40000_Bell_System_Technical_Reference_Catalog_Dec75 40000 Bell System Technical Reference Catalog Dec75
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PUB 40000 Bell System TECHNICAL REFERENCE Catalog December 1975 TABLE OF CONTENTS GENERAL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 ORDERING OF TECHNICAL REFERENCE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 ADMINISTRATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . • . . . . . 3 DATA COMMUNICATIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 Facilities for Data Communications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 Data Sets, Data Auxiliary Sets and Data Service Units . . . . . . . . . . . . . . . . . . . . . . . . 5 Data Communications Systems and Terminals ....... ....................... 9 Data Interconnection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11 VOICE COMMUNICATIONS . . . . . . . . . .. .. . .. . .. .. .. .. .. . .. . .. . . .. .. .. .. .. . . . 12 Protective Connecting Arrangements - Manual, Terminal . . . . . . . . . . . . . . . . . . . 12 Protective Connecting Arrangements - Automatic, Terminal................. 14 Protective Connecting Arrangements - Manual, System ................... _.. 16 Protective Connecting Arrangements - Automatic, System......... . . . . . . . . . 17 Protective Connecting Arrangements - Private Line . . . . . . . . . . . . . . . . . . . . . . . . 19 Protective Connecting Arrangements - Miscellaneous. . . . . . . . . . . . . . . . . . . . . . . 20 Protective Connecting Arrangements - PBX Adjuncts. . . . . . . . . . . . . . . . . . . . . . . 21 RADIO AND TRANSMISSION ENGINEERING . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22 AlTESTATION PROGRAMS . . . . . .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. . . . . . . . . . . . 23 CONFORMANCE PROGRAMS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24 BELL SYSTEM TECHNICAL REFERENCES Each Protective Connecting Arrangement is further defined by a Uniform Service Order Code (USOC), e.g., QKT, which should be used for ordering purposes when the customer desires the installation of a connecting arrangement. GENERAL Bell System Technical References provide interface information to designers and manufacturers of business machines, communications systems and terminal equipment. The subjects covered by these Technical References include data set inter.face specifications, data communications systems and terminals, data connecting arrangements, protective connecting arrangements, various transmission channels and services, PICTUREPHONE®service, Attestation Programs and Conformance Programs. At the present time, these Technical References fall into six basic categories: Data Communications, Voice Communications, Radio and Transmission Engineering, PICTUREPHONE®service, Attestation Programs and Conformance Programs. As additional needs are determined, new Technical References within these categories and new categories will be provided. It is the responsibility of the manufacturer to advise the customer of the proper USOC; and it is the customer's responsibility to order the proper USOC from the Telephone Company. ORDERING OF TECHNICAL REFERENCES One-Time Orders All orders should indicate the Technical Reference(s) desired by catalog number and quantity using the following format: (Quantity) Technical References (Catalog Number) If all Technical References in either the Data Communications or Voice Communications categories are desired, they may be ordered as a set using the catalog number assigned to that particular category. For example: Technical References are prepared in two forms, Standard and Preliminary. Standard Technical References (e.g., Data Sets 201 A and 201 B August 1969) are provided for equipment and services which are expected to remain unchanged and avai Iable for a relatively long period of time. Preliminary Technical References (e.g., AD1 -Preliminary-October 1974) are provided for new equipment and services and indicate information which may be changed or revised in a relatively short time. This does not mean that a manufacturer should not build equipment that is compatible with the information listed but it does offer a caution that the information presented may change. (Quantity) Standing Orders In addition to one-time orders it is also possible to place a standing order for al I new and revised Technical References in a given category (i.e., Transmission Engineering PICTUREPHONE service or Attestation Programs). To place a standing order, use the following words: This catalog of Technical References, to be published as required, lists all current Bell System Technical References. Included for each Technical Reference is the title, a synopsis and an ordering number (PUB4XXXX). In addition, a listing is provided to permit ordering of complete sets of Technical References in either the Data Communications or Voice Communications categories. Companies on standing order distribution will automatically receive a copy of the catalog. ® Complete Set of Voice Communications Technical References - PUB42000 Standing order for (Quantity) copies of all new [Category, (e.g., Voice, Data or Transmission)] Technical References. Bell System Companies Bell System Organizations may order Technical References using Form SD-1 .80.80 and address it to: Western Electric Company, Incorporated Indiana Publication Center P. 0. Box 26205 Indianapolis, Indiana 46226 Registered Service Mark of AT&T Co. 1 All requests should include both billing and shipping addresses. Billing will be rendered by the Western Electric Company, therefore, all checks should be made payable to them. Non-Bell Companies Non-Bell Companies should submit written requests for Technical References to: American Telephone and Telegraph Co. Supervisor - Information Distribution Center 195 Broadway, Room 208 New York, New York 10007 Pricing Information The current Commercial Price for Technical References is $1.50 each except the following: PUB40001 (Binder) PUB41004 PUB41005 PUB41006 PUB41007 PUB41008 PUB41009 PUB41204 PUB41212 PUB41213 PUB41403 PUB41405 PUB41702 PUB41704 PUB41705 PUB41706 PUB41707 PUB41708 PUB41709 PUB41712 PUB42103 PUB42201 PUB42210 PUB43101 PUB43201 PUB43301 PUB43401 PUB44101 $4.35 2.10 1.55 1.65 3.05 1.75 1.65 1.65 1.60 1.95 2.10 1.70 1.95 1.70 1.75 1.70 1.65 1.80 1.65 1.80 1.70 1.70 1.80 2.80 2.05 1.70 1.90 3.90 ea. ea. ea. ea. ea. ea. ea. ea. ea. ea. ea. ea. ea. ea. ea. ea. ea. ea. ea. ea. ea. ea. ea. ea. ea. ea. ea. ea. There is no charge for addenda. Prices subject to change without notice. The price of a complete set or a PUB series (i.e., PUB 41000) is determined by the prices of individual references. Prices do not include taxes or premium mailing charges. 2 ADMINISTRATION *PUB40000 Technical Reference CatalogDecember 197 5 Lists all current Bell System Technical References and provides ordering information, catalog numbers and synopsis. PUB40001 Technical Reference Binder A general purpose four-ring binder suitable for all categories of Bell System Technical References. This binder will hold approximately 15 individual Technical References. DATA COMMUNICATIONS PUB41000 Complete Set of Data Communications Technical References Facilities for Data Communications PUB41001 30-Baud Private Line Channels Interface Specification December 1967 Describes a private line channel capable of transmitting two-state ("mark-space," "binary") signals at rates up to 30-baud for metering, supervisory control and miscellaneous signaling purposes. Metal lie continuity, end-to-end, is not a requirement of this channel and will generally not be available. The interface signal is two-state direct current. PUB41002 45- 55- & 75-Baud Private Line Channels Interface Specification December 1967 Describes three private line channels capable of transmitting two-state ("mark-space," "binary") signals up to their respective rated speeds for teletypewriter, data, metering, supervisory control and miscellaneous signaling purposes. Metallic continuity, end-to-end, is not a requirement of this channel and wi II generally not be available. The interface signal is two-state direct current. PUB41003 1 50-Baud Private Line Channels Interface Specification Revised September 1 97 5 Defines the interface for the 1 50 Baud Private Line Channel as presented to Customer-Provided Terminals. PUB41004 Data Communications Using Voiceband Private Line Channels -October 1973 Describes voiceband channel arrangements for private line data transmission. Provides analog impairment limits supported on channels, and digital performance supported with Bell System service offerings; interface requirements for analog channels; engineering considerations for two-point and multipoint channel usage; and info rm at ion on maintenance and channel availability. * Revised 3 PUB41005 Data Communications Using The Switched Telecommunications Network-Revised May 1971 Describes the structure and operation of the DOD network; presents switching and transmission performance data on the network and discusses topics related to data communications on the DOD network. PUB41006 Attenuation and Envelope Delay Characteristics from the 1969-70 Switched Telecommunications Network Connection Survey June 1973 Provides detailed information on attenuation and envelope delay characteristics on toll connections from the 1969-70 Switched Telecommunications Network Connection Survey. PUB41007 1969 - 70 Switched Telecommunications Network Connection Survey (Reprints of Bell System Technical Journal Articles) April 1971 Describes analog transmission parameter performance, low-speed data transmission performance, and high-speed voiceband data transmission performance of the Switched Telecommunications Network. This is a series of three Bell System Technical Journal Articles which summarize Bell Telephone Laboratories' 1969-70 Connection Survey. PUB41008 Analog Parameters Affecting Voiceband Data Transmission Description of Parameters July 1974 Transmission Parameters Affecting Data Transmission Measuring TechniquesRevised May 1975 A tutorial describing analog parameter which may effect data transmission over voiceband channels. PUB41009 This Technical Reference br~efly defines the parameters affecting data transmission described in the companion Technical Reference (PUB41008) and describes the techniques used by the Bel I System to measure these parameters. In addition, physical and environmental requirements of test equipment used by the Bell System are provided. PUB41011 Transmission Specifications for Voice Grade Private Line Protective Relaying Channels May 1973 This Technical Reference provides information on a voice grade private line channel specifically designed for power industry protective relaying applications. PUB41012 1A Data Station, Multichannel Arrangement Used in Provision of Two-Point Channelizing Service -June 1973 The 1A Data Station, Multichannel Arrangement is a frequency division multiplexer capable of deriving 75and/or150 baud channels from a 3002 private line voiceband channel. It is arranged for mounting on the customer's premises and provides test capability for trouble sectionalization. PUB41013 Transmission Specifications for Low Speed Signaling System Channels-July 1975 Describes a private line channel capable of unidirectional transfer of customer generated signals generally characterized as "McCulloh" systems. Metallic continuity is not a requirement of this channel. 4 PUB41021 Digital Data System - Channel Interface Specifications Preliminary-March 1973 Describes the Digital Data System (DDS) and the interface between the channel termination equipment of the DDS, contained in a Channel Service Unit (CSU) and the customer's data terminal equipment. A CSU is used when the customer's equipment performs the following functions: coding and decoding, timing recovery, synchronous sampling, formatting, and generation and recognition of control signals. Also see PUB41 450. PUB41022 Multistation DATAPHONE®Dig ital Service -Preliminary September 197 4 Describes the Multistation DATAPHONE®Digital Service which utilizes the Digital Data System (DDS) to provide a full-duplex transmission capability between a control station and two or more remote stations. Each station may have the service terminated in either a DDS Channel S.ervice Unit (CSU) or a Data Service Unit (DSU), described in PUB's 41021 and 41450, respectively. Data can be transmitted at the synchronous data rates of 2.4, 4.8, 9.6, or 56 kb/s. Data Sets, Data Auxiliary Sets and Data Service Units PUB41101 Data Set 1 03A Interface Specification -February 1967 Data Set 103A provides full-duplex low-speed serial data transmission at rates up to 300 bps. The 103A is used in conjunction with Data Auxiliary Set 80481 and may be arranged for automatic origination, automatic answering and alternate voice. This data set is used for DATAPHONE service and in TWX-CE applications. PUB41102 Data Set 103A3 Data Set 103E Data Set 103G Data Set 103H Interface Specification October 1973 Data Sets 103A3, E, G, and H provide ful I-duplex low-speed serial data transmission at rates up to 300 bps. The 103E is a basic data set without power supply and attendant controls and is designed for multiple set installations. The 103A3 set consists of a 103E in a single unit housing and operates with a standard key telephone set. The 103G is similar to the 103E but has an integrated housing and provides a card dialer. The 103H is also similar to the 103E but is designed for mounting in a data terminal. The 103G and H are now rated Manufacture Discontinued. These data sets are used for DATAPHONE service. ® Registered Service Mark of AT&T Co. 5 PUB41103 Data Set 1 03F Interface Specification - May 1964 Data Set 103F provides ful I-duplex low-speed serial data transmission at rates up to 300 bps. It is intended for use on private line channels and does not include a provision for voice transmission. PUB41104 Data Set 11 3A Interface Specification -August 1973 Data Set 113A is an originate only, full-duplex low-speed serial data set for use at rates up to 300 bps. This is a Iine powered data set designed for DATAPHONE service applications. PUB41105 11 3-Type Data Station Interface SpecificationOctober 1971 Description: The 113-type Data Station provides for low-speed, serial, FSK, full-duplex data transmission over the switched telecommunications network. It is intended for use in multiple data set, answer-only installations such as those associated with a time-shared computer. The Data Station consists of Data Sets 1138, an appropriate cabinet (3 available sizes) and Data Auxiliary Set 804T. PUB41201 Data Sets 201 A&B August 1969 The Data Set 201-type transmits serial binary data over voice bandwidth facilities using PSK modulation. Operation is synchronous full-duplex or half-duplex and may be at 2000 bps for DATAPHONE service over the switched telecommunications network or at 2400 bps over conditioned private line channels. PUB41202 Data Sets 202C&D Interface Specifications - May 1964 The Data Sets 202C&D provide a medium speed, binary, serial data transmission system. They operate at rates up to 1200 bps for DATAPHONE service and up to 1800 bps on conditioned private Iine channels. PUB41203 Data Set 202E Series Revised September 1971 The Data Set 202E series is a modularized family of data set transmitters designed primarily to be used as input stations in data collection systems. This data set may be used on either the switched telecommunications network or on private line channels and operates at speeds compatible with Data Sets 202C&D. PUB41204 Data Set 203-Type Revised Apri I 197 4 The Data Set 203 family is designed to provide synchronous transmission and reception of highspeed digital data over the switched telecommunications network or conditioned private line data channels. These sets are capable of operating at bit rates between 1800 and 10,800 bps and various options such as separate transmitter and receiver, secondary channel and alternate voice are available. 6 PU841208 Data Set 202R Interface Specification-June 1971 The Data Set 202R is a manual only, minimum feature data set. It may be used on either the telecommunications network or on private line channels and operates at speeds compatible with Data Sets 202C and D. PU841209 Data Set 208A Interface Specification - November 1973 The Data Set 208A provides synchronous, binary 4800 bps service over basic (unconditioned) 30E>2-type four-wire channels. Features include automatic adaptive equalization, 50 millisecond turnaround time, status lamps and loop-around test capabilities. These features make the set especially well suited for multipoint polling applications as well as point-to-point systems. PU841210 Data Set 201 C Interface Specification -April 1973 The Data Set 201 -type transmits serial binary data over voice bandwidth facilities using PSK modulation. Operation is synchronous ful I-duplex or half-duplex and may be at 2000 bps (201 A) or at 2400 bps (201 8 or 201 C) over the Switched Telecommunications Network or private line channels. PU841211 Data Set 2088 Interface Specification -August 1973 The Data Set 2088 provides synchronous, binary 4800 bps service on the switched telecommunications network. Features include automatic adaptive equalization, 50 millisecond turnaround time, built-in line control, status lamps, and extensive testing capabilities which provide powerful system trouble isolating tools. These features make the set especially well suited for switched network systems requiring reliable high thruput service. PU841212 Data Sets 202S and 202T Interface Specification August 1974 Data Sets 202S and 202T, members of the new data set family, provide 1200 bps asynchronous service on the Switched Network and 1800 bps asynchronous service on the private I ine facilities, respectively. These data sets are line compatible with all 202-Type Data Sets; and provide an optional 5 bps reverse channel, indicator tamps that visually display the status of the set, and test features which provide the customer, as well as the Telephone Company, with fault isolating capabilities. PU841213 Data Set 209A Interface Specification-PreliminaryMay 1974 The Data Set 209A is a synchronous, binary serial 9600 bps data set for use on a voiceband (a 3002 data channel equipped with Type D-1, High Performance Data Conditioning) 4-wire private line. The data set features multiplexing options, rapid start-up times, extensive customer testing capabilities, modern design technology, and an attractive appearance. 7 PUB41301 Data Set 301 B Interface Specification - March 1967 The Data Set 301 B provides for the transmission of binary serial synchronous data at 40,800 bps. This data set requires a group bandwidth channel and is used in private line applications only. PUB41302 Wideband Data Stations 303-Type Interface SpecificationRevised December 1974 Data Stations 303 comprise a family of wideband data stations for use in the transmission of serial binary synchronous or nonsynchronous data. Speeds available range from 19.2 to 460.8 kbps and operation may be over either analog or digital facilities. PUB41303 The Display Data Set F-58167 Used to Provide Computer Access Service for PICTUREPHONE Stations Preliminary-August 1970 The Display Data Set F-58167 provides an interface between a customer-provided computer and the PICTUREPHONE switching network. This data set permits the PICTUREPHONE station to interact with the computer and generates character display signals which are displayed on the PICTUREPHONE screen. PUB41304 Wideband Data Set 306-Type Interface Specification July 1971 Data Set 306A provides for the transmission of serial binary synchronous data at the transfer rate of 1.344 Mb/s over T1 carrier facilities. PUB41 403 Data Set 4 0 1 J I n t er face Specification -September 1965 Data Set 401 J is a multi-frequency data receiver intended for use on DATAPHONE service. It can receive either 3-out-of-14 or 2-out-of-8 parallel signals at a speed of up to 20 characters/second. PUB41 405 Data Sets 402C - 402D Interface Specification November 1964 Data Sets 402C (transmitter) and 402D (receiver) compose a medium speed, binary, parallel data transmission system for DATAPHONE Service or private line service. The system will transmit any number of data levels up to 8 at any speed up to 75 characters per second. *PUB41 408 Data Set 407 Interface Specification-PreliminaryRevised June 1975 Data Set 407 is a multi-frequency data receiver designed for multiline installations. The data set receives at a rate of up to ten (10) characters per second over the switched telephone network or over basic (unconditioned) private lines from TOUCH-TONE®telephone sets, TOUCH-TONE pads, Bell System 401 -type data set transmitter in the "numeric mode" (two out of eight signals), or equivalent signal sources. ®Registered Service Mark of AT&T Co. *Revised - Supersedes "Data Set 407 A Interface Specification - November 1973" 8 PU841450 and PU841450A Digital Data System -Data Service Unit Interface Specifications-PreliminaryMarch 1973 Addendum - November 1 97 4 A data Service Unit (DSU) is used on data services provided via the Digital Data System (DDS). It provides plug-for-plug interchangeability with existing EIA Type D or E interfaces at synchronous speeds of 2400, 4800, and 9600 bits per second. At 56,000 bits per second the DSU provides the standard CCITT balanced de interface. Also see PU841021. PU841451 and PU841451A 1.544 M8/S Service Channel Interface Specifications Pre Iiminary February 197 4 Addendum-January 1975 A service channel providing point-to-point, full duplex transmission of serial bipolar synchronous pulses at a transfer rate of 1.544 Mb/s with constraints on signal format. PU841601 Data Auxiliary Set 801 A (Automatic Calling Unit) Interface Specification-March 1964 The Data Auxiliary Set 801 A is a de dial pulse Automatic Calling Unit (ACU) which permits a business machine to place calls over the switched telecommunications network. In operation, a telephone number stored in the business machine is passed to the ACU which sets up the call and transfers the circuit to the associated data set for the automatic transmission of data. PU841602 Data Auxiliary Set 801 C (Automatic Calling Unit) Interface Specification - September 1965 The Data Auxi Iiary Set 801 C is a TOUCH-TONE dialing Automatic Calling Unit (ACU) which permits a buswness machine to place calls over the switched telecommunications network. In operation, a telephone number stored in the business machine is passed to the ACU which sets up the call and transfers the circuit to the associated data set for the automatic transmission of data. Data Communications Systems and Terminals PU841701 8383 Teletypewriter Selective Cal Iing System September 1967 The 8383 Teletypewriter Selective Calling System is five-level half-duplex private line system using Model 28 equipment at speeds up to 100 words per minute. The traffic flow is governed by a control station which automatically polls the other stations to start their tape readers. PU841702 85A 1 and 85A2 Data Selective Calling Service Stations October 1971 The 85A-type Data Selective Calling Service Stations are used in providing eight-level, halfduplex, private line selective calling systems. The 85A 1 station pro vi des for 100 wpm operation using Model 33 or 35 equipment while the 85A2 station provides for 150 wpm operation using Model 37 equipment. The traffic flow is administered by a customer-provided computer (line control station) which sequentially polls the station transmitter and selects the designated receivers. 9 PU841703 86A 1 and 86A2 Data Selective Calling Service Stations ~ June 1969 The 86A1 and 86A2 Data Selective Calling Service Stations are used in providing eight-level half-duplex selective calling systems. The 86A1 station provides for 100 wpm operation using Model 33 or 35 equipment while the 86A2 station provides for 150 wpm operation using Model 37 equipment. Control of these stations is from a customer-provided computer (line control stations). 86A-type stations are used in applications where the customer-provided computer controls both half- and full-duplex circuits. PU841704 868-Types Data Selective Calling System Stations November 1968 868-type Data Selective Calling System Stations are used in providing 8-level full-duplex selective calling systems. The 8681 stations operate at 100 wpm using Model 33 and 35 equipment. The 8682 stations operate at 150 wpm using Model 37 equipment. Control of these stations is from a customer-provided computer. PU841705 Data Line Concentrator System (DLCS) Arrangements May 1971 Data Line Concentrator System Arrangements provide for the connection of a number of stations to a smaller number of computer communications ports. The service includes a data line concentrator, private line transmission facilities and is used with Model 33 or 35 Teletypewriters and also customer-provided terminals. PU841706 Model 37 Teletypewriter Stations for DATAPHONE Service September 1 968 Describes the operating and line characteristics of the M37 Teletypewriter Station operating on DATAPHONE Service. Included is a list of features that are available or are planned to be available. PU841707 DATASPEED® Type-4 System September 1 969 The DATASPEED Type-4 Service is a paper tape transmission system operating at either 1050 wpm or 1 200 wpm. This system provides errordetection and correction by tape pull back and re-transmission on error indication. PU841708 Type-5 DAT ASPEED System June 1970 The DATASPEED Type-5 system is a medium speed paper tape transmission operating at 750 wpm. the system uses a separate sender and receiver and can accommodate 5-, 6-, 7-, or 8level paper tape. PU841709 Receive-Only DATASPEED Printer Station Agreements System Interface Specification January 1 970 The receive-only DATASPEED Printer is a high speed nonimpact terminal. It operates at either 1050 wpm or 1 200 wpm using serial transmission and 750 wpm using parallel transmission. ®Registered Service Mark of AT&T Co. 10 PUB41710 4200 Series Magnetic Tape Terminal -August 1970 The 4200 Series Magnetic Tape Set will send from or receive data and record it on magnetic tape in a 150,000-character capacity cartridge. This system accommodates an eight-level code and operates at speeds from 100 wpm to 2400 wpm. PUB41712 DAT ASPEED Type-2 System December 1970 The DATASPEED Type 2 system is a medium speed, serial data transmission system. The system consists of a Sending terminal, paper tape punch, and a receiving terminal, paper tape punch. Operating speed is 1050 wpm using a 202-type data set. Information presented consists of on-line signa1ing and terminal characteristics. PUB41713 Models 33, 35 and 37 Stations for Point-to-Point Private Line Service-August 1971 Describes Point-to-Point Private Line Service in which Model 33, 35 or 37 Teletypewriter Stations are connected to one or both points on a communication link. The arrangements described are composed of two interconnecting stations and their communications control capability. PUB41714 9131 Teletypewriter Selective Calling Station Arrangement January 197 4 The 9131 Teletypewriter Selective Calling Station Arrangement is used in providing an eightlevel, half-duplex, private line selective calling system. It provides for 100 wpm operation using Model 33 or 35 teletypewriters. It is a contention type system (i.e., not controlled by a master station) intended primarily for handling intraline traffic. PUB41715 DATASPEED 40 Stations for DATAPHONE Service Preliminary-December 1973 The DATASPEED 40 is a medium speed data terminal which provides advanced facilities for entering, displaying, editing, printing, sending and receiving data. DATAPHONE operation at 1050 or 1 200 bits per second using 202-type data sets is described. Data Interconnection PUB41800 Complete Set of Data Interconnection Technical References PUB41801 Data Access Arrangement CDT for Manual Originating and Answering TerminalsRevised May 1973 Data Access Arrangement CDT is used to connect customer-provided terminal equipment to the switched telecommunications network. It provides for manual origination and answering of calls and includes a standard telephone set equipped with an exclusion key used to manually transfer between the TALK and DATA modes. 11 PUB41 802 Data Couplers CBS and CBT for Automatic Terminals Revised May 197 4 Data Couplers CBS and CBT are used to connect customer-provided terminal equipment to the switched telecommunications network. They provide for automatic answering, terminating and/or de dial pulse originating of calls and include a network control signaling unit and a data access arrangement. Data Coupler CBS provides EIA-RS 232C voltage type control leads. Data Coupler CBT provides contact closure type control leads. The conditions under which customer-provided data stations may generate tone signals for the purpose of addressing the switched telecommunications network are described. PUB41803 Acoustic and Inductive Coupling for Data and Voice Transmission - October 1972 Provides information of interest to the designer of acoustically or inductively coupled data and voice transmission equipment. Information includes system design considerations, transmission speeds, transmission to other data sets, power limitations, and a test instrument assembly. # PUB41804 Switched Network Transaction Telephone System - Pre Iiminary June 1975 The Transaction Telephone System is a shortmessage inquiry-response system, connecting transaction telephone terminals to a customers computer center via the switched telecommunications network. It provides a service in which inquiries are sent semi-automatically as TOUCH-TONE signals, and responses are returned in either voice or visual form. VOICE COMMUNICATIONS PUB42000 Complete Set of Voice Communications Technical References *Protective Connecting Arrangments - Manual, Terminal usoc PUB42101 QKTRevised June 1971 Manual connecting arrangement used for the connection of customer-provided voice transmitting and/or receiving equipment or communications systems to a PBX or central office station line through a Telephone Company-provided telephone set equipped with an exclusion key. PUB42102 CDXRevised February 1973 Manual voice connecting arrangement used to connect a customer-provided device, typically patching devices, which enables the connection of an incoming call to a Telephone Company provided PBX and an outgoing central office trunk line from a Telephone Company-provided PBX. #New Technical Reference * PUB41803 listed under the Data Interconnection section provides information of interest to the designer of acoustically or inductively coupled devices for Voice as well as Data Transmission. 12 PUB42103 CEBAX/CEBBX - Pre Iiminary Revised June 1970 Voice Connecting Arrangement CEBAX permits a customer to manually connect and disconnect customer-provided equipment, typically multiline conferencing devices, to a specific line terminated on a Telephone Company-provided key set (control station). For use with customer-provided equipment with only one supervisory contact. Furnished on a per line per control station basis. Voice Connecting Arrangement CEBBX permits a customer to manually connect and disconnect customer-provided equipment, typically multiline conferencing devices, to a specific line terminated on a Telephone Company-provided key set (control station). For use with customer-pr:ovided equipment with two supervisory contacts. Furnished on a per line basis. PUB42104 LOH - Preliminary July 1970 Voice connecting arrangment permitting the connection of customer-provided background music or other recorded material to central office lines terminated in a Telephone Company-provided switchboard. PUB42105 LVH -Preliminary July 1970 Voice connecting arrangement permitting the connection of customer-provided background music or other recorded material to central office or PBX lines, terminated in Telephone Companyprovided key telephone sets, while the line is in the hold mode. PUB42106 CEBAV - Preliminary August 1970 Voice connecting arrangement which permits a customer to manually connect and disconnect customer-provided equipment, typically manual announcement sets, which answers an incoming call, to a specific line terminated on a Telephone Company-provided key set (control station). For use with customer-provided equipment with only one supervisory contact. PUB42107 CEBAW-PreliminaryAugust 1970 Voice connecting arrangement which permits the customer to manually connect and automatically disconnect customer-provided equipment, typically intercom systems, to a specific line terminated on a Telephone Company-provided key set (associated station). For use with customerprovided equipment with two supervisory contacts. 13 PUB42108 FTP-PreliminaryApril 1974 Voice Connecting Arrangement F!P provides a means of connecting a customer-provided source of music or recorded information to the Music-On-Hold and/or Background-Music-OverPaging features of the Telephone Company-provided Com-Key®718 and 1434 Communications Systems. *PUB42109 FTM - Preliminary November 1975 Protective Connecting Arrangement FTM provides a means of connecting a customer-provided source of music or recorded information to the Music-On-Hold feature of a Telephone Company-provided key telephone system. Protective Connecting Arrangements - Automatic, Terminal # PUB42201 Protective Connecting Arrangement CAU is an alarm coupler which provides one-way transmission for use with customer-provided alarm device with dial pulse signaling. CAU/SU3/SU4/SUe Revised October 1975 SU3 is a tone signaling unit for use with Protectiv,e Connecting Arrangements CAU or SUe permits the operation of the alarm device to be tested or verified from a remote location. Protective Connecting Arrangement SU4 is the combination of Protective Connecting Arrangements CAU and SU3. There is no assigned code for the combination of Protective Connecting Arrangements sue and SU3. Protective Connecting Arrangement SUe is an alarm coupler modified to provide two-way transmission, to permit detection of dial tone or proper signal from a remote point. See SUeAQ. PUB42202 SU7QWRevised April 1975 Protective Connecting Arrangement SU7QW provides the means for automatically connecting customer-provided dial pulse repertory dialers. PUB42203 and PUB42203A RTT - Preliminary January 1970 Addendum -October 1974 Connecting arrangement that generates a tone to both parties under control of a customer-provided call duration timer. PUB42204 RDL/RDM-PreliminaryRevised January 1973 Voice Connecting Arrangement RDL is a recorder coupler arranged for one-way recording Voice Connecting Arrangement ROM is a recorder coupler modified to provide two-way simultaneous transmission. See RDMZR. *New Technical Reference ®Registered Trademark of AT&T Co. ~ Revised-Supersedes 11 CAU/SU3/SUe - Preliminary - November 19e9" 14 PUB42205 RCZRevlsed July 1975 PUB42206 and PUB42206A RC1 -PreliminaryRevised June 1971 Addendum -October 197 4 PUB42207 C2ACP /C2AKS Revised February 1975 Recorder connector used to connect customerprovided two-way recording equipment which provides a distinctive Connecting arrangement which provides the means for customer-provided equipment to cause a· short burst of 1400Hz tone to be sent to the local part; used for call duration timing. Protective Connecting Arrangement C2ACP is an automatic arrangement used to connect customer-provided terminal equipment to a. WATS access line, a central office station line, or a PBX/Centrex extension line. Protective Connecting Arrangement C2AKS is an ·automatic arrangement used to connect customer-provided terminal equipment to a WATS access line, a central office station line, or a PBC/Centrex extension line which concurrently terminates in a Telephone Company-provided station. PUB42208 STC - Pre Iiminary Revised February 1974 Voice connecting arrangement that provides the means for automatically connecting customerprovided transmitting and receiving speech terminal equipment, e.g., telephone sets, utilizing a three-wire interface. PUB42209 RDMZR/RDYRevised December 1973 Voice Connecting Arrangement RDMZR provides the means for automatically connecting customer provided receive-only speech terminal equipment, e.g., answering sets; it supersedes and replaces Voice Connecting Arrangement ROM. Voice Connecting Arrangement ROY provides all of the features of Voice Connecting Arrangement RDMZR and, in addition, provides volume-limited receive transmission. PUB42210 Voice Connecting Arrangement SU6AQ provides the means for automatically connecting customer-provided transmitting and receiving speech terminal equipment, e.g., alarm systems, utilizing a multi-wire interface; it supersedes and replaces Voice Connecting Arrangement SU6. SU6AQ/STS-Preliminary June 1971 Voice Connecting Arrangement STS provides all of the features of Voice Connecting Arrangement SU6AQ and, in addition, permits the transmission of customer-provided supervisory tone signals; it provides an alternative to Voice Connecting Arrangement SU3. 15 PUB42211 CEZ - Preliminary November 1971 Voice connecting arrangement which permits the manual connection and automatic disconnection of customer-provided equipment (typically conferencing devices) to a specific line on an associated Telephone Company provided key telephone set. PUB42212 STP -Preliminary May 1973 Voice Connecting Arrangement STP provides a means for automatically connecting customerprovided transmitting and receiving speech terminal equipment, e.g., key telephone systems. PUB42213 ADI - Preliminary October 197 4 Connecting Arrangement ADI provides a means to associate dial pulse dialers with single or multiline telephone sets. PUB42214 GTS - Preliminary December 197 4 Protective Connecting Arrangement GTS provides a means of connecting an automatic answering device to a telephone line. The customer-provided answering device connects via a standard 4-prong telephone jack. Protective Connecting Arrangements - Manual, System PUB42301 2A (COB) -PreliminaryFebruary 1969 Manual voice connecting arrangement used to connect a line from a customer-provided system, which provides supervisory signals, to a central office trunk line through a Telephone Companyprovided cord switchboard position. PUB42302 1A (CDA) ~Preliminary June 1969 Manual voice connecting arrangement used to connect a cord switchboard position of a customer-provided system, which provides supervisory signals, to an exchange trunk line. PUB42303 3A (CON) -PreliminaryJune 1969 Manual voice connecting arrangement used to connect a line from a customer-provided system, which provides supervisory signals, to an exchange line through a Telephone Company-provided key station. PUB42304 CD1 -PreliminaryJuly 1969 Manual voice connecting arrangement used to connect a cord switchboard position of a customer-provided system, which does not provide supervisory signals, to an exchange trunk line. PUB42305 CD4 - Preliminary August 1969 Manual voice connecting arrangement used to connect a line from a customer-provided system, which does not provide supervisory signals to an exchange trunk line through a Telephone Com,;, pany-provided cord switchboard position. 16 PUB42306 CD5 -Preliminary August 1969 Manual voice connecting arrangement used to connect a line from a customer-provided system, which does not provide supervisory signals, to an exchange line through a Telephone Companyprovided key telephone station. PUB42307 COY - Preliminary October 1969 Voice connecting arrangement used to terminate -without exchange connection-a line from a customer-provided system in a Telephone Company-provided key telephone station. Protective Connecting Arrangements - Automatic, System PUB42401 Automatic voice connecting arrangement used to connect the attendant position and dial switching equipment of a customer-provided system to an exchange trunk line arranged for two-way combination rotary or TOUCH-TONE service. CDH and CBFRevised March 197 4 Connecting Arrangement CBF is provided in addition to CDH when Data Communications equipment is used behind the PBX. CBF provides a linear attenuator which limits the three-second average power level transmitted to the central office without distorting the signal. The maximum allowable power level is determined at the time of installation. PUB42402 CD7 /CDB/CD9 and CBF Revised March 1974 Voice Connecting Arrangement CD7 is an automatic arrangement used to connect the attendant position of a customer-provided system to an exchange trunk line arranged for one-way outgoing rotary or TOUCH-TONE service. Voice Connecting Arrangement COB is an automatic arrangement used to connect the dial switching equipment of a customer-provided system to an exchange trunk line arranged for one-way outgoing rotary or TOUCH-TONE service. Voice Connecting Arrangement CD9 is an automatic arrangement used to connect the attendant position of a customer-provided system to an exchange trunk line arranged for two-way rotary or TOUCH-TONE service. Connecting Arrangement CBF is provided in addition to CD7, COB, or CD9, when Data Communications equipment is used behind the PBX. CBF provides a linear attenuator which limits the threesecond average power level transmitted to the central office without distorting the signal. The maximum allowable power level is determined at the time of installation. 17 PUB42403 and PUB42403A CET -PreliminaryOctober 1970 Addendum -June 197 4 Automatic voice connecting arrangement used to connect a customer-provided system to an exchange trunk line arranged for one-way service to the operator position of a Telephone Company long distance switchboard (the equivalent of a toll terminal). PUB42404 CD6 - Preliminary December 1 969 Automatic voice connecting arrangement used to connect an exchange trunk line arranged for oneway incoming service to the attendant position of a customer-provided system. PUB42405 and PUB42405A CED - Preliminary April 1970 Addendum - June 197 4 Automatic voice connecting arrangement used to connect a customer-provided system to an exchange trunk line, arranged for two-way service, to the operator position of a Telephone Company long distance switchboard (the equivalent of a toll terminal). PUB42406 and PUB42406A C22 - Preliminary March 1971 Addendum -October 1972 Automatic voice connecting arrangement used to connect an exchange trunk line arranged for oneway direct inward dialing (DID) service to the dial switching equipment of a customer-provided system. PUB42407 C24/C2H - Preliminary October 1971 Voice Connecting Arrangement C24 is an automatic arrangement used for two-way service which provides a four-wire voice transmission interface for connecting customer-provided channel facilities to a Telephone Company PBX. An E and M type signaling interface is provided. Voice Connecting Arrangement C2H is an automatic arrangement used for two-way service which provides a four-wire voice transmission interface for connecting customer-provided channel facilities to Telephone Company Centrex service. An E and M type signaling interface is provided. PUB42408 C27 /C2K - Preliminary October 1 971 Voice Connecting Arrangement C27 is an automatic arrangement used for two-way service which provides a two-wire voice transmission interface for connecting customer-provided channel facilities to a Telephone Company PBX. An E and M type signaling interface is provided. Voice Connecting Arrangement C2K is an automatic arrangement used for two-way service which provides a two-wire voice transmission interface for connecting customer-provided channel facilities to Telephone Company Centrex service. An E and M type signaling interface is provided 18 Protective Connecting Arrangements - Private Line PUB42501 CDQ4W -PreliminaryAugust 1969 Automatic voice connecting arrangement arranged for two-way service which provides a four-wire voice transmission interface to customer-provided dial switching equipment used with a Telephone Company-provided fourwire private line channel equipped with Telephone Company-provided channel signaling with a contact-type signaling interface. PUB42502 CDQ2W/CDQ2X Preliminary June 1971 Voice Connecting Arrangement CDQ2W is arranged for two-way service, and provides a twowire interface to customer-provided dial switching equipment. Used with Telephone Companyprovided private line channel and Telephone Company-provided channel signaling with a contact-type signaling interface. Voice Connecting Arrangement CDQ2W is arranged for two-way service, and provides a twowire interface to customer-provided dial switching equipment. Used wlth Telephone Companyprovided private line channel and Telephone Company-provided channel signaling with an Eand M-type signaling interface. PUB42503 C234W-PreliminaryFebruary 1971 Voice connecting arrangement for two-way service, which provides a four-wire voice transmission interface to customer-provided dial switching equipment. Used with a Telephone Companyprovided four-wire private line channel and customer-provided channel signaling. PUB42504 C232W-PreliminarySeptember 1971 Voice connecting arrangement arranged for twoway service, which provides a two-wire interface to customer-provided dial switching or station terminal equipment. Used with a Telephone Company-provided private line channel and customerprovided channel signaling (inband signaling only). PUB42505 CDQ4X - Preliminary October 1971 Automatic voice connecting arrangement arranged for two-way service, which provides a four-wire interface to customer-provided dial switching equipment. Used with a Telephone Company-provided four-wire private line channel equipped with Telephone Company-provided channel signaling with a E and M signaling interface. 19 Protective Connecting. Arrangements - Miscellaneous PUB42601 CEK - Preliminary April 1970 Connecting arrangement used to associate customer-provided message registers where the customer is providing the communications system and the necessary equipment to associate the station with the message registers with a central office trunk line. PUB42602 CAK -Preliminary Revised May 1972 Specification CAK describes a procedure used by AT &T Co. for the evaluation of customer-provided antique/decorator set housings. Replaces B drawings previously furnished by the local Telephone Companies. PUB42603 C1 V/RCX/GC2 - Pre Iiminary Revised June 1972 Connecting Arrangement C1 Vis used to connect customer-provided elapsed time or pen register equipment to PBX WATS lines, PBX central office trunks or station lines. This arrangement provides a closure that is maintained when the line is offhook and will not follow dial pulses. Connecting Arrangement ACX is used to connect customer-provided elapsed time or pen register equipment to PBX WATS lines, PBX central office trunks, or station Iines. This arrangement provides a closure that is maintained when the line is off-hook and opens on each dial pulse. Connecting Arrangement GC2 consists of an ac ring-up relay bridged across the line. Provides a contact closure to customer-provided equipment when ringing voltage is present. Used with ring indicator devices. PUB42604 C25 -Preliminary July 1971 Connecting arrangement used to connect the customer-provided automatic number identification equipment of a customer-provided communications system to a Bell System central office for automatic identified outward dial (AIOD) service. PUB42605 CTD Revised June 1975 Protective connecting arrangement used to connect customer-provided call diversion equipment to a Telephone Company CO trunk terminated on a Telephone Company PBX. The arrangement provides a high impedance line status indication of the supervisory and address signals on the trunk and receives a contact closure to cause diversion of an outgoing call from the PBX in the normal manner. \ 20 PUB42606 HZM - Preliminary November 197 2 Connecting Arrangement HZM is used to connect customer-provided traffic measuring equipment to station lines, PBX C. 0. trunks, and some types of tie lines. Permits the deduction of on-hook, offhook, dial pulse, TOUCH-TONE, and signaling through a high resistance connection to the line. PUB42607 VCP-NOTICEMay 25, 1973 Connecting Arrangement VCP provides the capability for a customer, on an optional basis, to supply the de power to voice connecting arrangements associated with customer-provided PBX's and certain other voice connecting arrangements where specifically provided for in its technical reference. PUB42608 KTX - Preliminary October 1973 Connecting arrangement used to connect customer-provided call diversion equipment to a Telephone Company line terminated in a Telephone Company Key Telephone System. The arrangment provides a high impedance line status indication of the supervisory and address signals on the line and receives a constant closure to divert an outgoing call. Restriction tone or an announcement is provided by the customer. PUB42609 CTH -PreliminaryDecember 1973 Protective connecting arrangement used to connect customer-provided call diversion equipment to a Telephone Company C.O. trunk terminated in a Telephone Company PBX. The arrangement provides a high impedance line status indication of the supervisory and address signals on the trunk and receives a contact closure to cause diversion of the call. Restriction tone or an announcement is provided by the customer. Protective Connecting Arrangements - PBX Adjuncts PUB42701 DCT - Pre Iiminary June 1971 Voice connecting arrangement (formerly designated Recorded Telephone Dictation Trunk Circuit) which provides trunk level access, e.g.,dial "7", from a station on a Bell System PBX or Centrex system to customer-provided dictation equipment. PUB42702 DCW - Pre Iiminary July 1971 Voice connecting arrangement (formerly designated Interface Trunk Circuit) which provides a two-part trunk level access,e.g.,dial "7", from a station on a Bell System PBX or Centrex system to customer-provided equipment capable of receiving dialed digits (serial or parallel coded) for central purposes. 21 PUB42703 DCK/DCLRevised October 1974 Voice Connecting Arrangements DCK and DCL provide trunk level access,e.g.,dial "7" from a station on a Bell System PBX or Centrex system to customer-provided equipment (e.g., dictation or radio paging) capable of receiving TOUCHTONE digits directly or dial pulse digits over a separate pair for control purposes. PUB42704 TSPXY /TSPZ1 - Preliminary March 1975 Protective Connecting Arrangements TSPXY and TSPZ1 provide a means of connecting customerprovided recording and control equipment to PBX trunks. With these arrangements, an outgoing trunk can be split to allow dialing extra digits or to pulse a number into the central office. RADIO AND TRANSMISSION ENGINEERING PUB43000 Complete Set of Radio and Transmission Engineering Technical References. Private Line Facilities PUB43101 Voice Grade Entrance Facilities for Extending Customer-Provided Communications Channels Preliminary - May 1969 Describes the various entrance facility serving arrangements, provides transmission characteristics of entrance facilities, describes signal power limitations and discusses the division of responsibility for design, operation and maintenance. PUB43201 Private Line Interconnection Voice Applications Preliminary - June 1970 Describes the standard private line offerings for voice applications which may be interconnected at one or both ends with customer-provided voice communications systems or terminal equipment. Also describes minimum protection criteria, signaling arrangements and maintenance techniques. PUB43401 ~Transmission Specifications for Private Line Metallic Circuits Preliminary-December 1971 Describes the signal level criteria objectives for private line metallic circuits (cable pairs without signal battery or amp Iification devices). This material is provided for those who use the metallic continuity of local private line channels implemented by wire pairs. It should be noted that the Telephone Companies have no obligation to provide private line channels on a metallic basis. Domestic Public Land Mobile Telephone Service-CustomerProv i ded Dial Stations Preliminary-March 1973 Provides information needed to interface customer-provided mobile telephone dial stations with Telephone Company-provided mobile telephone radio systems. Mobile Radio PUB43301 22 PUB43302 Intermodulation Interference in Radio Systems November 197 2 With the explosive growth of radio systems, problems of "overpopulation" are beginning to misuse valuable radio spectrum. One of the principal overpopulation problems encountered today, yet one about which relatively little information is available, is intermodulation interference. This Technical Reference represents present views of the problem and presents some possible solutions. PUB43303 Domestic Public Land Mobile and Maritime Radio Service System Interface CriteriaPreliminary - June 197 4 This Technical Reference is a guide for designers, manufacturers, and operators of common carrier radio systems which interface with the Bell System telephone network. The document describes the electrical information which must pass between a Bell System Central Office and a common carrier radio system in order to originate and terminate calls. This Technical Reference is not intended to provide complete design specifications or parameters or to assure the qua Iity or performance of the common carrier radio system. PICTUREPHONE SERVICE PUB44000 Complete Set of PICTUREPHONE Service Technical References PICTUREPHONE Interconnection PUB44101 PICTUREPHONE connecting arrangement which permits the connection of customer-provided video/audio terminal equipment to PICTUREPHONE facilities using a Telephone Company-provided TOUCH-TONE telephone set. PVF - Preliminary September 1970 ATTESTATION PROGRAMS PUB45000 Complete Set of Attestation Program Technical References Headsets PUB45001 and PUB45001A PUB45002 and PUB45002A 4-Wire Headset Interface Terminations and Interface Specification 1001 Preliminary-Revised July 1973 Addendum - August 197 4 Provides the procedural requirements and technical specifications (Interface Specification 1001 ) for the attestation of certain customer-provided 4-wire headsets for use with headset jacks (Headset Interface Terminations) in Bell System attendant switchboards, attendant consoles, and telephone sets. 6-Wire Headset Interface Terminations and Interface Specification 1002 Preliminary-October 1974 Addendum - January 197 5 Provides the procedural requirements and technical specifications (Interface Specification 1002) for the attestation of certain customer-provided 6-wire headsets for use with headset jacks (Headset Interface Terminations) in Bell System attendant switchboards, attendant consoles, and telephone sets. 23 Non-Powered Conferencing Devices PUB45101 and PUB45101 A Interface Termination JTC and Interface Specification 2001 Preliminary-May 1973 Addendum - October 1 97 3 Provides the procedural requirements and technical specifications (Interface Specification 2001 ) for the attestation of certain non-powered conferencing devices for use with Interface Termination JTC which is associated with Bel I System key telephone system stations. CONFORMANCE PROGRAMS PUB46000 Complete Set of Conformance Program Technical References PUB46001 and PUB46001A Conformance Program for Answering Devices Incorporating Authorized Protective Connecting Modules -PreliminaryRevised January 1975 Addendum - October 197 5 Provides the procedural requirements and technical specifications (Interface Specification 3001 ) for the conforming of certain customer-provided automatic answering devices for use with individual line exchange service or PBX/Centrex station service. 24 326-299
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