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Bell System Practice (BSP) Library

Some of the scans are very large so a high speed connection (or a bit of patience) is recommended. We chose not to apply much compression to the images in the documents so that they still look good when printed.

Documentation

005-120-103
Issue 7, August 1966
Winding And Spring Designations Apparatus Connecting Points Referred to In Circuit Requirements Tables Standard Since 1931
Note that this document had suffered water damage to the first four pages.

026-706-071
Issue 10-D, February 1965
200-, 206-, 209-, and 211-Type Selectors and 10-, 26-, and 32-Type Banks Requirements and Adjusting Procedures
This section covers the procedures for adjusting 200-, 206-, 209-, and 211-type selectors and 10-, 26-, and 32-type banks.

026-706-701
Issue 10-D, February 1965
200-, 206-, 209-, and 211-Type Selectors and 10-, 26-, and 32-Type Banks Requirements and Adjusting Procedures
This section covers 200-, 206-, 209-, and 211-type selectors and 10-, 26-, and 32-type banks.

026-706-801
Issue 8, December 1965

200-, 206-, 209-, and 211-Type Selectors and 10-, 26-, and 32-Type Banks Piece-Part Data and Replacement Procedures
This section covers the information necessary for ordering parts to be used in the maintenance of 200-, 206-, 209-, and 211-type selectors and 10-, 26-, and 32-type banks. It also covers approved procedures for replacing these parts.

030-705-702
Issue 10, August 1971
197- and 198-Type Switches Rotary, Vertical, and Release Mechanisms Requirements and Adjusting Procedures
This section covers the requirements and adjusting procedures for rotary, vertical, and release mechanisms of 197- and 198-type switches.

030-705-703
Issue 9, November 1967
197- and 198-Type Switches Contact Spring Assemblies Requirements and Adjusting Procedures
This section covers the requirements and adjusting procedures for contact spring assemblies associated with the rotary, vertical, and release mechanisms of 197- and 198-type switches.

030-705-704
Issue 8, April 1967
197- and 198-Type Switches Banks, Commutators, Wipers, Jack Springs and Switch Operation Requirements and Adjusting Procedures
This section covers requirements and adjusting procedures for banks, commutators, wipers, jack springs, and switch operation for 197- and 198-type switches.

030-705-706
Issue 11, March 1971
Switches 197- and 198-Types Lubrication Requirements and Procedures
This section covers requirements and procedures for lubrication of 197- and 198-type switches.

030-705-802
Issue 6, May 1967
197- and 198-Type Switches Parts Mounted Above Cover Plate Except Pawls, Pawl Pins, and Contact Spring Assemblies Piece-Part Data and Replacement Procedures
This section covers the piece-part numbers and corresponding names of the parts which it is practicable to replace in the field in the maintenance of the switches. It also contains explanatory figures showing the different parts. This information is called Piece-Part Data. It also includes Replacement Procedures for the replacement of the parts that are field-replaceable.

155-191-701
Issue 2, September 1971
Engine-Alternators -- Diesel KS-19583, 30 KW and KS-19584, 45 KW Automatically and Manually Controlled Requirements and Adjusting Procedures
This section covers the requirements and adjusting procedures for the KS-19583 and KS-19584 automatically and manually controlled diesel engine-alternators. It also covers the various options for the two sets.

157-001-013
Issue 4, December 1971
Power Systems Equipment Test List for Batteries


157-321-701
Issue 13-D, May 1962
Countercells Alkaline Requirements and Procedures
This section covers KS-5170 alkaline-type countercells.

157-421-501
Issue 5, February 1972
Dry Cells and Dry Batteries Tests and Inspections
This section covers tests and inspections of dry cells and dry batteries.

157-601-301
Issue 10, September 1971
Lead-Acid Type Storage Batteries Continuous Float Operation
This section covers the continuous float operation of low specific gravity (nominal 1.210) and high specific gravity (nominal 1.300) lead-acid batteries.

157-601-701
Issue 13, January 1972
Storage Battery Lead-Acid Type Requirements and Procedures
This section covers the apparatus requirements and adjusting procedures common to all lead-acid cells used in telephone power plants. The requirements and procedures in this section also apply generally to lead-acid batteries used for engine-starting applications.

157-631-101
Issue 5, February 1972
Storage Batteries -- Nickel-Cadmium Engine Starting and Control Description, Requirements, and Procedures
This section covers the description, requirements, and procedures of engine starting and engine control batteries of the nickel-cadmium type.

161-230-701
Issue 1, January 1953
KS-15511 Inverter Requirements and Adjusting Procedures
This section covers the apparatus requirements and adjusting procedures for the KS-15511 inverter.

161-283-301
Issue 2, November 1966
DC-To-DC Converter KS-19303 L1 Operating Methods
This section covers the operation of the KS-19303 L1 DC-to-DC converter which is primarily intended as a power supply for the 651A power plant. The converter is a dc voltage multiplier which enables a positive or negative 130-volt dc supply to be obtained from a 48-volt battery, and is designed to mount on a 23-inch relay rack.

161-283-302
Issue 1, November 1966
DC-To-DC Converter KS-19303 L3 Operating Methods
This section covers the operation of the KS-19303 L3 dc-to-dc converter which is primarily intended as a power supply for the 651A and 660 power plants. The converter is a dc multiplier which enables a positive or negative 130-volt dc supply to be obtained from a 48-volt battery. The converter is designed to mount on a 23-inch relay rack.

161-284-301
Issue 3, March 1971
DC-To-DC Converter KS-19304 Operating Methods
This section covers the operation of the KS-19304 L1 dc-to-dc converter which is primarily intended as a power supply for the 651A power plant. This converter is a dc voltage multiplier which enables a positive or negative 130-volt dc supply to be obtained from a 48-volt battery. It is designed to mount on a 23-inch relay rack.

161-305-701
Issue 5, December 1967
KS-16432 L1 and L2 Air Dryers Requirements and Adjusting Procedures
This section covers requirements and adjusting procedures for KS-16432 L1 and L2 Air Dryers. The dryers are of the refrigeration type and are used to supply dry compressed air to cable in continuous feed pressure systems.

161-315-801
Issue 1, May 1965
with July 1965 Addendum
Continuous Feed Pressure Systems D Air Dryer Maintenance and Replacement Parts
This section covers the maintenance and procedures for replacing parts of the D Air Dryer.

163-220-701
Issue 6, February 1969
Interrupters -- KS-15634 and KS-15757 Type Requirements and Adjusting Procedures
This section covers the KS-15634 L1 through L6, and L8 and KS-15757 L1 ac motor-driven interrupters used in ringing power plants.

163-704-701
Issue 10, April 1971

Addendum
Issue 1, December 1971

Ringing Machines -- Small Capacity KS-5510, KS-5546, and KS-5659 Requirements and Adjusting Procedures
This section covers the KS-5510, KS-5546, and KS-5659 ringing machines.

167-215-301
Issue 7, February 1969
Power Plants 110A (J86572) and 110B (J86455) Operating Methods
The 110A (J86572) power plant has a capacity of 10 to 120 amperes at 22 to 26 volts, or 10 to 400 amperes at 44 to 50 or 44 to 52 volts. This power plant may be used with any system where the capacities and voltage ranges are
suitable. The 110B (J86455) power plant has a capacity of 5 to 80 amperes at 24 volts. This power plant was primarily intended for use with the submarine cable system. However, it may also be used with any system where the capacities and voltage range are suitable. The 24-volt plant utilizes 30-ampere rectifiers and the 48-volt plant utilizes 30- and/or 100-ampere rectifiers as the charging medium. The 30-ampere rectifiers operate from a single-phase, 210- to 250-volt, 60-hertz, commercial ac power service. The 100-ampere rectifiers operate from a 3-phase, 210-volt, 60-hertz, ac power service and, with an additional autotransformer provided, will also operate from 230-, 250-, or 460-volt ac service.

167-255-301
Issue 7, September 1975
Ringing Power Plant 806D (J86596) Operating Methods
This section describes the operation of the 806D (J86596) ringing power plant which provides 20-hz ringing current, low and high tones, and signaling interruptions for manual and dial offices.

167-621-301
Issue 10, March 19x6
Power Plant 302A (J86434) Operating Methods
The 302A power plant consists principally of motor-generators, rectifiers, or various combinations of both, and the associated battery equipment. This plant is designed for use with dial and toll systems or their combinations. However, it may be used for other equipments for which the capacity, voltage range, and circuit arrangements are satisfactory. The plant operates from a commercial 60-Hz, 3-phase, ac power supply with voltage variations of 208, 230, 240, or 460 volts. An output provides -24 volts, -48 volts, or a combination of both voltages, with 100 to 10,000 amperes battery charging capacity. Special equipment arrangements allow an increase in charging capacity up to 20,000 amperes. The charging units are automatically started and connected in service to a value so that the charging unit or units in service
are fully loaded. As the load decreases, the charging units no longer required are automatically disconnected. In some cases when a 24-volt battery supply of less than 100 amperes is required, it is obtained by using 14 CEMF cells connected in series with the 48-volt battery. Four of these cells are automatically switched in or out of the discharge circuit, one at a time, under voltage control.

167-643-301  
167-643-302  
167-684-302  
167-684-304  
508-231-100
Issue 3, June 1965
KS-19442 Telephone Booth Identification and Installation
This booth is a deluxe type unit designed for sit-down service. It is of metal and glass and may be used singly or in various multiple arrangements.

518-010-101
Issue 2, March 1976
Centralized Key Telephone Installations
This section contains information on centralized key telephone installations using color-coded modular backboards, 88-type wiring blocks and 600-series modular panels in equipment rooms, riser closets, apparatus closets, satellite closets, and satellite locations.

518-010-105
Issue 2, September 1975
Key Telephone System Grounding and Special Protection Requirements
This section contains information on grounding and protection applicable to Key Telephone System (KTS) installations. It is intended to provide general background knowledge needed by the installer. More detailed coverage of related equipment and procedures can be found in Section 460-100-400, Protection and Grounds.

518-010-106
Issue 3, December 1978
Power Unit Selection Key Telephone Systems and Key Service Units
This section provides the methods of selecting power units having an adequate output suitable to the type and size of a centralized key telephone system.

518-010-107
Issue 1, June 1972
Key Telephone Systems Reserve Power 47C Power Unit
The 47C power unit provides emergency power to maintain talk and signal voltages, lamp voltages, and ringing voltage in key telephone systems during commercial power failures.

518-010-108
Issue 4, October 1979
Common Audible Signaling Key Telephone Systems
This section provides a general description of common audible signaling arrangements, especially those using diode matrix or signal control relays. It also describes the need and use of the 141A protector and 840A diode assembly.

518-010-109
Issue 2, August 1979
Voice Station Signaling on Manual Intercoms Identification, Installation, and Maintenance
This section covers voice signaling on manual intercom circuits using a 107B SPOKESMAN loudspeaker set, a 6-, 10-, or 20-button telephone set, and CALL DIRECTOR telephone sets.

518-114-411
Issue 3, February 1962
1A1 Key Telephone System Audible Signal Control Interrupted Common Audible Signal Using 16A or 211A Key Telephone Units Connections
This section shows connections for 16A and 211A key telephone units in key system line circuit applications which provide interrupted common audible signaling of a ringer, buzzer, or bell.

518-114-412
Issue 3, March 1961

1A1 Key Telephone System Lamp Wink Circuit Using 202A, B, C, D; 230A, B; with 209A and 210A Key Telephone Units Connections
This section covers connections required at the apparatus cabinet for the lamp wink circuit. This includes strapping between the key telephone units and termination of wires from power sources.

518-215-110
Issue 1, March 1969
Panels 583 and 584-Types Identification and Installation
This section contains information on the 583A, 584A, 584B and the new 584C panel. Information is also included on the new A65A connector cable, which is used to extend the features of the panel to a distributing point.

518-215-410
Issue 1, March 1969
Panels 583 and 584-Type Connections and Maintenance
Information in this section was formerly contained in Section 518-270-401 which is hereby cancelled. Information has been added on the 584C panel, which replaces the 584B panel used in large centralized installations of 1A2 Key Telephone System arrangements.

518-220-400
Issue 2, September 1966

400A, B, C, and D Type Key Telephone Units Identification, Installation, Connections and Maintenance
These key telephone units (KTUs) are designed for use as CO or PBX line circuit units in a 1A2 key telephone system.

518-220-401
Issue 1, April 1966
401A Key Telephone Unit Identification, Installation, Connections and Maintenance
The 401A key telephone unit (KTU) provides for manual intercom service in the 1A2 key telephone system.

553-201-201
Issue 3, July 1977
801A PBX Touch-Tone Calling Equipment Identification, Installation, and Connections
This section provides information on identification, installation, and connections of TOUCH-TONE calling receiver units when mounted in the 801A private branch exchange (PBX). Procedures for converting from rotary dial to TOUCH-TONE operation are also described.

553-201-202
Issue 2, September 1974
801A PBX Auxiliary Equipment Identification, Installation and Connections
This section provides information for various equipment when installed in the 801A PBX.

553-201-205
Issue 4, June 1979
801A PBX System Growth and Rearrangement
This section provides information and procedures required for the orderly growth of an existing 801A PBX System to include all available service features and optional equipment units. Growth is arranged from a single-cabinet installation of the earliest vintage equipment to a full 4-cabinet arrangement incorporating all current equipment, options, and circuits.

553-201-300
Issue 2, April 1974
801A PBX Attendant and Station Equipment Method of Operation
This section describes the methods of operating the attendant position and station equipment associated with the 801A PBX. The attendant position equipment will consist of 24- (short housing, non-DSS), 34- (short housing, DSS) and 54- (long housing, DSS) type telephone consoles equipped with rotary or TOUCH-TONE® dials. The station equipment may be any single line or multiline desk or wall-mounted telephone set.

 

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