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Cable Management. DATA CABLE IS SUSCEPTIBLE TO DAMAGE INSTALLING CAT5 CABLE DOES NOT GUARANTEE CAT5 PERFORMANCE HOW CABLE IS INSTALLED, NOT ONLY WHAT.

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Presentation on theme: "Cable Management. DATA CABLE IS SUSCEPTIBLE TO DAMAGE INSTALLING CAT5 CABLE DOES NOT GUARANTEE CAT5 PERFORMANCE HOW CABLE IS INSTALLED, NOT ONLY WHAT."— Presentation transcript:

1 Cable Management

2 DATA CABLE IS SUSCEPTIBLE TO DAMAGE INSTALLING CAT5 CABLE DOES NOT GUARANTEE CAT5 PERFORMANCE HOW CABLE IS INSTALLED, NOT ONLY WHAT TYPE OF CABLE IS INSTALLED

3 IF CABLE NOT INSTALLED PROPERLY PROBLEMS WITH –ATTENUATION –NEXT –PS NEXT –FEXT –PS FEXT

4 ANSI/TIA/EIA-568-A SPECIFIES –APPROPRIATE CABLE MANAGEMENT MUST BE USED TO ELIMINATE CABLE STRESS UNTWISTING OF PAIRS CABLE CINCHING TWISTING OF CABLE –CABLE MUST ALSO BE INSTALLED TO MANUFACTURES SPECIFICATIONS

5 SURFACE RACEWAY COVERED BY EIA/TIA-569 SECT.4.7 LISTED IN FOUR (4) SUBGROUPS : –SURFACE RACEWAY –RECESSED RACEWAY –MOLDING RACEWAY –MULTICHANNEL RACEWAY

6 AGAIN CABLE MUST –NOT BE PUT UNDER STRAIN –MAINTAIN A MINIMUM BEND RADIUS –BE SUPPORTED (REGARDLESS OF TYPE) –BE IN A SUITABLE ENVIRONMENT –PROTECTED FROM EMI (e.g. RFI) (COPPER ONLY) (BOTH COPPER & FIBRE)

7 DONTS NEVER PULL CABLE DIRECTLY ACROSS SUSPENDED CEILING TILE OR ACROSS FLORESCENT LIGHT BOXES (EMI) CABLE SHOULD NOT BE TIED TO CEILING GRIDWORK WIRES

8 WHAT NOT TO DO

9 MANAGEMENT TYPES THERE ARE VARIOUS DIFFERENT TYPES OF CABLE MANAGEMENT EACH GIVING DIFFERENT DEGREES AND TYPES OF PROTECTION

10 CABLE TIES USED TO SECURE CABLE TO TRAYS, TRUNKING ETC. NYLON, POLYPROPYLENE RELEASABLE, NON-RELEASABLE RIBBED INNER SURFACE TO SECURE CABLE

11

12 J HOOK BENEFITS DESIGNED FOR HIGH PERFORMANCE CABLE USED SPARINGLY OVER SHORT RUNS LIMITS THE NEED FOR CABLE TIES

13 J HOOKS SHOULD NOT BE USED AS A REPLACEMENT FOR CABLE TRAY

14 D-RINGS AS WITH J-HOOKS FOR SMALL BUNDLES OF CABLE USED SPARINGLY OVER SHORT RUNS

15 A B THE J-HOOKS ARE NOT ADEQUATE SUPPORT HERE THE CABLE IS UNDER STRESS AT POINTS A & B

16 CABLE LADDER GALVANISED STEEL OR PVC CABLE SECURED AT RUNGS

17 CABLE LADDER WITH LARGE BUNDLES CABLE UNDER PRESSURE AT RUNGS BECAUSE ITS WEIGHT IS NOT DISTRIBUTED ALONG A RUN

18 AS WITH CABLE LADDERS CABLE WEIGHT NOT EVENLY DISTRIBUTED. BASKET IS CHEAPER AND EASIER TO INSTALL THAN LADDER CABLE BASKETS

19 SNAKE TRAY SIMILAR TO CABLE BASKET FLEXIBLE EASIER TO INSTALL?

20 FLEXIBLE

21 CABLE TRAYS GALVANISED STEEL OR PVC VARIOUS DIMENSIONS MAY BE RESIZED WITH HACKSAW ANGULAR INSERTS AVAILABLE

22 CABLE TRAYS PERFORATED BOTTOM HORIZONTAL & BACKBONE FLEXIBLE EASY ACCESS TO CABLE CURVED TRAYS SUPPORTS WEIGHT OF CABLE ALONG WHOLE RUN

23 CONDUIT COMPLETELY ENCLOSED NO REMOVABLE LID GALVANISED STEEL PVC ACCESS TO CABLE LIMITED

24 CONDUIT EMI PROTECTION OUTLET DENSITIES LOW MEDIUM TO LONG TERM NEAT & AESTHETIC

25 TRUNKING SIMILAR TO CABLE TRAY BUT REMOVABLE LID (BETTER PROTECTION) (EMI & RODENT)

26 TRUNKING MORE DIFFICULT TO CUT (LID) NEATER

27 RACEWAYS SIMILAR TO TRUNKING VISUALLY PLEASING EASILY MODIFIED

28 POWER AND DATA CABLING

29 POWER AND DATA SEPARATION

30

31 MIN BEND RADIUS

32 A DROPOUT PIECE ENSURES MIN BEND RADIUS IS MAINTAINED PRESSURE AT RUNG A IS ALLEVIATED

33 CABLE TRAY ASSEMBLIES

34 What is EMI? ELECTRO MAGNETIC INTERFERENCE –DESCRIBES ALL KINDS OF ELECTRICAL AND MAGNETIC INTERFERENCE EMI IS A FIELD THAT EMANATES FROM LIVE CONDUCTORS –CAN TRAVEL LARGE DISTANCES AND INTERFERE WITH OTHER CONDUCTORS RFI (RADIO FREQUENCY INTERFERENCE) –98FM CAN INTERFERE WITH CONDUCTORS

35 Sources of EMI SOME LIVE CONDUCTORS CAN CAUSE MORE INTERFERENCE THAN OTHERS –DEPENDS ON SEVERAL FACTORS, SUCH AS THE AMOUNT OF CURRENT THEY ARE CARRYING AND THE AMOUNT OF SCREENING AROUND THE CONDUCTOR FLUORESCENT LIGHTING, SUBSTATIONS, MOTORS, SWITCH MODE POWER SUPPLIES

36 Vulnerability SOME CONDUCTORS CAN PICK UP INTERFERENCE MORE EASILY THAN OTHERS –UTP IS PARTICULARLY VULNERABLE TO PICKING UP EMI –SCREENED CONDUCTORS OR CONDUCTORS IN EARTHED ENCLOSURES ARE LESS VULNERABLE BUT HAVE TO BE CAREFUL –FIBRE IS IMMUNE TO EMI

37 EN MAKES THE FOLLOWING RECOMMENDATIONS

38 En EUROPEAN STANDARD SUBMITTED TO CENELEC THREE PARTS –SPECIFICATION –IMPLEMENTATION –OPERATIONS OF INFORMATION TECHNOLOGY CABLING, BOTH COPPER & FIBRE }

39

40 EMI PERFORMANCE DIFFERS WITH THE DIFFERENT TRAY TYPES

41 THE BUNDLE HEIGHT INTO THE CABLE TRAY SHALL BE LOWER THAN THE SIDE WALLS AS ILLUSTRATED ABOVE OVERLAPPING LIDS PROVIDE MORE PROTECTION DEEP CONDUITS ARE PREFERRED

42 CABLE SUPPORT PROPER CAT 5 PERFORMANCE WILL ONLY BE ACHIEVED WITH CAREFUL CABLE INSTALLATION AND ADEQUATE SUPPORT MAKE SURE YOUR INSTALLATIONS ARE NOT PART OF THE 80 % THAT WILL NOT SUPPORT TRANSMISSION IN THE FUTURE OF 100 Mbps AND BEYOND


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