ilf SBOflB! 

?-.:E::ORANDU?.i TO DISTRIBUTION 

SUBJECT: Telephone Require:ients at the New AFSA Planto 

l. The purpose of this menorandum is to discuss briefly the general problem of telenhQ.D!s. comnunications for the new 

AFSA plant! and to submit for consideration a general plan which shou d meet nll AFSA requireraents. 

2. The preli:.i.inarlr plein contemplates two exchanges, a 

1000-line "black" system, an<} a 500-line "red" system. This 

wss developed from present pr!tf!tice at AHS and l':AVSECSTAc It is 

necessary to determine whether this is the best arrangenent for 

the new AFSA plante 

3. "Black" exchange~ are required by AIIS and NAVSECSTA 

because the statiot•s are in the Washington are~, they are part of the comprehensive government exchange system, and there is 

a very large volu.11e of telephonic correspondence between the 

stations and other government activities., All equipcent on t!le 

11 black" systenr:; is owned and r.:a:tntained by pr:t vate telephone ccimpaniesG The "r~d" exchanges are owned and ~aintained by the 

go•1ermnent., Thay are purely supplemental to the "black" systems o 

4. At the new site the situation will be very differento 

The new plant t1ill be loc~ted at a gr.eat distance rro11 other 

government agen~ies. Excapt for adrainistTative correspondence with 

local activities at Fort Kno:!':, jill ~J.-1.Jl ~:m liJ).2 Jl!m Jllant lQ 

outside gctivitie! n!l! !!§ l.Q.ng distance 9,1.ll~g 

7o The "redn syster.i in the new plant can be used for both ~lassified and unc:tassif'ied telephonic correspondence within the 

plant. The "black'' system can.noto It would f;herafora appear advantageous to consider 1=ro·vidine a 11 red" system lar~e enough 

to handle all INTEHUAL telephonic correspondence, classified or 

unclassified, end :;o limit the distribution of 11 blaclt" telephones to those individuals or activities who are required a~..d 

authorized to originate telephone calls to activities and agencies outside the r.ta!n plant. In this connection it is necessary to 

bear in mind that .normal classified and unclass:l.f1ed rapid communications of AFSA with outside activities, lncluding the 

residual AFSI\ t'/ashi11gton o:rga.ni2ation, will be by teletypeo 

Declassified and approved for release by NSA on 01-30-2014 pursuantto E.O. 1352a 

TOP SECRET 
SUBJECT: Telephone Roquirer1ents at the New &':'SA Plant, cont'd. 

6. Putting all AFSA nel'1 plant IrlTERNAL telephonic correspondence on the "red" system, and strictly lit1iting the distr!=-

bution or "black" telephones, would have the following considerable advantages: 

a. Telephone costs would be sharply reduced by el1m1-

na tion or most of the dual telephone sys·tem. 

b. Adequate service would be provided to the great majority or users by 1,1stallation of one telephone instead or twoo 

c. Telephonic security would be enhanced because most 

users would be using the "red" secure system only. Accidental breaches ot security due to forgetfulness 

would be decreassdo 

d., An unclassified nblack" telephone in a classified 

area is always a hazard because background conversations are picked up and transmitted without the 

telephone user being conscious or the tact. This 

hazard will be reduced in direct proportion as tha 

nll1!1ber of black telephones is reducado 

eo Strictly personal calls between persons in AFSA 

working spaces and outside telephones will be 

larzely eli::iinated. Such calls are distracting to 

other workers and are a security hazard, as explained in d. above. Requirements for personal calls 

can be met by public:boothso Furtherr.iore, the 

necessity for calline people from their work to 

answer telephone calls from outside will effectively reveal those workers who have too many outside 

interests during working hours. 

?o AFSA-13 therai'ore proposes: 

a. That the principal means for internal telephonic correspondence within the new AFSA plant be by 

means of a private "red" exchangea 

b. That the "black" or commercial telephone facilities 

installed in the new plant be sufficient only to 

provide means for comr.iunication between the AFSa 

plant and outside activitiesG 

2 

TOP SECRET 
·' &..,,,.,,_,.. ~OP __ 81!lCRR¥ ~.-

SUBJECT; Telephone Requirements at the New AF'SA Plant, cont 11 do 

c. That all requirements for telephone facilities for 

personal use be met by installation or cor:unercial 

telephone booths in suitable loc~tions throughout the plant, and the provision of ceans for notifying recipients or incoming calls. 

8. It the above proposals are accepted it will be necessary 

to detemine to what extent the switchboard arrangenent r.iust be 

revised. A study of telephone facilities now available to AFSA 

at the Vlashington stations reveE1ls that there are as r.iany as 4 

instruments per lineo This nllr.lber is entirely too large for 

efficient operation. Economy of personnel can best be achieved 

by providing sufficient lines so that all busy users nay have 

individual lines. Considering the fore~oing~ and in view or 

the scope of operations at tl.e new plant, AFS!:\-13 proposes: 

d. That the "red" telE!phona system at the new AFSA 

plant be installed initially to accom,~odate 1500 

lines, with necessary space and facility arranee~ents 

to accommodate an ultimate total of 2500 lines. 

e. That the "blacku telephone system be installed 

1n1tielly as a PBX cf 200 lines, capable of ultimate expan~ion to 300 lines. 

9. There is not within the present AF'SA organizational 

structure any provision for operation and maintenance of telephone systems, becE;use such services are provided by the stations. 

The new AFSA plant will not be under any of th~ Services, and 

telephone service like other services r.mst be provided from 

AF'SA's own resoureeso The possibility or delegating to one or 

the Services (probably the Signal Corps) responsibility for 

operation and maintenance of the telephone plant has been considered and rejected for secu~ity reasons6 It is essential that 

all personnel eneage in operation and maintenance of the telephone plant be fully cleared and under direct supervision of the 

AFSA staff. Such clearance and supervision is obviously impractic- able if an outside Service is charged with this responsibility. AFSA-13 therefore further proposes: 

r. That operation and maintenance of the telephone 

system be a responsibility of Al'~SA-13. 

10. Comnent and 

are requested. recom::ienda~ on propo~als a. 

DISTRIBUTION I 

Chiefs of Divisions 

a.nd Offices ( 3) 

AF'SA-oo, OOA, OOB9 ooc (l) 

Arthur Ender:t:tn 

Commander, USN 

Chief, AFSA-13 

TOP SECRET 

through r.