Philips SPENDEX 40 User manual

G3 fl
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
n
JU
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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]
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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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4.5.7 Mains Connection
Connection for the 110/220 V mains voltage.
4.5.8 Earth Connection
Connection for "security" earth.
4 . 6 M a i n s V o l t a g e S e l e c t o r
The function of the mains voltage selector is to set the power supply
to the appropriate input voltage (110 V or 220 V).
4.7 Fuse Holders
Fuses : 2 x 110 V/l A slow or
2 x 250 V/500 mA slow
4 . 8 B a t t e r y C o m p a r t m e n t
The battery compartment contains a penlight battery, which retains
the key variables during a power breakdown.
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Ptt switch
Hook switch
ZEROIZE
push button
Fill-gun
connector
SECURE
push button
CIK connector
Tote p l ate
Keyboard
Handset
connector
Data
connector
Fig. 4.1: Controls and connections on front and left-hand side
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Mains
voltage selector
Line connector Battery compartment
Modem connector
On/off switch
Earth
connection
Fuse holder
Fuse holder
Mains
connection
Type plate
Fig. 4.2: Controls and connections on rear and right-hand side
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OPERATING INSTRUCTIONS
5.1 General
This chapter contains the operating instructions at the user's level
The operation at the user's level is limited to:
- the setting up of a clear call;
- the setting up of a secure call on the basis of a KDC call
variable;
- the setting up of a secure call on the basis of the Net variable;
- the setting up of a secure data connection;
- the requesting of a call variable from the KDC;
- inspection of whether a valid KDC call variable is present;
- inspection of whether a valid Net variable is present;
- updating of the Net variable.
5.2 Switching on of the Terminal
The terminal is switched on by putting the on/off switch in the "ON"
position. After the switching on, the terminal commences with an
initiation procedure, which is followed by an automatic self-test.
During the self-test procedure "TESTING " appears in the display (not
implemented in all terminals). If during the self-test no errors are
de t e ct e d, " * " a p pe a rs i n t he d i s pl a y an d t h e te r mi n al i s r e ad y
for operation. If self-testing does reveal an error, a report
depending on the cause appears in the display. If a fatal hardware
alarm is concerned, then furthermore the LED will start flashing and
an alarm signal will become audible.
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5 . 3 S e t t i n g u p o f a C l e a r C a l l
This section describes the actions to be performed in order to set up
an IVSN clear call.
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Actions Calling terminal Called terminal
(if SPENDEX 40)
LED Display LED Display
Start conditions:
- Terminals on hook ••* »• "* «
Calling terminal:
1. Go off hook (see
Note 1).
X" »* "
2. Wait for dialling tone. X" »* «
3. Select, if required, a
precedence level by
pressing the P key
once, twice, three or
four times (see Note 2):
- pressing once:
- pressing twice:
- pressing three times:
- pressing four times:
"PRIORITY"
"IMMEDIAT"
"FLASH
"FLSH OVR"
»* "
4. Dial in IVSN telephone
number.
" NNNNNNN"
(ring
"* »•
jing signal)
Called terminal:
1. Go off hook. " NNNNNNN" "PLAIN
Nonsecure speech possible
(see Note 3)
NNNNNNN - seven digits of I\ SN telephone numbei• (N - 0...9)
Note 1: Before setting up a clear call in preparation for setting up
a secure call, check first that the relevant key variable is
present (see section 5.8 or section 5.9).
Note 2: Selection of a precedence level is only possible if the IVSN
access switch is programmed accordingly. A precedence level
can be chosen only once. Correction of the precedence level
is possible only after going on hook again, then going off
hook and selecting the appropriate level.
Note 3: A rapid intermittent signal during conversation indicates
pre-emption; finish conversation immediately and go on hook.
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5.4 Setting up of a Secure Call on the Basis of a KDC Call Variable
This section describes the actions to be performed in order to change
from a clear call to a secure call based on a KDC call variable. The
transition to a secure call based on a KDC call variable is possible
only if the terminal at the other end (SPENDEX 40 or STU-II) is
provided with its KDC unique variable. The initiative to go over to a
secure call can be taken only by the calling party.
Actions
Start conditions:
- CIK modules connected
- Clear call connection
Calling terminal:
1. Press KDC key.
2. Dial in ID number of
called party.
3. Press SECURE push
button (within
5 seconds).
Secure speech possible (see
Note 3)
Calling terminal
LED Display
" NNNNNNN"
"ID XXXXX"
"ID DDDDD"
"SECURE ?"
(See Note 1)
"WAIT
"SYNCAQ "
"SYNC ? "
"CRYPTO "
Called terminal
(if SPENDEX 40)
LED Display
"PLAIN
"PLAIN
"PLAIN
"WAIT
"* EKD
"SYNC
"CRYPTO
(See Note 2)
DDDDD ID number (D = 0...9)
Note 1: If one does not wish to utilise the selected ID number, but
wants to select another ID number, then the selected ID
number can be cancelled by pressing of the KDC key twice in
succession. In the display, "NO ID " then appears.
Note 2: If the attempt to achieve synchronisation fails, both
term inals r evert au toma tical ly to cle ar traf fic (bo th
d i s p l a y s e x h i b i t " P L A I N " ) .
Note 3: A rapid intermittent signal during conversation indicates
pre-emption; finish conversation immediately and go on hook.
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5.5 Se ttin g u p of a Sec ure Cal l on the Ba sis of t he Net Var iabl e
Thi s s e c t i o n describes the act i o n s t o b e p e rformed in order to c h a n g e
from a clear cal l t o a s e c u r e c a ll b a s e d on t h e N e t v ar i a b le . The
t r a n s i t i o n t o a s e c u r e c a l l b a s e d o n t h e N e t v a r i a b l e i s p o s s i b l e
only if the termi nal at the other end (SPENDEX 40 or STU-II) i s also
p r o v i d e d w i t h t h e N e t v a r i a b l e . T h e i n i t i a t i v e t o g o o v e r t o a s e c u r e
c a l l c a n b e t a k e n o n l y b y t h e c a l l i n g p a r t y.
Actions Calling terminal Called terminal
(if SPENDEX 40)
LED Display LED Display
Start conditions:
- CIK modules connected
- Clear call connection
" NNNNNNN" "PLAIN
Calling terminal:
1. Press NET key. "COMPART?" "PLAIN
2. Dial in compartment
number 00.
"NETOO
"SECURE ?"
(See Note 1)
"PLAIN
3. Press SECURE push
button (within
5 seconds).
"WAIT
"SYNCAQ "
"SYNC ? "
"CRYPTO "
(S€.e Note
"WAIT
"* EMG "
"SYNC
"CRYPTO "
* 2)
Secure speech possible (see
Note 3)
Note 1: If one wishes to correct the compartment number, then the
selected compartment number can be cancelled by pressing of
the NET key twice in succession. In the display, "NO C0MP "
then appears.
Note 2: If the attempt to achieve synchronisation fails, both
t e r m i n a l s r e v e r t a u t o m a t i c a l l y t o c l e a r t r a f fi c ( b o t h
d i s p l a y s e x h i b i t " P L A I N " ) .
Note 3: A rapid intermittent signal during conversation indicates
pre- e m pt io n; fi ni sh conv e r s ation i m m e diate l y a n d go on hoo k .
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5.6 Setting up of a Secure Data Connection
This section describes the actions to be performed in order to change
from a secure call to a secure data connection with either a
SPENDEX 40 or STU-II terminal. The initiative to go over to a secure
data connection can be taken only by the calling party.
Actions Calling terminal Called terminal
(if SPENDEX 40)
LED Display LED Display
Start conditions:
- Data terminal equipment
connected and switched on
- Secure call connection
"CRYPTO " "CRYPTO "
Calling terminal:
1. Press DTE key.
X
"SYNCAQ "
"SYNC ? "
"CRYPTO "
(See Not*
(Keep hai
"SYNCAQ "
"SYNC ? "
"CRYPTO "
(S€
X
s 1 an(
idset c
.e Note
"RESYNC "
"* «
"SYNC
"CRYPTO "
1 Note 2)
)ff hook)
"RESYNC "
"* "
"SYNC
"CRYPTO "
- 2)
Secure data transmission
possible (see Note 3)
In case a secure call is
wanted again, then proceed
as follows:
Calling terminal:
1. Press DTE key.
- EKD or EMG
Note 1: If the terminal at the other end is a STU-II terminal, which
is set only for secure speech, then the data synchronisation
protocols will not be started; the operating mode remains
secure speech.
Note 2: If the attempt to achieve synchronisation fails, both
termin als rever t automat ic ally to cle ar traffic ( bo th
d i s p l a y s e x h i b i t " P L A I N " ) .
Note 3: A rapid intermittent signal during data transmission
indicates pre-emption; finish data transmission immediately
and go on hook.
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5.7 Requesting a Call Variable from the KDC
This section describes the actions to be performed in order to
request a call variable from the KDC. Requesting a call variable from
the KDC is possible only if the KDC unique variable is loaded.
Actions LED Display Remarks
Start conditions:
- Terminal on hook »* »•
- CIK module connected
1. Press KDC key. "ID XXXXX"
2. Dial in ID number of "ID DDDDD"
called party. "PRESENT " Call variable
already present.
"NO KEY " No call
variable.
"ERR KEY " Call variable
not valid.
3. Go off hook (see X"
Note 1).
4. Dial in the KDC " 5260111"
telephone number
5260111.
5. Wait. "WAIT The KDC
protocols are
started. See
Note 2.
"XX SAVE?" Call variable
received. See
Note 3.
Now there are two
possibilities:
- To store the call
variable temporarily:
6. Go on hook. »«* » See Note 4.
- To store the call
variable permanently:
6. Dial in compartment "AB SAVE?"
number (40...59). "AB FILLD" Compartment
already filled.
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Requesting a key variable from the KDC (continued)
Actions LED Display Remarks
"AB FREE " Compartment
7. Press KDC key (see "AB DDDDD" empty.
The call
Note 5). variable is
being stored.
See Note 6.
AB — compartment number (AB ■
DDDDD - ID number (D = 0...9)
■40...59)
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Note 1: If going off hook took place at the moment when 5 digits had
not yet been dialled in, "ON HOOK " appears in the display.
This indicates that it is necessary to go on hook again,
whereafter the procedure can be started again.
Note 2: If an error occurs during the KDC protocols, then the
terminal automatically returns to the start condition. In the
d i s p l a y a p p e a r s " * " .
Note 3: If a call variable belonging to the selected ID number is
already present, then "AB SAVE?" appears in the display. This
indicates that the received call variable has to be stored in
compartment AB. To prevent that a second call variable is
being stored under the same ID number, selection of another
compartment is not possible.
Note 4: The call variable is saved until the terminal is switched off
or until another call variable is stored temporarily.
Note 5: When the KDC key is pressed without selecting a compartment,
then the call variable will be stored in the first available
compartment. If all compartments are already filled, then
"NO STORE" appears in the display.
Note 6: If the compartment was already filled, the contents will be
overwritten.
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NATO RESTRICTED