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U S WEST Communications, Inc. Technical Publication

U S WESTC ommunications, PublicationCentral OfficeTelecommunications EquipmentStandard Drawing Requirements77352 Issue AApril, 1985U S WESTC ommunications, PublicationCentral OfficeTelecommunicationsEquipment Standard DrawingRequirementsCopyright Date 198577352 Printed in AAll Rights ReservedApril 1985 PUB 77352 NoticeIssue A, April 1985 NOTICEThis Publication is prepared as a guideline for those suppliers providing equipmentdrawings to U S WEST Communications, S WEST assume no responsibility for any costs incurred by a given manufacturer inconforming to the requirements of these guidelines. Further, conformance to theseguidelines does not constitute a guarantee of acceptance of a given supplier s equipmentand/or its associated documentation for the U S WEST S WEST Communications, Inc. reserves the right to revise this document for anyreason, including but not limited to, conformity with standards promulgated by variousgovernmental or regulatory agencies; utilization of advances in the state of the technicalarts; or to reflect changes in the design of equipment, techniques, or proceduresdescribed or referred to to anyone arising out of use or reliance upon any information set forth herein isexpressly disclaimed, and no representation or warranties, expressed or implied, arema

Chapter 1 PUB 77352 Introduction Issue A, April 1985 1-2 1.2.2 Circuit Schematic Drawings Circuit Schematic Drawings consist primarily of graphical symbols or conventions

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Transcription of U S WEST Communications, Inc. Technical Publication

1 U S WESTC ommunications, PublicationCentral OfficeTelecommunications EquipmentStandard Drawing Requirements77352 Issue AApril, 1985U S WESTC ommunications, PublicationCentral OfficeTelecommunicationsEquipment Standard DrawingRequirementsCopyright Date 198577352 Printed in AAll Rights ReservedApril 1985 PUB 77352 NoticeIssue A, April 1985 NOTICEThis Publication is prepared as a guideline for those suppliers providing equipmentdrawings to U S WEST Communications, S WEST assume no responsibility for any costs incurred by a given manufacturer inconforming to the requirements of these guidelines. Further, conformance to theseguidelines does not constitute a guarantee of acceptance of a given supplier s equipmentand/or its associated documentation for the U S WEST S WEST Communications, Inc. reserves the right to revise this document for anyreason, including but not limited to, conformity with standards promulgated by variousgovernmental or regulatory agencies; utilization of advances in the state of the technicalarts; or to reflect changes in the design of equipment, techniques, or proceduresdescribed or referred to to anyone arising out of use or reliance upon any information set forth herein isexpressly disclaimed, and no representation or warranties, expressed or implied, aremade with respect to the accuracy or utility of any information set forth document is not to be construed as a suggestion to any manufacturer to modify orchange any of its products, nor does this Publication represent any commitment byU S WEST Communications, Inc.

2 To purchase any specific products. Further,conformance to this Publication does not constitute a guarantee of a given supplier'sequipment and/or its associated issues of Technical Publication 77352 will be announced to the industry at least 45days prior to the issuance date. This notice, which will come through our standardcustomer notification channels, will allow the customer time to comment on the information for U S WEST Technical Publications can be obtained from theReference Section of this further information is required, please contact:U S WEST Business Resources, - Information Release1801 California, Rm. 1320 Denver, CO 80202(303) 298-8740 Throughout this Publication , the term U S WEST signifies U S WEST Communications, 77352 NoticeIssue A, April 1985 COMMENTSPLEASE TEAR OUT AND SEND YOUR COMMENTS/SUGGESTIONS TO:U S WEST BUSINESS RESOURCES, - Writing Services1801 California, Room 1320 Denver, Colorado 80202(303) 298-8740 Information from you helps us to improve our Publications.

3 Please take a fewmoments to answer the following questions and return to the above this Publication valuable to you in determiningour requirements?YES NO Was the information accurate and up-to-date?YES NO Was the information easily understood?YES NO Were the contents logically sequenced?YES NO Were the printed pages legible?YES NO Do you feel the description in the Catalog of TechnicalInformation and/or Digest of Technical Informationadequately described this Publication ?YES NO If you answered NO to any of the questions and/or if you have any othercomments or suggestions, please explain: (Attach additional sheet, if necessary)

4 Name Date Company Address Telephone Number PUB 77352 Chapter 1 Issue A, April Publication outlines requirements for equipment specification, circuit schematic andwiring diagram drawings and has been prepared to provide telecommunicationmanufacturers with documentation guidelines.

5 The guidelines are necessary to enableTelco personnel and their engineering and installation suppliers to engineer, install, test,and maintain telecommunication drawing guidelines are standards for Mountain, Northwestern, and Pacific NorthwestBell (henceforth Telcos). The Telcos may at their discretion specify additionalrequirements for specific installations or types of satisfactory engineering and installation of manufacturer's equipment may beaccomplished without the need for any proprietary information from a supplier. Asubmission of proprietary information is neither solicited nor PurposeThe intent of the guidelines delineated in this document are applicable and generic innature to all types of telecommunications equipment , switching and criteria are highlighted, namely the ordering and the external connection of theequipment(s). These criteria are illustrated through the use of drawings and descriptionof activities so that a unified approach may be made toward the creation of standardizeddocuments and ContentThe information included in this document Specification DrawingsEquipment Specification Drawings are those drawings usually provided by themanufacturer to provide for the assembly and wiring of apparatus and frameworkparts into units of equipment which perform specific functions.

6 These specificationsare usually in "drawing" form and contain a list of the material required, as well asassembly and wiring primary purpose of Equipment Specification Drawings is to allow the Engineer toidentify the physical makeup of equipment and to specify items of material to beordered and installed in a Central , Equipment Specification Drawings are identified by five digit numbers whichare preceded by an alpha prefix such as J, H or ED, and which are suffixed to showthe serial number (A, Al, etc.) of the drawing. As changes are made or features areadded to equipment by the manufacturer, the serial or issue number of EquipmentSpecification Drawings may change. It is important that the Engineer insure that thecorrect issue of a drawing be used to engineer the equipment being added on a joband also be reflected on Central Office Base 1 PUB 77352 Introduction Issue A, April Schematic DrawingsCircuit Schematic Drawings consist primarily of graphical symbols or conventionsrepresenting the apparatus components such as relays, inductors and resistorsinterconnected by circuit , Circuit Schematic Drawings contain the basic circuit information for a partof a communications system, and provide circuit information needed for engineering,installation, testing and maintenance of the circuit it Schematic Drawings are typically five characters in length and are precededby the letters "SD.

7 " An attached suffix usually indicates the serial number used todistinguish a drawing required to complete the schematic "series" for a single more than one sheet is required, a sheet number may follow the serial some cases the manufacturer will provide a Circuit Description along with theSchematic Drawing. The Circuit Description outlines, in written form, the functions ofthe circuit and gives a detailed description of its operation. Usually these CircuitDescriptions carry the same number as the Schematic Drawings but are prefixed bythe letters "CD." DiagramsWiring Diagrams are those drawings created by a manufacturer, usually fromSchematic Drawings, to show the actual method and type of wiring installation withrespect to the physical arrangement of equipment. They may be either tabular (non-pictorial) or non-tabular (pictorial).Wiring Diagrams are typically used in connection with the engineering, manufacturing,installation and maintenance of equipment, and show the actual method and type ofwiring installation; methods of running and terminating wire; type and color of wireused.

8 Wiring Diagrams also may cross-reference an Equipment Specification Drawingor show other information to assist the Engineer in specifying equipment or options tobe added on a Wiring Diagrams may be designated by an alpha prefix, , "T," and will usuallybe numbered the same as the Schematic Drawings with which they are there may be more than one Wiring Diagram associated with a SchematicDrawing, the suffixes on Wiring Diagrams will 77352 Chapter 1 Issue A, April ResponsibilityIt is intended that the documents prepared in accordance with this Publication becompatible with the engineering standards established in the Central OfficeTelecommunications Equipment Engineering Standards for Mountain Bell, NorthwesternBell and Pacific Northwest Bell (PUB 77351) and the Central Office TelecommunicationsEquipment Installation and Removal Guidelines (PUB 77350). The media required by thethree Operating Telephone Companies of U S WEST is discussed in the TechnicalDrawing Media Standards (PUB 77002).

9 Comments, questions or suggestions for the improvement of this Publication should besubmitted to:Director, Network EngineerBell Tri-Co ServicesRoom 2802 Bell Plaza1600 Seventh AvenueSeattle, Washington 98191(206) 345-3885 PUB 77352 Chapter 2 Issue A, April 1985 Documentation Checklist1-11. GeneralThe following categories can serve as a check list to the equipment manufacturer toinsure that the basic information has been provided. Master Index and Supporting Information Schematic Drawing Equipment Ordering Application and Connection Narrative for Identification Wiring Master Index and Supporting InformationThe equipment supplier should index documentation in an orderly manner. This masterindex should serve as the transmittal vehicle for the manufacturer's approach shown in Figure 2-1 separates each functional area by utilizing alphabeticalheadings. Internal to each grouping the document should be sensitive to issue INDEXCONTENTSM aster Index andSupporting InformationDetached SchematicStocklistApplication andConnectionWiring 2-1 Master IndexSupporting information may consist of notes, additional equipment required, special tools,and any special operating conditions.

10 Suggested format is indicated by Figure patch cords, connectors, insertiontools, and other supporting information,refer to drawing XH-000-010 Figure 2-2 Supporting InformationChapter 2 PUB 77352 Documentation ChecklistIssue A, April Circuit Schematic DrawingsThe schematic drawing may include the following items: Schematic Drawing Indices and Supporting information Functional schematics Apparatus Figures Engineering Notes Sequence Charts Tables Cabling Diagrams Block Diagrams Circuit Pack Drawing Indices and Supporting Information A sheet index identifies the sheet on which desired information can be found. Italso contains the issue number of all sheets (see Figure 2-3). Supporting information is depicted within a table that shows equipment drawingsand equipment design requirements for the circuit (see Figure 2-4).CONTENTSSHEET NOTESSUPPORTING INFORMATIONAPPARATUS NOTESLEAD NOTESOPTION NOTESCIRCUIT NOTESINFORMATION NOTESTRANSMISSION TEST REQ TABLEFS 1 T, R & S LEADSFS 2 REGISTER LINE-SENDER LINE AND TRAIN LINE & CONNECTOR CRT CONTROLFS 3 CHANGE CONTROL FEATURESFS 4 CHANGE DELAY INTERRUPTED RELAYS, CHANGE DELAYFS 5 CHANGE DELAY INTERRUPTED PROTECTIONAPP FIGS.


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