TDMOIP文档格式.docx
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TDMOIP文档格式.docx
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●QOSguaranteeofE1signaltransferredoverIPnetwork
●Easytouse,pluginandplay,noneedforcomplicatedconfiguration
●Searchingaddressthroughswitch,routerandothernetworkequipmentsbasedonIPAddress
●UniversalEthernetinterface,10M/100Madaptive
1.3Keypoints
DuetothespecialcharacteristicsofIPnetwork,newwaysshouldbeemployedtoregeneratethetiminginformationofE1signalflowsthroughtheLANportsIntheE1TOIPsystem.Asimplemethodistomakethetwoendpointsworkingatthesync-clocknetwork,thussystemcandirectlyregenerateE1outputsignalsbythelocaltimingmode,meanwhileachievelownetworkdithering.However,it’salmostimpossibletorequestallthedatanetworkstobesynchronous,therestorationofE1signalsdirectlydependsonthereceivepackets.Moreover,thenetworkinfluencesuchasdithering,packetloss,andsoon,makesitunabletoemploythenormalclock-regeneratemethod.
Inordertoconquerthesedifficulties,weexploitanewtechnologyofalldigitalclock-regenerationbasedonthestatisticprediction.
1.4Mainparametersandfunctions
1.4.1Power
ACpowersupply:
powerrange:
160-240V
powerconsumption:
<
4W
-48VDCpower:
ratedvoltage+-20%
1.4.210/100BASE_TEthernetInterface
connector:
RJ-45
datarate:
10/100Mbps
operationmode:
10or100Mbps,halfduplexorfullduplex,auto-negotiate
compliedwithIEEE802.3standard
1.4.3E1Interface
Numberofchannelssupported:
accordingtoordering
TDMOIP–1:
1E1line
TDMOIP–2:
2E1lines
TDMOIP–4:
4E1lines
BNCcoaxialsocket
inputfrequencyspectrum:
2.048Mbps±
50ppm
Linecode:
HDB3
impedance:
75Ωunbalanced
compliedwithG.703standard
1.4.4Equipmentweight
3.5KG–4.5KGaccordingtoordering
1.4.5Environment
operating:
temperature:
0~50℃
humidity:
20~90%
storage:
-20~65℃
10~95%
1.5Boardinstruction
1.5.1Dimensions
270mm(w)×
40mm(h)×
105mm(d)
1.5.2Frontboard
LEDdistrictSerialportpower(on/off)
1.5.3indicatorlights:
PWR:
Whenpoweron,redlightbrighten.
SYS:
Immediatelyafterpoweron,greenlightbrightens,severalsecondslater,itblacksout,andthenbecomesbrightenagain.Whensystemisrunning,thelightisblinkingpersecond.
E1:
Whensystemstops,thelightisblack.ItkeepsblackinitiallyafterpowerturnedonuntilE1signalrunsnormallyandthenbecomesbrighten.
LOS:
IndicatethelossofE1signal.Lighten,localE1loss-alarm;
glisten,remoteE1loss-alarm;
blackout,noalarm.
LOF:
E1frameloss,lightentoalarm.
RX/TX:
100MuplinkTX/RXindicator,lightenwhenTx/Rxdata;
blackoutwhennodata.
LNK:
100MdownlinkTX/RXindicator,lightenwhennormallylinkwithwire,viceversa
1.5.4Backboard
ACDC100MCLKINCLKOUTOUTIN
AC:
220V,DC:
-48V/-24V/-60VInput
Configcableaccordingtocustomercommands
DC:
+5Vinput.Configpoweradaptor
100M/10M:
Uplinkport
CLKIN:
Externalclockinputport,2MHZTTL,reserved.
CLKOUT:
clockoutputport,reserved
IN:
2Msignalinput
OUT:
2Msignaloutput
2Hardwareinstallanddebug
2.1Projectpreparation
Findoutcontractinfo,goodsinfo,projectdocuments,knowtheman-hourandtimelimitoftheproject,makeclearthecustomerrequirementandinstallationenvironment,andthenaccordingtotheaboveinfo,writea“projectexecutionscheme”,whichshouldbeexaminedandapprovedbytheleaderincharge.Internalpersonnelmeetingshouldbeholdtocheckthepreparationbeforetheprojectcarriesoutwhenitisneeded.
&
instruction
Projectdocumentscontain“spotreconnaissancereport””contractequipmentlist”“installenvironmentchecklist(once)”
2.1.1Preparetechnicaldocumentsforconstruction
Networkprogramming,workroomdesign,particularblueprintandcable-pavepicture,Thedemandershouldmakesurethatallthesefilesmentionedabovebefinishedbythedesign-departmentitconsigned,andalsosubmitthosefile-copiestothesupplerbeforetheconstruction
2.1.2Preparetoolsandinstruments
Table2-1toollist
Normaltool
Fastentool
screwdriverM3-M6
spanner
locksmith
forceps、pincers、plier、electricdrill、rubber-hammer
Specialtool
groundresistancemeter、anti-staticwrist、anti-staticglove、wirestripper,wire-presspliers(forRJ45)、punchwireblade
instrument
multimeter、500VMohmmeter(useforinsulatedresistancemeasure)
1.Suppliershouldprovidetheinstrumentslist,noinstalltoolissuppliedwiththeTDMOIPequip,demandershouldpreparefortheinstalltools
2.Everyinstrumentshouldbecheckedandqualifiedbeforeuse.
2.2Installenvironment
Makesuretheinstallenvironmentsuchascable,groundwire,workroomconstruction,powerandsoonwhenpreparingfortheproject.Allthespecificconditionsbelowshouldbeexamined.
2.2.1Workroomenvironment
Checkingwhethertheitemsbelowarequalified:
●Illuminationsystemunderthetheredifferentconditions:
ordinary,standby,accident.
●Watersupplyanddrainagesystem
●Shockprooflevel
●Air-conditionandair-drain(maintaintemperature~25℃,humidity<
90%)
●Anti-Staticelectricitymeasure
●Lightningproofmeasure
●Dustproofmeasure
2.2.2Powersupply
●alternatingcurrentsupply,powerconditions,andnormally,standbypowersupplyisdemanded.
●PowersupplyrequirementforTDMOIPsystem
AC:
100~240V,50/60Hz,Maxinputcurrent:
0.1A
●ACswitchboardneedsindependentACsafetyground
2.2.3Assistantequipments
BeforetheinstallationofTDMOIP,ifotherequipmentsarealsodemanded,makesurethatallofthemarereadyforwork.Forinstance,checkoutwhetherLANSwitch,WirelessBridge,transmissioncableareinstalledandqualified.
2.2.4Groundwire
Thecentralgroundofinputpower,calledcrustground(orguardground),isdirectlyjointedwithcrustbybolt.Makesurethecrustgroundiswellgroundedtoresistelectromagnetisminterferenceandguaranteethatfaradismandleakagecurrentflowingtothegroundsafely.CrustgroundedpointisaM4bolt,locatedonthebackboardofbody.
Linkoneendofthecrustgroundwire(anaccessoryofTDMOIP)tothecrustgroundedpoint,andtheotherendtothenearestground.
IfTDMOIPisinstalledonthe19-inchstandardmachinecabinet,linkthegroundwiretothePGNDpointinsidethemachinecabinet.Orifitinstalledontheoutsideofmachinebox,makesureitwellgroundedaswell.
Well-groundedisthemostimportantguaranteeofLightningproof,anti-jamming,andreliableoperation.Takeseriousexaminationofthespotgroundconditions,andmakesurethatallisright.
2.2.5Installcondition
Whethertheequipmentisinstalledbetweenthecorridorelectric-wellsorinsidethemachinecabinetorontheworktable,makesureallofthefollowingitemsareingoodcondition:
●Checkwhetherthereisenoughspaceleftintheportofair-breathingandair-drainage
●Checkwhethermachinecabinetandworktableareequippedwithgoodradiatorandair-breathingsystem.
●CheckwhethermachinecabinetandworktablearefirmenoughtosustainthewholeweightofTDMOIPanditsaccessories.
2.2.6Otherestablishment
Inthemachinemanagementhouse,severalothergoodsarealsoneeded,suchascomputertable,chair,electricaloutlet,telephone(foroutsidecommunication),andsoon.
2.3Installnotice
Topreventmachine-damageorpersonalhurt,pleaseobeythefollowingitems:
Ø
Don’tputTDMOIPandinstallequipmentsinthewalkingarea,onthewatersideorotherwetplace.MakesurenowaterorwetairisaccessibleintothebodyofTDMOIP.
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- 关 键 词:
- TDMOIP
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