As a type of wavelength selective switching board, the DWSS20 board is used with the optical multiplexer and demultiplexer unit and optical add and drop multiplexing unit to implement wavelength grooming at the nodes in the DWDM network.

Initial Version:

8800 V100R012C00

9800 V100R005C10

Application

Mechanic Specifications

Weight(kg/lb)	Typical power consumption(W)	Max power Consumption (W)
2.5/5.51	24.0 W	36 W

Function

Function	Description
Basic function	Wavelength adding: adds any wavelengths from any directions through ports AM1 to AM20 and outputs the wavelengths through the OUT port. Wavelength dropping: receives optical signals from the main path through the IN port, drops wavelengths to any directions, and outputs them through ports DM1 to DM20. Supports 96 wavelengths and extended Cband.
Spectrum application	Supports flexible grid wavelength signals.
Online optical performance monitoring	Supported
Alarm and performance event monitoring	Supported
Optical-layer ASON	Supported

Optical Specification

Item	Unit	Value
Slice width	GHz	6.25
Total slice number (m)	-	772
Slice number per slot (n)	-	6 to 64
Centre frequency of every slice	THz	191.253125+(m-1) x 0.00625; m=1 to 772
Slot width	GHz	n x 6.25; n=6 to 64
Insertion loss	dB	AMx-OUT: ≤ 8 , IN-DMx: ≤ 8
Maximum channel insertion loss difference	dB	2.5
Port isolation	-dB	>25
Extinction ratio	dB	>=35
Reconfiguration time	second	<=3
Maximum reflectance	dB	-30
Directivity	dB	30
Attenuation range of each of wavelength	dB	0 to 15
Attenuation precision of each of adding wavelength	dB	≤ 1 (0 to 10 dB) ≤ 1.5 (> 10 dB)
Dimension	-	20

Slot

Two-slot board(the left-side one of 8800)
OptiX OSN 8800 T64 subrack	IU1-IU7, IU11-IU17, IU19-IU25, IU27- IU33, IU35-IU41, IU45-IU51, IU53-IU59, IU61-IU67
OptiX OSN 8800 T32 subrack	IU1-IU7, IU12-IU18, IU20-IU26, IU29- IU35
OptiX OSN 8800 T16 subrack	IU1-IU7, IU11-IU17
OptiX OSN 8800 universal platform subrack	IU1-IU15
6800	IU1-IU16

Two slots board (the left-side one of 9800)

OptiX OSN 9800 universal platform subrack: IU1-IU15