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specification guideSinglemode devicesTable of contentsOverview. (3)NG4 Central Office (DWDM MUX) (4)NG4 Central Office (DWDM MUX) ordering information (5)NG4 Central Office (DWDM MUX) optical specifications (7)NG4 chassis solutions (8)LGX Central Office and OSP DWDM modules (9)LGX Central Office (DWDM MUX) ordering information (10)LGX Central Office (DWDM MUX) optical specifications (11)LGX OSP (DWDM DEMUX) ordering information (12)LGX OSP (DWDM DEMUX) optical specifications (13)LGX rack mounting solutions (14)FOSC A and D trays OSP (DWDM DEMUX) (15)FOSC A and D tray OSP (DWDM DEMUX) ordering information (16)FOSC A and D tray OSP (DWDM DEMUX) optical specifications (17)Flat Pack OSP (DWDM DEMUX) (18)Flat Pack OSP (DWDM DEMUX) ordering information (19)Flat Pack OSP (DWDM DEMUX) optical specification (20)FIST-FDASA2 Trays OSP (DWDM DEMUX) (21)FIST-FDASA2 Tray OSP (DWDM DEMUX) ordering information (22)FIST-FDASA2 Tray OSP (DWDM DEMUX) optical specifications (22)OverviewInstalling new fiber is a costly and time-consuming way to support today’s bandwidth-intense applications. Network operators are seeking ways to adapt their existing fiber infrastructure to support new service, increase network capacity, and guarantee consistent performance. CommScope’s WDM integrated solutions allow network operators to increase capacity on existing networks without adding fiber, reduce costs, improve performance, deploy faster, and accelerate return on investment.Applications·Commercial Ethernet services ·Wireless backhaul services·Distributed access architectures (e.g., R-PHY) ·40/100/400 GbE ready optics·Single and dual fiber network architectures ·Existing fiber infrastructure expansionFeatures·4-, 8-, 10-, 20-, and 40-channel configurations ·Low pair loss when linking CO and OSP products ·100 GHz DWDM ITU channel spacing (ITU-T G694.1) ·Options include express, upgrade, and test portsWavelength division multiplexing (WDM) is a technique that allows network operators to multiplex several optical carrier signals onto a single optical fiber by using different optical wavelengths (i.e., colors) of laser light. Each wavelength carries an individual signal that does not interfere with the other wavelengths. WDM enables bidirectional communications over one strand of fiber, as well as multiplication of capacity. No power or additional fiber is required—making WDM solutions quick and easy to install and maintain. WDM has become the preferred option in telecommunications because it enables the network to increase the bit rate and effective bandwidth without having to add fiber.CommScope’s WDM portfolio includes a variety of form factors, optimal for a wide range of ISP and OSP applications. For example, CommScope’s LGX and NG4 ISP MUX modules can be paired with FOSC, flat pack, FIST -FDASA2, or LGX OSP demux modules.NG4 Central Office (DWDM MUX)CommScope’s single-height DWDM NG4 modules comply to GR-1209 and GR-1221 testing requirements. CommScope’s triple-height DWDM NG4 modules comply to GR-63 testing requirements.CommScope’s NG4 DWDM modules are designed to multiplex 8, 16, 20, and 40 DWDM wavelengths with 100 GHz frequency spacing on the DWDM ITU grid (ITU-T G.694.1). DWDM module options include express port (for wavelengths outside the C-band), upgrade port (for additional DWDM wavelengths), and TX and RX test ports.CommScope’s central office DWDM modules are designed to be used with NG4access universal chassis’, rack mount 1RU, and FACT element options and typically mated with compatible OSP DWDM products. The 40 channel NG4 module is designed to install into the NG4access universal chassis’ only.Single-Height NG4 VAM(8-, 16-, and 20-channel configurations)Triple-Height NG4 VAM (40-channel configuration)NG4 Central Office (DWDM MUX) ordering information• Module orientation required for NG4access universal chassis’ only. (As viewed from rear of chassis)• LEFT orientation standard for FACT NG4 Chassis.• 40 channel NG4 module installs into NG4access universal chassis’ only.• Please contact your local sales or customer service representative if required configuration is not listed above.NG4 Central Office (DWDM MUX) ordering information (continued)• Module orientation required for NG4access universal chassis’ only. (As viewed from rear of chassis)• LEFT orientation standard for FACT NG4 Chassis.• 40 channel NG4 module installs into NG4access universal chassis’ only.• Please contact your local sales or customer service representative if required configuration is not listed above.NG4 Central Office (DWDM MUX) optical specificationsOptical specifications include connector loss.NG4 chassis solutionsNG4 access universal chassisFeatures:·Single 4RU and 2RU chassis for all applications·One single-high VAM per access tray loaded from rear side of chassis/frame·Up to 24 single-high VAMs per 4RU universal chassis. Up to 12 single-high VAMs per 2RU universal chassis ·Can be deployed as a standalone 19”/23” chassis in standard racks ·4RU: 19.1 x 19.73 x 6.93 inch (Width x Depth x Height) ·2RU: 19.1 x 19.73 x 3.48 inch (Width x Depth x Height)NG4 1RU Chassis - All Front AccessFeatures:· 3 trays per chassis·Chassis accepts single high standard NG4 modules (front connectors only) · 6 modules per 1RU chassis ·19-in. or 23-in. rack mount options·19.1 x 13.5 x 1.75 inch (Width x Depth x Height)FACT NG4 ChassisFeatures:·The FACT NG4 element includes two trays·Each element can accommodate two single-height NG4 VAM modules ·524 x 283 x 30.95 mm (Width x Depth x Height)LGX Central Office and OSP DWDM modulesDouble-width LGX module (40-channel configuration)Single-width LGX module (4-, 8-, 10- and 20-channelconfigurations)CommScope’s DWDM LGX modules comply to relevant IEC 61753-1, GR-1209 and GR-1221 testing requirements.CommScope’s 3-inch-deep DWDM modules are designed to multiplex and demultiplex 4, 8, 10, 20 and 40 DWDM wavelengths with 100 GHz frequency spacing on the DWDM ITU grid (ITU-T G.694.1). DWDM module options include express port (for wavelengths outside the C-band), upgrade port (for additional DWDM wavelengths), and TX and RX test ports. OTDR service available on 40 and 20-channel modules. OSP DWDM modules include an auxiliary port that combines both the upgrade and express port to pass wavelengths outside of the C-band and additional DWDM wavelengths.CommScope’s central office DWDM modules are designed to be used with LGX chassis options and typically mated with compatible OSPDWDM products.LGX Central Office (DWDM MUX) ordering information ISP - LGX MUXPlease contact your local sales or customer service representative if required configuration is not listed above.LGX Central Office (DWDM MUX) optical specificationsOptical specifications include connector loss.LGX OSP (DWDM DEMUX) ordering information OSP - LGX DMUXPlease contact your local sales or customer service representative if required configuration is not listed above.LGX OSP (DWDM DEMUX) optical specificationsOptical specifications include connector loss.LGX rack mounting solutionsFeatures:·The LGX 4RU back-to-back chassis holds 14 single-width LGX modules per side or seven dual-width LGX modules per side ·Maximum density of 28 single-width LGX modules or 14 dual-width LGX modules ·19-in. or 23-in. rack mount· 2.5-in., 5-in., or 8-in. recess mounting options ·Dimensions (H x W x D): 6.9 x 17 x 15 inches·LGX pass-through module: Pass-through modules (qty. 2 required) can be mounted anywhere in chassis to allow cables from rear modules to pass to front of chassis.Features:·Maximum density of 14 single-width LGX modules or 7 dual-width LGX modules ·19-in. rack mount·Dimensions (H x W x D): 132.5 x 482 x 235 mm Features:·Holds three single-width LGX modules ·19-inch rack mount·Dimensions (H x W x D): 1.7 x 18.9 x 8.9 inches / 44 x 481 x 225 mm4RU back-to-back chassis3RU chassis1RU chassisFOSC A and D trays OSP (DWDM DEMUX)CommScope’s DWDM FOSC trays comply to GR-1209 and GR-1221 testing requirements.CommScope’s DWDM FOSC trays are designed to demultiplex 4, 8, 10, 20 and 40 DWDM wavelengths with 100 GHz frequency spacing on the DWDM ITU grid (ITU-T G.694.1). DWDM FOSC trays include an auxiliary port for wavelengths outside the C-band and for additional DWDM wavelengths, 250 µm fiber, and no connectors. All channel configurations are designed into FOSC A tray. 40-channel configuration is designed into both FOSC A tray (two-tray design) and FOSC D tray.CommScope’s OSP DWDM FOSC trays are designed to be field-installable into FOSC closures and BUDI wall boxes (FOSC A tray only). OSP FOSC trays are typically mated with compatible central office DWDM modules. Contact CommScope sales representative for further FOSC closure and BUDI wall box product information.FOSC A tray(4, 8, 10, 20 and 40 channel configurations)FOSC D tray (40 channel configuration)FOSC tray adapter (Part Number 760242191)FOSC A and D tray OSP (DWDM DEMUX) ordering informationPlease contact your local sales or customer service representative if required configuration is not listed above.FOSC tray adapterThe FOSC tray adapter allows for the use of FOSC A Tray into a FOSC C or D size splice closure.FOSC A and D tray OSP (DWDM DEMUX) optical specificationsFlat Pack OSP (DWDM DEMUX)CommScope’s DWDM flat packs comply to GR-1209 and GR-1221 testing requirements.CommScope’s DWDM flat packs are designed to demultiplex 4, 8, 10, and 20 DWDM wavelengths with 100 GHz frequency spacing on the DWDM ITU Grid (ITU-T G.694.1). DWDM flat packs include an auxiliary port for wavelengths outside the C-band and for additional DWDM wavelengths, 250µm fiber, and no connectors. CommScope’s DWDM flat pack ships with a holder to install onto FOSC trays (NOVUX tray holder coming in 2023).CommScope’s OSP DWDM flat packs ship with a holder to field install into various closures and wall box solutions. OSP flat packs are typically mated with compatible Central Office DWDM modules.Example of S CASE(10 channel configurations)Example of S CASE installed onto FOSC D TrayFlat Pack OSP (DWDM DEMUX) ordering information OSP-cassette demux 250 µmPlease contact your local sales or customer service representative if required configuration is not listed above.Flat Pack OSP (DWDM DEMUX) optical specificationFIST-FDASA2 Trays OSP (DWDM DEMUX)CommScope’s FIST-FDASA2 DWDM trays comply to relevant IEC 61753-1 testing requirements.CommScope’s FIST-FDASA2 DWDM trays are designed to demultiplex 8 DWDM wavelengths with 100 GHz frequency spacing on the DWDM ITU grid (ITU-T G.694.1). DWDM trays include an upgrade path to add, drop, or pass-through C-band DWDM channels not already in use, i.e., only channels that reside in the band 1530-1565 nm.CommScope’s FIST FDASA2 DWDM trays are designed to be used with FIST-GSS shelves, BUDI wall mount closures, and FIST closures (FIST-GCO2, FIST-GCOG2, FIST-MSC, FIST-EDSA). DWDM trays are typically mated with compatible central office DWDM products.8mm Height FDASA2 Tray(8 channel configurations)FIST-FDASA2 Tray OSP (DWDM DEMUX) ordering information OSP – FIST-FDASA2 DEMUXFIST-FDASA2 Tray OSP (DWDM DEMUX) optical specificationsCommScope pushes the boundaries of communicationstechnology with game-changing ideas and ground-breakingdiscoveries that spark profound human achievement.We collaborate with our customers and partners to design,create and build the world’s most advanced networks. It is ourpassion and commitment to identify the next opportunity andrealize a better tomorrow. Discover more at Visit our website or contact your local CommScope representative for more information.© 2023 CommScope, Inc. All rights reserved. All trademarks identified by ™ or ® are trademarks or registered trademarks in the US and may be registered in other countries. All product names, trademarks and registered trademarks are property of their respective owners. This document is for planning purposes only and is not intended to modify or supplement any specifications or warranties relating to CommScope products or services.。
1.6Tb DWDM Solution: 7500R SeriesData SheetProduct HighlightsDWDM Integrated on Switch Line card •High density DWDM solution for Cloud DataCenters•Cost and performance optimized for DataCenter Interconnect (DCI) to transportmassive volumes of traffic through metro orlong haul networks.•Ethernet over DWDM: Transparent to Layer2and Layer3 applicationsWire-speed Encryption•IEEE 802.1AE MACsec encryption•100G Wire Speed encryption on every port Metro and Long Haul Applications•100G PM-QPSK Modulation: 5000+ km•150G PM-8QAM Modulation: 2000 km•200G PM-16QAM Modulation: 1000 km•Robust OSNR and CD tolerance•120km of un-amplified reach Unmatched Density•8x200G on a 1RU Line card•19.2 Tbps per fiber pair•96 channels at 50GHz spacing and 48channels at 100GHz spacingHighly Scalable•Compatible with 10G, 40G and 100G linecards for 7500R Series•Deep packet buffer (12GB per line card)•Virtual Output Queues per port to eliminatehead of line blocking•Use of pluggable optics for pay as you grow Investment protection•Supports Flex Grid and grid-less tuningoperation for future growth•Future proof 7500 system architecture Cloud Networking Ready•768K MAC address•Over 1M+ IPv4 RoutesArista Extensible Operating System•Single binary image•Fine-grained truly modular network OS•Stateful Fault Containment (SFC)•Stateful Fault Repair (SFR)•Full access to Linux shell and tools•Extensible platform - bash, python, C++ OverviewThe phenomenal growth in demand for bandwidth, driven by mobile, video streaming and cloud applications, is driving the need for connecting several geographically dispersed data centers to maintain seamless content delivery and provide application agility. Cost effective high bandwidth data center interconnect can help organizations to meet several business objectives including business continuity and disaster recovery, large scale data transfer for analytics, big data, cluster computing and for scalability of metro data center topologies.For organizations that own or rent dark fiber, high bandwidth data center interconnect (DCI) based on coherent technology offers significant CapEx and OpEx benefits. An open and programmable DCI solution, like the Arista DWDM line card, decouples the optical interface from the line system components (multiplexers, amplifiers, ROADMs) and can be integrated with existing legacy line systems or any widely available open line system reducing the overall upgrade cost.The Arista second generation DWDM solution is integrated to a 7500R Series line card offering high-density with un-compromised performance. With Arista’s single EOS operating system and a chassis based solution that enables mix and match speed capability for the client interfaces, the overall solution is operationally simple and economically efficient. It utilizes proven coherent optical technology to enable simple, reliable and scalable data center interconnect solutions for both metro and long haul applicationsWhen data leaves the data center premise, one of the major challenges for data center operators is to protect the data from passive wire tapping, intrusion and other attacks. Most of the existing encryption solutions require additional systems that are expensive to deploy and manage. The Arista DWDM line card provides IEEE 802.1AE defined MACsec encryption at wire speed on every port for secure transport of data over distance.Arista 1.6Tb DWDM Coherent Line card for 7500R Series1.6Tb DWDM Solution: Architecture & EncryptionHighly Scalable and Future Proof ArchitectureThe Arista DWDM line card with built-in MACsec is supported in the Arista 7500R Series and compatible with all the available 10G, 40G and 100G line card o fferings. The following 7500R chassis options are available:•7516R a 16-slot 29 RU chassis that supports up to 16 line cards with both AC or DC power options •7512R a 12-slot 18 RU chassis that supports up to 12 line cards with both AC or DC power options •7508R a 8-slot 13 RU chassis that supports up to 8 line cards with both AC or DC power options •7504R a 4-slot 7 RU chassis that supports up to 4 line cards with both AC or DC power options The Arista 7500 Series uses a deep bu ffer virtual output queue (VOQ) architecture that eliminates head-of-line (HOL) blocking and virtually eliminates packet drops even in the most congested network scenarios. An advanced tra ffic scheduler fairly allocates bandwidth between all virtual output quests while accurately following queue disciplines including weighted fair queueing, fixed priority, or hybrid schemes. As a result, the Arista 7500 can handle the most demanding data center requirements with ease, including mixed tra ffic loads or real-time, multicast, and storage tra ffic while still delivering low latency.7500R High AvailabilityThe Arista 7500R Series are designed for continuous operation with system wide monitoring of both hardware and software components, simple serviceability and provisioning to prevent single points of failure. The hardware supports high-availability with hot-swap of all components with redundant supervisors, power supplies, fabric and cooling modules. Fabric N+1 redundancy provides zero loss of performance with deterministic degradation and integrated fan systems provide dynamic temperature control combined with N+1 redundancy. The 7500R Series o ffer power redundancy that supports both power source and power supply redundancy. The Arista EOS software supports stateful failover between the dual redundant supervisors as well as self-healing stateful fault containment (SFC), stateful fault repair (SFR) and live patching through in-service-software updates to help ensure continuous service.100G Wire-speed EncryptionThe Arista DWDM line card has built-in 100G wire-speed encryption on every port. Standards-based IEEE 802.1AE (MAC Security standard, hereafter referred to as MACsec) capabilities provide line-rate frame encryption and authentication for tra ffic transported across DWDM. This optional functionality removes the need for additional intermediate devices and provides encryption which ensures confidentiality as well as provides anti-replay protection and therefore confidence in the integrity of encrypted tra ffic.MACsec uses a long-term key to derive session keys used for encryption utilizing the MACsec Key Agreement Protocol per IEEE 802.1X-2010. Long term keys can either be statically defined or derived via RADIUS server(s)*. Data is encrypted using the 128 bit or 256-bit* GCM-AES-XPN block cipher suite.MACsec encryption is a licensed feature and requires a license file to enable the encryption feature. License information is included inthe ordering information section of this document.7500R Series 8 port 200G Tunable Coherent DWDM line card and ACO-CFP2 opticsArista EOSAll Arista products including the 7500R Series runs the same Arista EOS software, binary image simplifying network administration with a single standard across all switches. Arista EOS is a modular switch operating system with a unique state sharing architecture that cleanly separates switch state from protocol processing and application logic. Built on top of a standard Linux kernel, all EOS processes run in their own protected memory space and exchange state through an in-memory database. This multi-process state sharing architecture provides the foundation for in-service-software updates and self-healing resiliency together with stateful switchover without the loss of data plane forwarding.Arista EOS enables advanced monitoring and automation capabilities such as Zero Touch Provisioning, LANZ, VM Tracer and Linux based tools to be run natively on the switch.1.6Tb DWDM Solution: EncryptionFeature-rich, simple, high performance solution for Metro and Long Haul applicationsThe Arista DWDM solution integrates feature rich and high performance layer 2 and layer 3 switching with Coherent DWDM interfaces into a single high-density line card. It reduces complexity and at the same time delivers a cost e ffective and highly scalable solution with encryption and wire-speed performance for Data Center Interconnects in metro and long haul environments.Arista DWDM solution can be used in conjunction with passive Optical Mux/DMux devices and in-line amplifiers to support additional bandwidth and extended reaches. With an un-amplified reach of up to 120kms, it is ideal for Metro applications transporting up to 20 Tbps tra ffic when used with passive multiplexers, and without requiring in-line amplification (Figure 1). With unmatched Optical Signal to Noise ratio (OSNR) performance, it can be used e ffectively for point to point long-haul applications for over 5,000 km in 100G mode with in-line amplifiers and multiplexers (Figure 2). Higher bandwidth can be achieved using 150G mode and 200G mode. Detailed specification for each operating is on page 3 of this datasheet.Figure 1: Datacenter Interconnect point-to-point high bandwidth metro application~100km SMFMACsec EncryptionDC-1 DC-2Multiple λsFigure 2: Datacenter Interconnect point-to-point high bandwidth Long-Haul applicationEDFA: Erbium-doped fi ber ampli fi er100 km to 5000 km+ SMF spansMultiple λsMACsec EncryptionDC-1DC-2Open, Programmable and Scalable platformThe Arista DWDM solution o ffers a high capacity, high performance platform that is open, scalable and highly programmable. The open architecture enables integration with existing line systems as alien wavelengths to enable cost e ffective bandwidth expansion. The wavelength, modulation format and the output power are all software tunable making it ideal to work with open-line systems as well as legacy line systems including Optical multiplexers/demultiplexers, Optical amplifiers and reconfigurable optical add-drop multiplexers (ROADMs).Programmable modulation format provides ultimate flexibility to optimize bandwidth and reach requirements. PM-16QAM modulation provides the highest bandwidth for Metro or Regional applications (up to 1000km). 150G PM-8QAM mode o ffers 1.2Tb bandwidth with a reach of up to 2000km whereas the 100G PM-QPSK mode can be used for long-haul applications for distances of 5000+ km..The 7500R platform o ffers a scalable Data center interconnect solution with the capability to increase DWDM bandwidth by simply adding additional DWDM line cards to the chassis. Client interfaces can be a mix and match of 10GbE, 40GbE and 100GbE with the use of any of the available 7500R line cards. Below table represents the per fiber capacity that can be achieved with the various modulation formats and di fferent channel spacing.Mode of Operation Total capacity per Fiber (100GHz Spacing)Total capacity per Fiber (50GHz Spacing)Total capacity per Fiber(37.5 GHz Spacing)Expected Reach PM-QPSK 4.8 Tbps 9.6 Tbps 12.8 Tbps 5000+ km PM-8QAM 7.2 Tbps 14.4 Tbps 19.2 Tbps 2000 km PM-16QAM9.6 Tbps19.2 Tbps25.6 Tbps1000 kmLine Card Speci fi cationsThe Arista DWDM line card delivers 1.6Tb/s of bandwidth with 8 ports of Analog Coherent CFP2. Each port can be operated in 100G, 150G or 200G mode and has integrated advanced modulation, coherent detection and soft decision forward error-correction (SD-FEC) to deliver robust Optical signal to noise ratio (OSNR) and Chromatic dispersion (CD) tolerance performance to meet the requirements of metro and long haul networks.The Arista DWDM line card contains up to 12GB of packet memory for approximately 40msec of tra ffic bu ffer per ingress port and virtually eliminates packet drops in congestion scenarios. Line card connects to all fabric modules in a non-blocking full mesh.1.6Tb DWDM Solution: Technical Speci fi cationsAnalog Coherent CFP2 Speci fi cationsThe Arista DWDM Line-card utilizes industry standard Analog Coherent CFP2 (ACO-CFP2) pluggable optics to achieve high density. Pluggable optics enable field replacement and easy trouble shooting which minimize network downtime.Arista Coherent CFP2 transceivers o ffer full digital optical monitoring and can be tuned to any wavelength in the ITU-T defined C-band grid. They also support grid tuning for improved spectral e fficiency.Linecard Module7500R-8CFPXInterface CFPX-200G-DWDMMax 200G Ports 8Packet Bu ff er 12GB Weight20.0 lbs (9.1 kg) Typical Power (Max Power)900W (1180W)Physical Dimensions (WxHxD)17.5” x 1.75” x 23”(44.5 x 4.5 x 58.4 cm)Chassis SupportDCS-7516N, DCS-7512N, DCS-7508N and DCS-7504N DCS-7508 and DCS-7504Modulation format and Data Rate/portPM-QPSK: 100Gbps PM-8QAM: 150Gbps PM-16QAM: 200GbpsForward Error Correction (FEC)SD-FECPre-FEC Bit Error Rate (BER)3.2 E-02 (with 0.01 uncorrectedblocks/second)Optics ModuleCFPX-200G-DWDMChannel Range (Tunable)191.2 to 195.95 THz**Channel Grid100GHz, 50GHz, Flex Grid &Grid-less Physical Dimensions (WxHxD) 41.5 x 12.4 x 107.5 mm Connector Type Duplex LC Straight Weight0.25 lbs (115 gms)Max power consumption 15 W Tx Optical output power (Avg)***0 dBm, +/- 2dB Tx Optical output power tuning range0 dBm to -10 dBmShuttered output power - 30 dBm Rx Optical input power ***-28 to 0 dBmEnvironmental CharacteristicsOperating Temperature 0 to 40˚C (32 to 104˚F)Storage Temperature -40 to 70˚C (-40 to 158˚F)Relative Humidity5 to 90%Operating Altitude0 to 10,000 ft, (0-3,000m)Standards ComplianceEMI FCC Part 15 Class A, ICES-003 Class A, VCCI Class ASafety Safety IEC/UL/CSA/EN 60950 CE, UL, cTUVus, TUV Mark OtherROHS compliant*OSNR speci fi cation is with back to back con fi guration and referenced to 0.1nm noise bandwidth** Default channel at power up: 193.1 THz, 1552.52nm (50GHz grid). Extended Channel range: 191.15 THz to 196.1 THz is available upon request *** Speci fi cations are for 100G QPSK mode. For 200G 16QAM, Tx power (Avg) is -2dBm, and Rx sensitivity is -26dBm.Technical Speci fi cationsMode of Operation OSNRSensitivity*CDTolerance Polarization Mode Dispersion (PMD) tolerance (peak)PM-QPSK 9.8 dB 310 ns/nm 100 ps PM-8QAM 14.2 dB 45 ns/nm 60 ps PM-16QAM16.9 dB75 ns/nm60 ps1.6Tb DWDM Solution |Ordering InformationChannel Number Frequency (THz)Wavelength (nm)17192.81554.9418192.91554.1319193.01553.3320193.11552.5221193.21551.7222193.31550.9223193.41550.1124193.51549.3125193.61548.5126193.71547.7127193.81546.9128193.91546.1229194.01545.3230194.11544.5231194.21543.7332194.31542.93Channel Number Frequency (THz)Wavelength (nm)33194.41542.1434194.51541.3535194.61540.5536194.71539.7637194.81538.9738194.91538.1839195.01537.3940195.11536.6141195.21535.8242195.31535.0343195.41534.2544195.51533.4645195.61532.6846195.71531.9047195.81531.1148195.91530.33Channel NumberFrequency (THz)Wavelength (nm)1191.21567.952191.31567.133191.41566.314191.51565.495191.61564.686191.71563.867191.81563.048191.91562.239192.01561.4210192.11560.6011192.21559.7912192.31558.9813192.41558.1714192.51557.3615192.61556.5516192.71555.74Arista 100GHz Channel Numbers and Wavelengths (100GHz ITU grid)Product NumberProduct DescriptionDCS-7500R-8CFPX-LC#7500R Series 8 port 200G Tunable Coherent DWDM, with MACsec line card (ships in chassis)DCS-7500R-8CFPX-LC 7500R Series 8 port 200G Tunable Coherent DWDM, with MACsec line card (spare)LIC-MOD-1-MACSEC MACsec Encryption License for Arista Modular switches - Encryption with MACsec capable LinecardCFPX-200G-DWDM100G/200G Coherent Tunable CFP2, Linear Interface, DP-QPSK, 8QAM and 16QAM modulation with Gridless tuning and Nyquist ShapingOrdering Information1.6Tb DWDM Solution | 50GHz Channel NumbersChannel Number Frequency(THz)Wavelength(nm)33192.81554.94 34192.851554.53 35192.91554.13 36192.951553.73 37193.01553.33 38193.051552.92 39*193.11552.52 40193.151552.12 41193.21551.72 42193.251551.32 43193.31550.92 44193.351550.51 45193.41550.11 46193.451549.71 47193.51549.31 48193.551548.91 49193.61548.51 50193.651548.11 51193.71547.71 52193.751547.31 53193.81546.91 54193.851546.52 55193.91546.12 56193.951545.72 57194.01545.32 58194.051544.92 59194.11544.52 60194.151544.13 61194.21543.73 62194.251543.33 63194.31542.93 64194.351542.54ChannelNumberFrequency(THz)Wavelength(nm)65194.41542.1466194.451541.7467194.51541.3568194.551540.9569194.61540.5570194.651540.1671194.71539.7672194.751539.3773194.81538.9774194.851538.5875194.91538.1876194.951537.7977195.01537.3978195.051537.0079195.11536.6180195.151536.2181195.21535.8282195.251535.4383195.31535.0384195.351534.6485195.41534.2586195.451533.8687195.51533.4688195.551533.0789195.61532.6890195.651532.2991195.71531.9092195.751531.5093195.81531.1194195.851530.7295195.91530.3396195.951529.94Arista 50GHz Channel Numbers and Wavelengths (50GHz ITU grid)Channel Number Frequency(THz)Wavelength(nm)1191.21567.952191.251567.543191.31567.134191.351566.725191.41566.316191.451565.907191.51565.498191.551565.089191.61564.6810191.651564.2711191.71563.8612191.751563.4513191.81563.0414191.851562.6415191.91562.2316191.951561.8217192.01561.4218192.051561.0119192.11560.6020192.151560.2021192.21559.7922192.251559.3923192.31558.9824192.351558.5825192.41558.1726192.451557.7727192.51557.3628192.551556.9629192.61556.5530192.651556.1531192.71555.7432192.751555.34* Default channel at power up: 193.1 THz, 1552.52nm (50GHz grid)Contact InformationHeadquarters5453 Great America Parkway Santa Clara, California 95054 408-547-5500 Support******************408-547-5502866-476-0000Sales****************408-547-5501866-497-0000Copyright 2017 Arista Networks, Inc. The information contained herein is subject to change without notice. Arista, theArista logo and EOS are trademarks of Arista Networks. Other product or service names may be trademarks or service marksof others.WarrantyThe Arista DWDM Line card for 7500R Series switches and Arista Optical transceivers come with a one-year limited hardware warranty, which covers parts, repair, or replacement with a 10 business day turn-around after the unit is received.Service and SupportSupport services including next business day and 4-hour advance hardware replacement are available. For service depot locations,please see: /en/serviceOct 8, 2018 03-0035-04。
中兴DWDM系统完成长距离光传输工程随着全球经济一体化进程的加快，通讯业务量快速增长，在全球范围内都需要大容量的传输系统搭建通信的基础平台，而其主要的技术手段就是采用光通信技术。
目前，光通信发展方向主要表现为两个方面。
一方面光纤通信系统一直在追求单波长传输速率更高（从2.5Gbit/s到现在的10Gbit/s，正向40Gbit/s 发展）、波长数更多（从单波到8波到现在的40波，正向160波以上发展）、无电中继距离更长；另一方面未来的光传送网将向更灵活、智能化方向随着全球经济一体化进程的加快，通讯业务量快速增长，在全球范围内都需要大容量的传输系统搭建通信的基础平台，而其主要的技术手段就是采用光通信技术。
目前，光通信发展方向主要表现为两个方面。
一方面光纤通信系统一直在追求单波长传输速率更高（从2.5Gbit/s到现在的10Gbit/s，正向40Gbit/s 发展）、波长数更多（从单波到8波到现在的40波，正向160波以上发展）、无电中继距离更长；另一方面未来的光传送网将向更灵活、智能化方向发展，经济有效、业务透明、频带可管理将成为其特征。
而对于WDM技术而言，前一个方向更是发展的重点。
大容量超长距离光传输系统可简化骨干网的结构，便于业务调度和管理，并可大大减少昂贵的电再生器件的使用，从而减少网络投资、降低运营费用，节省占用空间和功率需求，并易于升级，是光网络的基本支撑技术。
所以无电中继传输距离更长、波长数更多、单通道速率更高的大容量超长距离光传输系统是国内外研究一大热点。
在这一领域，中兴通讯近期取得了重要进展，在中国新疆建设复用段总长度1104km的WDM大容量超长距离光传输示范工程（如图1所示），通过了国家863专家组的现场验收并已投入运营。
该工程为中国国内某主流运营商的省级干线工程，总容量为40×10Gbit/s（厂验时配置为160×10Gbit/s），采用了AFEC （AdvancedForwardErrorCorrection）、ERZ（Electr ic al Return－Zero）、Raman放大器、集中波长监控、功率管理和色散管理等一系列先进、成熟的技术。
