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Cisco NCS 2000 1.2 Tbps DWDM Line Module Data Sheet

Data Sheet

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Updated:March 22, 2022

Bias-Free Language

The documentation set for this product strives to use bias-free language. For the purposes of this documentation set, bias-free is defined as language that does not imply discrimination based on age, disability, gender, racial identity, ethnic identity, sexual orientation, socioeconomic status, and intersectionality. Exceptions may be present in the documentation due to language that is hardcoded in the user interfaces of the product software, language used based on RFP documentation, or language that is used by a referenced third-party product. Learn more about how Cisco is using Inclusive Language.

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Updated:March 22, 2022


The Cisco® Network Convergence System (NCS) 2000 1.2 Tbps DWDM line module enhances dense wavelength-division multiplexing (DWDM) transmission with the new 400G client interface and 400GE client protocol support. The DWDM line module provides 1.2 Tbps of Client and 1.2 Tbps of Trunk capacity occupying 2 slots in NCS 2000 chassis. The line module is capable of mapping Client traffic to 200/300/400 Gbps Trunk wavelengths of ITU-T fixed or super channels providing customers bandwidth of 600G to 1.2T.

Product overview

The evolution of traffic at the access with 4G/5G technologies and 400GE at the data center and the service provider networks have resulted in the need for higher speed of transmission at the optical domain using new modulation scheme formats and the existing super channel capabilities on the optical fiber.

NCS 2000 1.2T DWDM Line module

Figure 1.               

NCS 2000 1.2T DWDM Line module

The Cisco NCS 2000 1.2 Tbps DWDM line module provides the best mode of transmission of the 100G and 400GE client protocols from access, metro, and core networks. NCS 2000 1.2T licensed version of the line module seamlessly helps to maintain and improve customer agility in turning up bandwidth on-demand considering no additional truck roll on an existing DWDM system or new line system. The DWDM line module is tuned to support both metro and long haul deployments with the necessary modulation formats/ trunk capacity per wavelength. This improves ROI for service providers to offer multiple services such as long haul transmission and metro transmission from the same line module.

Four coherent modulation formats are supported to best suit network requirements:

200G-DP-QPSK, 200G-DP-16QAM*, 300G-DP-8QAM, 400G-DP-16QAM

     200 Gbps dual polarization-multiplexed Quadrature Phase Shift Keying (QPSK)

     200 Gbps dual polarization 16-state Quadrature Amplitude Modulation (16-QAM)

     300 Gbps dual polarization 8-state Quadrature Amplitude Modulation (8-QAM)

     400 Gbps dual polarization 16-state Quadrature Amplitude Modulation (16-QAM)

*Future Release

The Cisco NCS 2000 1.2 Tbps DWDM line module (Figure 1) simplifies the integration and transport 100/400 Gigabit Ethernet and Optical Transport Unit Level 4 (OTU-4) interfaces and services into enterprises and service provider optical networks to best-in-class DWDM transmission capabilities.

Cisco 400G CFP2-DCO digital optics

Cisco coherent transmission technology greatly enhances the reach and reliability of transport performance while providing the flexibility to select the optimal modulation scheme for a specific application. The primary benefits of Cisco coherent technology are:

     Strong optical signal-to-noise ratio performance

     Outstanding chromatic dispersion robustness, avoiding any additional cost related to optical chromatic dispersion compensation equipment

     Extended polarization mode dispersion robustness

     Very high spectral efficiency, allowing wavelengths to be transmitted across a large number of ROADMs with negligible penalty

The CFP2 digital optical pluggable solution is the combination of the transceiver module and the DSP photonics integrated on a CFP2 form factor. Cisco offers a 400G CFP2-DCO pluggable optics module that addresses a wide range of network optical interconnect applications, including service provider access aggregation, wireless 5G backhaul, metro and long haul networks, and as data center interconnects. With support for Ethernet/OTN clients, and line-side transmission of 200 Gbps QPSK modulation up to 400 Gbps 16QAM, the module offers enhanced flexibility in a pluggable coherent solution. The CFP2-DCO product family features an expansive list of interoperability modes as documented by OpenROADM MSA and the Optical Internetworking Forum (OIF).

Pluggable solutions such as 400G CFP2-DCO are designed to enable network operators to address increasing bandwidth demand through a pay-as-you-grow model that has the potential of reducing both capital and operational expenditures. The 400G CFP2-DCO module incorporates a 7-nm CMOS technology and a silicon Photonic Integrated Circuit (PIC) for an optimized co-packaged design.

The Cisco 400G CFP2-DCO leverages this critical aspect by supporting oFEC for Open ZR and Open ZR+ modes and the standard C-FEC in the 400ZR mode.

Features and benefits

The Cisco NCS 2000 1.2 Tbps DWDM line module provides compelling benefits in the areas of efficiency, performance, flexibility, and density improvements.


In a single, 2-slot-wide line card, the 1.2 Tbps DWDM supports 100GE, 400GE, and OTU4* client protocols, providing the ability to groom the services into 3 wavelengths capable of up to 400 Gbps each.

Performance improvement

The latest generation of Digital Signal Processors (DSPs) provide a dramatic boost to the optical performance of 200 Gbps QPSK, 200 Gbps 16-QAM*, 300 Gbps 8-QAM, and 400 Gbps 16-QAM, allowing to support multiple deployment scenarios where throughput plays a key role in achieving maximum transmission capacity on fiber.


The service type of both Client and Trunk optics are based on pluggable modules, allowing a true pay-as-you-grow investment profile, where card personality is defined and redefined at the pluggable level. Due to the port-by-port service-type flexibility, this also radically reduces the variety of line cards an operator is required to inventory. The Cisco NCS 2000 1.2 Tbps DWDM line module provides 3 ports of QSFP-DD and 5 ports of QSFP 28 form factor, where the 3 ports of QSFD-DD can be used with QSFP28 for 100G client services.


The Cisco NCS 2000 1.2 Tbps DWDM line module is able to triple the slot density compared with the previous generation of transponder cards.

Software configurable FEC option

The Cisco NCS 2000 1.2 Tbps DWDM line module features the new C-FEC and O-FEC adoption, providing the best performance based on the requirements on the network.


The Cisco NCS 2000 system provides comprehensive management capabilities to support Operations, Administration, Maintenance, and Provisioning (OAM&P) capabilities through the integrated Nodal craft interface with support from the Cisco Evolved Programmable Network Manager (EPN-M) network management system. The 1.2 Tbps DWDM line card features ZR+ framing as well as ITU-T G.709 functionality, providing per-wavelength performance management capabilities, especially for services transported transparently across networks. Without the digital wrapper functions, a carrier transporting a service transparently would be unable to identify network impairments that may degrade the transported signal and violate the SLA agreements. The digital wrapper’s Generic Communication Channel (GCC) provides a separate communications channel on a per-wavelength basis to be used when transparent signals are transported. GCC allows the Cisco NCS 2000 system to extend its advanced network auto discovery capabilities to DWDM-based services.

Performance monitoring

The Trunk ports on the Cisco NCS 2000 1.2 Tbps DWDM line card provide support for transparent signal performance monitoring. The digital wrapper channel is monitored according to G.709 Optical Transport Network (OTN) and G.8021 standards. Performance monitoring of optical parameters on the client and DWDM interfaces include Loss of Signal (LOS), laser bias current, transmit optical power, and receive optical power. Calculation and accumulation of the performance monitoring data are supported in 15-minute and 24-hour intervals as per G.7710.

Physical system parameters measured at the wavelength level, such as mean polarization mode dispersion, accumulated chromatic dispersion, or received optical signal-to-noise ratio, are also included in the set of performance monitoring parameters. These can greatly simplify troubleshooting operations and enhance the set of data that can be collected directly from the equipment.

The DWDM card incorporates faceplate-mounted LEDs to provide a quick visual check of the operational status of the card. An orange circle is printed on the faceplate, indicating the shelf slot in which you can install the card.

Network applications

1.2 Tbps muxponder application (metro, long haul)

The Cisco NCS 2000 1.2 Tbps DWDM line card with QSFP28 and QSFP-DD provides a very efficient two-slot solution to transport on 16-QAM 400 Gbps traffic by using both 100/400 Gbps optical client ports, directly managed by the QSFP28 (both LR4, SR4, CWDM-4, SM-SR, FR-S) and QSFP-DD (DR-4, FR-4, LR-8, AOCxM) pluggable interface.

Multi-haul transport

By leveraging the trunk capabilities to configure each trunk with 200/300/400G DWDM, customers can get the benefit to cater to different needs in the network where 200G on one trunk caters to the Metro transmission and 400G on another trunk supporting Metro or DC-DC connectivities depending on the distance.

System requirements


Cisco NCS 2000



Shelf assembly

Cisco NCS2002, NCS2006, NCS2015

System software

Release 12.2 or later


The Cisco NCS 2000 1.2 Tbps DWDM line module features a licensing scheme allowing users to purchase only the functions they require.

The line card is available in two versions: an unlicensed version that includes all functions, and a licensed version that includes a subset of functions and bandwidth and is upgradable with feature-specific licenses.

The licensed version of the card supports the following functions:

     100 Gbps of client bandwidth

     Capability to use one trunk CFP2-DCO WDM with any trunk modulation format and line rate

Additional functions are offered through bandwidth license

     Additional 100G client bandwidth (up to a total of 1200G maximum available client bandwidth)

Product specifications

The table below provides the DWDM specifications for the Cisco NCS 2000 1.2 Tbps DWDM line module for both Trunk, Client, and Performance monitoring aspects of the system. CFP2-DCO Specifications can be referred at Cisco ONS Pluggable Datasheet: https://www.cisco.com/c/en/us/products/collateral/optical-networking/network-convergence-system-2000-series/pluggable-optical-modules-ds.html.

Table 1.           DWDM specifications



Baud rate

63 Gbaud ± 20 ppm

Automatic laser shutdown and restart

ITU-T G.664 (06/99)

Nominal wavelengths (λTnom)

Full-tunable between 1528.77 and 1567.13 nm (C-Band)

Optical Transmitter

-10 to +1 dBm


DP-QPSK modulation format

DP-8QAM modulation format

DP-16QAM modulation format

Table 2.           Performance monitoring parameters


Parameter Name









Number of background block errors



Background block error ratio



Number of errored seconds



Errored seconds ratio



Number of severely errored seconds



Severely errored seconds ratio



Number of unavailable seconds



Number of failure counts


Bit errors

Number of corrected bit errors


Uncorrectable words

Number of uncorrectable words


Trunk optical performance monitoring


Transmitter optical power



Transmitter laser bias current



Receiver optical power



Residual chromatic dispersion



Mean polarization mode dispersion



Optical signal-to-noise ratio, calculated with 0.5 nm RBW



Second Order PMD (SOPMD Estimation



Polarization Change Rate Estimation



Polarization Dependent Loss (PDL) Estimation


Table 3.           Line module specifications



Card LEDs

Failure (FAIL)

Active/standby (ACT/STBY)

Signal Fail (SF)




Client port LEDs (per port)

Active input signal


DWDM port LEDs

Active input signal

Output wavelength



Power (including pluggable)


320 W



Occupies 2 slot


2.78 kg

Reliability and availability

Mean Time Between Failures (MTBF)

425,560 hrs

Latency (end to end)

100GE to 400G Trunk

400GE to 400G Trunk

7 us


Storage temperature

-40°C to 70°C (-40°F to 158°F)

Operating temperature



0°C to 40°C (32°F to 104°F)

-5°C to 50°C (23°F to 131°F)

Relative humidity



5% to 85%, noncondensing

5% to 90% but not to exceed 0.024 kg water/kg of dry air

1 Short-term refers to a period of not more than 96 consecutive hours and a total of not more than 15 days in 1 year (a total of 360 hours in any given year, but no more than 15 occurrences during that 1-year period). The values shown are valid for M6 or M2 chassis.

Ordering information

Part Number



NCS2K 3x DDQSFP56, 5x QSFP28, 3x CFP2 WDM 1.2Tbps Muxponder


NCS2K 1.2Tbps Muxponder Licensed for 100G Client Bandwidth


100G client bandwidth


400G CFP2 DCO Multi-rate WDM C Band Tuneable


100Gbps multirate QSFP28, LR


100GBASE FR QSFP Transceiver, 2km over SMF


100GBASE SR4 QSFP transceiver, MPO, 100m over OM4 MMF


100GBASE CWDM4 Lite QSFP Transceiver, 2km over SMF, 10 - 60C

(Breakout with MPO-LC)

400G QSFP-DD Transceiver, 400GBASE-DR4, MPO-12, 500m parallel SMF


400G QSFP-DD Transceiver, 400G-FR4, Duplex LC, 2km Duplex SMF


400G QSFP-DD Transceiver, 400GBASE-LR8, Duplex LC, 10km Duplex SMF

QDD-400G-AOCxM x=1,2,3,5,7,15

400G QSFP-DD Transceiver, Active Optical Cable, 1, 2, 3, 5, 7, 10, 15 meters

Warranty information

The following warranty terms apply to the Cisco NCS 2002, NCS 2006, and NCS 2015, as well as services you may use during the warranty period. Your formal warranty statement appears in the Cisco Information Packet that accompanies your Cisco product.

     Hardware warranty duration: 5 years

     Software warranty duration: 1 year

     Hardware replacement, repair, or refund procedure: Cisco or our service center will use commercially reasonable efforts to ship a replacement part for delivery within 15 working days after receipt of the defective product at Cisco’s site. Actual delivery times of replacement products may vary depending on customer location.

Product warranty terms and other information applicable to Cisco products are available at https://www.cisco.com/go/warranty.

Product sustainability

The table below lists regulatory compliance information for the Cisco NCS 2000 1.2 Tbps DWDM line card. Note that all compliance documentation may not be completed at the time of product release. Please check with your Cisco sales representative for countries other than Canada, the United States, and the European Union.

Table 4.           Regulatory compliance

ANSI System

ETSI System

Countries and Regions Supported

  United States
  European Union
  European Union
  New Zealand
  Saudi Arabia
  South America

EMC (Class A)

  ICES-003, 2004
  GR-1089-CORE Issue 4, NEBS EMC and Safety, June 2006
  FCC 47CFR15, 2007
  ETSI EN 300 386 V1.4.1 (2008-04) Telecommunication network equipment EMC requirements ( Note: EMC-1)
  CISPR22:2008 and EN55022:2006/A1:2007 Information Technology Equipment (Emissions) (EMC-2)
  CISPR24: 1997/A1:2001/A2:2002 and EN55024:1998/A1:2001/A2:2003: Information Technology Equipment – Immunity characteristics – Limits and Methods of Measurement (test levels)


  CSA C22.2 #60950-1 – Edition 7, March 2007
  UL 60950-1 – Edition 2, March 2007
  GR-1089-CORE Issue 4, NEBS EMC and Safety, June 2006
  UL 60950-1 – Edition 2, March 2007
  IEC 60950-1 Information technology equipment Safety Part 1: General requirements – Edition 2, 2005 and National Differences as per CB Bulletin 112A
  IEC/EN 60950-1 (2006/10) with Amendment 11:2004 to EN 60950-1:2001, 1st Edition and National Differences as per CB Bulletin 112A
  EN 60950-1, Edition 2 (2006) Information technology equipment – Safety – Part 1: General requirements
  CE Safety Directive: 2006/95/EC


  UL 60950-1 – Edition 2, March 2007
  IEC 60825-1: 2001 Ed.1.2 (incl. am1+am2) Safety of laser products Part 1: Equipment classification, requirements and users guide
  IEC60825-2 Ed.3 (2004) Safety of laser products Part 2: Safety of optical fiber communication systems + A1:2006
  IEC 60825-1: 2001 Ed.1.2 (incl. am1+am2) Safety of laser products Part 1: Equipment classification, requirements and users guide
  IEC60825-2 Ed.3 (2004) Safety of laser products Part 2: Safety of optical fibre communication systems + A1:2006
  21CFR1040 (2008/04) (Accession Letter and CDRH Report) Automatic Laser Shutdown and restart (ALS) according to ITU-T G.664 (03/06). Guidance for Industry and FDA Staff (Laser Notice No. 50), June 2007
  Laser Products: Conformance with IEC 60825-1 and IEC 60601-2-22; Guidance for Industry and FDA Staff (Laser Notice No. 50), June 2007


  GR-63-CORE Issue 3,Network Equipment Building Standards (NEBS) Physical Protection, March 2006
  ETS 300-019-2-1 V2.1.2 (Storage, Class 1.1)
  ETS 300-019-2-2 V2.1.2 (1999-09): Transportation, Class 2.3
  ETS 300-019-2-3 V2.2.2 (2003-04):Operational, Class 3.1E


  GR-253-CORE – Issue 04
  ITU-T G.691
  ITU-T G.709
  ITU-T G.975


  TR-NWT-000332, Issue 4, Method 1 calculation for 20-year mean time between failure (MTBF)



  GR-1089-CORE Issue 4, NEBS EMC and Safety (June 2006) ( Note: NEBS-1)
  GR-63-CORE Issue 3, NEBS Physical Protection (March 2006) ( Note: NEBS-2)
  ATT-TP-76200: 2008
  ANSI T1.315-2001
  GR-499: 2004 Transport Systems Generic Requirements (TSGR): Common Requirements


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For more information

For more information about the Cisco NCS 2000, visit https://www.cisco.com/c/en/us/products/optical-networking/network-convergence-system-2000-series/index.html.

Document history

Table 5.           Document history

New or Revised Topic

Described In


New Datasheet with information on 1.2T DWDM line module

June 2021

Revised Optical specs and MTBF information

Receiver optical performance, Line module specification

August 2021





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