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ANSI/TIA/EIA 569-A
Commercial Building Standard for
Telecommunication Pathways and Spaces

Disclaimer
This information is collected and composed by QUANG DUNG TECHNOLOGY from www.Cablingdb.com. All
information is copyrighted by Cablingdb.com.
Standards Preservation
This section is not part of the original standards documentation. The purpose of this document is to provide
an easy tounderstand, condensed version of the original document. A basic level of telecommunications is
assumed. For further information on terms and definitions see our Glossary of Terms section. Whether you
are renovating your existing cable plant or installing a new one, Cablingdb.com urges you to investigate a
standards based solution. This document is not meant to replace the original standardsdeveloped by the
various standards bodies and we urge you to purchase the original documents through www.tiaonline.com.
A U T H O R I Z E D & E X C L U S I V E D I S T R I B U T O R

Table of Contents
Access Floors
Cable Tray Wireways
Ceiling Pathways
Conduit
Entrance Facilities
Equipment Room
Intrabuilding Pathways
Miscellaneous
Perimeter Pathways
Telecommunications Room
UnderfloorPathways
Work Area
Addendums
Addendum 1 Perimeter Pathways
Addendum 2 Furniture
Addendum 3 Access Floors
Addendum 4 Poke Through Devices
Addendum 5 In Floor Systems
Addendum 6 Multi Tenant Pathways
Addendum 7 Cable Trays & Wireways

ACCESS FLOOR
All fire-stop assemblies shall retain their integrity if penetrated by cables wires etc.
Access Floor Definition A flooring system thatconsists of a raised floor, supported
by a system of vertical and horizontal supports and removable tiles. The tiles allow
access to the space under the flooring system for the storage and routing of cables.
There is a variety of support equipment that may be located below the flooring such
as raceway and tray for the placement of cables.
Types
Stringered
Stringers shall be fastened to thepedestal head.
definition Access floor (raised) systems which employ a lateral bracing unit between
the pedestal supports. Stringers allow frequent removal of panels by providing
additional support.
Free standing
Shall be restricted to finished floor heights of 300mm.
definition A raised flooring system which employs pedestal supports as the only form
of support. Free standing flooring systemsare restricted to finished heights of no
more than 150mm (6").
Cornerlock
Shall have panels fastened to the pedestals at each corner.
Loading Performance and Testing
Loading performance parameters can be found in Annex B of the original standards
document.
Panels and understructure shall be tested and meet the requirements of Ceilings and
Interior Systems Construction Association (CISCA)test methods (Ref D.12)
Fire Rating
• Floor panels (not including covering) shall have a Class A flame spread rating.
• Panels shall be made of non combustible materials when cabling is not
in conduit.
• Cutting of the panels shall not affect the flame spread rating.
Building Structure
Depressed Slab
definition A construction technique where the initial floor level is lower than thefinished floor. The depth of the depression is equal to the finished level of the floor.
Normal Slab
Building codes shall be followed for both ramp and step assemblies.
Design Guidelines and Procedures for Access Flooring
Work Areas
Penetrations through the floor shall:
• Not be placed in a way so as to create hazards to the occupants.

• Take into consideration the type and number of workareas and may be
located anywhere on the access floor.
Specific Design Information
Minimum Height
General office 150mm (6”)
Telecommunications room 300mm (12”) not less than 150mm (6”)
Cable management
Shall be provided by one, or all of:
• dedicated routes
• zone distribution system
• raceway primary distribution
• cable tray
Installation
Layout
Floor layout shall be determined prior...