Intelligent Cable Management Systems

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Intelligent Cable Management

Systems

Bringing Practical Application

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Why Cable Management Matters

• Performance

• Cooling and air-handling

• Maintenance

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ANSI/TIA 569*

ANSI/TIA 569

• Telecommunication Spacesp

– Entrance Facilities (EF)

– Equipment Rooms (ER)q p ( )

– Telecommunications Rooms (TR)

– Telecommunication Enclosures (TE)Telecommunication Enclosures (TE)

• Telecommunications Pathways Ceiling spaces – Ceiling spaces – Under Floor F it th – Furniture pathways

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Pathways and Cable Supports

• Attached to support weight pp g and pulling

• Installed with clear verticalInstalled with clear vertical space above the ceiling tiles and t-bars.

and t bars.

• Should not rest on panels, wires power or light fixtures wires, power or light fixtures

• Use properly sizes for cable

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J Hook Cable Support

• Spacing Intervals for effective p g support and distribution.

• Cable Sag between 4 and 12 in.Cable Sag between 4 and 12 in.

• Use independent support rods or wire to mount

wire to mount

• For large bundles – split the b ndle or se a cable tra

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Cable Trays and Ladder Racks

• Design for 25% fill ratiog

• Maximum of 50% fill and up to 6 in inside depth.

6 in inside depth.

• Utilize Retaining post to contain cables

contain cables

• Protect the cable from treaded rod s pports

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Conduit Guidelines

• Do Not exceed 100ft between pull pointsp p

• Flexible Metal Conduit is not recommended

recommended

• Maximum Fill Ratio:

N b f C bl M i Fill (%)

Maximum Fill Ratio

Number of Cables Maximum Fill (%)

1 53%

2 31%

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Optical Fiber Raceway

• Use innerduct or raceway to y ensure protection

• Must be free of sharp bendsMust be free of sharp bends and turns

• The Raceway must have the

• The Raceway must have the proper fire rating

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Fire Stopping

• Two Categoriesg – Mechanical – Non-Mechanical  Putties  Caulks  Pre-Manufactured Pillow

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Cable Handling

• Physical damage to the cable will y g cause degradation in performance

• Condition the cable to preventCondition the cable to prevent cracking

• No kink twist snag or not while

• No kink, twist, snag or not while pulling.

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Cable Pulling

• Watch edges of conduit, tray and sleevesg y

• Steady as it goes – don’t be a jerk

• Maximum Pulling Tension:

Cable Type Maximum Pull Strength

4 Pair 100Ω U/UTP 25 lbf (111 N) 4 Pair 100Ω U/UTP 25 lbf (111 N) Multipair 100Ω U/UTP *

4 Pair 100Ω shielded *

Premise Distribution Fibere se s bu o be 50 lbf (222 N)50 b ( ) OSP Optical Fiber 600 lbf (2.65 kN)*

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Cable Runs

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Bend Radius

• Allowable varies with cable type and ODyp

Cable Type Bend Radius No-Load Load

4 Pair 100Ω U/UTP 4 - -M lti i 100Ω U/UTP 10

Multipair 100Ω U/UTP 10 - -4 Pair 100Ω shielded 8 - -Premise Distribution Fiber (1-4 strands) - 1” 2” P i Di t ib ti Fib (5 t d ) 10 15 Premise Distribution Fiber (5+ strands) - 10 15 OSP Optical Fiber - 10 20

Note: In all cases follow manufactures recommended instructions.

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Micro- and Macro-Bending

• Violating the bend radius causes Macro-g

• Excessive pull Tension or tight tie wraps cause

Micro-cause Micro

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Cable Bundles

• Cable stress should be minimized

• Do not over cinch bundles

• Recommend Velcro style wraps

• Stacking bundles can cause crush

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Horizontal Cable Managers

• Minimize damageg

• Facilitate moves, adds and changes

changes

• Improve performance A l d P t h P l

• Angled Patch Panels address some need

• Rear Managers are also needed

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Vertical Cable Managers

• Must be appropriately pp p y sized

• Symmetrical DistributionSymmetrical Distribution

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Cable Slack

• Slack loops or service loops help to p p p accommodate future

• Recommended amount of cable slack:Recommended amount of cable slack:

– TR or TE is 10ft (3m)

– Ceiling about the TO is 3 28 ft (1 m)

– Ceiling about the TO is 3.28 ft (1 m)

• The recommended slack after termination

1 ft ( 3 ) f b l d t i t d i

– 1 ft (.3m) for balanced twisted pair

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Important Considerations

• Avoid over-bundling the cables or g placing multiple bundles on top of each other

• Avoid blocking access to other equipment such as power strip. equipment such as power strip.

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Important Considerations

• Keep all cable runs under 90 p percent of the maximum

distance supported..pp

• For backbone and horizontal

runs, install additional cables as runs, install additional cables as spares.

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Important Considerations

• Don’t stress the cable by:y

– apply additional twist

– Pulling or stretching beyond load g g y rating

– Bending beyond the bend radiusg y

– Creating tension in suspended runs

– Stapling or applying pressure with p g pp y g p cable ties

• Avoid pipes and holes – limitingAvoid pipes and holes limiting future runs

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Best Practices

• Label cables with their destination at every y termination point

• Test every cable as it is installed andTest every cable as it is installed and terminated.

• Do not route cables in the way of fans or

• Do not route cables in the way of fans or air flow

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Best Practices cont

Best Practices cont.

• Allocate a port in the patch p p panel for each horizontal run

• Include sufficient vertical andInclude sufficient vertical and horizontal managers in the

design. design.

• Use angled patch panels in high-density areas

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Unique Solutions

• Using fiber cable assemblies that have a g single connector at one end and multiple duplex break out at the other end.p

• Corner bend radius

• Wire tray waterfall

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Summary

• Cabling represents <10% of the overall g p data center investment

• Outlives most of the network componentsOutlives most of the network components

• Most difficult to replace

R i tilit f t d f t

• Requires versatility for current and future needs

• Since each environment is different, there is no single solution that will meet all your cable management needs.

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Intelligent Cable Management Systems