rj45 cat.8: a topic for lan? - cabling & wireless · 2019. 11. 8. · scenario for 25/40gbase-t...
TRANSCRIPT
RJ45Cat.8:atopicforLAN?
MatthiasGerber,MarketManagerLANCabling,R&M
October2019
Developmentofdatarates
Dataratesfollowtrendcurve:• Moor’slawuntil2010• Slowerincreasesince
Experienceshowsfor2020:• 100GBase-Xwillbestateoftheartbetweenswitches• 40GBase-Xwillbestateoftheartforserveraccess
• 10GBase-TwillbecomethepreferredmediainLAN
?
IEEE40GBase-Tbusinesscase
• SavingpotentialforTPportsvs.FOports• SavingpotentialforTPportsvs.QSFPDACports• Easymigrationfrom10Gto40Gonsamemedia
• TopoftheRack(TOR)– PointtoPointconnection– Onlyfewmeters– Patchcordsonly
• EndofRow(EOR)– 2connectorChannels– 30mchannellengthisenough– Genericcablingsystembetween
cabinets
Responsiblestandardscommittees
Requirements channel
Definition Channel
Definition Permanent Link
Definition Components
IEEE
ISO/IEC SC25/WG3 IEC
TC46 / TC48
ANSI/TIA TR42.7
Definition: Channel,
Permanent Link, Components
40GBase-Tcablingstandardization
• IEEE802.3bq(09/2016) MDIdefinitionandchannelrequirements
• ISO/IEC118013rded.(10/2017)30mChannel,Bandwidth2000MHz
– ClassI(Cat.8.1)BasedoninterpolatedCat.6A
– ClassII(Cat.8.2)BasedoninterpolatedCat.7A
• ANSI/TIA568-C.2-1 (07/2016)
30mChannel,Bandwidth2000MHz– Cat.8
BasedoninterpolatedISO/IECCat.6AComparabletoCat.8.1
Cat.6AISO/IECCat.6ATIACat.7A
Cat.8.1Cat.8.2
Keytechnology:10GBase-T
Thecodingtechnologyof10GBase-T(IEEE802.3an)isalsousedforotherprotocols:
10GBase-T
400MHz
Cat.6A
25GBase-T
1000MHz
Cat.8.1
2.5GBase-T
100MHz
Cat.5e
5GBase-T
200MHz
Cat.6
40GBase-T
1600MHz
Cat.8.1
PLdistance:90mAlienNEXT!
PLdistance:90mPLdistance:90mAlienNEXT!
PLdistance:24mPLdistance:xm
DraftTR11801-9909
Expected:approx.50m
Scenariofor25/40GBase-TinLAN
• BackwardcompatibleRJ45cablingwithbuiltinmigrationcapabilitiesfrom1G-10G-25G-40G
• Futureproofingforwirelessbasestationsofthenextgeneration(s)(WLAN/WiFi6,DAS,5Gpicocells)
• Distancedependingdataratezones• AsignificantnumberofLANlinkscould
benefitfromatleastadoubelingofthedatarate
• 25GsupportaccordingtoreportISO/IECDTR11801-9909
*Expecteddistancefor25Gsupport:50m
LinklengthdistributioninLAN
• PermanentLinkdistributionbasedon120kCat.6Alinks• 50mLink-lengthwouldcover62%oftheinstalledbase
Excampleinstallation1
TR1
50m
25m
Planned100workspaces/floor
24mzone
50mzone
TR2
TR1:-24m(40G/8.1):30%WS;75%WAP-50m(25G/8.1):95%WS;100%WAP
TR1&TR2:-24m(40G/8.1):58%WS;100%WAP-50m(25G/8.1):100%WS
Excampleinstallation2
DC
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Consultancy / MM / PM DPF DPM
CTO / Project Management
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CIT
Labo
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DTP
Product Support
Tech
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Trai
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pearl r
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CIT
Testing Lab CBS
PEN
CM
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MarCom & E-Media
MR 04.261
Scr
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MR 04.291
MR 04.201
MR 04.301
MR 04.211
MR 04.241
24m zone
24m zone
50m zone
50m zone
TR1
TR2
R&MKubus(2011):(120–180workspaces)
24mzone(40G/Cat.8.1)• 45%workspace• 75%WAP
50mzone(25G/Cat.8.1)• 100%workspace• 100%WAP
90mzone:notneeded
Cat.8.1/ClassI:PermanentLink
• 2connectormodelonly;shieldedcablingsolutionsonly• DifferentlinklengthmodelsinTIAandISO/IEC
ISO/IEC TIA Recommendation
PermanentLinklength 5m–26m Max.24m 5m–24m
Patchcordlength 2m–4m Max.8m 2m–4m
El.Lengthforattenuationbudget Max.32m Max.32m Max.32m
Mechanicalchannellength Max.30m Max.30m Max.28m
*Max.lengthdependentonselectedpatchcorddiameter(factor:AWG22/23:1;AWG24:1.25;AWG26:2)
*
*
WhytouseCat.8.1inLAN?
• Cat.8.1isfutureproofandcoversthecablingneedsforthenext10–15years
• Firstapplicationsareforeseeable(WAP/WiFi6,DAS,5GPicocells)
• Cat.8.1isthecurrenthigh-endRJ45technology
• Cat.8.1isfullycompatibletoexistinginstallationsandequipment.Existingpatchcordscanbeused
• Cat.8.1isavailableandcanbeusedimmediatelly
• Cat.8.1allowsremotepowering(PoE)• Cat.8.1’sbasetechnologyiswellknown
andiseasylyapplicable
Summary/Insigths
• IndatacentersCat.8.1for40GBase-Tisincompetitionwithexisting,proven40GBase-Xtechnologies(FOandDAC)
• Cat.8.1simplifiesthemigrationfrom1Gto10Gto40G(built-incompatibility)• Alinklengthof26mlimitstheapplicabilityof40GBase-TinLAN• Theextendedreachof25GBase-TaccordingDTR11801-9909(e.g.to50m)will
enhancetheusabilityofCat.8.1intheLANenvironment• Inmanyrealworldinstallationasignificantnumberofworkspaceswouldbenefit
fromabiggerbandwidth
• RJ45basedCat.8.1havetheadvantageofbuilt-inbackwardcompatibility.Cat.8.2componentshavenoadvantageregardingdataspeed,butneedspecialadaptorpatchcords
• Cat.8.1componentsmustbecompatibletolowercategorycomponents.I.e.withCat.6Apatchcords10GBase-Tcompatibilitymustbereached
Thankyou!