1x4 Flex ROADM - bccshop.fi

XTM Series

1x4 Flex ROADMTechnical Description1x4 ROADM-F

TD-1x4ROAD

M-F

Rev B | 2017-06-28

Copyright

© Copyright 2017 Infinera Corporation. All rights reserved.

This Manual is the property of Infinera Corporation and is confidential. No part of this Manual may be reproduced forany purposes or transmitted in any form to any third party without the express written consent of Infinera.

Infinera makes no warranties or representations, expressed or implied, of any kind relative to the information or anyportion thereof contained in this Manual or its adaptation or use, and assumes no responsibility or liability of any kind,including, but not limited to, indirect, special, consequential or incidental damages, (1) for any errors or inaccuraciescontained in the information or (2) arising from the adaptation or use of the information or any portion thereofincluding any application of software referenced or utilized in the Manual. The information in this Manual is subject tochange without notice.

Trademarks

Infinera, Infinera Intelligent Transport Networks, I-PIC, IQ NOS, FlexILS, DTN-X, DTN, ATN, FastSMP and logos thatcontain Infinera are trademarks or registered trademarks of Infinera Corporation in the United States and othercountries. All other trademarks in this Manual are the property of their respective owners.

Infinera DTN-X, DTN, FlexILS, Cloud Xpress, XT and ATN Regulatory Compliance

FCC Class A

This device complies with Part 15 of the FCC rules. Operation is subject to the following two conditions: (1) thisdevice may not cause harmful interference, and (2) this device must accept any interference received, includinginterference that may cause undesired operation. Modifying the equipment without Infinera's written authorizationmay result in the equipment no longer complying with FCC requirements for Class A digital devices. In that event,your right to use the equipment may be limited by FCC regulations, and you may be required to correct anyinterference to radio or television communications at your own expense.

DOC Class A

This digital apparatus does not exceed the Class A limits for radio noise emissions from digital apparatus as set out inthe interference-causing equipment standard titled “Digital Apparatus," ICES-003 of the Department ofCommunications.

Cet appareil numérique respecte les limites de bruits radioélectriques applicables aux appareils numériques deClasse A prescrites dans la norme sur le matériel brouilleur: "Appareils Numériques," NMB-003 édictée par leMinistère des Communications.

Class A ITE

This is a Class A product based on the standard of the VCCI Council. If this equipment is used in a domesticenvironment, radio interference may occur, in which case, the user may be required to take corrective actions.

Warning

This is a class A product. In a domestic environment this product may cause radio interference in which case the usermay be required to take adequate measures.

FDA

This product complies with the DHHS Rules 21CFR 1040.10 and 1040.11, except for deviations pursuant to LaserNotice No. 50,dated June 24, 2007.

Technical AssistanceCustomer Support for Infinera products is available, 24 hours a day, 7 days a week (24x7).For information or assistance with Infinera products, please contact the Infinera TechnicalAssistance Center (TAC) using any of the methods listed below:• Email: [email protected]• Telephone:

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TD-1x4ROADM-F Rev B | 2017-06-28 IV

Infinera Proprietary and Confidential

CONTENTS

Contents1 Introduction.........................................................................................................................1

1.1 Document Revision History.........................................................................................12 1x4 ROADM—F Basic Functionality......................................................................................2

2.1 Channel plan and filters ..............................................................................................32.2 Flexgrid prepared.......................................................................................................52.3 Alarms ......................................................................................................................62.4 Placement in card cage ..............................................................................................6

3 Application Examples ..........................................................................................................13.1 Linear Add/Drop Node................................................................................................13.2 Multidimensional Node ...............................................................................................23.3 Direction-/color-less Node ..........................................................................................3

4 ENM GUI............................................................................................................................44.1 Subracks view ...........................................................................................................54.2 Verbose mode ...........................................................................................................64.3 Board settings ...........................................................................................................74.4 Network Element Parameters .....................................................................................8

5 1x4 ROADM Settings in ENM GUI ........................................................................................95.1 Add/Drop Tab ..........................................................................................................105.2 Line Tab ..................................................................................................................125.3 Channel Tab ............................................................................................................135.4 ROADM-ROADM Tab ..............................................................................................14

6 Mechanical Layout ............................................................................................................167 Technical Data ..................................................................................................................17

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1 IntroductionThis manual provides an overview of the 1x4 Flexgrid Reconfigurable Optical Add/Drop Multi-plexer (1x4ROADM-F).

1.1 Document Revision HistoryTable 1 Document Revision History

Revision Date Description of changesA 2017-01-18 First version for 1x4 Flex ROADMB 2017–06–28 Corrected figure on power consumption

INTRODUCTION

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2 1x4 ROADM—F Basic FunctionalityThe 1x4ROADM-F is a single slot plug-in unit, providing a cost-effective and compact solutionfor dynamic networking. The 1x4ROADM-F enables hitless changes in wavelength allocation,based on a Wavelength Selective Switch (WSS) technology.

Fig. 1 Schematic principle of a 4 port ROADM add/drop function

The 1x4ROADM-F has 4 individual add/drop ports, each dynamically tunable in the add direc-tion to an individual selection of spectral bandwidth. The selection is made remotely by nodeor network management software. In the drop direction, the unit has a built-in Optical CouplerUnit broadcasting the carried channels on all drop ports.

All added channels can be individually attenuated by a built-in Variable Optical Attenuator(VOA), which facilitates channel power balancing in amplified networks.

The 1x4ROADM-F can be combined with any of the Transponders and Muxponders in the In-finera XTM Series.

The 4 individual add/drop functions enable multidimensional networking by arranging a num-ber of ROADM’s in various combinations in the same node. Thus, wavelength routing in up to4 dimensions could be possible.

Fig. 2 Block diagrams of 1x4 ROADM-F

Table 2 Defintions

Line [9,10] The transmit and receive ports directed towards the line fiber carrying the multiplexed channels from/to all Add/Drop ports.

OCU An optical 1x4 coupler. All incoming channels from the multiplexed line signal are distributed to everydrop port with an optical power coupling ratio of 25%

WSS Wavelength Selective Switch, a tuneable drop-filter with 4 add ports. All ports can be individuallytuned over the ITU-T C-band grid. Thus one can dynamically select the channels that can be addedper port. The WSS blocks all other channels that are not included in the add ports channel combina-tion. A selected channel is automatically blocked from any other add port. Attenuation can be set perindividual channel by the VOA function.

A/D[1,2,3,4,5,6,-7,8]

Add and drop ports, the add ports are connected to the WSS and the drop ports are connected to theOCU.

1X4 ROADM—F BASIC FUNCTIONALITY

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2.1 Channel plan and filtersThe 1x4ROADM—F contains a WSS that is capable of Flexgrid support. However, in releaseR28 the unit supports allocation of the fixed 80 channels on ITU-T 50GHz C-band grid corre-sponding to the Infinera XTM Series DWDM channel plan. The support for flexgrid is plannedfor a future release.

Table 3 Mapping of even 50GHz DWDM channels and Table 4 Mapping of odd 50GHz DWDMchannels describes the channel plan for 50Ghz DWDM networks.

More information regarding filters can be found in Dimensioning guidelines in the SystemManual Volume A.

Table 3 Mapping of even 50GHz DWDM channels

40ch MDUEven channels

WavelengthTHz

Channel-number

4ch AD-filtersEven channels

8ch MDU’sEven channels

BSU1X5/EVEN50G

MDU40/50G-EVEN 191.9 919 AD4/50G-E/919 MDU8EE919-926 Band 1192.0 920192.1 921192.2 922192.3 923 AD4/50G-E/923192.4 924192.5 925192.6 926192.7 927 AD4/50G-E/927 MDU8EE927-934 Band 2192.8 928192.9 929193.0 930193.1 931 AD4/50G-E/931193.2 932193.3 933193.4 934193.5 935 AD4/50G-E/935 MDU8EE935-942 Band 3193.6 936193.7 937193.8 938193.9 939 AD4/50G-E/939194.0 940194.1 941194.2 942194.3 943 AD4/50G-E/943 MDU8EE943-950 Band 4194.4 944194.5 945194.6 946194.7 947 AD4/50G-E/947194.8 948194.9 949195.0 950195.1 951 AD4/50G-E/951 MDU8EE951-958 Band 5195.2 952195.3 953195.4 954195.5 955 AD4/50G-E/955195.6 956195.7 957195.8 958


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Table 4 Mapping of odd 50GHz DWDM channels

40ch MDUOdd channels

WavelengthTHz

Channel-number

4ch AD-filtersOdd channels

8ch MDU’sOdd channels

BSU1X5/ODD50G

MDU40/50G-ODD 191.85 9185 AD4/50G-O/9185 MDU8EO9185-9255

Band 1191.95 9195192.05 9205192.15 9215192.25 9225 AD4/50G-O/9225192.35 9253192.45 9245192.55 9255192.65 9265 AD4/50G-O/9265 MDU8EO9265-

9335Band 2

192.75 9275192.85 9285193.95 9295193.05 9305 AD4/50G-O/9305193.15 9315193.25 9325193.35 9335193.45 9345 AD4/50G-O/9345 MDU8EO9345-

9415Band 3

193.55 9355193.65 9365193.75 9375193.85 9385 AD4/50G-O/9385194.95 9395194.05 9405194.15 9415194.25 9425 AD4/50G-O/9425 MDU8EO9425-

9495Band 4

194.35 9435194.45 9445194.55 9455194.65 9465 AD4/50G-O/9465194.75 9475194.85 9485194.95 9495195.05 9505 AD4/50G-O/9505 MDU8EO9505-

9575Band 5

195.15 9515195.25 9525195.35 9535195.45 9545 AD4/50G-O/9545195.55 9555195.65 9565195.75 9575

Since the 1x4ROADM-F uses an OCU in the drop direction, a filter, another ROADM or a col-orless MDU is required to separate the wavelengths to the receiver.


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2.2 Flexgrid preparedThe 1x4ROADM—F is hardware prepared to support Flexgrid applications. The support forFlexgrid will be added in a future release as a software upgrade included in the normal soft-ware upgrade procedure.

Flexgrid is essentially the ability to allocate a reconfigurable flexible passband on the WSSports. This feature will enable the ROADM to change the bandwidth structure to pass opticalcarrier signals that are broader than the signals normally carried within a 50GHz passband(33 Gbaud). This can be used to transfer for instance single carrier wavelengths that uses abroader spectrum for its modulation, or to support superchannels where several carrier wave-lengths are packed close together to increase the total bandwidth utilization.

The emerging modulation formats for higher transmission speed will require a flexible photoniclayer to support the transmission of both broader carriers and superchannels. The1x4ROADM-F can be installed in networks today with the support of fixed 50GHz channels,and later be upgraded to support flexgrid applications when required.

From release R28, the 1x4ROADM-F supports 50GHz spacing per default in a predefinedchannel plan. The WSS hardware supports bandwidth slicing down to 12.5GHz. Thus, a50GHz passband consists of 4x12.5GHz slices to match the central frequency and requiredbandwidth for the current and planned 10Gbps, 100Gbps and 200Gbps signals in the XTMSeries. For the future flexgrid application, the passbands can be constructed of an arbitrarynumber of 12.5GHz slices to match the required bandwidth of a broad single carrier or asuperchannel

Fig. 3 Example of the current fixed grid passband structure of the 1x4ROADM-F

Fig. 4 Example of a flexgrid setting of the 1x4ROADM-F passband structure


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2.3 AlarmsThe 1x4ROADM-F unit can generate a number of alarms. Alarms can be blocked by settingthe unit in Administrative status in down or service. See .

See Alarm Overview within the System Manual, Volume C for more details on alarms, severitylevels and corresponding LED indicators.

2.4 Placement in card cageThe1x4ROADM-F unit is regarded as an active unit and can be placed in an active slot in theTM-3000, TM-301, TM-3000/II or TM-301/II. (slot 2 to 16) chassis. It occupies one full-sizeslots.


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3 Application ExamplesThere are several ways to implement the 1x4ROADM-F in a network. The following examplesgive an idea of the more common configurations, the linear add/drop node and the multidi-mensional node. For more information on network design, see Dimensioning guidelines in theSystem Manual Volume A.

3.1 Linear Add/Drop NodeA linear add/drop node in a bus or ring network can be created by combining two1x4ROADM-F units as shown in the figure below. One ROADM unit faces the westbound di-rection and the other the east direction.

Fig. 5 Linear ROADM node example

The figure shows how one of the A/D-interfaces is used for the express traffic. The three re-maining interfaces on each 1x4ROADM-F unit are available for local add-drop traffic or to en-able a later expansion to a multidimensional node. A number of DWDM filters are available forseparation of the locally terminating channels before they are connected to a Traffic unit.

Please note that in order to support both even and odd 50GHz channels on a single ROADMport, an Optical Interleaver Unit (OIU) is required to combine the fixed filters

APPLICATION EXAMPLES

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3.2 Multidimensional NodeThe 1x4 ROADM unit enables creation of a multidimensional ROADM node. By combiningand connecting four 1x4ROADM-F units as shown in the figure below, a 4-dimensionalROADM node is created where traffic from any line can be directed to any other line, or be lo-cally dropped. A DWDM filter is connected to the local A/D interfaces in a similar manner asshown in the previous chapter.

Fig. 6 Four-dimensional ROADM node


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3.3 Direction-/color-less NodeTo provide the ability to dynamically inject a wavelength in any of the four line directions, a di-rection-less configuration is required. This is provided by adding yet another ROADM unit tothe four local add/drop interfaces as shown in Fig. 7 Four-dimensional direction-less ROADMnode.

Fig. 7 Four-dimensional direction-less ROADM node

The added wavelengths can then be switched to any of the ROADM units connected to theline fibers. The example configuration above can be converted into a combined directionlessand colorless ROADM node by by replacing the MDU40 unit with a colorless MDU (MDU16-CL/50G).


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4 ENM GUIThere are two options to manage a Network Element, via a graphical web-based user inter-face (GUI) or via a Command Line Interface (CLI). See Command Line Interface Guide withinthe Installation & Commissioning volume of the System Manual for more details on the CLIoption.

The GUI is launched using an Internet Browser and then entering the IP-address of the NE.After login the initial view is the Subracks view. The appearance will differ depending on thechassis and how it is configured. Fig. 8 Subracks – Main view shows the view presented whenlogging in to a TM-3000 chassis.

Fig. 8 Subracks – Main view

There are three main areas from which the node can be managed.

The left area is a menu always available in the browser. Clicking the Subracks or the logotypein the left top corner brings back the starting page where all the traffic units can be seen.

The top area is updated dynamically and shows the number of alarms and the highest severityamong them.

The main area is the equipment area. This area is changed according to selections made fromother areas.

Some items will change color to reflect alarm status, for example the fan and power areas.When hovering over a plug-in unit, the CLI name will appear as a tool-tip. For more informationon items and menu links, see section 4.1 Subracks view.

ENM GUI

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4.1 Subracks viewThis section gives an overview of the information areas as well as clickable areas in the mainwindow.

Fig. 9 Information and Configuration areas in Subracks view

The Chassis tab indicates the chassis type. If several chassis are connected into a single NEentity, the included chassis will be found under separate tabs. A Control Unit (CU) is requiredto connect multiple chassis into one NE. It is not possible to combine multiple TM-102II, TM-102, TM-101 chassis in this way since a CU is not used in these type of configurations.

Board Missing is shown if a slot is not equipped with a unit type it has been configured for.

Unexpected is shown if a slot is equipped with another unit type than it has been configuredfor.

Not Configured is shown for slot that is equipped with a unit but has not yet been configured.

It is possible to configure a slot before a unit is inserted. When the slot is configured the slotwill show Board Missing until the correct unit type is inserted.

Save changes color when there are unsaved changes in the configuration.

If there are unsaved changes a warning is presented upon logout from ENM where it is possi-ble to save, leave unsaved or cancel the logout. All unsaved configurations will be lost if thenode is rebooted.

Non used interfaces on traffic units are indicated with a transparent mask.

ENM GUI

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4.2 Verbose modeThe ENM GUI can be set in two modes where different depth of information is presented.Clicking Settings in the lower right corner enables changes to the browser view.

For normal operation of a NE the browser shall be set in Verbose mode off. This will presentthe most relevant information and settings, and provides a more compact display of the differ-ent windows.

Fig. 10 Verbose mode

The default setting for Verbose mode is off. Select Settings and Verbose mode and clickOK to activate Verbose mode. Some configurations can only be done with the verbose modeactivated, this will vary from unit to unit.

It is recommended to deactivate verbose mode when necessary configurations have beendone.

ENM GUI

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4.3 Board settingsWhen clicking on the lower part of a configured board a number of menu tabs containing infor-mation and configuration parameters are shown.

Fig. 11 Board view

The information is structured in two levels having a set of main menu tabs and sub-menu tabs.

Some views have a series of buttons at the bottom.

Fig. 12 ENM buttons

Apply Performed changes are activated (note that the change is not saved).

Clear Clear all unsaved changes on the page.

Multi Set Enables setting of multiple parameters.

View Table All related and relevant data is listed in a table format.

Help Help texts for the configuration parameters.

Create Opens a Create dialog for adding new configuration objects in the currentview.

ENM GUI

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Delete Deletes selected configuration objects.

Refresh Updates the page.

4.4 Network Element ParametersWhen a node is to be commissioned for the first time, a number of configuration steps must betaken on both NE and board level. To ease this process a Getting started guide presents a ser-ies of steps where configuration data is entered.

The NE related configuration is activated via the menu item Getting started. Typical NE re-lated data is:• DNS and Node Name• IP address• Default Gateway• Date and time (NTP)• SNMP Traps• Passwords• Radius and Tacacs+ settings• Backup and upload settingsThe entered values are saved and activated when clicking Apply after the last step. The pa-rameters can also be set using the menus and tabs under theManagement network menuitem.

The configuration parameters related to the boards is set when creating a board.

ENM GUI

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5 1x4 ROADM Settings in ENM GUIA number of functions in the Embedded Node Manager (ENM) are provided to support net-working with 1x4 ROADM:• ROADM-ROADM grouping: This feature groups two interfaces on separate 1x4 ROADM

units in the same node. The grouping as pairs will make changes on one interface apply tothe other interface in the same group. This eases the configuration work and will preservethe wavelength integrity of the ROADM node. See .

• Allocated channel range: This parameter can be used to allocate a certain wavelengthband to ROADM nodes. This prevents an operator to accidentally configure an add/drop ofa wavelength that already is used by another ROADM node.

shows the tabs that are presented for the 1x4 ROADM.

Fig. 13 Overview tab

Administrative status can be set to up, down or “service. If set to down the WSS-block willturn black, i.e. no wavelengths will pass through the add interfaces. Wavelengths passingthrough the OCU-block and drop interfaces will pass through regardless of Administrativestatus setting.

The “service” setting will block any alarms from the unit, but without affecting any wavelengthsettings.

1X4 ROADM SETTINGS IN ENM GUI

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5.1 Add/Drop Tab

Fig. 14 Add/Drop Tab

The Add/drop tab gives an overview of the add-drop interfaces, displaying the allocated chan-nels per add-drop port.

You can block the complete add port by setting the Administrative status to down.

By clicking on one of the add-drop ports, a menu will exapnd letting the operator do settingson the add-drop port

Fig. 15 Expanded add-drop tab


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A couple of selections exist allowing the user to configure the add-drop port:• Configure allocated range: Allows the user to set restrictions on the available range of

channels that can be added to the port• Add channel: Allows the user to add channels to the port• Remove channel: Allows the user to remove channels from the port• Remove all channels: Allows the user to remove all channels from the port• Set attenuation: Allows the user to set a generic attenuation applied on all channels on

the port. Will not affect channels controlled by the Optical Control Loop. Mainly used for ex-press traffic

• Adjust attenuation delta: Allows the user to increase or decrease the generic attenuationon the port.

• Add all available channels: Allows the user to add all remaining free channels to the port• Set channel administrative status: Allows the user to set admin status on alll channels

on the port


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5.2 Line Tab

Fig. 16 Line Tab

Overview of the line interface. A channel list will be displayed.

You can block the complete line port by setting the Administrative status to down.

By clicking on the line port, a menu will exapnd letting the operator do settings on the line port

Fig. 17 Expansion tab

A couple of selections exist allowing the user to configure the line port:• Set attenuation: Allows the user to set a generic attenuation applied on all channels on

the port. Will not affect channels controlled by the Optical Control Loop.• Adjust attenuation delta: Allows the user to increase or decrease the generic attenuation

on the port.• Set channel administrative status: Allows the user to set admin status on all channels on

the port


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5.3 Channel Tab

Fig. 18 Channel Tab

The channel tab displays the individual channel settings. You can block an active allocatedchannel by changing the “Administrative status” to down, but you will get a warning that thismight be traffic affecting.

The individual attenuation per channel can be adjusted in steps of 0.1dB from 0 to 15dB.Connected displays the corresponding add-drop interface for the selected channel.

The XC button lets you select an individual channel and add that channel to a specific port.


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5.4 ROADM-ROADM Tab

Fig. 19 ROADM-ROADM Tab

When a ROADM-ROADM group is established between two add-drop interfaces on different1x4 ROADM—F units no configurations on the add-drop interfaces can be done via the Add/drop tabs of the respective units. Instead, settings are made in the ROADM-ROADM tab andwill apply to both units.

To create a ROADM-ROADM group simply click create at the bottom of the GUI and a pop upwill be displayed. The GUI proposes the first free add-drop interfaces of the current ROADMunit and suggests a connection to the first available ROADM interface of the first otherROADM located in the same node. The user can select the correct interface by the dropdowns

Fig. 20 Create a ROADM-ROADM group

By clicking the ROADM—ROADM group the tab will expand and allow settings for the portspaired in the ROADM-ROADM group


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Fig. 21 Configure ROADM-ROADM

A couple of selections exist allowing the user to configure the ROADM-ROADM group. Notethat all changes will apply to both the ports on the separate ROADM units that are paired inthat ROADM-ROADM group. On the same time, these commands can not be executed andwill be blocked on the individual add-drop tabs:• Configure allocated range: Allows the user to set restrictions on the available range of

channels that can be added to the port• Add channel: Allows the user to add channels to the port• Remove channel: Allows the user to remove channels from the port• Remove all channels: Allows the user to remove all channels from the port• Add all available channels: Allows the user to add all remaining free channels to the port


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6 Mechanical Layout

Fig. 22 1x4 ROADM-F

MECHANICAL LAYOUT

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7 Technical DataThis section lists the technical data for 1x4ROADM-F.

Table 5 Technical Data 1x4ROADM-F

Parameter ValueInsertion loss Add [A/D Rx] - [Line Tx] :

max 6.5dBDrop [Line Rx] - [A/D Tx] :max 7.1dBExpress [Line Rx] — [Line Tx]:max 13.6dB

No of add-drop channels 80 @ 50GHz spacingFlexgrid prepared (12.5GHz resolution)

No of add-drop interfaces 4Variable Optical Attenuator On add channels

0-15dB step size 0.1dBSwitching time 3000ms maxWeight 1.6kgPower consumption (max) 20WMonitor port N/A

Fig. 23 Express loss

Table 6 Product Revision Data

Product number Rev Introduced Release Comment1x4ROADM-F R1A 28.0 1st released version.

TECHNICAL DATA

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