光设备招标实际应用问答Word文件下载.docx

光设备招标实际应用问答Word文件下载.docx

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i.CoreLayer

InCoreLayer,theproposednetworkshouldreceiveandconvertthegivensourcesofRFsignalstoopticalsignalstothesesignalstoDistributionLayerforsignaldistribution.

ii.DistributionLayer

InDistributionLayer,theproposednetworkshoulddistributetheopticalsignalsfromCoreLayertoAccessLayer.

iii.AccessLayer

InAccessLayer,theproposednetworkshouldreceiveandconverttheopticalsignalsfromDistributionLayerbacktotheRFsignals.

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.[Optional]TheproposednetworkcandelivermultiplesourcesofRFsignalsreceivedatCoreLayerandhandingoverindividualRFsignalsatAccessLayer.Vendorshouldexplainthedetailshowtodelivermultiplesourcesthroughtheproposednetwork.

[Mandatory]Theproposednetworkshouldprovidethefollowing:

CoreLayer

i.CoreLayer

ReceivingmultiplesourcesofRFsignalsandconvertingopticalsignalstopasstothe

DistributionLayerii.DistributionLayer

Partially/FullyMesh

TreeorBranchiii.AccessLayer

ConvertingopticalsignalsfromDistributionLayerbacktoRFsignals

DifferentiatingRFsignalsaccordingtoincomingmultiplesourcesatCoreLayerVendorshouldspecifythetopologiestobeusedbytheproposednetworkandexplaintheapplicationsofsuchtopologies.

.[Mandatory]TheproposednetworkshouldbedesignedtoallowbuildingsatAccessLayerconnectingtoanysitesatDistributionLayerwithinthesameZone.PleaserefertotheSection

A–NetworkModelforthedetails.

.[Mandatory]Vendorshouldclearlystatethedesignprinciplesfortheproposednetworkincluding:

DesignGuideline

DesignCriteria

ExpansionMethodology

LinkBudgetandCapacityCalculations

Pleasespecifyifthereisanyassumption（s）made.

.[Mandatory]TheproposednetworkshouldtransportRFsignalsinthefrequencyrangefrom

54MHzto862MHz.Highermarksgivenifitcansupportthewiderfrequencyrange.

.[Mandatory]Theproposednetworkshouldtransportatleast20ofcarriersofRFsignalsinoneopticalwavelength.HighermarksbegivenifitcantransportmorecarriersofRFsignalsinoneopticalwavelength.

.[Mandatory]Theproposednetworkshouldnothaveanyrestriction/limitationonmodulationmethodsofRFsignals.

[Mandatory]Further,theproposednetworkshouldsupportatleast100kmofopticalfibersfromCoreLayertoAccessLayerforthetransportationofRFsignals.Vendorshouldexplainindetailsifthereisanyrestriction/limitationonthelengthofopticalfiberstodeliverRFsignalsandthemethodologytoovercomesuchrestriction/limitation.

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[Optional]Theproposednetworkmaysupportthedense-wavelength（“DWDM”）and/orcoarse-wavelength（“CWDM”）opticsaccordingtoITU-TG.694.Vendorshouldspecifywhichwavelength（s）supported.Highermarksgivenforsupportingmoretypes/wavelengths.

[Optional]VendormayconsidersharingtheopticalfiberstodistributetheopticalsignalsfromDistributionLayertoAccessLayerwhicharerunninginasingle-coreopticalfiberbetweeneachdestinationinAccessLayerandDistributionLayeratwavelengthsfrom1300nmto1500nm.HighermarksgivenforsupportingthisClause.

[Mandatory]Theproposednetworkshouldoptimizethenetworkresourcesincludingbutnotlimitedtoopticalfibers,powersupplyandequipmentaccommodation.

[Mandatory]Pleaseprovidethedetailsoftheproposednetworkinthefollowingareas:

i.IndustrialStandards

ii.NetworkandEquipmentCapacityiii.EquipmentProductionCycle

iv.ReferenceandSuccessfulCases

v.RecommendationfortheDeploymentoftheproposedsolution

[强制要求]技术建议需要提供下述几个方面的详细细节:

i.行业标准答：

中华人民共和国行业标准。

GY/T131-1997（有线电视网中光链路系统技术要求和测量方法）

ii.网络和设备的容量答：

网络和设备最少能传输60套节目

iii.设备生产周期答：

设备生产周期为3天

iv.相关应用的成功案例

v.建议方案在安装部署方面的建议

NetworkResilience

[Mandatory]TheproposednetworkshouldprovidetheresiliencefromCoreLayerand

DistributionLayer.

[Optional]VendormayproposethenetworkprovidingtheresiliencefromCoreLayer,DistributionLayerandAccessLayer.

[Mandatory]Theproposednetworkshouldbeconfigurabletoactive-activemodeoractive-standbymode.Theactive-activemodeshouldworkasthesignalstobedeliveredcanrunonallpathsintheproposednetwork.Theactive-standbymodeshouldworkasthesignalstobedeliveredcanrunonworkingpathsandtheotherpathsshouldbestandbyonly.

.[Optional]Theproposednetworkmayprovidemanualswitchingoverbetweenworkingandstandbypathsforoperationpurpose.Highermarkswillbegivenformeetingthisrequirement.

.[Optional]Theproposednetworkmay