1、METRICMIL-STD-2042-4B(SH)25 July 2002SUPERSEDINGMIL-STD-2042-4A(SH)29 September 1997MIL-STD-2042-4(SH)7 July 1993DEPARTMENT OF DEFENSESTANDARD PRACTICEFIBER OPTIC CABLE TOPOLOGY INSTALLATIONSTANDARD METHODS FOR NAVAL SHIPS(CABLEWAYS)(PART 4 OF 7 PARTS)AMSC N/A AREA GDRQDISTRIBUTION STATEMENT A. Appr
2、oved for public release; distribution is unlimitedProvided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-STD-2042-4B(SH)iiFOREWORD1. This Department of Defense Standard Practice is approved for use by theNaval Sea Systems Command, Department of the Navy
3、, and is available for use by allDepartments and Agencies of the Department of Defense.2. Beneficial comments (recommendations, additions, deletions) and anypertinent data which may be of use in improving this document should be addressedto: Department of the Navy, Naval Sea Systems Command, ATTN: S
4、EA 05Q, 1333 IsaacHull Avenue Southeast, Stop 5160, Washington Navy Yard, DC 20376-5160 by using theself-addressed Standardization Document Improvement Proposal (DD Form 1426)appearing at the end of this document or by letter.3. This standard practice provides detailed information and guidance toper
5、sonnel concerned with the installation of fiber optic cable topologies (opticalfiber cabling and associated components) on Naval surface ships and submarines. Themethods specified herein are not identifiable to any specific ship class or type,but are intended to standardize and minimize variations i
6、n installation methods toenhance the compatibility of the installations on all Naval ships.4. In order to provide flexibility in the use and update of the installationmethods, this standard practice is issued in eight parts; the basic standardpractice and seven numbered parts as follows:Part 1 Cable
7、sPart 2 EquipmentPart 3 Cable PenetrationsPart 4 CablewaysPart 5 Connectors and InterconnectionsPart 6 TestsPart 7 Pierside Connectivity Cable Assemblies and Interconnection HardwareProvided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-STD-2042-4B(SH)i
8、iiCONTENTSPARAGRAPH PAGE1. SCOPE 11.1 Scope . 11.1.1 Applicability . 12. APPLICABLE DOCUMENTS . 22.1 General . 22.2 Government documents 22.2.1 Specifications, standards and handbooks . 22.2.2 Other Government documents 22.3 Non-Government documents 22.4 Order of precedence . 33. DEFINITIONS 43.1 Ge
9、neral fiber optics terms 43.2 Acronyms 43.3 Alternate channel . 43.4 Authorized approval . 43.5 BOF bundle 43.6 BOF fiber . 43.7 BOF tube 43.8 BOF tube coupler 43.9 BOF tube routing box 43.10 End user equipment 43.11 Fiber optic cable plant (FOCP) 43.12 Fiber optic cable topology 43.13 Fiber optic i
10、nterconnection box (FOICB) . 43.14 Installing activity . 43.15 Local cable . 53.16 Minimum bend diameter . 53.17 Non-redundant channel (NRC) . 53.18 Normal channel 53.19 Optical fiber cable . 53.20 Optical fiber cable component (OFCC) 53.21 Outlet box 53.22 Trunk . 53.23 Trunk cable . 53.24 Tube fur
11、cation unit . 54. GENERAL REQUIREMENTS . 64.1 Location of optical fiber cable runs 64.1.1 Main fore and aft cable runs 64.1.1.1 Surface ships . 64.1.1.2 Submarines 64.1.2 Vertical cable runs . 64.1.3 Optical fiber local cable runs 64.1.4 Cable runs with special requirements 64.1.4.1 Control from mor
12、e than one location . 64.1.4.2 Control by two cables from one location . 74.1.4.3 Cables containing redundant fibers 74.1.5 Protection of cable . 74.1.5.1 Protection from battle damage . 74.1.5.2 Protection from mechanical damage . 74.1.5.2.1 Protection in cargo spaces 74.1.5.2.2 Protection in riser
13、 boxes and multiple cable penetrators 7Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-STD-2042-4B(SH)ivCONTENTSPARAGRAPH PAGE4.1.5.2.3 Protection on an oiler weather deck. 84.1.5.2.4 Special protection for BOF cables. 84.1.5.3 Protection from th
14、e weather . 84.1.5.4 Protection from excessive heat 84.1.5.5 Protection from excessive moisture 84.1.6 Cable runs through bilges, submerged spaces and voids . 84.1.7 Cable runs in hazardous locations . 84.1.8 Cable runs in hangar spaces (aircraft carriers) . 84.1.9 Cable runs to gun mounts and direc
15、tors 84.1.10 Cable runs to rotating missile launchers 84.2 Installation of optical fiber cables in cableways . 94.2.1 Cable pulling . 94.2.2 Cable pulling in armored cable cableways 94.2.3 Cable bend diameter . 94.2.3.1 Conventional optical fiber cable minimum bend diameters . 94.2.3.2 BOF cable min
16、imum bend diameters 94.2.4 Installed cable slack . 94.2.5 Cable placement in cable hangers . 104.2.6 Installation on bulkheads and overheads 104.2.6.1 Cable hangers and supports . 104.2.7 Installation on ballistic structures . 104.2.8 Double banking of cable 104.2.9 Cable retention 114.2.10 Cable ta
17、gs . 114.2.11 Dead-ended cable . 114.2.12 Temporary exposure of BOF cables to excessive heat . 114.3 Electric cable installation over fiber cable . 114.4 Cableways 114.4.1 Spare cable allowance 124.5 Fiber optic cable topology test 124.6 BOF bundle and BOF fiber installation 124.7 Safety precautions
18、 . 125. DETAILED REQUIREMENTS . 145.1 Cableways 145.1.1 Cableways (submarines) . 145.1.2 Cableways (surface ships) 145.1.3 Cableways (general) 145.1.4 Cable protection . 146. NOTES . 156.1 Intended use . 156.2 Issue of DODISS 156.3 Subject term (key word) listing 15Provided by IHSNot for ResaleNo re
19、production or networking permitted without license from IHS-,-,-MIL-STD-2042-4B(SH)11. SCOPE1.1 Scope. This standard practice provides detailed methods for installingoptical fiber cable cableways and cable protection on surface ships and submarines.1.1.1 Applicability. These criteria apply to instal
20、lations on specific shipswhen invoked by the governing ship specification or other contractual document.They are intended primarily for new construction; however, they are also applicablefor conversion or alteration of existing ships. The rapidly changing state of theart in fiber optic technology ma
21、kes it essential that some degree of flexibility beexercised in enforcing this document. When there is a conflict between thisdocument and the ship specification or contract, the ship specification or contractshall take precedence. Where ship design is such that the methods herein cannot beimplement
22、ed, users shall submit new methods or modifications of existing methods forapproval prior to implementation to: Department of the Navy, Naval Surface WarfareCenter, Dahlgren Division, ATTN: Code B35, 17320 Dahlgren Road, Dahlgren, VA 22448-5100.Provided by IHSNot for ResaleNo reproduction or network
23、ing permitted without license from IHS-,-,-MIL-STD-2042-4B(SH)22. APPLICABLE DOCUMENTS2.1 General. The documents listed in this section are specified in sections3, 4 and 5 of this standard practice. This section does not include documents citedin other sections of this standard practice or recommend
24、ed for additionalinformation or as examples. While every effort has been made to ensure thecompleteness of this list, document users are cautioned that they must meet allspecified requirements documents cited in sections 3, 4 and 5 of this standardpractice, whether or not they are listed.2.2 Governm
25、ent documents.2.2.1 Specifications, standards and handbooks. The following specifications,standards and handbooks form a part of this document to the extent specified herein.Unless otherwise specified, the issues of these documents are those listed in theissue of the Department of Defense Index of S
26、pecifications and Standards (DODISS)and supplement thereto, cited in the solicitation (see 6.2).DEPARTMENT OF DEFENSE STANDARDSMIL-STD-2003-4 - Electric Plant Installation Standard Methods forSurface Ships and Submarines (Cableways).MIL-STD-2042-1 - Fiber Optic Cable Topology Installation StandardMe
27、thods for Naval Ships (Cables)(Part 1 of 7 Parts).MIL-STD-2042-3 - Fiber Optic Cable Topology Installation StandardMethods for Naval Ships (Cable Penetrations)(Part 3of 7 Parts).MIL-STD-2042-6 - Fiber Optic Cable Topology Installation StandardMethods for Naval Ships (Tests)(Part 6 of 7 Parts).(Unles
28、s otherwise indicated, copies of the above specifications, standards, andhandbooks are available from the Standardization Documents Order Desk, 700 RobbinsAve, Building 4D, Philadelphia, PA, 19111-5094.)2.2.2 Other Government documents. The following other Government documentsform a part of this sta
29、ndard practice to the extent specified herein. Unlessotherwise specified, the issues are those cited in the solicitation.DEPARTMENT OF DEFENSE DRAWINGSNAVSEA Drawing - 803-5184182 Passive Fire Protection Insulation -Installation Details.- 302-2146949 Electronics/Electrical InstallationMethods.- 302-
30、4456087 Electronics/Electrical InstallationMethods.(Copies of documents should be obtained from the contracting activity or asdirected by the contracting officer.)2.3 Non-Government publications. The following documents form a part of thisdocument to the extent specified herein. Unless otherwise spe
31、cified, the issues ofthe documents which are DOD adopted are those listed in the issue of the DODISScited in the solicitation. Unless otherwise specified, the issues of documents notProvided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-STD-2042-4B(SH)3
32、listed in the DODISS are the issues of the documents cited in the solicitation (see6.2).AMERICAN NATIONAL STANDARDS INSTITUTE (ANSI)ANSI Z136.2 - Safe Use of Optical Fiber Communication SystemsUtilizing Laser Diode and LED Sources(Application for copies should be addressed to the American National S
33、tandardsInstitute, 1430 Broadway, New York, NY 10018-3308.)ELECTRONICS INDUSTRY ASSOCIATION/TELECOMMUNICATIONS INDUSTRY ASSOCIATIONEIA/TIA-440 - Fiber Optic Terminology.(Application for copies should be addressed to Global Engineering Documents,1990 M Street NW, Suite 400, Washington, DC 20036.)2.4
34、Order of precedence. In the event of a conflict between the text of thisdocument and the references cited herein, the text of this document takesprecedence. Nothing in this document, however, supersedes applicable laws andregulations unless specific exemption has been obtained.Provided by IHSNot for
35、 ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-STD-2042-4B(SH)43. DEFINITIONS3.1 General fiber optics terms. Definitions for general fiber optics termsused in this standard practice are in accordance with EIA/TIA-440. Definitions forother terms as they are used in th
36、is standard practice are given in the followingparagraphs.3.2 Acronyms. The following acronyms are used in this standard practice:BOF Blown optical fiberFOCP Fiber optic cable plantFOCT Fiber optic cable topologyFOICB Fiber optic interconnection boxTRB Tube routing box3.3 Alternate channel. Allocate
37、d and used backup link for a normal channel.3.4 Authorized approval. Written approval from the cognizant Governmentactivity.3.5 BOF bundle. A group of optical fibers within a special jacket that allowsthe entire bundle to be blown into a BOF tube.3.6 BOF fiber. An optical fiber with a special coatin
38、g that allows the fiberto be blown into a BOF tube.3.7 BOF tube. A tube within a BOF cable through which BOF fibers or BOFbundles are blown.3.8 BOF tube coupler. A device used to join two BOF tubes together.3.9 BOF tube routing box (TRB). An enclosure for holding BOF cables (trunkand local), BOF tub
39、es (trunk and local), and tube couplers to interconnect BOFtubes.3.10 End user equipment. Any cabinet, case, panel, or device that containscomponents that are either the origin or destination of an optical signal.3.11 Fiber optic cable plant (FOCP). A subset of the FOCT that excludes localcables and
40、 their associated components. A conventional FOCP includes FOICBs, trunkcables and their associated connectors and splices. A BOF FOCP consists of FOICBs,TRBs, tube couplers, BOF trunk cables, BOF fibers, BOF bundles, tube furcation unitsand associated connectors and splices.3.12 Fiber optic cable t
41、opology. An integrated optical fiber distributionsystem that provides the optical interconnection between end user equipments. Aconventional FOCT includes the conventional FOCP components and outlet boxes, localcables and their associated connectors and splices. A BOF FOCT includes the BOFFOCP compo
42、nents, BOF cable furcations, local conventional cables, local BOF cables,and associated connectors and splices.3.13 Fiber optic interconnection box (FOICB). An enclosure for holdingoptical fiber cable (BOF and conventional), BOF tubes, tube furcation units, andoptical fiber splices, connectors and a
43、dapters.3.14 Installing activity. An installing activity is any military, commercial,or industrial organization involved with the installation of fiber optic cabletopologies aboard Naval ships.Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-STD-2
44、042-4B(SH)53.15 Local cable.3.15.1 Local conventional cable. A conventional optical fiber cable that runsbetween an end user equipment and an FOICB (or outlet box), or between an FOICB andan outlet box.3.15.2 Local BOF cable. A BOF cable that runs between end user equipment anda TRB, or between a TR
45、B and an outlet box.3.16 Minimum bend diameter. The diameter at which a conventional opticalfiber cable, OFCC (see 3.20), loose tube furcation cable, or BOF bundle (see 3.5)can be bent without degrading optical performance, or the diameter at which a BOFcable or BOF tube (see 3.7) can be bent withou
46、t kinking a BOF tube. The short-termbend diameter applies during handling and installing; the long-term bend diameterapplies to the completed installation.3.17 Non-redundant channel (NRC). A non-redundant channel is any allocatedand used active link that has no system required backup link.3.18 Norma
47、l channel. A normal channel is an allocated and used active linkbetween system equipment that has a designated active backup link.3.19 Optical fiber cable. A cable that contains optical fibers.3.19.1 BOF cable. A cable that contains one or more BOF tubes through whichoptical fibers or optical fiber
48、bundles are blown.3.19.2 Conventional optical fiber cable. An optical fiber cable in which theoptical fiber is an integral part of the cable and is installed during the cablemanufacturing process.3.20 Optical fiber cable component (OFCC). A buffered fiber augmented with aconcentric layer of strength
49、 members and an overall jacket.3.21 Outlet box. An outlet box is a small termination box used to break out alocal cable from an interconnection box to one or more equipments in a compartmentor area.3.22 Trunk. A set of trunk cables that run along the same cableways betweentwo FOCP boxes (TRBs, FOICBs).3.23 Trunk cable. An optical fiber cable that runs between two FOICBs orTRBs. Typically, trunk cables are run in the main cablewa
