A typical volume of Bell System Practices from the 1970s. The Bell System Practices is a compilation of technical publications which describes the best methods of engineering, constructing, installing, and maintaining the telephone plant of the under direction of and.

Such Standards include National Grid's Electrical Overhead Standards, Telcordia Blue Book – Manual of Construction Procedures, the National Electric Safety Code (NESC) and OSHA requirements. B.) Pole Loading Analysis: Prior to overlashing, the Licensee shall perform a strand tension analysis and.

Logitech Web Camera Driver Android. The Bell System Practices cover everything from accounting and human resources procedures through complete technical descriptions of every product serviced by the Bell System, with details specific to the best way to wrap a wire around a screw. With sections regularly updated, printed and distributed, the BSPs were the key to the standardized service quality throughout the Bell System, and enabled employees, who had never met previously, to easily work with one another in the event of a service outage disaster or merely when relocating. Updates covered manufacturing changes phased into production during a product's lifetime of interest to the installer, including changed product features, internal component parts, available colors and installation procedures. Collectors use these documents to help date and restore vintage phones. Contents • • • • • Document organization [ ] Issuance of Bell System Practices within the Bell System started in the early 1930s, when they replaced a similar compendium, the AT&T Specifications.

Initially BSPs were identified by mixed alphanumeric sequence numbers designating a section and a specific document number within each section. The sections consisted of one letter and two digits, followed by a period character and a three-digit document number. The version of each document was indicated by an issue number. For example, the designation C34.175 Issue 1 identified a document entitled Station Dials - 2 and 4 Types - Maintenance. In the 1950s, the format of Practices designations was changed to a nine-digit numerical format, written in three groups of three digits.

The first three digits referred to the division, which indicated a broad subject area, such as subscriber sets or the. The next three digits indicated a specific subject area, such as specific type of equipment used within the major division subject.

The final three digits indicate the serial number of the document. The content could be general descriptive information, information on wiring and connections, test procedures, or piece-part replacement and repair information. The BSP documents were produced in primarily two formats, pages for use in office environments, and in a small, portable format (4' x 6 7/8') for use by installers on the job, carried in their service trucks. Starting in the 1970s the most frequently used BSPs were bundled in convenient handbooks each covering general subject matters, such as the Station Service Manual. The 9-digit format and numbering system was also used by and due to their provenance from the Bell System's manufacturing unit,.

Changes after divestiture [ ] After the of 1984 publication continued and the organization and maintenance of the set was later divided among the new companies. Further, because the Bell System no longer existed, the term could only be used by the new trademark owners, therefore the name changed as follows: • AT&T Practices covered most equipment topics that stayed with, which acquired the name AT&T. • Bellcore Recommendation covered network maintenance and design topics transferred to. • Bell Service Practices (and variations) referred to the plant and technical reference maintained by the various. • Lucent Technology Practices (and others) contained product lines taken over by manufacturers. And still publish practices using the 9-digit section numbering format. BSP nine-digit numerical index [ ] Section Reference Description GENERAL INFORMATION 000-000-000 General Information - Bell System Practices GENERAL INFORMATION 000-000-001 Master Alphabetical Index - All Divisions GENERAL INFORMATION 000-000-005 Master Numerical Index - All Divisions GENERAL INFORMATION 000-000-006 Index of Maintenance Practices Available in Handbook Size GENERAL INFORMATION 000-000-007 Master Alphabetical Index—Task Oriented Practices GENERAL INFORMATION 001-000-000 (Reserved for company-issued administrative practices.

The Number assignments are to be made locally.) GENERAL INFORMATION 002-000-000 (Reserved for company-issued administrative practices. Crocodile Biology Software Free Download. The Number assignments are to be made locally.) GENERAL INFORMATION 003-000-000 (Reserved for company-issued administrative practices. The Number assignments are to be made locally.) GENERAL INFORMATION 004-000-000 (Reserved for company-issued administrative practices.