https://declassified.library.utoronto.ca/files/original/b6dc34c4ea71872306c15352f4315d84.pdf b6bd392227a9e36d6a0acf8db9e9f07d PDF Text Text Document disclosed under the Access to Information Act ent divulgue en vertu de la Loi sur I'acces a /'information SECRET HQ T S 1 2 6 0 - £ - 0 - l ( D C E ) §• HYDRA CONTROL POSITION DESIGN AND OPERATING CONCEPTS U GENERAL 1.1, This paper has been produced on behalf of D Comm Eng by CFCS TS3-3-t2, 1.2, Drawing 10001 (one sheet) dated 14 June 65 and entitled PROPOSED OVERALL CIRCUIT SYSTEM is associated with this paper. 2. CIRCUITS 2*1.1 HYDRA circuits fall into three categories, these are: 2.1.1. ON-STRAD circuits i % e. those circuits which operate to message transfer concepts (of an automatic and not a manual nature). Here, a subscriber (one of several to the system) is considered as being permanently connected into the STRAD and has thus continually available for his use the storage capacity and functional logic of the STRAD, 2.1.2. OFF-STRAD(A) circuits i.e. those circuits which operate to circuit switching concepts. HereK a subscriber (one of several to the system) is considered as being permanently connected to a teleprinter exchange available to which are certain radio and cable trunk facilities. 2.1.3. OFF-STRAD(B) circuits i.e., those circuits which directly terminate on telegraph machines. These circuits cover point-to-point (or omnibus) engineering order-wire circuits, and circuits where HYDRA CONTROL is itself considered to be a subscriber to another but . external teleprinter exchange system (TELEX), 3. ' SPECIAL CONSIDERATIONS 3*1, Having been a s s i g n e d t o an ON-STRAD p o s i t i o n , no s u b s c r i b e r should "'• ^ have t h e a u t h o r i t y t o a r b i t r a r i l y order a r e v e r s i o n t o an OFFSTRAD c o n d i t i o n and t h u s be patched on demand t o a n o t h e r s u b s c r i b e r , 3.2. S i m i l a r l y , , having been assigned t o an OFF-STRAD p o s i t i o n s u b s c r i b e r s should be denied a u t h o r i t y t o a r b i t r a r i l y order a r e v e r s i o n t o an "ON-STRAD c o n d i t i o n i n order t o f a c i l i t a t e t h e d i s p o s a l of t r a f f i c i n t o t h e STRAD system,. 3.3. However, changes from an 0N_STRAD t o an OFF-STRAD s t a t u s (and v i c e v e r s a ) should b e p e r m i s s i b l e by r e g u l a t i o n t o a f i x e d time s c h e d u l e , provided t h a t d u r i n g p e r i o d s of emergency such d e c i s i o n s a s . a r e made by an a u t h o r i t y s o d e s i g n a t e d a r e c o n s i d e r e d a s o v e r - r i d i n g , 4. CIRCUIT ARRANGEMENTS AND INTERFACE PROBLEMS 4,1, HDX c i r c u i t s w i l l not t e r m i n a t e on STRAD 4*2, ..• „ ON STRAD r a d i o c i r c u i t s w i l l be ARQ EDC equipped - TOR-?-for UK and TOR-5 for ALERT. _4j3» Four T0R-7 c h a n n e l s a r e a v a i l a b l e , , b u t only t h r e e STRAD p o s i t i o n s • '-"~'~-~§si(5'-programmed f o r UK ( r a d i o ) , c o n s e q u e n t l y , , one TOR-f channel i n �Document disclosed under the Access to Information Act Document divulgue en vertu de la Loi sur faeces a {'information T SECR'iT - 2 - ^3 one DIPLEX MUX arrangement w i l l "idle"*,. 4.4, A l l c i r c u i t s , ON STRAD or OFF STRAD, l i n e or r a d i o (send o n l y ) , r o u t e d v i a t h e CARP COMMERCIAL REPEATER STATION a s DC c i r c u i t s or v i a DND VFT on «N< c a r r i e r t o RENFREW, SMITHS* FALLS and OSHAWA w i l l p a s s through TOLL TEST f a c i l i t i e s , 4.5, I n a d d i t i o n , a l l c i r c u i t s a s above, p l u s t h e r a d i o r e c e i v e c i r c u i t s i n t h e DC mode, w i l l pass through TELEGRAPH (BLACK) BOARD f a c i l i t i e s , 4.6, Elements of t h e TELEX c i r c u i t a r e not known a t t h i s t i m e . 4.7, Equipment b e i n g s u p p l i e d a g a i n s t CD430052 p r o v i d e s t h e following facilities; 4.7.1, Nine VFT 4-wire send and r e c e i v e c h a n n e l s t o RENFREW ( v i a DND <Nf c a r r i e r ) t o form FDX or HDX c i r c u i t s as r e q u i r e d , and t o i n t e r connect t h e r e with commercial e n e r g i s e d t e l e g r a p h f a c i l i t i e s . 4.7.2, Nine,VFT 4-wire send and r e c e i v e channels t o SMITHS' FALLS-(via DND 'N' c a r r i e r ) t o form FDX or HDX c i r c u i t s a s r e q u i r e d , and t o i n t e r c o n n e c t t h e r e with commercial e n e r g i s e d t e l e g r a p h f a c i l i t i e s 4 " 4.7.3, E i g h t VFT 2-wire send only channels t o t h e OSHAWA r a d i o t r a n s m i t t e r s t a t i o n s i m u l t a n e o u s l y ( v i a DND 'N' c a r r i e r s ) . t o RENFREW and t o SMITHS' FALLS where they w i l l i n t e r c o n n e c t with commercial 2-wire send only f a c i l i t i e s . At OSHAWA, t o n e s from e i t h e r r o u t e a r e s e l e c t e d , a r e demodulated, and a r e t h e n used t o key FSK (DFS or SFS) r a d i o t r a n s m i t t i n g equipments. 4.7.4, S i x t e e n send and s i x t e e n r e c e i v e l i n e r e l a y p o s i t i o n s which, ( (when equipped) form up t o s i x t e e n f u l l - d u p l e x c i r c u i t s (on a DC b a s i s ) i n t o t h e CARP REPEATER.. 4.8, ' 'Expansion c a p a c i t y of CARP REPEATER f a c i l i t i e s i s not known a t this time. 4.9, ' Where HDX c i r c u i t s e n t e r EASii from t h e CARP REPEATER t h e y w i l l e n t e r e n e r g i s e d and on a 2-wire b a s i s . 4.10, Where HDX c i r c u i t s e n t e r EASE v i a VFT systems t h e y w i l l , a f t e r t o n e demodulation, be extended on a 4-wire r a t h e r t h a n on a 2-wire b a s i s , 4.11, D e c i s i o n s a r e r e q u i r e d which w i l l l a y down which c i r c u i t s w i l l esc i t v i a RENFREW, v i a . SMITHS' FALLS..and v i a t h e CARP REPEATER... 5. TELEPRINTER EXCHANGE - GENERAL 5,1, I t i s c o n s i d e r e d n e c e s s a r y t h a t OFF-STRAD o p e r a t i o n s be c o n c e n t r a t e d on a s p e c i a l l y designed manually operated- t e l e p r i n t e r exchange, 5.2V * The TELEPRINTER EXCHANGE and t h e TELEX p o s i t i o n should be so grouped t h a t b o t h can be c o n t r o l l e d by one o p e r a t o r - furthermore i t i s suggested t h a t both f u n c t i o n s be performed by t h e one i n d i v i d u a l , , . 5»3* N -^ne elements of t h e t e l e p r i n t e r exchange have been roughly d r a f t e d and a CFCS l a b o r a t o r y p r o j e c t i s being r a i s e d t o permit c e r t a i n l o g i c and f u n c t i o n s t o be s u b j e c t e d t o a f e a s i b i l i t y s t u d y . . • ' 5.4. I n a d d i t i o n " N - d i c a t o r s " (from Camp Bordon) and t e l e g r a p h p u l s e waveform r e s t o r e r s ( o r i g i n a l l y provided for O p e r a t i o n RUSTIC) w i l l be s u b j e c t e d t o CFCS l a b o r a t o r y • e v a l u a t i o n t o determine t h e i r . u s e f u l n e s s i n t h e system, .. • 73 IB) mEI 000137 �Document disclosed under the Access to Information Act jocument divulgue en vertu de la Loi sur faeces a {'information SiiCPuiT HET 3 - <0 5.5. It is proposed that the -teleprinter exchange dorisole be fabricated in.its entirety at CFCS using ihe capacity of the CFCS laboratory and staffi 5i6i Paragraphs 5.3., 5.4., and 5.5., indicate that a CFCS lab project may minimise development and production costs of a "one off only" custom built .item. 6, . TELEPRINTER EXCHANGE - FACILITIES 6.1, The functional elements of the teleprinter exchange have been based on similar design concepts to those of manual telephone exchangest these elements.are listed and their functions are described as follows: 6.2. INTERFACE POSITION 6.2.1. There w i l l be one INTERFACE POSITION per s u b s c r i b e r t o t h e system. 6.2.2, Each p o s i t i o n .will be f i t t e d w i t h one of two t y p e s of p l u g - i n modules. 6.2.3* Where t h e connected c i r c u i t i s of a 4-wire DC HDX or FDX n a t u r e , t h e p o s i t i o n would be equipped w i t h a "4-WIRE TO 4-WIRE DC LINKING UNIT". 6 . 2 . 4 . ..Where t h e connected c i r c u i t i s of a 2-wire DC SX IN or SX OUT n a t u r e , t h e p o s i t i o n would be s i m i l a r l y e q u i p p e d , 6.2,/p. Where t h e connected c i r c u i t i s of a 2-wire DC HDX: n a t u r e , t h e p o s i t i o n would be equipped w i t h a "2JWIRE TO 4-WIRE DC LINE REPEATER UNIT" ( a s i l l u s t r a t e d ) . 6.2.6. The "2-wire t o 4.-wire DC l i n e r e p e a t e r u n i t " i s based on t h e PKILCO LEG COMBINING SET. ' 6.3 SUBSCRIBERS' LINE CIRCUIT 6.3•!• There w i l l , b e one s u b s c r i b e r s l i n e c i r c u i t p e r s u b s c r i b e r t o t h e t e l e p r i n t e r exchange system. 6,3,2, Each subs l i n e c i r c u i t c o n t a i n s ( a ) a CALL-INDICATOR ( s e l f r e s t o r i n g drop f l a p or e y e b a l l . t y p e ) , (b) a CLEAR-DOWN lamp ( o p e r a t e d by a REPETITIVE.. CHARACTER INDICATOR), ( c ) a LINE OPEN-TROUBLE lamp ( d ) a CALL AND ANSWER KEY and (e.) SEND;.and RECEIVE j a c k s . 6.4. SUBSCRIBERS. CORD CIRCUIT .. 6.4.1. There would b e r e q u i r e d one subs cord c i r c u i t per two s u b s c r i b e r s t o t h e system,. 6.4.2. Each subs cord c i r c u i t c o n t a i n s (a) two c o r d s , each equipped w i t h a double plug., coded by means of a s e r r a t e d edge i n order t o d i f f e r e n t i a t e between send and r e c e i v e p l u g s , (b) a MONITOR key ( t h i s p e r m i t s t h e monitoring of a p a i r of patched s u b s c r i b e r s provided t h a t a t any one t i m e , only one of them i s s e n d i n g . I n a d d i t i o n , t h e key a l s o p e r m i t s o p e r a t o r s ' , i n s t r u c t i o n s or comments t o be t r a n s m i t t e d s i m u l t a n e o u s l y t o both s u b s c r i b e r s ) , (c) a RiiGEN RP1R IN key. ( t h i s p e r m i t s t h e i n s e r t i o n of -two r e g e n e r a t i v e r e p e a t e r s i n t o a p a t c h , one r e p e a t e r i n each l e g . This may be n e c e s s a r y where s u b s c r i b e r s so patched a r e o p e r a t i n g one m a r g i n a l circuits.) /* �Document disclosed under the Access to Information Act " p j /Document divulgue en vertu de la Loi sur faeces a {'information SECRET <-3 6.5, E 0 - 4 - . OPERATORS' CONTROL LOGIC 6,5,lf This unit i s equivalent t o the "operatorscord c i r c u i t " in a manual telephone exchange. 6.5.2, I t acts as i n t e r f a c e logic between a subscriber or subscribers and the operator* 1 t e l e p r i n t e r . 6.5.3, I t s output t o the ops t e l e p r i n t e r receiver i s in the d . c . polar mode from a 60 + 60 supply.- The t e l e p r i n t e r sender i s however operated in the d . o . n e u t r a l mode. 6.6, OPERATOR'S TELEPRINTER 6.6.1. This is the equivalent of the operators handset in a manual telephone exchange system. 6.6.2. It is suggested that a CREED MODEL 75 teleprinter be assigned to \ • this role. 6.6.3. The teleprinter, connected in a "switched simplex" mode with local V-, . record should be fitted with a 60/75/IOO wpm gear-shift. 6«6,4. A second CREED MODEL 75 teleprinter, connected to a subs' line circuit on the exchange should also be made available for the operators' use, 6.7, TELEPRINTER CONFERENCE FACILITIES 6,7»1, These facilities permit a maximum of four subscribers to be interconnected for conference purposes, 6.7.2. A Key function allows the operator to monitor and to "talk" into any conference patch set-up.' 6.7.3. A further key function permits the insertion of a regenerative repeater into the conference patch should the need for its use so arise. 6.7.4. As far as is known , teleprinter conference facilities are not available in the present HiDRA scheme. Their inclusion on the teleprinter exchange is felt to be a necessary feature, if not for HYDRA, then for DND use should such facilities be called for by the Staff. 6.7.5. For background information of teleprinter conference operations between MOD and the Colonial Office in London to Singapore and to North Borneo, refer to COMCAIvE REPORT 1963 (RED BOOK) CONCLUSION m m <=rp SECRET 000139 �Document disclosed under the Access to Information Act -inimpnt divulgue en vertu de \ajj2i syrfaecesj> /'information MPT COMCAVM 4- IH*-0-X-Q2--T N°t VFT\ I-Q-ZT 0-1 see MOt> Tpi% rO Q-^O .(car-^cAisi) RICHARDSON VFT sec Pcrc VFT COIV\CRM:4.. p-RQtW UK "ro^i pC^NMea SOT X-*—6 I 1 I VFT I • ~ 0 - - O - r O 'MoJ> ^rG -CH^K r- - *o t C£>sP>/=s'c\TXl_ ToR 7 *-o "x-*-Q T O R I PUPst^H5S> vpr I B U T ; S T I v-v_ O U T TO Tew»Q£-ct~ VPT '£>/.£ 6-*~ r o / 5 - 7 ^ 2-ra/v/g VA^T STRP,I. 3 -j HXToRfc > )f 6 -r(W ^FTPS 0 - * - 0 s>e-Mo» -*-Q 0-3- V(=r oEMos. . ST/R.to> S *-6 0->" • ©-* MFT Q-*- TSP5 B£Mo2 VFT vrr :W-*T>RA To UK OErvloi -H-O bisivioj O OSHAWA - tLfrt :A\TAVL:ABY.€-- "WTTDRA .1 PoV^^ATCY^ • t --i. JT"6"«>lS»A 6l$ "TZ -+• ee,t4Rc_ ; ST^^tJ.4 F R O M Ufe VFT 1 o- 0 ^ABuer.TQ (HX'bR-Ps) I VFT o- tf rSMR.c| c - r o e.-^ ~» I I V EM T-QQR.- I C.TC I * / U K \Jvft-COTC -=^:— T^St4Fft£W .OR. ?*-**! VFT frEMC9>| VVT S^w*®- I P R O P b S G O 5"TH CAaCt TQ.UXCM>PI I-T&) 000140 � Dublin Core The Dublin Core metadata element set is common to all Omeka records, including items, files, and collections. For more information see, http://dublincore.org/documents/dces/. Title A name given to the resource Hydra Dublin Core The Dublin Core metadata element set is common to all Omeka records, including items, files, and collections. For more information see, http://dublincore.org/documents/dces/. Identifier An unambiguous reference to the resource within a given context HY00260 Title A name given to the resource Hydra Control Position Design and Operating Concepts Date A point or period of time associated with an event in the lifecycle of the resource undated Source A related resource from which the described resource is derived Fixed Communications - Hydra Telegraph Relay System - Relocation of Hydra - Plans and Policy, RG24, S-2723-2, Vol. 1, Library and Archives Canada (LAC) Creator An entity primarily responsible for making the resource Department of National Defence Rights Information about rights held in and over the resource Canadian Crown Subject The topic of the resource Emergency planning, EASE, STRAD, radio communications, landlines, teletype lines, telegraph circuits Description An account of the resource Paper produced on behalf of D Comm Eng detailing the design and operation of proposed Hydra circuits at Carp. Outlines how on-STRAD, off-STRAD circuits operate. Specifies that radio circuits be EDC-equipped. Details radio and VFT facilities between Oshawa, Smiths Falls, Renfrew. Details teleprinter exchange console, to be fabricated. Teleprinter exchange to additionally feature conference facilities to connect up to four subscribers for conferencing - not presently available in current Hydra scheme. Publisher An entity responsible for making the resource available Canada Declassified Type The nature or genre of the resource Text Format The file format, physical medium, or dimensions of the resource PDF Language A language of the resource en