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E. l. ILLUSTRATED PRESENTATION OF THE EQUIPMENT
-- i1.1. SHORT DESCRIPTION
_i The CRYPTOMATIC HC_57O is afully electronic Off-line ci_ Even subsequent insertions are possible. Of prime impor-
--'" phering terminal for high—level security with outstanding tance, however, are the correction facilities provided
is convenience, high reliability and processing speed. Its to eliminate COmmuiCatiO BIIOYS (¢iPh@rin9 formatting
concept is asynthesis of state of the art components, errors) in Che COUISQ of deCiPhsring OP9ratiOn-
-—-'-
5_:: such as microprocessors and LSI—components (Large Scale
Integration). The program flow ensues, controlled by aTh6 t6Xt is Printed by B10W-OiSe hiqh—Speed thermo
-_> microprocessor, to aconsiderable extent, fully automatic, page Printer with 5Ut0matiC formatting of the plain
“'f:! whereby hitherto possible operating errors are for the teXt Or cryptoqram. Simultaneously the text may be
most part eliminated. punched on tape by alow—noise punch of 30 char./sec.
-‘ This way each text input is available on tape, immedia-
-—~l As one of the latest developments in the field of off—line
4- tely after processing, to be forwarded on ateletype—
ciphering equipment, it not only covers the text—ciphering
—- requirements of today but it already complies with fu-
_- ture trends of cryptographic equipment, likely to be deploy~ Particular attention devoted to BaSiC_Key
ed later in fully integrated and computer—contr0lled commu— tions Seven different BaSic_Key Combinations of 20
__‘i nication systems. Due to its operation—oriented and attrac— characters each be entered and StOred_ After Stor_
‘- tive design as adesk—top unit, the HC-570 is primarily suit— ...
age, they are available for use in form of bigrams.
able for fixed insta ations but, to alimite exten ,tven However, the to the Stored Basic Keys (mOdifi_
__! for moblle appllcatlOnS' cations or new inputs) requires the use of the special
mechanical key, which normally remains in the custody o
The ower re uirements of the eui ment ran ebetween 9Oand aSecurit OffiCer- Besides, ths COV@Iin
__¢I PQqPQY9
"' 250 VAC, which is available almost everywhere (eliminating hood (rugged hard‘Pla5tiC) iS lOCked and Can be unlOCk€5
___ mains voltage selector). The text is entered either via the 0lY with the 5PeCial k9Y Qf the Security Officer? s0
——:! alphanumerical keyboard with automatic letter/character the interior Of the squiPmsnt is also Protsstsd against
shift or via the optoelectronical tape reader (according to Unauth0IiZ9d access-
——— C. 2 .Fh..'—
‘clTT NO )ll reads up to 3) Car /sec and ll even lc Asecond mechanical key allows the operator to secure
"cepts laterally reversed paper tapes’ step_by_Step readlng the equipment against unauthorized use for crypto opera]
writer.
of the paper tape shows the incoming text on the travelling- tion The Message Key (10 letters) be entered
__‘ type display. The text input (typed in by keyboard) appears all via the al hanumeric ke bard tt. ll
__ ypy0or au oma ica yge
first on the large self—scan display with amatrix height of nerated by the internal random character generator.
6mm and astorage capacity of 32 characters. so, the text
——1: can easily be checked and, if necessary, corrected by means The different m0d9$ Of OPerati0n (Plain and CrYPtO) Can
of the appropriate function keys. be controlled by afew function keys (see special key-
___. board on page 6)
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