Page 52 - 14th @ Irving Basis of Design (internal)

To follow is a description of how the telecommunications cabling shall be designed for the facility. In conformance with the above
referenced standard, the telecommunications cabling system shall be designed in a hierarchical star topology, in the following
manner:
• Horizontal cabling shall be home run from each telecommunications outlet to its respective TR.

• No intermediate termination or patching facilities will be allowed.
• Inter-floor backbone optical fiber cabling shall be home-run from the MTER to each respective TR.
• Inter-floor backbone copper cabling shall be home-run from the MTER to each respective TR.
• All cable is to be of PVC, LSZH or Plenum construction depending on local codes and standards.
Cable length limitations shall be as follows:
• Horizontal Cabling – 295 ft (90 m) from the workstation outlet to the termination point located within the TRs.

• Backbone Fiber Cabling - 300 m from the termination point in the TRs to the termination point within the MTER.

RISER BACKBONE CABLING
The fiber backbone cables, consisting of multiple-strand, single-mode (OS2) and multimode (OM4) optical fiber cables shall be
provided from the MTER to each of the TRs.
The primary backbone infrastructure shall have a minimum 24-strand, 50/125 multimode, OM4, fiber optic cable installed. This
strand count will provide for a home run communications solution as well as spare capacity for other systems or network topology
changes. This will allow for the implementation of future technologies and the capability to implement a 10Gbps Ethernet
backbone throughout the facility.
The primary backbone infrastructure shall also have a minimum 12-strand/core, single-mode, OS2, fiber optic cable installed. The
OS2 cable specification will allow for the deployment of new higher bandwidth technologies in the future as well as facilitating
baseband or broadband audio/visual communications. The individual strands of the fiber optic cables shall be terminated with the
relevant multimode or single-mode LC connectors or pigtails and housed in rack mounted fiber patch panels in the cabinets located
within the MTER and the TRs.

HORIZONTAL CABLING
The horizontal cables connecting the user device to the network at a minimum shall consist of the following Category 6A compliant
4-pair unshielded twisted pair (UTP) cables.
To create an applications independent cabling system, the following shall be the basis of design:

• Specific outlet locations will be defined as the design for each space is finalized.
• All 4-pair UTP cables shall be terminated at the outlet utilizing Category 6, 8-pin modular connectors with the 568B wiring
configuration.

• All 4-pair UTP cables are to be terminated within the MTER and TR cabinets and racks on rack mounted 24 or 48 port patch
panels utilizing the 568B wiring configuration. The termination method shall be identical for voice, data or video
connections.

14th @ IRVING WSP
Project No. B1809809.000
RAL COMPANIES & AFFILIATES Page 52