Philips SPENDEX 40 User manual

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NATO Restricted
SPEECH ENCRYPTIUN DECRYPTION EQUIPMENT
TYPEUAS251/U0
Operating Manual
for use on NATO-IVSN system
incorporating KDC
PHILIPSUSFARV
NATO Restricted
PHILIPS PHILIPS

NATO Restricted
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SPEECH ENCRYPTION DECRYPTION EQUIPMENT
TYPE UA0251/00
Operating Manual
for use on NATO-IVSN system
incorporating KDC
PHILIPSUSFABV
NATO Restricted
Document No. 9922 154 12551
Issue date: 09-05-88
Printed in The Netherlands
All rights strictly reserved. Reproduction or issue to third parties, in any form whatsoever, is not
permitted without the written consent of the proprietors. In addition Philips Usfa B.V. Eindhoven,
The Netherlands, reserve the right to make modifications and improvements in their design
without prior notice.
Philips Usfa B.V.
Tel : ( 0) 4 0 72 2 60 0
P.O. Box 218 5600 MD Eindhoven,
Telex: 51732 USFAE NL
The Netherlands
Fax. [phone]
PHILIPS

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CONTENTS
Page
Abbreviations ii
Definitions ii
1 I N T R O D U C T I O N 1 - 1
1 . 1 G e n e r a l 1 - l
1 . 2 - T e c h n i c a l d e s c r i p t i o n 1 - 1
1 . 3 M e c h a n i c a l c o n s t r u c t i o n 1 - 1
1 . 4 C o n fi g u r a t i o n 1 - 1
2 K E Y V A R I A B L E S E T T I N G S 2 - 1
2 . 1 G e n e r a l 2 - 1
2 . 2 K D C c a l l v a r i a b l e 2 - 1
2 . 3 N e t v a r i a b l e 2 - 1
2 . 4 K D C u n i q u e v a r i a b l e 2 - 1
3 S E C U R I T Y 3 - 1
3 . 1 P h y s i c a l s e c u r i t y 3 - 1
3 . 2 G e n e r a l z e r o i s e 3 - 1
4 C O N T R O L S A N D C O N N E C T I O N S 4 - 1
4 . 1 S w i t c h e s 4 - 1
4 . 2 P u s h b u t t o n s 4 - 1
4 . 3 K e y b o a r d 4 - 2
4 . 4 I n d i c a t i o n s 4 - 3
4 . 5 C o n n e c t i o n s 4 - 3
4 . 6 M a i n s v o l t a g e s e l e c t o r 4 - 4
4 . 7 F u s e h o l d e r s 4 - 4
4 . 8 B a t t e r y c o m p a r t m e n t 4 - 4
5 O P E R A T I N G I N S T R U C T I O N S 5 - 1
5 . 1 G e n e r a l 5 - 1
5 . 2 S w i t c h i n g o n o f t h e t e r m i n a l 5 - 1
5 . 3 S e t t i n g u p o f a c l e a r c a l l 5 - 2
5.4 Setting up of a secure call on the basis of a KDC call
v a r i a b l e 5 - 3
5 . 5 S e t t i n g u p o f a s e c u r e c a l l o n t h e b a s i s o f t h e N e t v a r i a b l e 5 - 4
5 . 6 S e t t i n g u p o f a s e c u r e d a t a c o n n e c t i o n 5 - 5
5 . 7 R e q u e s t i n g a c a l l v a r i a b l e f r o m t h e K D C 5 - 6
5 . 8 I n s p e c t i o n o f w h e t h e r a v a l i d K D C c a l l v a r i a b l e i s p r e s e n t . . . 5 - 8
5 . 9 I n s p e c t i o n o f w h e t h e r a v a l i d N e t v a r i a b l e i s p r e s e n t 5 - 8
5 . 1 0 U p d a t i n g o f t h e N e t v a r i a b l e 5 - 9
6 E R R O R A N D A L A R M I N D I C A T I O N S 6 - 1
6 . 1 E r r o r i n d i c a t i o n s 6 - 1
6 . 2 A l a r m i n d i c a t i o n s 6 - 3
F i g . 4 . 1 C o n t r o l s a n d c o n n e c t i o n s o n f r o n t a n d l e f t - h a n d s i d e . . . . 4 - 5
F i g . 4 . 2 C o n t r o l s a n d c o n n e c t i o n s o n r e a r a n d r i g h t - h a n d s i d e . . . . 4 - 6
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Abbreviations
C I K C r y p t o I g n i t i o n K e y
DT E D at a Te r mi n a l E q ui p me n t
E K D E l e c t r o n i c K e y D i s t r i b u t i o n
ID Identification
IVSN Initial Voice Switched Network
K D C K e y D i s t r i b u t i o n C e n t r e
P t t P r e s s t o t a l k
STU-II Secure Telephone Unit (second generation)
Definitions
CIK module:
Programmed module, unique per terminal, required for crypto operation.
Electronic Key Distribution:
A system by which key variables are generated and then transmitted by
electronic means.
ID Number:
5-digit number, unique per terminal, assigned to those terminals that can
operate in the KDC mode.
KDC Call Variable:
Key variable for normal use, issued by the Key Distribution Centre for
producing encrypted traffic with a terminal of type SPENDEX 40 or STU-II.
KDC Unique Variable:
Key variable, unique per terminal, required for the decryption of a KDC call
variable.
Key Distribution Centre:
Central unit which can issue a call variable on request.
Net Variable:
Key variable for producing encrypted traffic with a terminal of type
SPENDEX 40 or STU-II. The Net variable shall be used only for emergency cases
if for some reason or other no KDC call variables are available.
Secure Telephone Unit:
Speech encryption/decryption terminal of the type TSEC/KY-71A.
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SPENDEX 40 UA 8251/00
INTRODUCTION
OPERATING MANUAL
1.1
1.2
1.3
1.4
General
This manual contains operating instructions for the digital speech
encryption/decryption equipment SPENDEX 40, type UA 8251/00, for use
in NATO-IVSN system incorporating KDC.
Technical Description
The SPENDEX 40 can provide secure speech and secure data
communication over the NATO-IVSN system to either a STU-II or another
SPENDEX 40 equipment. The terminal can be used also as a normal
telephone for nonsecure speech (no data) communication.
Secure communication is possible in the KDC mode using a KDC call
variable or in case of emergency using the Net variable.
A call can be set up with a certain precedence level. A choice can be
made of four precedence levels: priority, immediate, flash, and flash
override.
Mechanical Construction
The terminal is a compact appliance constructed of modules and
primary designed for office use. For mobile use a shock mounting is
available.
Configuration
Terminal
Handset
IVSN line connecting cable
Mains power supply cable
CIK module
Transport case
Set spare fuses
UA 8251/00
UA 8252/00
UA 8240/01
5722 660 30670
UA 8247/00
UA 8342/00
2 x 250 V/500 mA slow (2422 086 01015)
2 x 110 V/l A slow (2422 086 01021)
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KEY VARIABLE SETTINGS
2.1 General
For the purpose of secure communication the following types of key
variables are available to the terminal:
- KDC call variable
- Net variable
- KDC unique variable
The KDC unique variable and the Net variable are loaded into the
SPENDEX 40 from a loading device KYK-13 or a tape reader KOI-18 and
are stored in encrypted form in a memory. This memory receives its
supply from the battery, so that its contents are not lost in the
event of a power breakdown.
2.2 KDC Call Variable
A KDC call variable is a key variable used to set up a secure call
with a terminal of type SPENDEX 40 or of type STU-II. The call
variable will have to be requested from the KDC. A received KDC call
variable can be stored in encrypted form temporarily or permanently.
The memory has space for the temporary storage of 1 KDC call variable
and the permanent storage of at the most 20 KDC call variables
(compartments 40...59).
Secure communication based on a KDC call variable is possible only if
both terminals are provided with their KDC unique variable.
2.3 Net Variable
The Net variable is a key variable for setting up a secure call with
a terminal of type SPENDEX 40 or of type STU-II. The Net variable
shall be used only for emergency cases if no KDC call variable is
present in the terminal and communication with the KDC is for some
reason or other not possible. The Net variable for emergency cases is
stored in compartment 00 of the memory.
Note: The remaining compartments 01...19 for storing other Net
variables are not used in the NATO-IVSN system.
2.4 KDC Unique Variable
The KDC unique variable is a key variable, unique per terminal, which
is required for the decryption of a KDC call variable. Without the
KDC unique variable, secure communication based on a KDC call
variable is not possible.
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3 SECURITY
3.1 Physical Security
The terminal can operate in a secure mode only if the CIK module
corresponding specifically to the terminal is connected. In this way
the CIK module represents physical security against unauthorised use
in the secure mode. Without the CIK module, the terminal can be used
only as a normal telephone for nonsecure communication.
The CIK module is tested automatically each time it is connected. If
its contents (i.e. the CIK) are valid, then "CIK OK " (terminal
loaded) or "NUL.CIK " (terminal empty and CIK=0) appears in the
display for 3 s. If the CIK is not valid, then "ILL.CIK " or
"ERR.CIK " appears in the display.
3.2 General Zeroise
Pressing of the ZEROIZE push button makes all stored key variables
unusable, whether the supply is switched on or off. If the supply
voltage is present, "%ALARM " appears in the display and shortly
after that "ZEROISED". Furthermore the contents of a CIK module that
may be connected will be destroyed.
Only after new key variables have been loaded will it be possible to
use the terminal again for secure communication.
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4 CONTROLS AND CONNECTIONS (see Fig. 4.1 and Fig. 4.2)
4.1 Switches
4.1.1 On/Off Switch
The function of this switch is to switch the supply voltage on and
off.
4 . 1 . 2 H o o k S w i t c h
The hook switch detects the picking up and replacing of the handset.
Picking up leads to going off hook, so that the terminal is switched
to the line. Replacing leads to going on hook, so that the terminal
is switched off the line. During the replacing of the handset an
alarm that may be present is reset.
4.1.3 Ptt Switch
In the NATO-IVSN system the Ptt switch has no function.
4.2 Push Buttons
4.2.1 SECURE Push Button
After a clear call has been set up, pressing the SECURE push button
will establish a secure call providing the KDC call variable or the
Net variable has been selected.
4.2.2 ZEROIZE Push Button
When the ZEROIZE push button is pressed, all key variables that are
stored will be rendered useless. If the supply voltage is present,
then moreover the contents of a possibly present CIK module will be
destroyed.
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4.3 Keyboard
The terminal is equipped with a keyboard consisting of four rows of
four keys each. The keys have the following functions:
4 . 3 . 1 N u m e r i c a l K e y s 0 . . . 9
The numerical keys 0...9 are used for introducing the numerals 0...9.
4.3.2 P Key (P - Precedence)
By means of this key a precedence level can be selected. The P key is
also used to terminate an update action.
4.3.3 KDC Key
Pressing of the KDC key indicates that an ID number will be dialled
in.
4.3.4 NET Key
Pressing of the NET key indicates that a compartment number will be
dialled in.
4 . 3 . 5 D T E K e y
Pressing of the DTE key during secure traffic changes the operating
mode of the terminal from speech to data or from data to speech. The
DTE key is also used to interrupt an update action.
4.3.6 * Key
Pressing of the * key in the on hook condition indicates that an
update action follows.
4.3.7 # Key
In the NATO-IVSN system the // key has no function.
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4.4 Indications
4.4.1 LED
The LED is located behind the display window. When illuminated, the
LED indicates that the terminal is operating in the secure data mode
The LED has also an alarm function. It will flash as soon as a fatal
hardware alarm is detected during the self-test; an acoustic signal
is also produced.
4.4.2 Display
The terminal is provided with an eight-character alphanumeric
display. This display provides information for the user about the
state of the terminal.
4.5 Connections
4.5.1 Fill-gun Connector
Connector for connecting a key variable loading device.
4 . 5 . 2 C I K C o n n e c t o r
Connector for connecting the CIK module.
4.5.3 Handset Connector
Connector for connecting the handset.
4.5.4 Data Connector
Connector for connecting a data terminal equipment (e.g. a
facsimile).
4.5.5 Line Connector
Connector for connecting the line connecting cable.
4.5.6 Modem Connector
Connector for connecting a radio modem.
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