SELECTOR IS SET TO THE CORRECT
POSITION.
DETAILS ON VOLTAGE SELECTION ARE INCLUDED IN
SECTION 6 TO THESE INSTRUCTIONS.
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3B866
HAGEUN-CRYPTOS
CRYPTO AG
TABLEOFCONTENTS
Page
1, GENERAL 1-1
i-i
1-2
1-3
1-5
1-5
1-5
1-5
1-6
2-1
2-1
2-1
2-1
2-1
2-2
2-2
2-2
2-3
2-3
2-3
3-1
3-1
3-1
3-2
3-3
3-4
3-5
3-5
3-6
3-6
3-6
3-7
3-7
3-8
1.1. DESCRIPTION OF THE EQUIPMENT
1.2. PRINCIPLES OF OPERATION
1.3. KEY HIERARCHY
1.4. MECHANICAL CONSTRUCTION
1.4.1. REMOTECONTROLUNIT
1.4.2. BASIC UNIT
1.4.3. PORTABLE VERSION
1.5. ACCESSORIES
2, TECHNICAL DATA
2.1. AUDIO INTERFACE
2.2. COMMUNICATION INTERFACE
2.3. TRANSMISSION DELAY
2.4. SIGNALLING
2.5. SYNCHRONIZATION
2.6. CHANNEL REQUIREMENTS
2.7. CRYPTOLOGICAL DATA
2.8. POWER SUPPLY
2.9. ENVIRONMENTAL
2.10. DIMENSIONSAND WEIGHT
3, SYSTEMDESIGN
3.1. DESCRIPTION OF PCB FUNCTIONS
3.1.1. INTERFACEBOARD
3.1.1.1. Universal Interface Board
3.1.1.2. Half-Duplex Interface Board
3.1.2. FILTER/MIXER BOARD
3.1.3. CODER BOARD
3.1.4. MICROPROCESSOR BOARD
3.1.5. MEMORY BOARD
3.1.6. DIGITAL INTERFACE BOARD
3.1.7. POWER SUPPLY BOARD
3.1.8. FRONT PANEL
3.1.9. REMOTE CONTROLUNIT
3.2. SIGNAL LIST

HAGEUN-CRYPTOS
3B866 CRYPTO AG -II-
4 1
411
4. 1 2
413
4 1 4
41.5
4 2
4 3
Page
4. INTERFACING PRINCIPLES ^
INTERFACING CONCEPTS FOR DIFFERENT APPLICATIONS 4-1
STANDARD TELEPHONE APPLICATIONS 4-1
RADIO TELEPHONE APPLICATIONS 4-1
HALF-DUPLEX RADIO APPLICATIONS WITH UNIVERSAL
INTERFACE BOARD 4-3
HALF-DUPLEX RADIO APPLICATIONS WITH HALF-DUPLEX
INTERFACE BOARD 4-4
HALF-DUPLEX RADIO APPLICATIONS WITH X-MODE INTERFACES 4-5
DETAILED DESCRIPTION OF UNIVERSAL INTERFACE BOARD 4-6
DETAILED DESCRIPTION OF HALF-DUPLEX INTERFACE BOARD 4-13
5, ACCESSORIES 5-">
5.1. MOUNTING KIT MDF-lOO 5-1
5.2. GOOSENECK MDG-lOO 5-2
5.3. BATTERY SUPPLY CABLE ACP-250 5-2
5.4. AC MAINS CABLE ACC-123 5-2
5.5. REMOTE CONTROL CABLE RCC-250 5-3
5.6. AUDIO CABLE AFC-250 5-3
5.7. SYSTEM CABLE CAS-250 5-4
5.8. BYPASS PLUG TEP-250 5-4
5.9. MOUNTING HARDWARE PAH-250 5-4
5.10. TELEPHONE TFC-250 5-4
6. INSTALLATION PROCEDURES 6"]
6.1. INSTALLATIONS USING THE SYSTEM CABLE CAS-250 6-1
6.1.1. CONNECTING THE REMOTE CONTROL BRANCH OF THE SYSTEM CABLE
TO THE REMOTE CONTROL UNIT 6-1
6.1.2. CONNECTING THE AUDIO BRANCH OF THE SYSTEM CABLE TO A
TELEPHONE SET 6-2
6.1.3. CONNECTING THE POWER SUPPLY 6-3
6 . 2 . I N S TA L L AT I O N S U S I N G T H E M O U N T I N G K I T M D F - 1 0 Q 6 - 4
6.2.1. CONNECTING THE REMOTE CONTROL UNIT TO THE REMOTE
CONTROL CABLE RCC-250 6~5
6 . 2 . 2 . C O N N E C T I N G C A B L E S T O T H E M O U N T I N G K I T 6 - 7
6.2.2.1. Removing the Rear Panel of the Mounting Kit 6-7
6.2.2.2. Connecting the DC cable ACP-250 6-7
6.2.2.3. Connecting the Remote Control Cable RCC-250 6-7
6.2.2.4. Connecting the Audio Cable AFC-250 6-7
6.2.2.5. Replacing the Rear Panel of the Mounting Kit 6-8
6.2.2.6. Additional Grounding 6-8
6.2.3. CONNECTING THE POWER SUPPLY 6-8

HAGEUN-CRYPTOS
3B866 CRYPTO AG -HI"
Page
6.2.3.1. Connecting AC Supply 6-8
6.2.3.2. Connectong DC Supply 6-8
6.3. INSTALLATION OF THE PORTABLE VERSION 6-9
7 . A D A P T I O N O F I N T E R F A C E B O A R D 1 A
1 1 STANDARD TELEPHONE APPLICATIONS (UNIVERSAL INTERFACE BOARD) 7-2
7*2 RADIO TELEPHONE APPLICATIONS (UNIVERSAL INTERFACE BOARD) 7-3
7*3* HALF-DUPLEX RADIO APPLICATIONS (UNIVERSAL INTERFACE BOARD) 7-4
8. PARAffTER PROGRAMING
A.1.1
A.1.2
A.1.3
8-1
9, TROUBLESHOOTING 9_1
9 1 CHECK LIST FOR OPERATING PARAMETERS 9-2
9 2 SUMMARY OF POSSIBLE MALFUNCTIONS 9-3
9 2 1. MALFUNCTIONS ASSOCIATED WITH POWER SUPPLY 9-3
9.2.2. MALFUNCTIONSASSOCIATED WITH SYNCHRONIZATIONAND P/C
SWITCHING 9-4
9.2.3. MALFUNCTIONS ASSOCIATED WITH ACTUAL COMMUNICATION 9-6
Al: APPENDIX: Programming of Structure Key and Key Input
Identification Code Al-1
Format and Size Al-1
Address Assignment \
Standard Data A1~2
A.1.4. Customer Specific Programming of the Key Input
Identification Code Al-3
A.1.5. customer Specific Programming of the Structure Key Al-4

HAGEUN-CRYPTOS 1
3B866 CRYPTO AG -IV-
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FIGU RES
Fig. 1.1.
Fig. 1.2.
Fig. 1.3.
Fig. 1.4.
Fig. 1.5.
Fig. 3.1.
Fig. 3.2.
Fig. 4.1.
Fig. 4.2.
Fig. 4.3.
Fig. 4.4.
Fig. 4.5.
Fig. 4.6.
Fig. 4.7.
Fig. 4.8.
Fig. 4.9.
Fig. 4.10
Fig. 4.11
Fig. 4.12
Fig. 4.13
Fig. 4.14
Fig. 4.15
Fig. 5.1.
Fig. 5.2.
Fig. 5.3.
Fig. 5.4.
Fig. 5.5.
Fig. 5.6.
Fig. 5.7.
Fig. 5.8.
Fig. 6.1.
Fig. 6.2.
Fig. 6.3.
Fig. 6.4.
Fig. 6.5.
Fig. 6.6.
Fig. 6.7.
Fig. 6.8.
Fig. 6.9.
Fig. 6.10
DUPLEX VOICE CIPHER SYSTEM
HC-250 PORTABLE VERSION
PRINCIPLES OF OPERATION
LOCATION OF MODULES
ACCESSORIES
BLOCKDIAGRAM
PINASSIGNMENT OF SYSTEM CONNECTOR
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INTERFACING TO STANDARD TELEPHONE
INTERFACING TO RADIO TELEPHONE (USING UNIVERSAL
INTERFACE BOARD)
INTERFACING TO HALF-DUPLEX RADIO (USING UNIVERSAL
INTERFACE BOARD)
INTERFACING TO HALF-DUPLEX RADIO (USING HALF-DUPLEX
INTERFACE BOARD)
INTERFACING TO HALF-DUPLEX RADIO (WIRING OF MAIN
FUNCTION)
INTERFACING TO HALF-DUPLEX RADIO WITH X-MODE INTERFACE
FUNCTION DIAGRAM OF UNIVERSAL INTERFACE BOARD
UNIVERSAL INTERFACE BOARD CIRCUIT MODIFICATIONS
UNIVERSAL INTERFACE BOARD: CONTROL INPUT SECTION
UNIVERSALINTERFACE BOARD: COMPONENT LAYOUT
GAIN SETTING OF INTERFACE AMPLIFIERS
FUNCTION DIAGRAM OF HALF-DUPLEX INTERFACE BOARD
HALF-DUPLEX INTERFACE BOARD CIRCUIT MODIFICATIONS
HALF-DUPLEX INTERFACE BOARD: CONTROL SIGNAL SECTION
HALF-DUPLEX INTERFACE BOARD: COMPONENT LAYOUT
MOUNTING KIT MDF-100
GOOSENECKMDG-100
DC BATTERY SUPPLY CABLE ACP-250/AC MAINS CABLE ACC-123
REMOTE CONTROLCABLE RCC-250
AUDIO CABLE AFC-250
SYSTEM CABLE CAS-250
BYPASS PLUG TEP-250
MOUNTING HARDWARE PAH-250
SCHEMATIC DIAGRAM CIPHERED TELEPHONE (SUBSCRIBER)
SIDE FITTING OF REMOTE CONTROL CABLE
FITTING OFAUDIO BRANCH OF SYSTEM CABLE TO TELEPHONE
STATIONS
WIRING OF SCREW TERMINALS
SCHEMATIC DIAGRAM CIPHERED MOBILE STATION
FITTING REMOTE CONTROLCABLE THROUGH BASE PLATE
MOUNTING THE REMOTE CONTROLUNIT USING THE GOOSENECK
WIRING OF MOUNTING KIT MDF-100
GROUNDING RECOMMENDATIONS
INSTALLATION OF HC-250 PORTABLE VERSION

HAGEUN-CRYPTOS
3B866 CRYPTO AG -V-
FIGURES
Fig. 7.1. INTERFACE PARAMETERS (FOR UNIVERSAL INTERFACE)
Fig. 7.2. INTERFACE PARAMETERS (FOR HALF-DUPLEX INTERFACE)
Fig. 8.1. SUMMARY OF OPERATING PROCEDURES
Fig. 8.2. DETAILED OPERATING PROCEDURES
Fig. 10.1. MEMORY BOARD COMPONENT LAYOUT

HAGEUN-CRYPTOS
3B866 CRYPTO AG 1-1
1. GENERAL
This manual is intended to aid trained technicians to install the
HC-250 Voice Ciphering System.
1.1. DESCRIPTION OF THE EQUIPMENT (Ref. Figs. 1.1 and 1.2)
The CRYPTOCOM® HC-250 is a high security voice ciphering system
designed for operation over switched telephone networks, fixed
and mobile UHF/VHF and HF-SSB radio links. The HC-250 uses sophisti
cated ciphering techniques and advanced technology, eliminating re
sidual intelligibility on the line and giving excellent speaker re
cognition, yet providing a high level of security.
The complete system consists of a basic unit and a remote control
unit, which are connected to a telephone or radio. All operating
procedures are carried out via the remote control unit, thus allowing
the basic unit to be located conveniently. A version is also available
as a self-contained cipher terminal, housed in an attractive Samsonite
briefcase. This version is referred to in these instructions as the
"portable version".
An integrated key management system, providing a customer specific
parameter, a structure key, communication keys, user identification
codes and a key-input identification code, allows adaption to user
requirements. The system can either be programmed for simple opera
tion, where the only operator intervention required is the switching
between plain and cipher, or a more complex hierarchy can be estab
lished, to protect against unauthorized use. In normal telephone
operations it is possible to use a telephone for the plain/ cipher
switching.
The system also includes built-in self-test features (BITE), which
facilitate the detection of failures and faults.
The CRYPTOCOM®HC-250 is designed to operate, in duplex or half-
duplex mode, via practically any voice grade circuit, such as:

HAGEUN-CRYPTOS
3B866 CRYPTO AG 1 -2
Switched public telephone networks
Fixed or mobile VHF/UHF radio communication systems for military
governmental and civilian (VIP) applications.
HF/SSB long distance radio communications for strategic links,
embassy communication networks, etc.
The system is designed to meet all the requirements for universal
voice ciphering equipment, including:
Good quality, intelligibility and speaker recognition of the
ciphered voice signal
Ease of operation without restriction of the equipment's
versatility
Complete freedom from residual intelligibility of the ciphered
signal, giving very high level security
High immunity from transmission disturbances, such as linear and
non-linear distortions, fading, noise, etc.
Fully automatic operation, i.e. synchronization, key check,
tracking, etc.
1.2. PRINCIPLES OF OPERATION (Ref. Fig. 1.3)
The heart of the HC-250 Duplex Voice Cipher System is a micro
processor, which
Controls all operations
Calculates the key stream generator, the permutation, etc.
Generates a message key and performs a key check in both sets
of equipment during the initialization phase
Permits an interactive dialogue with the operator through the
remote control unit for mode and key selection, user identifi
cation code, test routines, etc.

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HAGEUN-CRYPTOS
36866 CRYPTO AG
The HC-250 employs a fully automatic, initial loop synchronization
with additional tracking. It consists of time frame and key stream
synchronization using an automatically generated message key which
sets the key generator at the receiving side accordingly. During
this initialization phase a check is also performed to ensure that
both stations are using the same key. This key check is carried out
using the key "signature", which is a derivative of the key itself.
The initialization procedure is automatically carried out for the
return path. In multi-point communications with push-to-talk opera
tions the initialization procedure is repeated before each trans
mission phase and no key check is carried out.
The voice signals from the microphone (350 - 3000 Hz) are first
matched for level and impedances in the audio interface board and
are then passed to the analog signal processing board. The resulting
■signals are then converted into digital form, for further processing
in the CPU, where the signals are divided into time segments of
different lengths. These slots are then permutated according to the
- k e y s t r e a m g e n e r a t o r s i g n a l s . T h e s e g m e n t a t i o n y i e l d s a v a r i e t y o f
1.3 x 10 and the permutation of 4.8 x 10 . After permutation the seg
ments are transmitted with a certain time compression which allows the
introduction of tracking information in order to maintain synchronism.
At the receiving end the ciphered information is processed and con
verted back into plain audio signals and interfaced to the earpiece.
The HC-250 may be adapted to any kind of audio equipment by adaption
of the audio interface board.
1.3. KEY HIERARCHY
The key stream generated depends on four different keys:
Customer-specific parameters
Structure key (SK)
Communication key (CK)
Message key (MK)