Page 51 - 14th @ Irving Basis of Design (internal)

8.9 TELECOMMUNICATIONS SYSTEM

Conduits, cable tray and other fixed containment that support data/telecommunications cabling within the facility are a key
component in the telecommunications infrastructure. Proper sizing, placement, routing and integration with other routed services
will ensure connectivity and flexibility, which becomes a benchmark in the determination of a truly successful infrastructure.
Design parameters established herein follow standards established in the TIA standards and related documents. These standards
have been established in reference to the dynamic, changing nature of telecommunications cabling systems and provide guidelines
to enable maximum cabling flexibility to accommodate change over time.

8.9.1 BACKBONE CABLING PATHWAYS, VERTICAL RISERS

The backbone optical fiber cabling shall follow vertically aligned riser routes with the TR stack (primary) and a dedicated riser
shaft (secondary) to carry the backbone cables to their respective floors for termination. These pathways will accommodate the
vertical cable distribution of all SCS cabling, both backbone and any inter-floor horizontal cabling which may be required.
There will be vertically aligned riser pathways extending between the floors. These pathways will consist of conduit and
sleeves/cable tray connecting the vertically stacked TR’s and riser shaft.

For security purposes access into the riser pathway shall be controlled and managed by the building maintenance staff.

8.9.2 HORIZONTAL CABLING PATHWAYS
The Structured Communications System (SCS) cable distribution from the TRs to each outlet position will require a flexible
pathway of appropriate dimension to accommodate day one and future cabling installations to the SCS outlets. Also, ease of
installation and cable maintenance are important in the selection of the appropriate pathway.

The horizontal pathway will be provided within accessible ceiling areas wherever possible. The provision of a properly sized cable
tray will provide flexibility in installing, modifying, adding or deleting any portion of the cable plant.
All pathway routes shall be coordinated with other building services (electrical, mechanical, etc.) to assure proper clearance and
access, as well as to avoid impact from heat, electro-magnetic interference or leakage from other building services.
The pathway system shall be coordinated with the electrical distribution system in order to maintain a minimum 12 in (300 mm)
separation between parallel runs of telecommunications and electrical cabling. Where 12 in (300 mm) separation is not possible,
the telecommunications cabling shall be separated from electrical cables by a ferrous material to minimize interference. Where
electrical and telecommunications cabling cross, it shall be at right angles only.

8.9.3 SCS CABLE TYPES
The SCS cabling infrastructure has been defined above as the cabling system that interconnects all technology spaces in the facility,
from the TSER, through the Main Technology Equipment Room, on-floor Telecommunications Rooms, and ultimately out to the
user outlets and subsequently to network-connected devices.
In order to attain this definition, proper design and engineering must be done to ensure that the SCS provides an “applications
independent” cabling system, allowing any technology to be utilized over the cabling infrastructure. Design parameters established
herein and in the future follow standards established in the TIA 568 C Commercial Building Standard for Generic Cabling
Requirements document. These standards have been established by a decision team, which includes cabling and
telecommunications equipment manufacturers from the largest and best-known companies in the industry. This inherently gives
endorsement to the design parameters set forth herein.

14th @ IRVING WSP
Project No. B1809809.000
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