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ANSI ATIS 0300223-2014 Structure and Representation of Network Channel (NC) and Network Channel Interface (NCI) Codes for Information Exchange.pdf

1、 AMERICAN NATIONAL STANDARD FOR TELECOMMUNICATIONS ATIS-0300223.2014 Structure for the Identification of Network Channel (NC) and Network Channel Interface (NCI) Codes for Information Exchange As a leading technology and solutions development organization, the Alliance for Telecommunications Industr

2、y Solutions (ATIS) brings together the top global ICT companies to advance the industrys most pressing business priorities. ATIS nearly 200 member companies are currently working to address the All-IP transition, network functions virtualization, big data analytics, cloud services, device solutions,

3、 emergency services, M2M, cyber security, network evolution, quality of service, billing support, operations, and much more. These priorities follow a fast-track development lifecycle from design and innovation through standards, specifications, requirements, business use cases, software toolkits, o

4、pen source solutions, and interoperability testing. ATIS is accredited by the American National Standards Institute (ANSI). The organization is the North American Organizational Partner for the 3rd Generation Partnership Project (3GPP), a founding Partner of the oneM2M global initiative, a member of

5、 and major U.S. contributor to the International Telecommunication Union (ITU), as well as a member of the Inter-American Telecommunication Commission (CITEL). For more information, visit www.atis.org. AMERICAN NATIONAL STANDARD Approval of an American National Standard requires review by ANSI that

6、the requirements for due process, consensus, and other criteria for approval have been met by the standards developer. Consensus is established when, in the judgment of the ANSI Board of Standards Review, substantial agreement has been reached by directly and materially affected interests. Substanti

7、al agreement means much more than a simple majority, but not necessarily unanimity. Consensus requires that all views and objections be considered, and that a concerted effort be made towards their resolution. The use of American National Standards is completely voluntary; their existence does not i

8、n any respect preclude anyone, whether he has approved the standards or not, from manufacturing, marketing, purchasing, or using products, processes, or procedures not conforming to the standards. The American National Standards Institute does not develop standards and will in no circumstances give

9、an interpretation of any American National Standard. Moreover, no person shall have the right or authority to issue an interpretation of an American National Standard in the name of the American National Standards Institute. Requests for interpretations should be addressed to the secretariat or spon

10、sor whose name appears on the title page of this standard. CAUTION NOTICE: This American National Standard may be revised or withdrawn at any time. The procedures of the American National Standards Institute require that action be taken periodically to reaffirm, revise, or withdraw this standard. Pu

11、rchasers of American National Standards may receive current information on all standards by calling or writing the American National Standards Institute. Notice of Disclaimer its length and generic representation 3.2 customer: A business entity that purchases communications services 3.3 data: A repr

12、esentation of facts, concepts, or instructions that are collected, organized, recorded, processed, and stored in a retrievable form suitable for communication, interpretation, or processing by human or automated means. (This definition refers to a group of facts taken as a unit; thus it is used with

13、 a singular verb.) 3.4 data element: A single unit of data that in a certain context is considered indivisible. It cannot be decomposed into more fundamental segments of data that have useful meanings within the business. 3.5 format structure: A combination of data elements grouped in a prescribed s

14、equence. 3.6 ICT: Information and Communication Technology 3.7 service provider: Any person, firm, association or corporation, private, public or municipal, owning, operating or providing ICT services 4 General Each data element SHALL consist of sequences of characters, each character being either a

15、lphabetic (AZ) or numeric (09). Subclause 5.1.2 contains an additional requirement for a symbol. In the format structures of clause 5 SHALL be considered as case insensitive; that is, there SHALL be no distinction made between upper and lowercase letters. However, it is recommended that the code be

16、represented with uppercase letters. Subclause 6.3 specifies the requirements for delimiter usage in the NCI format structure. 5 Data Elements Clause 5 of this standard describes data elements and data composites that are used to construct the network channel and network channel interface code format

17、s of clause 6. 5.1 Network Channel Code Data Elements 5.1.1 Channel Code A standard code to identify the general type of network channel needed to provide a transmission path with designated technical characteristics. This data element SHALL consist of two characters, each of which may be alphabetic

18、 or alphanumeric. 2This document is available from the Alliance for Telecommunications Industry Solutions (ATIS), 1200 G Street N.W., Suite 500, Washington, DC 20005 3This document is available from the Alliance for Telecommunications Industry Solutions (ATIS), 1200 G Street N.W., Suite 500, Washing

19、ton, DC 20005 ATIS-0300223.2014 3 5.1.2 Optional feature Code A standard code that supplements the Channel Code to describe details about the options available to enhance the technical performance of the network channel, or to further define the service. This data element SHALL consist of two charac

20、ters, each of which may be alphabetic, numeric, or a hyphen “-”. 5.2 Network Channel Interface Code Data Elements 5.2.1 Total Conductors A standardized code that defines the number of total physical conductors required for a network channel interface. This data element SHALL consist of two numeric c

21、haracters. 5.2.2 Protocol A standardized code that defines network channel interface requirements for signaling and transmission. This data element SHALL consist of two alphabetic characters. 5.2.3 Impedance A standardized code that represents the nominal reference impedance that will terminate the

22、network channel for the purpose of evaluating transmission performance. This data element SHALL consist of one character which may be alphabetic or numeric. 5.2.4 Delimiter #1 A standardized code indicating the start of the Protocol Option data element if a Protocol Option Code is assigned or a Tran

23、smission Level Point (TLP) code is assigned. Subclause 6.3.1 contains additional information on Delimiter #1 formatting. This data element SHALL consist of one character which may be a decimal “.” or virgule “/”. Delimiter representation for the NCI code SHALL not be specified as an alphabetic or nu

24、meric character or a hyphen “-“. 5.2.5 Protocol Options A standardized code that supplements the Protocol data element, and represents additional features (e.g., bit rate, bandwidth, etc.) available. This data element SHALL consist of one to three characters, each of which may be alphabetic or numer

25、ic. 5.2.6 Delimiter #2 A standardized code indicating the start of the Transmission Level Point (TLP) data element, if either Transmit TLP or Receive TLP values have been assigned. Subclause 6.3.1 contains additional information on Delimiter #2 formatting. This data element SHALL consist of one char

26、acter which may be a decimal “.” or virgule “/”. Delimiter representation for the NCI code SHALL not be specified as an alphabetic or numeric character or a hyphen “-“. 5.2.7 Transmission Level Point (TLP) A standardized code that represents the transmit and receive levels with orientation of the se

27、rvice provider. TLP is a single data element consisting of two codes, both of which must always be represented. ATIS-0300223.2014 4 5.2.7.1 Transmit TLP A standardized code corresponding to a value for the TLP signal level as transmitted from the service provider to the customer. This first portion

28、of the TLP data element SHALL consist of one alphabetic character, a hyphen “-”, or a blank space “ “, as explained in subclause 6.3.1. 5.2.7.2 Receive TLP A standardized code corresponding to a value for the TLP signal level as received by the service provider from the customer. This second portion

29、 of the TLP data element SHALL consist of one alphabetic character, a hyphen “-”, or a blank space “ “, as explained in subclause 6.3.1. 6 Format Structures The data composite of clause 4 is combined in presubscribed sequences to identify a network channel code and network channel interface code. Th

30、e possible data composite formats are described in the following sub clauses. 6.1 Network Channel Code The Network Channel (NC) Code is an encoded representation used to identify the technical or other specification requirements for the transmission path of the requested channel services. Included i

31、n this format are options available to enhance the technical performance of the transmission path requested. This format SHALL consist of the sequence of Channel Code and Optional Feature Code data elements, resulting in a code that consists of four characters as illustrated in Table 6.1. Table 6. 1

32、 - Network Channel Code format Channel Code Optional Feature Code Character Position 1 - 2 3 4 Character Set Alpha or alpha-numeric alpha, alpha-numeric or “-“ (hyphen) Data Element Use Required Required 6.2 Network Channel Interface Code The Network Channel Interface (NCI) Code is an encoded repres

33、entation used to identify interface characteristics at a Point of Termination (POT) or Point of Interface (POI). The NCI Code consists of seven (7) data elements including two (2) delimiters. These interface data elements are: Total Conductors, Protocol, Impedance, Delimiter #1, Protocol Options, De

34、limiter #2 and Transmission Level Points. Required data elements are Total Conductors, Protocol, and Impedance. Optional data elements are Delimiter #1, Protocol Options, Delimiter #2 and Transmission Level Points (TLP). Table A.1 illustrates the Network Channel Interface Code format that consists o

35、f a minimum of 5 characters and a maximum of 12 characters. ATIS-0300223.2014 5 Table 6. 2 - Network Channel Interface Code format Transmission Level Points Total Conductors Protocol Impedance Delimiter #1 Protocol Options Delimiter #2 Transmit TLP Receive TLP Character Position 1 2 3 4 5 6 7 9 10 1

36、1 12 Character Set Numeric Alpha Alpha or numeric “.” (decimal) or “/” (virgule) Alpha, numeric or alpha-numeric “.” (decimal) or “/” (virgule) Alpha, “-“ (hyphen) or (blank) Alpha, “-“ (hyphen) or (blank) Data Element Use Required Required Required Optional Optional Optional Optional Optional As no

37、ted in subclause 5.2.7, the Transmit TLP Code signifies the TLP transmit signal level from the service provider when transmitting to the customer. Also, the Receive TLP Code signifies the TLP receive signal level at the service provider when receiving from the customer. Because the Protocol Options

38、and Transmission Level Point data elements are optional, and the Protocol Options data element is of variable length, the NCI Code may have fewer than 12 characters. Unused character positions SHALL not be filled with spaces. Therefore, the NCI format structure does not consist entirely of fixed fie

39、lds as illustrated in Table A.1. Delimiters are required after the Impedance data element only if subsequent data elements are specified (for correct interpretation of the NCI Code). 6.3 NCI Delimiter Usage For purposes of this standard and to be consistent with most mechanized systems, delimiters a

40、re counted as characters of information. The actual character used as the delimiter may differ from system to system, but is generally either a period “.” or a virgule “/”. Delimiter representation for the NCI code SHALL not be specified as an alphabetic or numeric character or a hyphen. 6.3.1 NCI C

41、ode Delimiters The NCI code delimiters are labeled as Delimiter #1 and Delimiter #2 to differentiate them and to show their relative positions as illustrated in Table A.1. a) The Delimiter #1 data element precedes the Protocol Options data element if a Protocol Options data element is specified. Whe

42、n a Protocol Options data element is specified, the Delimiter #1 data element will be in character position 6. b) The Delimiter #2 data element precedes the TLP Codes if either a Transmit or Receive TLP Code is specified, or if both TLP Codes are specified. If a TLP Code is specified in one characte

43、r position only (i.e., Transmit or Receive TLP Code), a hyphen or the letter “O” is required as a filler in the unspecified character position. If TLP Codes are not specified (i.e., not populated), default levels found in the Telcordia Technical Publications, listed in Annex B, will apply. Delimiter

44、 #2 will not be specified if both TLP Codes are unpopulated. 6.3.2 Protocol Options Unspecified If the Protocol Options data element is not specified, but the TLP Codes are, a double delimiter - i.e., both Delimiters #1 and #2 - will be placed after character position five (5). In this case Delimite

45、r #1 will be in character ATIS-0300223.2014 6 position six (6), and Delimiter #2 will be in character position seven (7). The TLP Codes will be entered in character positions eight (8) and nine (9) accordingly. 6.3.3 Character position of Delimiter #2 If the Protocol Options data element is specifie

46、d, the character position of Delimiter #2 will be dependent on the length of the Protocol Options code. Delimiter #2 will occupy character position ten (10) if a three-character Protocol Options code is assigned. Delimiter #2 will be in character position nine (9) if a two-character Protocol Options

47、 code is assigned. Delimiter #2 will be in character position eight (8) if a one-character Protocol Options code is assigned. 7 Maintenance Agent Duties4The Maintenance Agent will be the custodian of the NC and NCI code sets and will be responsible for the following administrative duties: a) Provide

48、 for the assignment, definition and administration of the following NC and NCI data elements: Channel Code Optional Feature Code Total Conductors Protocol Impedance Protocol options Transmit Transmission Level Point (TLP) Receive Transmission Level Point (TLP) b) Develop and publish, dictionaries of

49、 NC and NCI data elements outlined in 7(a). c) Provide an industry procedure for obtaining knowledge of NC and NCI information, through the obtaining of a COMMON LANGUAGE Products NC/NCI standard level license agreement with Telcordia Technologies Inc. dba iconectiv. d) Provide services and materials under reasonable and nondiscriminatory terms. 4Telcordia Technologies, Inc. dba iconectiv (“iconectiv”) or its equivalent is such a maintenance agent. At the time of approval of this standard, ATIS and the responsible ATIS Forum/Committee that developed t

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