SIGNAMAX CABLING SYSTEM
Signamax Cabling System The Signamax Cabling System Design Principles and Installation Practices are based on the requirements and recommendations of the international and national standards for telecommunications cabling within a commercial building and between buildings in a campus environment These rules specify cabling topology, transmission media, cabling distances, and telecommunications outlet configurations
Signamax Cabling System Rules given by the Manual are intended to implement a telecommunications cabling designed to support a wide range of different commercial building sites and applications (e.g., voice, data, text, video, and image) Typically, this range includes sites with a geographical extent from 3,000 m (about 10,000 ft), up to 1,000,000 m 2 (about 10,000,000 ft 2 ) of office space, and with a population of up to 50,000 individual users
Signamax Cabling System Work Area (WA) Telecommunications Outlet (TO) BMS field devices Video surveillance system devices Cabling system transmission media Equipment and patch cords Cross-connect connecting hardware Cross-connect
Cabling Structure Generic telecommunications cabling system structure includes the following subsystems and additional elements: –Horizontal subsystem –Backbone subsystem –Work Area –Telecommunications Room –Equipment Room –Entrance Facility –Administration
Functional elements Generic telecommunications cabling system consists of the following functional elements: –Main Cross-connect (MC) –Level I Backbone subsystem cable –Intermediate Cross-connect (IC) –Level II Backbone subsystem cable –Horizontal Cross-connect (HC) –Horizontal subsystem cable –Consolidation Point (CP) –Multiuser Telecommunications Outlet Assembly (MuTOA or MuTO) –Telecommunications Outlet (TO) Groups of these functional elements are connected together to form cabling subsystems
INTERBUILDING (CAMPUS) BACKBONE SUBSYSTEM BUILDING B IC ER/EF HC TR HC TR TO WA HC TR IC ER/EF HC TR HC TR TO WA BUILDING C IC ER/EF HC TR HC TR HC TR TO WA BUILDING D HC TR IC ER/EF HC TR HC TR TO WA BUILDING E HC TR TO WA INTRABUILDING BACKBONE SUBSYSTEM HORIZONTAL SUBSYSTEM SERVICE ENTRANCE LEVEL II BUILDING A IC ER LEVEL I HC TR HC TR DP EF MC ER/EF ER Cabling Structure
Structure alphabet soup MC – Main Cross-connect IC – Intermediate Cross-connect HC – Horizontal Cross-connect TO – Telecommunications Outlet/connector MuTOA – Multi-user Telecommunications Outlet Assembly WA – Work Area TR – Telecommunications Room ER – Equipment Room EF – Entrance Facility CP – Consolidation Point DP – Demarcation Point |X| – Cross-connect I – Level I Backbone subsystem II – Level II Backbone subsystem
Subsystems Signamax Cabling System schemes consist of three cabling subsystems: –Level I Backbone –Level II Backbone –Horizontal cabling The cabling subsystems are connected together to create a generic cabling structure as shown on the next slide. The cross-connects provide the means to configure the cabling to support different topologies like bus, star and ring
Subsystems
Level I Backbone Subsystem The level I Backbone cabling subsystem extends from the Main Cross-connect to the Intermediate Cross-connect(s) usually located in separate buildings
Level I Backbone Subsystem The level I Backbone cabling subsystem includes –the Level I Backbone cables; –jumpers and patch cords in the Main Cross-connect; –the connecting hardware on which the Level I Backbone cables are terminated (at both the Main and Intermediate Cross- connects)
Level I Backbone Subsystem Although equipment cables are included in a Channel, they are not considered part of the cabling subsystem because they are application specific
Level I Backbone Subsystem Where the Intermediate Cross-connect does not exist, the Level I Backbone cabling subsystem extends from the Main Cross-connect to the Horizontal Cross-connect
Level I Backbone Subsystem The Level I Backbone cable may also interconnect Intermediate Cross-connects. Such connections shall be in addition to those required for the basic hierarchical topology
Level II Backbone Subsystem The Level II Backbone cabling subsystem extends from Intermediate Cross-connect(s) to the Horizontal Cross- connect(s)
Level II Backbone Subsystem The Level II Backbone cabling subsystem includes –the Level II Backbone cables; –jumpers and patch cords in the Intermediate Cross-connect; –the connecting hardware on which the Level II Backbone cables are terminated (at both the Intermediate and Horizontal Cross- connects)
Level II Backbone Subsystem Although equipment cables are included in a Channel, they are not considered part of the cabling subsystem because they are application specific
Level II Backbone Subsystem The Level II Backbone cable may also interconnect Horizontal Cross-connects However, such connections shall be for back-up and in addition to those required for the basic hierarchical topology
Horizontal Subsystem The Horizontal cabling subsystem extends from a Horizontal Cross-connect to the Telecommunications Outlet(s) connected to it
Horizontal Subsystem The Horizontal cabling subsystem includes –the Horizontal subsystem cables –any cross-connections to application specific equipment at Horizontal Cross-connect –the mechanical termination of the Horizontal subsystem cables at the Horizontal Cross-connect including the connecting hardware –the mechanical termination of the Horizontal subsystem cables at the Telecommunications Outlet –a Consolidation Point (optional)
Horizontal Subsystem Although Work Area cords and equipment cables are included in a Channel they are not part of the cabling subsystem because they are application specific
Horizontal Subsystem Horizontal cables shall be continuous from the Horizontal Cross-connect to the Telecommunications Outlets unless a Consolidation Point is installed
Interconnection of Subsystems Hierarchical structure
Interconnection of Subsystems Centralized structure
Interconnection of Subsystems Cross-connects shall be located in –Telecommunications Rooms –Equipment Rooms –Entrance Facilities
Interfaces
Channel & Permanent Link The Signamax Cabling System consist of Channels and Permanent Links. The transmission performance of structured cabling between specific interfaces is detailed in terms of the Channel and the Permanent Link
Channel & Permanent Link The Channel is the transmission path between active equipment and the terminal equipment. For the purposes of testing, the Channel does not include the mated connection at the IT equipment.
Channel & Permanent Link The Permanent Link is the transmission path between the mated connectors located at the ends of the installed cable in a cabling subsystem. The Permanent Link contains the mated connections located at the ends of the installed cabling
Dimensioning & configuring The number and type of subsystems that are part of a generic cabling implementation depends on the geography and size of the campus or building, as well as on the user strategy. Generally there would be –one Main Cross-connect per campus –one Intermediate Cross-connect per building –one Horizontal Cross-connect per floor If the premises have only a single building, which is small enough to be served by a single Horizontal Cross-connect, a level I Backbone cabling subsystem is not required
Dimensioning & configuring Cross-connects should be located such that the resulting cable lengths comply with the Channel performance requirements set forth in the –“ HORIZONTAL SUBSYSTEM ” and –“ BACKBONE SUBSYSTEM ” sections The maximum Channel lengths shown on the next slide should be observed
Dimensioning & configuring Maximum allowable Channel lengths in the cabling subsystems: The distances given are for the total backbone Channel length, including backbone cable, patch cords or jumpers, and equipment cable Channel Type Distance, m (ft) Horizontal subsystem (HC – TO)100 (328) Level II Backbone subsystem (IC – HC)300 (984) Level I + II Backbone subsystem (MC – HC) 2,000 (6,562) 5,000 (16,404)
Dimensioning & configuring Not all applications are supported over the maximum lengths shown in the previous table using a single cable type The maximum supportable distances are application and media dependent To determine the maximum acceptable Channel length refer to standards for specific telecommunications applications Installer companies are advised to consult the specific standards associated with the planned service, or equipment manufacturers to determine the suitability of the cabling described herein for specific applications
Dimensioning & configuring There should be at least one Horizontal Cross-connect for every 1,000 m 2 (10,000 ft 2 ) of floor space reserved for offices If a floor area is over 1,000 m 2 (10,000 ft 2 ), additional Horizontal Cross-connects may be required to provide more effective service to the Work Area
Dimensioning & configuring A minimum of one Horizontal Cross-connect should be provided for every floor. If a floor contains few people (e.g. a lobby), this floor may be served from the Horizontal Cross- connect located on an adjacent floor. If a floor is sparsely populated (e.g. a lobby), it is permissible to serve this floor from the Horizontal Cross-connects located on an adjacent floor
Dimensioning & configuring The functions of multiple cross-connects may be combined
Dimensioning & configuring In some conditions, for example for reasons of security or reliability, redundancy may be built into a cabling design. This might form the basis for the design of generic cabling for a building, providing some protection against such hazards as fire damage or the failure of the public network feeder cable