HORIZONTAL SUBSYSTEM

CABLING SYSTEM

Horizontal Subsystem

• The Horizontal cabling subsystem is the part of the Signamax Cabling System that extends from the Work Area Telecommunications Outlet to the Horizontal Cross-connect in the Telecommunications Room

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Horizontal Cabling Subsystems Work Area

Cabling

Terminal Equipment

Horizontal Subsystem

• The Horizontal cabling subsystem consists of

– Horizontal subsystem cables

– Telecommunications Outlet in the Work Area

– connecting hardware at the Horizontal Cross-connect (interconnect or cross-connect)

– any cross-connections to application specific equipment at the Horizontal Cross-connect

– Consolidation Point (optional)

– Multi-user Telecommunications Outlet (optional)

Topology

1 The Horizontal cabling subsystem shall have a star topology.

All Work Area Telecommunications Outlets must be connected with the Horizontal Cross-connect in the Telecommunications Room by means of a cable

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Topology

1It is recommended that the

Telecommunications Room

be located on the same floor

as the Work Area it serves

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Topology

2 Work Areas shall be served

by the Horizontal Cross-

connect located in the

Telecommunications Room

on the same or adjacent

floor

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Building B

Topology

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Building A

Building B

Horizontal Cross-connect

• Two ways of connecting active equipment to the Horizontal cabling subsystem and one method for passive connection between the Horizontal and Backbone subsystems are used in the Horizontal Cross-connect:

– Interconnection

and

– Cross-connection

Distances

• The Horizontal subsystem distance is the cable length from the mechanical termination of the media at the Horizontal Cross-connect in the Telecommunications Room to the Telecommunications Outlet in the Work Area

Distances

14 Maximum cable length (distance) in the Horizontal cabling subsystem shall be no more than 90 m (295 ft) regardless of the type of transmission media

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90 m (295 ft)

Distances

15 The total length of twisted-pair equipment and patch cords used in the Horizontal Cross-connect to make cross-connections, interconnections, and connection of active equipment shall not be more than

• 5 m (16 ft) – for 24-AWG cords

• 4 m (13 ft) – for 26-AWG cords

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Distances

16 The total length of optical fiber equipment and patch cords used in the Horizontal Cross-connect to make cross-connections, interconnections, and connection of active equipment shall be based on the maximum allowable distance (including the Horizontal subsystem cable and Work Area equipment cable) limited by the specifications of anticipated telecommunications applications

Distances

17 The length of the twisted-pair equipment cord used to connect active equipment in the Work Area to the Telecommunications Outlet shall not be more than

• 5 m (16 ft) – for 24-AWG cords

• 4 m (13 ft) – for 26-AWG cords

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5 m (16 ft)

Distances

18 The length of the optical fiber equipment cord used to connect active equipment in the Work Area to the Telecommunications Outlet shall be based on the maximum allowable distance (including the Horizontal subsystem cable, equipment and patch cords used in the Horizontal Cross-connect to make cross-connections, interconnections, and connection of active equipment) limited by the specifications of anticipated telecommunications applications

Distances

19 The total length of the twisted-pair Horizontal subsystem cable, Work Area equipment cord, equipment and patch cords used in the Horizontal Cross-connect shall not be more than 100 m (328 ft)

20 The total length of the optical fiber Horizontal subsystem cable, Work Area equipment cord, equipment and patch cords used in the Horizontal Cross-connect shall be limited by the specifications of anticipated telecommunications applications

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A + B + C + D 100 m (328 ft)

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A + B + C 100 m (328 ft)

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Transmission Media

• The following types of transmission media are allowed in the Horizontal cabling subsystem of the Signamax Cabling System:

– category 5e, 6, and 6a four-pair 100-Ohm unscreened twisted-pair cables

– category 5e, 6, and 6a four-pair 100-Ohm screened twisted-pair cables

– 62.5/125 µm optical fiber multimode cables (OM1)

– 50/125 µm optical fiber multimode cables (OM2, OM3, OM4)

– 9/125 µm optical fiber singlemode cables (OS1, OS2)

Configuration

21 All Signamax Cabling System Work Areas shall be built based on at least two Telecommunications Outlets serviced by two Horizontal cabling subsystem cables:

Outlet/connector 1:

• Connecting hardware, 4-pair twisted-pair cable with category 5e, 6 or 6A transmission performance

Outlet/connector 2:

• Connecting hardware, 4-pair twisted-pair cable with category 5е, 6 or 6A transmission performance, or

• Multimode optical fiber connecting hardware, 2-fiber cable, or

• Singlemode connecting hardware, 2-fiber cable

OPEN OFFICE CABLING

MuTOA

• Example of Multiuser Telecommunications Outlet Assembly application:

MuTOA

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Open Office space

Consolidation Point

• Example of Consolidation Point application:

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Open Office space

TELECOMMUNICATIONSPATHWAYS AND SPACES

Pathways and Spaces

• Horizontal subsystem pathways are facilities forthe installation of telecommunications cable fromthe Telecommunications Room to the Work Area Telecommunications Outlet.Horizontal pathways encompass:

– Underfloor pathways

– Access floor

– Conduit

– Tray and wireway

– Ceiling pathways

– Perimeter pathways

– Furniture pathways

Pathways and Spaces

47 All pathways where the Horizontal subsystem cables are installed shall be intended for this purpose and shall not share their space with other services ofthe building

49 The Horizontal distribution system pathways shall be designed and installed in compliance with local and federal construction regulations and electrical safety codes