SAES-T-914 pDF - Communications Distribution Cable - PDFYAR - Engineering Notes, Documents & Lectures

This article is about SAES-T-914 which is about Communications Feeder Cable and download SAES-T-914 PDF for telecommunication and electrical engineers, supervisors and project managers, telecom QCs, telecom QC Supervisors. This is saudi aramco standards of Telecommunication Engineering based on international codes and standards and useful for telecom and electronics engineering knowledge to get job as engineers, QC Supervisors and QC managers, Engineering managers and technicians.

SAES-T-914 pDF Download

SAES-T-914

SAES-T-914 pDF Download

This SAES-T-914 standard prescribes mandatory requirements governing the design, extension and placement of telecommunication outside plant distribution cable.

Industry Codes and Standards for SAES-T-914

The industry codes and standards relevant to SAES-T-914 (telecommunication outside plant distribution cable) are:

Building Industry Consulting Service International (BICSI)
- BICSI Chapter 2: Telecommunications Distribution Methods Manual
- BICSI OSP Chptr 3&9: Customer-Owned Outside Plant Design Manual
Telecommunications Industry Association (TIA)
- TIA-758-A: Customer-owned Outside Plant Telecommunications Infrastructure Standard
Rural Electrification Administration (REA)
- REA PE-39: Specification for Filled Telephone Cables (Solid PIC)

These codes and standards provide guidelines and specifications for the design, extension, and placement of telecommunication outside plant distribution cables. They cover various aspects related to telecommunications infrastructure, distribution methods, customer-owned outside plant design, and cable specifications.

design

The design requirements for distribution cable in accordance with SAES-T-914 are as follows:

5.1 Distribution Cable Design

5.1.1 Recommended Design

The FAP (Fiber Access Point) design should be the first design considered for new areas that qualify.
The Conventional Distribution design (CD) should be implemented for applications that do not meet FAP or RDAP (Residential Distribution Access Point) parameters.

5.1.2 Cable Systems

Design each feeder cable and distribution cable as a component part of the total system, considering the overall network requirements rather than individual units.

5.1.3 Distribution Cable Size
5.1.3.1 Size facility area distribution cables based on:

A minimum of two (2) pairs per living unit.
Estimation of service demand, typically one cable pair per nine (9) square meters of usable office space.

5.1.3.2 Design rules for loop transmission performance to achieve acceptable transmission in the distribution network:

Ensure statistically distributed loop transmission loss.
Ensure no single loop in the distribution network exceeds signaling range or transmission objectives for the intended service.

5.1.4 Distribution Cable Gauge/Loading

Gauge distribution cables using Resistance Engineering to Measured Limits (REML) transmission design procedures.
Generally, no loading is required within the first 3,658 meters from the central office or remote terminal.
If loading is required on customer service within the facility area, ensure compatibility with the loading arrangement used in the feeder cable complement.
Special service lines requiring loading, such as PABX trunks or data circuits, should be given individual attention.
For administrative purposes, such circuits should be contained within one or more 25-pair cable binder groups in the feeder cable. In the distribution cable, if loading is required, load the entire 25-pair complement.

These design requirements ensure proper sizing, transmission performance, and compatibility of distribution cables within the overall telecommunication network.

Here are the additional design requirements related to distribution cable in SAES-T-914:

5.1.5 Buried Distribution Plant

All direct buried distribution cables must be of the filled core type.
Physical and electrical parameters for buried cables can be found in REA PE-39.
Buried distribution cables should be placed along streets, alleys, and highways.
Acceptable methods for connecting end-user services to the distribution cable are:

Terminals in handholes
Buried terminal housings
Pre-assembled buried cable (PRETERM)

Depending on the geography and layout, designers can choose one or a hybrid of the following methods:

Placing cable/terminals on one side only with drops crossing the street.
Placing cable/terminals along both sides.
Placing cable along one side with cable/terminals lateral crossings for opposite side drop access.

5.1.6 Aerial Cable

Aerial cable construction should not be used except for temporary services.

5.1.7 Block Cable

Block cable on rear walls of buildings or on poles should not be used except for temporary services.

These requirements provide guidelines for the use of buried distribution cables, restriction on aerial cable use, and avoidance of block cable in permanent installations.

5.2 Digital Connectivity Capability (DCC)

Here are the additional design requirements related to Digital Connectivity Capability (DCC) in SAES-T-914:

5.2.1 Remove all Analog Carriers Working within the Facility Area

Analog carriers within the same sheath as feeder or distribution components serving adjacent facility areas should be eliminated using compatible facilities.

5.2.2 Bridge Tap Limitations

Cable pairs designated for use as digital connectivity pairs must be dedicated and multiple-free, specifically assigned to an addressable location.
All dedicated pairs should be terminated and cut dead at the serving terminal on the field side.

5.2.3 Sheath Integrity

Sheath integrity of all distribution cables should be maintained to prevent inadvertent disruption by workers.
Existing ready access terminals should be replaced with sealed fixed count terminals.
Ready access splice cases should be replaced with sealed cases.

5.2.4 Loop Treatment

Existing loop treatment, such as load coils and build-out capacitors, must be removed from distribution cables on loops within 12,000 feet (3650 meters) of the central office and remote terminal.

5.2.5 Protection Bonding and Grounding

The Design Engineer should review the existing distribution plant in areas where construction activities will occur, ensuring that cable electrical protection devices, as well as bonding and grounding of cable sheaths, comply with current Saudi Aramco Standards.
This review includes physical inspection and testing of made ground electrodes.
Non-complying items, including electrical protection devices, grounding, and bonding systems, must be corrected. This requirement applies to all projects and work orders.

5.2.6 Party Line Grouping

Each station on an existing party line should be provided with its own cable pair when work is done on the distribution cable legs.
This allows grouping at the central office main frame.
Alternatively, private line service can be provided if the necessary equipment is available.

These requirements aim to ensure the transition from analog to digital connectivity, maintain sheath integrity, remove unnecessary loop treatments, ensure proper protection bonding and grounding, and facilitate efficient party line grouping or provision of private line service.

FAQs about SAES-T-914 pDF Download

Q1: What should be done with analog carriers within the facility area?

A: Analog carriers within the same sheath as feeder or distribution components serving adjacent facility areas should be eliminated using compatible facilities.

Q2: What are the limitations for bridge taps in digital connectivity pairs?

A: Cable pairs designated for use as digital connectivity pairs must be dedicated and multiple-free, specifically assigned to an addressable location. All dedicated pairs should be terminated and cut dead at the serving terminal on the field side.

Q3: How should sheath integrity be maintained in distribution cables?

A: Sheath integrity of all distribution cables should be maintained to prevent inadvertent disruption by workers. Existing ready access terminals should be replaced with sealed fixed count terminals, and ready access splice cases should be replaced with sealed cases.

Q4: What should be done with existing loop treatments?

A: Existing loop treatments, such as load coils and build-out capacitors, must be removed from distribution cables on loops within 12,000 feet (3650 meters) of the central office and remote terminal.

Q5: What is the requirement for protection bonding and grounding?

A: The existing distribution plant should be reviewed in areas where construction activities will occur to ensure compliance with current Saudi Aramco Standards for cable electrical protection devices, as well as bonding and grounding of cable sheaths. Non-complying items must be corrected.

Q6: What should be done when working on distribution cable legs of an existing party line?

A: Each station on an existing party line should be provided with its own cable pair when work is done on the distribution cable legs. This allows grouping at the central office main frame. Alternatively, private line service can be provided if the necessary equipment is available.

SAES-T-914 pDF – Communications Distribution Cable

SAES-T-914 pDF Download

Industry Codes and Standards for SAES-T-914

design

5.2 Digital Connectivity Capability (DCC)

FAQs about SAES-T-914 pDF Download

Q1: What should be done with analog carriers within the facility area?

Q2: What are the limitations for bridge taps in digital connectivity pairs?

Q3: How should sheath integrity be maintained in distribution cables?

Q4: What should be done with existing loop treatments?

Q5: What is the requirement for protection bonding and grounding?

Q6: What should be done when working on distribution cable legs of an existing party line?

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