MicrowaveradiorelaylinkZENITH80
28/52 1.2
3.10 INSTALLATIONOFINTERCONNECTCABLE
We recommend using the shielded cable for outside use by ACOME, type Cat 7 S‐STP, or the type
Telco100W4*ISTPfromBeldenWire,withfourpairsofconductorsfortheconnectionoftheterminalbox
ALSxandthestationZENITH80.Thecableisledintothe
linkboxthroughasealinggrommetthatprevents
penetration of climatic humidity from the surroundings and shows sufficient shielding necessary for
keepingofelectromagneticcompatibilityofthewholedeviceatthesametime.
The connection cable must not be mechanically loaded. It has to be protected by a flexible electric
installation
pipe, especially in the outside environment, and attached so the mechanical loading is out of
thequestion.Werecommendusingtheelectricinsta llationpipetypeHFX16byDietzelUnivolt.
It is necessary to keep a minimum curvature during installation and attachment of the cable. The
criticalspot,especiallyfor
verticalpolarization,isattheoutletoftheconnectioncablefromODU.
AlcomacompletestheradiorelaysystemdeliveriesbythemodifiedcableofthetypeCat7S‐STPfrom
ACOME. Additional outside insulation of the cable increases its climate resistance and also resistance
againstthesunUVradiation.
TheprocedureduringinstallationofACOMEcabletypeCat7S‐STP
(IdenticalfortheprotectedterminalboxandODU)
• ThecoveroftheprotectedterminalboxisremovedusingaPhillipsscrewdriver(Figure6)or
thecoveroftheterminalboxspaceinODUisopenedusinganAllenwrenchno.5(Figure77).
• The pull‐over nutandthe
sealing grommet are placedoverthe cable. Thetop25 cmofPVC
cablecoverfromthecableendwillberemoved.Thesilkguidingthreadalsoneedstobecut.
• TheshieldinghastobecoAPRessedalittle,andtheconductorsneedtobecutbyabout2
cm.
Thuscreatedoverlappingshieldingwillbetwistedtogether.
• Thebottomwasher,springwasher,andthetopwasher(inthisorder)willbepulledoverthe
cableandpushedagainstthePVCcablecover.
• The twistedshield will beuntwisted andreleased somewhat. Thenitwillbe pulled over
the
washers on the cable and shortened at the bottom washer (figure 19). No wire of the
shielding must go over the bottom washer, in order to tighten the sealing grommet by the
pull‐overnutwellonthecable,andthussealthegrommetproperly.
• Shieldingofindividual
pairswillberemovedallthewaytotheturnedovertopbraiding.
• The cable will beinserted through the grommet, and the pulled‐over nut will be completely
tightened.
• Theindivid ualpairswillbedividedtotheinternalKroneconnectorsthatarecolorcodedand
numbered on the
PCB sticker according to the color codes (for the Cat7 S‐STP cable), or
numbers(fortheTel co100Ω4*ISTPcode).
• Theindividual conductorswillbeconnectedusingthepusherknifeforKroneconnectors.The
conductor insulation is not removed. It automatically cuts through by the knife connector
contacts
during installation. The conductorsare automatically cutto necessary lengthatthe
same time. The cutaway ends must be removed. That is why individual conductor lengths
mustbesufficientinordertobeabletohold thecutoffendsinhandduringcuttingintothe
connector.Removingthemwillprevent
possibledefects.
• Thecableinstallationwillbefinishedbythereinstallationofremovedcover.Theattachment
screwsaretightenedbyaP hillipsscrewdriveroranAllenwrench.
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