OSN8800 DWSS20 TN15DWSS20 TN52DWSS20 Dual 20-Port Wavelength Selective Switching Multiplexing and Demultiplexing Board

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Yantai Boxin International Trading Co., Ltd. supplies products to various telecom operators, meeting their needs for supplementing and expanding 2G/3G/4G/5G network stations.Our current equipment portfolio covers brands such as Nokia, Ericsson, Alcatel, Huawei, ZTE, ZTT, and FiberHome. 

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1.Product Overview

1.Basic information of the board

Attribute specification description

OptiX OSN 9800 series intelligent optical transmission platform (compatible with OSN 8800)

Board name: 20 port wavelength selection switch combined/split board (enhanced type)

The functional positioning and optical multiplexing/demultiplexing unit are combined to achieve wavelength level dynamic scheduling and guidance in DWDM network nodes, which is an enhanced version of TN51DWSS20

Type of board: Optical layer wavelength selection switch, combination/division board

Adaptation subrack OSN 9800 universal platform subrack, OSN 8800 T64/T32/T16 subrack, etc

Occupy 2 slots

Weight approximately 2.5 kg

Typical power consumption 25.0 W (estimated)

Maximum power consumption 37.0 W (normal operation at maximum ambient temperature)

Working temperature -5°C to+55°C

Key features: 20 port dynamic wavelength scheduling, 96/120 wavelength support, extended C+band, 6.25GHz flexible grid, VOA attenuation adjustment per wavelength, online optical performance monitoring, optical layer ASON support, enhanced data processing capability

2.Interface and Port Definition

Interface Identification Interface Type Quantity Function Description

AM1~AM20 LC/UPC 20 uplink port, can add any wavelength from any direction through this port and output from the OUT port

OUT LC/UPC 1 common output port, outputting multiplexed multi wavelength signals to the line side

IN LC/UPC 1 line input port, receiving multiplexed signals from the main optical path

DM1~DM20 LC/UPC 20 downstream port, from any direction of wavelength in the input signal downstream to the local receiver

3.Core functional characteristics

Functional Module Technical Description System Value

Dynamic wavelength scheduling supports adding any wavelength from AM1 to AM20 ports to the OUT port, as well as receiving signals from the IN port and routing them down to DM1 to DM20 ports to achieve a colorless, undirected, and non blocking all-optical switching network.It supports high-density scheduling of 20 ports

Flexible grid supports a minimum slice unit of 6.25GHz, supports flexible grid adjustment, complies with ITU-T G.694.1 standard to meet the transmission requirements of mixed rate services ranging from 100G to 800G, and maximizes spectrum utilization efficiency

Extended C+band supports working wavelength range coverage.Extended C+band (1524.50 nm -1572.06 nm) supports 120 waves @ 50GHz high-density DWDM system, meeting the demand for spectrum efficiency improvement

Compared to traditional models, the enhanced data processing model has increased network traffic processing capabilities by about 20%.The enhanced version supports better performance to achieve more efficient data transmission and traffic management, adapting to the needs of large networks

Each wavelength VOA adjustment supports independent attenuation adjustment for each routing wavelength, achieving power refinement control, optimizing nonlinear effects, and balancing channel performance

Online optical performance monitoring supports online monitoring function, which can monitor signal spectrum, optical power and other parameters in real time without interrupting business for optical layer performance diagnosis and optimization, greatly improving operation and maintenance efficiency

Optical layer ASON supports automatic switching of optical layers, providing basic support for intelligent optical networks and achieving automated wavelength level business scheduling and protection

4.Optical performance parameters

Table 1: Flexible Grid Parameters

Parameter Unit Specification Remarks

Minimum Slice Width GHz 6.25 Flexible Grid Minimum Adjustment Unit

Total number of slices - approximately 800 covering the full range of the extended C+band

The number of slices occupied by each channel is -6~64, which can be continuously occupied and supports different speed services

Table 2: Optical Channel Performance Parameters

Parameter Port/Condition Specification Remarks

Working wavelength range: all ports 1524.50 nm -1572.06 nm, extended C+band, supporting 120 wave system

Insertion loss AMx → OUT ≤ 8.0 dB Loss from the input port to the output port

Insertion loss IN →DMx ≤ 8.0 dB Loss from input to downstream port

Maximum channel insertion loss difference ≤ 2.5 dB between channels to ensure power balance among channels

Port isolation between adjacent/non adjacent>25 dB to suppress inter channel crosstalk

Extinction ratio - ≥ 35 dB -

Directionality -30 dB to prevent reverse light interference

Reconfigure time - ≤ 3 seconds wavelength scheduling response time

Maximum reflectivity -30 dB return loss characteristic for all ports

Table 3: On road wavelength attenuation adjustment parameters

Parameter specification remarks

The attenuation range of each wavelength is 0-15 dB, and each on road wavelength is independently adjustable

Attenuation adjustment accuracy ≤ 1 dB (0~10dB range) High precision adjustment within low attenuation range

Attenuation adjustment accuracy ≤ 1.5 dB (>10dB range) ensures performance within high attenuation range

5.Power consumption and mechanical parameters

Parameter specifications

Typical power consumption 25.0 W

Maximum power consumption 37.0 W (normal operation at maximum ambient temperature)

Weight approximately 2.5 kg

Occupy 2 slots

Working temperature -5°C to+55°C

Storage temperature -40°C to+70°C

The shell material is a metal body, which is corrosion-resistant and has excellent heat dissipation performance

6.Comparison with TN51DWSS20

Features TN51DWSS20 TN52DWSS20

Working band extension C-band extension C+band (1524.50-1572.06nm)

Supports 96 wavelengths @ 50GHz, 120 wavelengths @ 50GHz

Enhanced data processing capability standard (increased by about 20%)

Flexible Grid 6.25GHz Slice 6.25GHz Slice

Typical power consumption 24.0 W 25.0 W (estimated)

Application positioning based enhanced type, suitable for large enterprise networks

7.Application scenarios

Core Value of Application Scenario Deployment Method

Large enterprise/data center networks, as the core wavelength scheduling unit of large-scale networks, enhance data processing capabilities to meet high-capacity requirements

Large scale ROADM nodes serve as core wavelength routing units, supporting 20 port high-density scheduling in conjunction with multiplexing/demultiplexing units to meet the demand for multi-directional business aggregation

Flexible Grid DWDM Network deploys 6.25GHz fine grid to support bandwidth requirements of different rate services at nodes that require simultaneous support of 100G/200G/400G/800G mixed rate services

Deploying high-density systems in the extended C+band network supporting 120 waves @ 50GHz, compatible with the Super C+evolution route

Optical layer ASON intelligent network serves as a schedulable unit to achieve automated business scheduling and protection in networks that require optical layer intelligence characteristics

8.Maintenance and ordering information

Project Information

Component code TN52DWSS20

When placing an order, it is necessary to confirm the working band (extended C+band) and flexible grid configuration requirements; Support customized port configuration

On-site operation supports hot-swapping, occupying 2 slots.An anti-static wrist strap should be worn during operation, and attention should be paid to cleaning the fiber optic connector

After the installation of VOA configuration, VOA attenuation calibration needs to be performed through the network management to ensure control accuracy

The monitoring port uses the online monitoring function of the board to connect to the spectral analyzer and monitor the output spectrum in real time

After testing and verifying installation, insertion loss testing, port connectivity testing, wavelength scheduling function verification, VOA function verification, and grid configuration verification are required

Spare parts management, as the core board of large-scale ROADM nodes, is recommended to configure spare parts at critical network nodes

Core Summary:

TN52DWSS20 is an enhanced 20 port wavelength selective switch splitter for large-scale ROADM nodes in the OSN 9800/8800 platform. As an upgraded version of TN51DWSS20, it provides dynamic wavelength scheduling capabilities for 20 uplink and 20 downlink ports, and is the core component for building large-scale, multi-directional, and flexible grid all-optical networks.

Core values and positioning:

Enhanced data processing capability: Compared to traditional models, it increases network traffic processing capability by about 20%, meeting the high-capacity needs of large enterprise networks.

High density wavelength scheduling core: The 20 port design supports 120 wave @ 50GHz extended C+band systems, meeting the needs of large-scale business aggregation and diversion.

Flexible grid support: 6.25GHz minimum slice granularity, supporting fine spectrum allocation for any rate business from 100G to 800G, significantly improving spectrum utilization efficiency.

Extended C+band coverage: Operating wavelength range of 1524.50-1572.06nm, fully compatible with the OSN 9800 platform Super C+evolution route.

Intelligent operation and maintenance: providing online monitoring functions and optical layer ASON support, laying the foundation for intelligent optical networks.

Application suggestion:

This board is the core routing component for large-scale ROADM networks in the OSN 9800 wavelength division system, particularly suitable for scenarios that require high-density wavelength scheduling, enhanced data processing capabilities, flexible grid support, and extended C+band 120 wave capacity, such as large enterprise core networks, multi-directional business hubs, and large-scale data center interconnection. When deploying, it is necessary to combine the iMaster NCE intelligent control system to achieve automated operation and maintenance of the optical layer and dynamic management of spectrum resources.