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REF ID:A522855 

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'FOP SECRET V.·> ''. (" 

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LCs(53)/0RfR(6) (Final) 

9th November, 1953. 

COPY NO: 10 

UKJUS COhIT1IUNIC.AT IONS SECURITY CONFERENCE 1 95 ,3 

to the 

EXECUTIV:& COMMITT.iQ; 

On-Line Teletypewriter Security ~guipments:· 

Speech Security bguipments 

1. The Operational Requirements Sub-Committee h.ss considered Combined and 

NATO requirements for on-line teletypewriter security equipments and speech 

security equipments and endorses the genernl statements made at the 1952 

Conference. The Sub-Committee calls the attention of .the Executive Committee 

to the faot that lone. range planning for meeting the overall on-line nnd 

speech requirements is contingent upon the provision of a definitive statement 

of the requirements. Thus the Operational Requirements Sub-Com.~ittee endorses 

:the recommendation of the l$ngineering Committee that a requirements directory be 

prepared. In addition, the Sub-Committee recorn'T!end: 

a. That long-term plans should aim .st the maximum degree of 

stanrlardis ntion of equipment thereby reducing the mdntenance lo[i..d 

and lack of flexibility of .comnunications inevitable in the use of a 

nru.ltipl1city of equipments but necessitated by the present shortages 

of those equipments. 

b. That when plans are tna(1e to transfer equipments designe<1 by one nation 

to operational staffs of other nations due account should be taken of 

the need for providing: 

(1) adequate supplies of spnre parts; 

(2) training facilities for both the operating and maintenance 

personnel of the receiving nations; 

(3) where possible, the use of repair facilities on a reciprocal bnsis. 

o. That the design of on-line equipment should be such that it is 

impcssible to transmit plain text ino..uv·ertently in pla.ce of cypher text. 

2. On-Line Teletypewriter Security Equipments. 

a. Heguirements and J.vailable Equipments. 

( 1) l<'irst Level nnd Second Level. 

(a.) There are Combined and N,,TO requirements for on-line 

teletypewriter security equipments at both First an~ ~ec0nd Levels. 

It is desirable but not necessary that these require:nents eventunlly 

be met by the adoption nf stanrfar~1ised ::ir interworkint; ~quipments. 

Si~CEUR anrr SACLANT have defined their requirements for on-line 

teletypewriter equipments, In addition, there are nav3l 

requirements for point-to-point and RATT broadcast equipments,; 

although the adoption of on-lino cyphering for the latter purpose 

is unlikely to be implemented for some consid0rable time. 

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REF ID:A522855 

(b) At the present time, Apparatus 5 UCO* is available in 

limited quantities for synchronous·use. For ncn-synchronous 

use, limited quantities of SIGTOT (in twc versions) are available 

and SACEUR has also contracted"with a Norwegian firm for the 

manufacture cf still another version (ETCRRM). 

* It shouln be noted that the production contract for 

Apparatus 5 UCO is running out ,and ccu~d be extended only if 

additional orders are placed in the near future,. 

(2) Third Level, 

No Combined and NJ.TO requirement for an on-line teletypewriter 

security system for use at the third level can, at present, be 

defined, It is possible that a requirement Will be established when 

Combined and NATO requirements are examined in detail by the group 

charged with compiling a directory of oper~tion.al. requirements. 

b, ~guipments Plannedt 

The foll~wing on-line teletypewriter security equipments are now in 

c.ourse of development but are su)i.jeet to final .. st;icu;dty clearance and may 

eventually be available to meet Combined and N~'.TO operatfonal requirements, 

(1) Non UK/US ~guipments, 

(a) The Dutch "ECOLEX" one-time tape equipment has been prop:Jsed. 

It is in limited use by the Dutrh now, Capacity for production 

is about ten per month. 

(b) The :trench have proposed an equipment, the T53, which does not 

employ key tape, It is in test use (pre-production models). 

Exaet status and produ~tion eapacity not known. 

(2) UK/US .:;guipments. 

(a) Synchronous. 

(i) 

(ii) 

(iii) 

(iv) 

.AFSiiM D.26 (us) 

ii.FSLM D.22 (u.s.) 

.:J\TICHOYJ:; (U. K. ) 

(b) Non-Syn~hronous. 

(i) 

(ii) 

(iii) 

M'S.AM 9 (U.S.) 

METROPOLE (U. K. ) 

lNCUBi~OR (tr. K. ) 

8ervice·test model due 1954. 

1''irst engineerine model under 

constructicn. 

Development model due late 1953. 

Engineering mvctel.on trial. 

Production due to start Sept. 1954. 

Under development. 

Breadboard stabe only. 

(iv) CONVERTOR N:i. 5 (U.K.),Development morlel due late 1953. 

(Synchronous when used. with 5 UCO) 

(c) lt'af"simile and Speech Equipments capable of providim~ 

.teletYpewriter security. 

(i) 1.FSAT 700 used (u.s.) 

with ANF/FGC-14 

or .ANF/FGC-5. 

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(ii) AFSAY 806 (u.s.) 

(iii) MOUNTEBANK (U.K.) 

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Service trials soheduled early 1954. 

Development models under test. 

3 •. Speech Security Equipments. 

a. Requirements. 

(1) Strategic Reguirements. 

The Sub-CornmiLtee agreed that there is no general Combined and 

NLTO requirement for speech security equirinents for strategic use. 

Such needs as might arise should be met by the exchange or reciprocal 

use of national equipments as they become available S.:.~hough there is 

currently no general requirement for equipments of one nation to 

interwork with equipments of another nation, such interworking if 

it could be provided would be desirabl~, 

(2) Tactical Requirements. 

The Sub-Committee a.greed that there ·was. a general Combined and 

NATO tactical requirement for a c'-ommon speech security device 

capable of operation over a circuit. of normal speech bandwidth 

(nominal 300 to 3200 cycles per second), In addition, there are 

Combined and NJ.TO Naval and .l\.ir requirements f<Jr a common speech 

security device oapabie of operation over VHF circuits. Since there 

is no prospect of providing a narrow band speech security device of 

size and weight suitable for use in a tactical role, part of the 

Combined and NJ.TO .Army and Air requirement for en equipment to 

operate over a circuit of normal speech bandwidth mo.y have to be 

met by utilising equipments requiring the use of' a wide band 

transmission system for a single speech •harmel. 

b. Ecuioment l~vailabilitL_ 

No speech security equipments suitable for Ccmbined and NATO use 

a.re at present available. · The following equipments are under 

development and, subject to final security approval, may eventually be 

available to meet Combined and NHrO requirements. 

(1) 

(2) 

Strategic 't:lse. (Wire or BF radio) 

(a) SORCERER 

(b) 1.:F'SfcY D.806 

(c) f.,FSJ.:X D. 809 

Tactical Use! 

(u.x.) 

(u. s.) 

(u.s.) 

(a.) TRUMPETER (U.K.) 

(b) HlJ.J.NlliR.K II (U. K.) 

(c) I·ICKWICK (U.K.) 

Develcrment not compleLe, 

Service trials due 1<1eb. 1954. 

Hesearch stage only, 

Research stage only. 

Engineering models ccmpleLe. 

Development mo~els on trial. 

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(a.) f~'SJiY D. 804 (u.~.) Engineering mo~els mid 1954. 

(e) AFSAY D. 808 {U. s.) Service test models due end 1954. 

(f) AFS.AY D.810 (U. s-.) kesearch stage only. 

(g) LFSJJ D.801 (U.S.) Early development. 

(3)· Special Purpose Microwave Radio Helay. 

(a) D.70 (BLUE BOY) (U.K.) 

(b) Af!'SliY 816 (U.S.) 

(c) .Af!SI:iY D.807 (U~s.) 

Two engineering models nearly comple~e. 

In use. 

Service test models due 1955. 

---1-f-LQnPL-aSl!;E~GnR~El':--r. - m srsR&KctnROL NUMBEllff•t?-.Z.1!; 

':QPY - ~- ,Of ~coPitS 1

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REF ID:A522855 

j 

I.CS(53)/0R/R(6) (Final Draft) 

9th November, 1953. 

Copy No. f 

UK/US COMMUNICATIONS S-f!:CURITY CONFERENCE 195.3 

REPORT OF THE OPERATIONJi.L REQUIREMENTS SUB-COMMITTEE 

to the 

EXECUTIVE COMMITTEE 

On-Line Teletypewriter Security. ·Equipmrmts:) 

Speech Security Equipments 

O(V 

1. The Operdtional Requirements Sub-Committee has considered Combined and NATO 

requirements for on-line teletypewriter security equipments and speeoh security 

equipments and endorses the general statements made at the 1952 Conf'erence. 

The Sub-Committee calls the attention of the Executive Committee to the fact 

that long range planning for meeting the overall on-line and speech requirements 

is contingent upon the provision of a definitive 

Thus t~nts Sub-Committee endorses the 

I'-

statement of the requirements. 

recommendation of the 

Engineering Committee that a requirements directory be prepared. In addition, 

the Sub-Committee recommend 

a. Th.at long-term plans should aim at the maximum degree of standardisation of equipment thereby reducing the maintenance load and lack of 

flexibility of communica.tiqns inevitable in the use of a multiplicity 

of equipments but necessitated by the present shortages of those 

' equipments. 

b. That when l_)ln.ns arc 1113.:le to transfer equipments designed by one nation 

to operational staffs of other nations due account should be taken of 

the need for providing: 

( 1) adequate supplies of s~x::>.re 1:i.o-rts; 

(2) training facilities for both the operating and maintenance 

(3) 

personnel e;f the receiving nations; 

~ 

where ~)ossible, .a- reei:JFOE3Q:l iixehalY!§~ Qf rel:Jair facilities~ 

°'~~·, ' 0- - - · I c. 

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REF;:.ID .. :J~52~2J~~5 . 

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c. That the design of on-line equipment should be such that it is 

impossible to transmit plain text inadvertently in place of cypher 

text. 

2. On-Line Teletypewriter Security Equipments 

a. Requirements and .b,.vailable Equipments 

(1) First Level and Second Level 

There are Combined and NATO requirements for on-line teletypewriter security equipments at both First and Second Levels. 

It is desirable but not necessary that these requirements 

eventually be met by the adoption of standardised or interworking 

equipments. 

In the case of a variety of one-time tape systems interw::irkability but not stan:3.ardisation is now 1.vailable. S.h.GBUR 

and SACUi..NJ' r~ve defined their requirements for on-line teletypewriter equipments. So far, a limited. quantity of SIGTOT (in 

two versions) and Apparatus 5 UCO~ have been made available. 

8.la.CEUR has also contracted with a Norwegian finn for the 

m~nufacture of still another version (ETCRRl{) of SIGTOT. 

· lf ·it sh·)uld "be· noted that the- production c.ontract 

for Apparatus 5 UCO is running out. 

( 2) Third Level 

No Combined and NATO requirement for an on-line tolety-~~-

writer security system for use at the third level can, at 

present, be defined. It is p0ssible that a requirement will be 

e~tablished when Combined and N~TO requirements arc examined in 

detail by ~he group charged with compiling a directory of 

oper~tional requirements, 

b. Equipments Planned 

The following on-line teletype~Titer security equipments are now 

in C.'.mrse of development but are subject t'o final security clGarance, 

and may cve:IaJ'lte Si.(JllJet Combined and NATO operational 

requirE?ments. 

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REF ID:A522855 • ·~ .t, •• . .1,.-........ :J,,.h, 

'FOP SEORE'F 

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( 1) Non UK/US Equipments 

(a) The Dutch "ECOLEX" has been proposed. Its on-line version 

using one-time tape is in limited use by the Dutch now. 

Capacity for production is about ten per m'?nth. 

(b) Th0 French have proposed a non-tape system, the T53. It 

is in test use (~re-production models), Exact status and 

production capacity not knovm, 

(2) UK/US Equipments 

(a) Synchronous 

(b) 

' 

(i) .h.FSAZ D. 7 315 . Service test model due 1954. 

(ii) .AFSAM D. 26, First engineering model under · construction. 

(iii) AFSJUvf D. 22 Development model due late 1953. 

(iv) ARTICHOKE Engineering model on trial. 

Non-S~chronous 

(i) 

(ii) 

(iii) 

(iv) 

AFSAM 9 Production due to start Sept. 1954. 

IVlETROPOLE Under development. 

INCUBATOR Brc:adboard stage only. 

CONVERTOR.No.~evclopment model due late 1953. 

~ ~ynchrorrJus·A wi t:n 5 uco) 

(c) Facsimile and Speech Equipments capable of providing 

teletypewriter security 

(i) 

(ii) 

AFSAJ 700 used 

with Ji.NF/FGC-14 

or .ANF/FGC-5. 

MOUNTEBANK 

(iii) AFSAY 806 

. . 

Service tests in near future. 

Pr-:idi.ictie>n contract calls for delivery 

of 102 equir)ments for U.S. use by end 

of 1954 at rate of 8 per month. 

Development models under test, 

Service trials scheduled early 1954. 

3, · SJ?eech Security Equipments 

a. Requirements 

( 1) Strategic Requirements ~ ~ '\to ~ ~ ~~ 

The Sub-Committee agreed that ~ requirementJ for spe~ch 

security equipments for str~tegic use.as ~\1.~ ha~o 

\JJlJ4 

B~~ 

CilJ ~ ~ 

should 

be met tOP°SECRE"t±l equipments as they become 

/available. 
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REF ID:A522855 

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available. There is no requirement for equipments of one nation 

to interwork with equipments .of another nation. 

(2) Tactical Requirements 

The Sub-Committee agreed that ther~ i1? a general Combined 

;a,- ··\U?~~ and NATO tactical requirement for a~ s.pee.ch security device 

capable of operation over a circuit of normal speech bandwidth 

(nominal 300 to 3200 cycles per second). · In addition, 

~ 

there are 

Combined and NATO Naval and ~ur r~quirements for al\.speech security 

device capable of operation ovGr~ dircuits. Since there is no 

prospect 'Jf providing a narrow .band speech security device of size 

and weight suitable for use iri a 't~cti~l· r~le, part of the 

Combined and NATO Army and.Air reqJ.ireinent for an equipment to 

operate over a circuit of normal.speech bandwidth may have to be 

met by utilising equipments requiring the use of a wide band 

transmission system for a. single speech channel. 

b. Equipment Availability 

No speech security equipments suitable for Combined and NATO use 

are at pres~nt available. The following equipments are under 

development and, subject to final security approval, may eventually be 

available to meet Combined and N~TO requirements. 

( 1 ) ' Strategic Use. 

(a) SORCERER 

( b) AFSAY D. 806 

( c) AFSAY D. 809 

(2) Tactical Use 

(a) TRUMPETER 

( b ) :S..·:..LLMJi.R.K I I 

( c) PICKWICK 

(Wire or HF radio) 

Development not complete. 

Service trials due Feq. 1954. 

Research stage only. 

. Research stage only. 

'Engineering m:JC'cels complete. 

Devel::J~)ment models on trial. 

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REF ID:A522855 

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( d) AFSAY D. 804- Engineering mod.els mid 1954-. 

(e) AFSAY D.808 S~rvice t~st models due end 1954-. 

(f) AFSA.Y D. 81 0 Research stage only. 

(g) ii.FSAY D.801 Early development. 

(3) Special Purpose lftlcrowave Radio Relay 

(a) D. 70 (BLUE BOY) 

( b) AFS.il.Y 81 6 

( c) ~l.]'Sii.Y D. 80 7 

I 

Two engineering models nearly complete. 

In use. 

Service test m0dels due 1955.· 

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