AD-A±54 175 TRANSMISSION MONITORING AND CONTROL (TRANCON) 1/'1SEGMENTATION PLAN FOR THE D..(U) DEFENSE COMMUNICATIONSENGINEERING CENTER RESTON VA W J BONIA 11 MAR 85

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4. PERFORMING ORGANIZATION REPORT NUMBER(S) 5. MONITORING ORGANIZATION REPORT NUMBER(S)

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Defense Communications r app.icabe)

Engineering Center R2006c. ADDRESS (City. State and ZIP Code) 7b. ADDRESS (City, State and ZIP Code)

1860 Wiehle AvenueReston, VA 22090-5500

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PROGRAM PROJECT TASK WORK UNITELEMENT NO. NO. NO. NO.

11. TITLE finclde Security Clasification) TRAMCON SegmentationPlan for the VCS Digital Transmission Network

12. PERSONAL AUTr.OR(S)

Walter J. Bonia13a. TYPE OF REPORT 13b. TIME COVERED 14. DATE OF REPORT (Yr.. Mo.. Day) 15. PAGE COUNT

Technical Report FROM N/A, TO 1985 March 11 3616. SUPPLEMENTARY NOTATION

17. COSATI CODES 18. SUBJECT TERMS (Continue on reuerse if neceesary and identify ' block number)

FIELD GROUP SUB. GR. backup mastership data base IRU link nodepolling segment stopgate TMT

19. ABSTRACT (Continue on rauerse if necessary and identify by blocke number) t (

-The Transmission Monitoring and Control (TRAMCON) application criteria for thei;/DCLDigital Transmission Network and the segmentation design for Europe are documented in tIhis-report. The Europe network is divided into 31 segments, each segment controlled by a master

terminal (TMT) which receives transmission equipment and station data from IntelligentRemote Units (IRUs) located at all nodes of the segment. The considerations influencing.the design are described; network geographical-link distribution, Facility Control OfficefFCO) locations, backup mastership availability, allowable number of link terminations persegment and the ability to maintain node monitoring and reporting in spite of possible linkoutages. In many cases, link outages can be circumvented by judicious placement of primaryand alternate masters. Since changes are to be expected in FCO de ignations and in segmentconfiguration, future drawing revisions are likely. .' ., , -

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20. DISTRIBUTION/AVAILABILITY OF ABSTRACT 21. ABSTRACT SECURITY CLASSIFICATION

UNCLASSIFIED/UNLIMITED X SAME AS RPT. D OTIC USERS c UNCLASSIFIED22s. NAME OF RESPONSIBLE INDIVIDUAL 22b. TELEPHONE NUMBER 22c. OFFICE SYMBOL

W. J. Bonia (7011 -'2 '364_ft64 R210

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TECHNICAL REPORT NO. 6-85

TRANSMISSION MONITORING AND CONTROL (TRAMCON) SEGMENTATION

PLAN FOR THE DCS DIGITAL TRANSMISSION NETWORK

MARCH 1985

Prepared by:Walter J. Bonia p

Technical Content Approved:Approved for Release:

AA TALBOTTCHARLES D. LEWISColonel, USAF Colonel, USAFDeputy Director for Principal Deputy Director, DCECTransmi ssi on Engineering

I

FOREWORD

The Defense Communications Engineering Center (DCEC) Technical Reports(TR's) are published to inform interested members of the defense connunityregarding technical activities of the Center, completed and in progress. Theyare intended to stimulate thinking, encourage information exchange, andprovide guidance for related planning and research. They are not an integralpart of the DoD PPBS cycle and should not be interpreted as a source ofprogram guidance. k

Comments or technical inquiries concerning this document are welcome, andshould be directed to:

DirectorDefense Communications Engineering Center1860 Wiehle AvenueReston, Virgina 22090-5500

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EXECUTIVE SUMMARY

The Transmission Monitoring and Control (TRAMCON) application criteria forthe Defense Communications System (DCS) digital transmission networks and thesegmentation design for the Digital European Backbone (DEB) are documented inthis Technical Report. For monitoring and control purposes the DEB is dividedinto thirty-one segments, each segment controlled by a primary TRAMCON MasterTerminal (TMT) and each limited to a manageable number of sites or nodes. Allnodes are equipped with Intelligent Remote Units (IRUs) for monitoringtransmission and station equipment, including those designated as primary TMTlocations. Additionally, the IRUs perform data processing and thereby areable to send concise information to the TMT when interrogated.

The TMT of each segment is backed up by an alternate counterpart inanother segment which can take over the primary duties in whole or in partwhen the primary cannot function or when a segment link is inoperable. Thus,each TNT has two active data bases and will generally fill both a primaryfunction for its own segment and a backup function for another segment.

The segmentation is designed taking into account the parameters of networkgeographical distribution, Facility Control Office (FCO) locations, backupmastership availability, allowable number of link terminations per segment andthe ability of the design to maintain node monitoring and reporting in spiteof possible link outages. Each TMT polls the IRUs in its own segment forinformation at least every 30 seconds. Polling and the ensuing IRU dataresponse are restricted to the particular segment being monitoreo. Toaccomplish this intrasegment operation, software-controlled stopgates are usedto disconnect IRU digital bridge ports for preventing link connections toanother segment. Whenever it may become necessary to reactivate the linkpath, the stopgate can be opened by TNT command. Stopgates are also used toopen closed link-node loops within segments which otherwise would result inundesired circulating TNT and IRU data signals.

Link outages can be overcome by judicious placement of primary andalternate masters; however, dead-end strings of nodes called "tails" willcause node isolation upon link failure.

The estimated uninstalled equipment cost for the TRAMCON subsystem inEurope is $9.4 million. This cost includes 31 TMTs for the 31 segments, 243IRUs monitoring 523 link terminations at 223 locations in eight countries, and63 Remote Display Terminals (RDTs). An RDT at a remote location enablesmobile maintenance teams to access information at the T14T on a dial-up basis.

Since the TRAMCON program is world-wide in nature, future revisions ofthis report will contain TRAMCON application information for the Pacific andWestern Hemisphere areas. . ,

i

, .

TABLE OF CONTENTS

Page

EXECUTIVE SUMMARY 111

I. INTRODUCTION 1

II. OBJECTIVE 2

III. BASIS FOR SEGMENTATION DESIGN 4

IV. SEGMENTATION DRAWING SYMBOLOGY 7

V. SEGMENTATION DESCRIPTION AND RATIONALE 9

1. SEGMENTATION STRUCTURE 9

2. SEGMENT TAILS 9

3. SITE SPLITTING 10

4. SECOND CHANNELS 10

5. CLOSED LOOPS 10

6. ALTERNATE TMT ROUTING 11

7. ALTERNATE TMT BACKUP 1

VI. TRAMCON DATA BASE 12

VII. UNINSTALLED EQUIPMENT COST 31

REFERENCES 33

LIST OF ACRONYMS 34

DISTRIBUTION LIST 35

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LIST OF TABLES

Table Title Page

I. TRANCON SEGMENTS IN EUROPE 13

II. COUNTRY SORT OF TRAI4CON SEGMENTS IN EUROPE 19

III. ARMY SORT OF TRANCON SEGMENTS IN EUROPE 24

IV. NAVY SORT OF TRACON SEGMENTS IN EUROPE 26

V. AIR FORCE SORT OF TRAMCON SEGMENTS IN EUROPE 27

VI. TRAM4CON PRIMARY AND BACKUP TtT LOCATIONS 30

VII. UNINSTALLED EQUIPMENT COST - 31 SEGMENTS 31

VIII. UNINSTALLED EQUIPMENT COST BY MILDEPS 31

IX. UNINSTALLED EQUIPMENT COST BY COUNTRY 32

LIST OF ILLUSTRATIONS

Figure Title Page

1. Projected TRANCON Segmentation Plan, Europe 3

2. TRAMCON - System Diagram 6

3. TRA1CON Segmentation 8

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I. INTRODUCTION

The Defense Communications System is continuing to transition from analogtransmission and switching to a digital-based technology. The currenttransitional phase, which is planned to continue through 1992, is makingavailable the operational and economic benefits of digital technology tovoice, video and data communications in the DOCS as exemplified in thedeveloping Defense Switched Network (DSN), Defense Data Network (DDN) and theOCS digital transmission network.

The same digital processing techniques now being used for transmission canalso be applied to monitor the transmission system itself. The firstoperational system for monitoring DCS digital transmission networks was theinterim Enhanced Fault Alarm System (EFAS) installed in Europe at the 13 DEB-1nodes from Coltano, Italy to Vaihingen, Germany. The EFAS consisted of acomputer at a master location which collected data by polling a certain numberof nodes within a predetermined sector called a segment. During a tr-serviceDOCA management meeting in July 1981, a decision was made to develop a TRAMCONsubsystem modeled after EFAS but with significant operational and logisticadvantages including reduced manpower requirements. TRAMCON will employ oneor more IRUs at all sites, permitting data processing and control at each ofthe nodes that was not previously available with the interim EFAS. ForTRAMCON purposes, the transmission network will be divided into groups ofnodes called segments. Control of all IRUs within a segment will be exercisedby a TMT.

The first operational installation of TRANCON will function with DEB IIIin the UK, with a scheduled IOC of April 1986. As part of the the overallplanning for TRAMCON installation, DCEC Code R210 was tasked (reference [1])by DCA Code B420 to develop segmentation plans for the DOCS digitaltransmission networks in Europe, the Pacific area, and the Western Hemisphere,both CONUS and OCONUS. The TRAMCON segmentation plan for the Europe DOCSdigital transmission network is the subject of this Technical Report. Futurerevisions to the report will contain TRAMCON application information for thePacific and Western Hemisphere areas.

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II. OBJECTIVE

The objective of this Technical Report is to document the TRAMCONSegmentation Plan for Europe, (Figure 1), Drawing No. 201032, Rev. A,28 February 1985, for use by those involved in any area of the TRAMCON programfrom its development through operation and maintenance.* The drawing conformsto the EURSEGRD option, as described by reference [2) and as selected inparagraph 2 of reference [3), with a master at Aviano. Note that the drawingis for planning purposes only, and if any conflict is discovered with otherdocuments, DCEC Code R210 and DCA Code B420 should be notified. Since changesare to be expected in FCO designations and in segment configuration, futuredrawing revisions are likely. Change inputs should be provided, in writing,with marked prints to DCEC Code R210.

The segmentation structure of the enclosed Drawing No. 201032 is intendedto develop effective transmission monitoring and control for the OCS digitalnetwork in Europe on an interrelated (primary/alternate master) segmentbasis. Each segment is limited to a manageable number of sites, or linkterminations, and is controlled by a TNT generally collocated with a FCO. Therationale supporting the segmentation is described in the following sections.A brief description of TRANCON operation is first given as an introduction tothe rationale.

* Full E-size prints or 17" x 22" reductions of Drawing No. 201032, Rev. A,are available from DCEC.

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III. BASIS FOR SEGMENTATION DESIGN

The TRAMCON segmentation drawing for Europe is based primarily on theTRAMCON Operational Concept, [4) and the connectivity drawing, [5]. Therelevant features of TRAMCON system operation and of major equipmentsimplementing the operational concept are described in the following paragraphs.

The basic unit of TRAMCON is a segment composed of a master station,generally a FCO, and a number of remote stations in a defined geographicalregion. The architecture is intended to implement the TRAMCON functions ofstation polling, alarm scanning, fault isolation, remote control, performancemonitoring, information display and distribution, intra and intersegmentmaster communications, and backup mastership for the DCS digital transmissionnetworks. (See section 2 of reference [6] for details of system parametermeasurements.) The segment is managed at the master station by a TMT whichpolls, and receives data from, an IRU. The TMT normally managing the segmentis called the primary TMT. A TNT located in another segment sharesresponsibility for the segment in a backup, alternate role. Thus, each TMTwill generally fill both a primary function for its own segment and a backupfunction for another segment. The TMT, therefore, has two active data bases -

one for its primary function and the other for backup use. Two other databases which are normally inactive are also resident in the TMT as reserves forpossible future segment reconfiguration.

IRUs are located at every site including the TMT location. They monitortransmission equipment and site support equipment alarms and statusindicators, and measure transmission system performance parameters. (Seesection 3 of reference [7)). An IRU consists of a Data Acquisition andControl Element (DACE), a Digital Bridge, and depending on the number ofman-machine interfaces required at the IRU's site, two, one or no LocalDisplay Terminals (LDTs). Site data processing is performed by the DACE and,upon request by the TMT, data are transferred from the remote IRU DACE throughthe IRU digital bridge to the 192 kb/s service channel bit stream via a LowSpeed Time Division Multiplexer (LSTDM) card, and thence to the master stationfor display and storage at the TMT. (See Figure 2.) For attended sites, theIRU contains a Local Display Terminal (LDT), used both for local station datadisplay and for operator key'board entry. The IRU will not initiateinformation flow - it answers only when polled by the TNT. Each IRU canmonitor up to four link terminations plus station equipment.

Under normal operating conditions, the TMT in its primary role willautomatically and sequentially interrogate (poll) all IRUs within its segmentat least every 30 seconds. This polling interval is determined by theprotocols, polling rate, response rate, amount of data transferred, the numberof stations, and the total number of link terminations in the segment. Thesequence of events will be that the TRAMCON master issues a poll signal toeach of its remote IRUs, in turn, and awaits the reply. As the reply isreceived, the next remote IRU is polled, and it sends a reply. Pollingcontinues in this pattern.

4

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The digital bridge portion of the DACE serves two functions. (1) as anelement of the service channel bit stream, it repeats all transn~issionsreceived as input into any of its four service channel output ports; (2) asthe service channel interface for the IRU, it acts as front end communicationprocessor for the DACE. In this second function, it (1) notifies the DACEcentral processor of the receipt of any TMT message whose address correspondsto that of the IRU and makes those messages available to the centralprocessor; (2) transmits response messages from the DACE on all output portsnot subject to disconnection.

Disconnection of digital bridge output ports is shown in the segmentationdrawing by "stopgates," preventing undesired party-line contention which wouldotherwise be created by TMT polling and DACE response messages circulating in

adjoining segments. Another function of stopgates is to prevent thecirculation of polling and data signals around link-node loops within asegment The stopgates are activated through software control from the TMT.

The primary TMT interfaces with the collocated IRU digital bridge(Figure 2). The alternate TMT, however, interfaces with the LSTDM input tosecure access to an IRU digital bridge in the adjoining segment.

A segment consists of no more than 21 link terminations, wheneverpossible. This figure is determined largely by the 30 second polling intervalrequirement, and to a lesser degree by the number of usable display lines onthe LDT without scrolling.

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Figure 3 illustrates the symbols used in the segmentation drawing. Eachmaster, e.g., M34, serves as the primary for its own segment (534) and as thealternate (A34) for an adjoining segment. The interfaces are as described insection III. The DACE digital bridges are represented by diamonds and areshown connected to other digital bridges, to the master and to the link (viaan LSTDM). All connections and links represent the TRAMCON service channelbit stream. The basic communication functions (data and voice) of the linksare assumed, but not shown for simplicity. The presence of a digital'bridgeimplies the presence of an IRU. Each IRU can monitor up to four linkterminations and the station equipment. There are four link terminations forlocation (1), hence one IRU. For location (2), two IRUs are required. Toprevent M34 from polling into segment 33, a stopgate is shown to disconnectthe related digital bridge port.

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V. SEGMENTATION DESCRIPTION AND RATIONALE

The segmentation design shown in Figure 1 takes account of the networklink-geographical distribution, FCO locations, backup mastership availability,the goal of 21 maximum link terminations per segment, and the need to maintainstation monitoring and reporting in spite of possible link outages. In thefollowing discussion, salient segmentation features and problems are presentedin preference to a segment by segment analysis.

1. SEGMENTATION STRUCTURE

An optimal TRAMCON segmentation structure will compensate for transmissionlink and TMT/FCO failures to the maximum extent possible. The followingexamples from Figure I illustrate this design aspect:

a. Segments 30 and 31 - M31 at Berlin monitors the eight sites insegment 31. If M31 or the entire site should fail, A29 (alternate side of1429) would provide the backup for 1431 through the link to Schwarzenborn.Similarly, M30 at Bremerhaven monitors all ten sites in segment 30. If M30were disabled, A31, as indicated, would provide the necessary backup throughthe link to Linderhof to monitor segment 30. Thus, the possibility of primarymaster failure is provided for by backup mastership. On the other hand, atransmission link failure, e.g., between Bocksberg and Koterberg, wouldisolate M31 from Koterberg, Rothwesten and Schwarzenborn. However, A29 couldtake over control of the latter three locations so that the segment, althoughfragmented, can still be monitored at all locations. This holds for a failureat any link from Berlin to Feldberg. Similarly, if a failure occurred in anylink from Basdahl to Linderhofe, all sites in segment 30 could still bemonitored by M30 and A31.

. b. Segments 29 and 16 - M9 at Feldberg monitors the seven sites insegment 29. A16 (the alternate side of M16) could provide the backup for M29through the link from Brueggen. Similarly, A15 proviaes backup for M16through the link from Kalkar to Herongen. In addition, any failure of one ofthe six links from Brueggen to Feldberg would not isolate the interveningsites of Roetgen, Norvenich, Drabenderhohe, Stein and Giessen since M29 andA16 together could monitor the fragmented segment. Because of the nature ofthe connectivity and defined TMT locations, not all sites are accessible tothe TMT when link failures occur, e.g., Euskirchen in segment 29; MoenchenGladbach and Rheinberg in segment 16.

2. SEGMENT TAILS

Extreme examples of potential node isolation are created by "tails," whichare dead-end strings of nodes, e.g., Mormond Hill to Edzell in segment 1. Ifany one of these links fails, one to four nodes are isolated. Murkle is in asimilar situation. Consequently, the tails of segment 1 create a tenuouscondition. The connectivity results in several other extensive tails: segment10, Italy; segment 12, Greece; segment 14, Turkey; and segment 26, Germany.

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3. SITE SPLITTING.

Three examples of splitting a site into two TRAMCON entities occur:Donnersberg, Hillingdon and Mt. Vergine. The two sectors of Donnersberg andHillingdon each have a TRAMCON master and are completely independent of eachother from a TRAMCON standpoint. The only reason for splitting a site betweentwo segments is to accomplish optimum segmentation.

4. SECOND CHANNELS

The AN/FCC-IO0 LSTDM contemplated for use on the digital links with theDRAMA radio can accommodate the 192 kb/s service channel bit stream on up to16 separate duplex channels. One channel carries the 64 kb/s voice orderwire(VOW). The remaining 128 kb/s is reserved for TRAMCON and other uses. IRUdigital bridge ports at link terminations and alternate TMT ports interfacewith LSTDM cards in conducting the TRAMCON component of the 192 kb/s servicechannel bit stream over the digital radio or fiber optic transceiver. Asecond LSTDM card is required in some cases for the alternate TRAMCON masterto gain access to a remote IRU digital bridge through the service channel bit 2

stream. The design avoids the use of second channels wherever possible toallow a more effective direct connection.

5. CLOSED LOOPS

By virtue of the OCS connectivity, segments 11, 18, 19, 24 and 28 containclosed link-node loops which would result in undesired circulating TMT and IRUdata signals if the loops were allowed to remain closed. The closed loop insegment 11 is composed of Naples, Camoldoli, Lago Di Patria and Epomeo.However, stopgates at Lago Di Patria and Epomeo open the loop. As a result,TMT polling is prevented from circulating back on itself, but, instead, thepolling from Naples splits through the digital bridge into two paths: Naplesto Epomeo; and Naples to Camoldoli (Agnano and Capodichino) to Lago DiPatria. IRU response paths are the same in a reverse direction. If, duringnormal operation, a link from Naples to Camoldoli or a link from Camoldoli toLago Di Patria should become inoperative, the TMT would request the stopgates

at Epomeo and Lago Di Patria, in turn, to open, thus accessing these nodesfrom the Naples - Epomeo direction (stopgates are active on the transmitdirection of the digital bridge duplex ports). A similar analysis applies tosegment 18 and 24 for the Chievres, Flobecq, Lechenoi, SHAPE loop and theVaihingen, Friolzheim, Stuttgart, Hohenstadt loops, respectively. Forsegments 19 and 28 the circulatory loop problem is countered by using thesecond port of the primary TNT. The reason for doing this is that, by thisconfiguration, one less IRU digital bridge is used at the TNT location. Forsegment 28, the loop nodes are Frankfurt, Breitsol, Melibocus and Hanau. TMTM28 is able to poll the segment loop either into Breitsol or Hanau. The otherTMT port is inactive and effectively opens the loop. Again, if any one of thelinks become disabled, the TNT is able to poll in the direction(s) required tocover all nodes of the loop. The same TMT configuration is used to monitorthe Hahn, Wuescheim, Ellerspring loop of segment 19.

10

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6. ALTERNATE TNT ROUTING

An important criterion for proper segmentation design is that thealternate TNT does not traverse a third segment from its own segment locationto the segment it is backing up. The reason for this is twofold: (1),alternate traversal of a third segment would create undesirable polling by twomasters in one segment; (2), the ability of the alternate to back up a segmentwould depend on the condition of another segment.

;- 7. ALTERNATE TNT BACKUP

* Another criterion for proper segmentation design is that the alternate TMT

*. back up only one segment. This has been accomplished except in one case:Coltano, which now backs up segments 8 and 23. The requirement by reference[8] that Vaihingen alternate for Coltano instead of Aviano because of trafficflow considerations leaves it impossible for Aviano to alternate for anysegment without traversing another segment. A preferred overall segmentationdesign limiting alternate backup to one segment would have Vaihingen as backupfor Aviano and Aviano as backup for Coltano.

11

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VI. TRAMCON DATABASE

Information from the Segmentation Drawing No. 201032, Rev. A, is compiledin data base TRAMCON.EURSEGRE, dated 27 Feb 1985. Sorting programs weredeveloped to give segmentation printouts by (1) segment (Table I), (2) country(Table II), and (3) Mildep (Tables III, IV, V). Information included is sitename, segment number, primary and backup TMT number, IRU, TMT, RDT, linktermination and 2nd channel quantities, MILDEP, FCO and Intermediate ControlOffice (ICO) identification and summations. A summary of the primary andbackup master locations is shown in Table VI.

An "X" in the FCO or ICO column of Table VI indicates that thecorresponding primary master location is either a Facility Control Office oran Intermediate Control Office. The FCO and ICO locations are in accordancewith the DCA-Europe FCO realignment of reference [9]. Six other primarymaster locations - Brueggen, Chievres, Hahn, Kalkar, Nuernberg and Thurso -

are not covered by reference [9]. The rationale for selecting these sixlocations for TNT installation is as follows:

(a) Chievres

In reference [101, the 5th Signal Command, Worms, GE recommended theTNT be installed at Chievres TCF for DEB III (and a RDT at SHAPE TCF), citedthe adequacy of personnel, space and power, and remarked that since Chievresis manned only by U.S. personnel, DCS links would remain under U.S. control.USACC, USACSA and DCEC concurred with the recommendation. Further, DCEC notedin their evaluation (reference [11)) that the location of a RDT at SHAPECommand Center (SCC) enhances survivability of the total DEB system sinceaccess to TRANCON information is essential in a reconstitution situation.

(b) Thurso

NAVTELCOM recommended in their March 1982 comments on TRAMCON thatNAVCOMIMSTA Thurso be designated as a TMT location since it has maintenanceresponsibility for Murkle, Latheron, Edzell, Kinnaber, Inverbervie andAberdeen.

(c) Kalkar

This site has been recommended for the TMT location by the 5th SignalCommand in their evaluation of an early TRAMCON segmentation design. It is tobe noted that the Air Force operates and maintains all of the sites in theKalkar segment.

(d) Brueggen, Hahn and Nuernberg

Good segmentation uesign practice required the designation of thesethree additional sites as master locations. Their selection, coordinated withDCEC and DCA-Europe, gives consistent Mildep responsibility within thesegments.

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TABLE VI. TRAMCON PRIMARY AND BACKUP TMT LOCATIONS

Segment Master Location FCO ICO* Remarks- Primary Backup

1 Thurso Martlesham Heath2 Martlesham Heath Thurso x3 Croughton Hillingdon x 2 TMTs at Hillingdon4 Mildenhall Hillingdon x5 Hillingdon Croughton x6 Hillingdon Mildenhall x7 Torrejon Mt. Vergine x8 Avlano Coltano x9 Coltano Vaihingen x

10 At. Vergine Torrejon x11 Naples Hellenikon x12 Hellenikon Naples x13 Sahin Tepesi Elmadag x14 Elmadag Sahin Tepesi x15 Kalkar Bremerhaven16 Brueggen Kalkar17 Schoenfeld Chievres x18 Chievres Schoenfeld19 Hahn Ramstein20 Ramstein Pirmasens x21 Donnersberg Hahn x 2 TMTs at Donnersberg22 Donnersberg Heidelberg x23 Pirmasens Coltano x24 Vaihingen Reese Augsberg x25 Reese Augsberg Nuerenberg x26 Nuernberg Frankfurt27 Heidelberg Donnersberg x28 Frankfurt Donnersberg x29 Feldberg Brueggen x30 Bremerhaven Berlin x31 Berlin Feldberg x

* Other ICOs are: LondonMt. VendaMt. CornaMt. LimbaraMartina FrancaLangerkopfMt. PaterasMuhl

30

VII. UNINSTALLED EQUIPMENT COST ($K)

The uninstalled equipment costs for the major TRAMCON items are based onthe following per unit planning costs. These are subject to change,especially for the IRU which is scheduled for contract award in March 1985.

Unit Cost

TMT $105.0IRU 22.0RDT 11.0

LSTDM 2nd Channel 0.5

TABLE VII. UNINSTALLED EQUIPMENT COST ($K) - 31 SEGMENTSS

Unit Quantity Total

TMT 31 $3255IRU 243 5346RDT 63 693

LSTDM 2nd Channel 118 59 D

Total $9353

TABLE VIII. UNINSTALLED EQUIPMENT COST ($K) - MILDEPs

Unit Amy Navy Air Force TotalsI

Qty Cost Qty Cost Qty Cost

TMT 13 $1365 2 $210 16 $1680 $3255IRU 77 1694 18 396 148 3256 5346RDT 26 286 4 44 33 363 693

LSTDM 2nd Ch 26 13 6 3 86 43 59

Total $3358 $653 $5342 $9353 . -

3

31 ::::

..................................................--.. .-.... ...

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32

REFERENCES

1. DCA Ltr, BlO1, Develop a DCS Transmission Monitor and Control(TRAMCON) Segmentation Plan, 19 Sep 83.

2. DCEC Msg, R210, 291605Z Nov 84.

3. DCA-Europe Msg, E510, 281309Z Dec 84.

4. Concept of Operations for Transmission Monitoring and Control(TRAMCON) Annex 2, Aug 1984.

5. DCA Drawing 201026, Existing and Planned Digital Connectivity for

DCS Europe.

6. TRAMCON System Specification, 24 Sep 1984.

7. Prime Item Development Specification for the Intelligent RemoteUnit (IRU) of the Transmission Monitoring and Control (TRAMCON)System of the Defense Communications System (DCS).

8. DCA-Europe Msg, E510, 301045Z Jul 84.

9. DCA-Europe Msg, ElOO/E610/E618, 141414Z Mar 84.

10. 5th SigCmd Msg, CCE-OP-RT, 191205Z Sep 83.

11. DCEC DF, R230, DEB III TRAMCON Equipment, 14 Oct 1983. -"

Ip

Lt

33 - "

, .*' . . . * .

LIST OF ACRONYMS

DACE Data Acquisition and Control Element

DCS Defense Communications System

DEB Digital European Backbone

DRAMA Digital Radio and Multiplex Acquisition

EFAS Enhanced Fault Alarm System

EURSEGRD Europe Segmentation Data Base, Revision D

EURSEGRE Europe Segmentation Data Base, Revision E

FCO Facility Control Office

ICO Intermediate Control Office

IRU Intelligent Remote Unit

LDT Local Display Terminal

LSTDM Low Speed Time Division Multiplexer

RDT Remote Display Terminal

SCC Shape Command Center

TCF Technical Control Facility

TMT TRAiMCON Master Terminal

TRAMCON Transmission Monitoring and Control

34

* -- - - " "' - - - . -' .;" L' .. .- ' . -i . - ' - ' -

- - - -- , .- _ .. : .. -r r, .rflr .. .. i .

DISTRIBUTION LIST

RIOO/RIOl - 1 RSO0 - 1R120 - 1 NCS-TS - 1R130 - 1 BlO0 - IR141 - 14 B420 - 1R200 - 1 303 - 1R400 - 1 308C - IR600 - I B420 - 1

J700 - 1

DCA-EUR - 2 Commander, Defense Communications AgencyEuropean Area, ATTN: Technical LibraryAPO New York 09131-5000

DCA-EUR - 20 Commander, Defense Communications AgencyEuropean Area, ATTN: E510, APO, NY 09131-5000

DCA-PAC - 3 CommanderDefense Communications Agency Pacific AreaATTN: P307Wheeler AFB, HI 96854-5000

USAISC - 2 Commander, USA Information Systems CormnandATTN: OCS Plans, AS-PLN-fTFt. Huachuca, AZ 85613-5000

NAVTELCO - 2 Commander, U.S. Naval Telecommunications cnrinandATTN: N41F4401 Massachusetts Ave., N.W.Washington, D.C. 20390

AFCC - 2 Commander, Air Force Communications CormmandATTN: EPPDScott AFB, IL 62225

AFCL - 2 Headquarters, Air Force Logistics ConmmandATTN: DCXWright Patterson AFB, OH 45433

AFSC - 2 Headquarters, Air Fcrce Systems CommandATTN: SDEAndrews AFB, MD 20334

USAISMA - 1 HQ USAISMA, ATTN: ASi4-TSC-B (Capt. Gray),Ft. Monmouth, N J 07703 "

35

.7 ..

DISTRIBUTION LIST (cont'd)

ESD-EUR I Conmmander, ESD-EURATTN: DC (Lt. Streeter)APO NY 09012

ESD -2 Commander, Department of the Air Force -

Electronic Systems DivisionATTN: ESO/TCJ2Hanscom AFB M~A 01731

NICSMA - 1 Director, U.S. Defense Comunications Office,Brussels (NICSMA), APO New York 09667

USDCFO - 1 Chief, USDCFO/US NATOAPO New York 09667

USNAVALEX I U. S. Naval Electronics Engineering Center-PortsmouthATTN: Technical LibraryP. 0. Box 55, Portsmouth, VA 23706

US NAY SHORE EE PAC I U. S. Naval Shore Electronics EngineeringActivity Pacific, Box 130, ATTN: Code 420Pearl Harbor, HI 96860

36

411

*FILMED

6p- 8 5

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