Provision Optical Add/Drop Cards

This chapter describes the Optical Add or Drop (ROADM) cards used in Cisco NCS 2000 SVO and its related tasks.

The following table lists the package support for the optical add/drop cards.

16-AD-CCOFS Card

In this chapter, "16-AD-CCOFS" refers to the NCS2K-16-AD-CCOFS card.

The 16-AD-CCOFS card is a single slot add or drop card that provides colorless, contentionless, omnidirectional, and flex spectrum capability on 16 channels over 4 ROADM directions. The card receives the same wavelength from 16 transponder cards and forwards it to different ROADM nodes without collision. This capability is achieved using multicast switches. 2 or 3 16-AD-CCOFS cards can be connected using upgrade ports to provide the add/drop capability on 16 channels over 8 or 12 ROADM directions respectively.

Each add/drop port pair in the card is:

  • Colorless - forwards any wavelength on a specific port

  • Contentionless - adds/drops the same wavelength from the same add/drop section to different directions

  • Omnidirectional - connects to both the add and drop directions

The 16-AD-CCOFS card can be installed in any service slots in the Cisco NCS 2006 and NCS 2015 chassis. The 16-AD-CCOFS card works only in the Cisco NCS Flex node.

Key Features

  • Has a 16x4 multiplexer and a 4x16 demultiplexer.

  • Monitors optical power on the input ports through optical photo diodes and raises alarms when the threshold is exceeded.

  • Supports tone detection on the input ports in the add direction.

  • Provides a multicast switch that does not block any wavelength and does not have any optical filtering element.

  • Has fixed gain EDFA amplifiers in the add or drop directions to compensate for high optical insertion loss. The gain is -1 dB in the drop direction and -2 dB in the add direction.

For more information about the 16-AD-CCOFS card, such as the block diagram and card specifications, see the data sheet.

Provision Interface Parameters

Use this task to change the optical interface parameters of the 16-AD-CCOFS and 6AD-DD-CFS cards.

Before you begin

Procedure

Step 1

Click the Provisioning > Interface tabs.

Step 2

Modify the settings described in the following table. The provisionable parameters are listed in the Options column in the table.

Table 1. Interface Options

Parameter

Description

Options

Port

(Display only) Displays the port number, port type, and direction (RX or TX)

All the RX and TX ports

Admin State

(Display only) Displays the administrative state of the port.

From the drop-down list, choose one of the following:

  • Unlocked (ETSI)/ IS (ANSI)

  • Locked, disabled (ETSI)/OOS, DSBLD (ANSI)

  • Locked, maintenance (ETSI)/OOS, MT (ANSI)

  • Unlocked, automaticInService (ETSI)/ IS, AINS (ANSI)

Service State

(Display only) Identifies the autonomously generated state that gives the overall condition of the port. Service states appear in the format: Primary State-Primary State Qualifier, Secondary State.

  • IS-NR/

    Unlocked-enabled

  • OOS-AU,AINS/

    Unlocked-disabled,
automaticInService

  • OOS-MA,DSBLD/

    Locked-enabled,disabled

  • OOS-MA,MT/

    Locked-enabled,maintenance

Optical Power (dBm)

Displays the optical power for each port.

—

Optical PSD Setpoint (dBm/GHz)

Target output PSD requested by the user.

—

Attenuator Value (dB)

Sets the attenuator value.

—

Optical Power Threshold Low (dBm)

Fail low threshold used to detect the LOS alarm on the port.

—

Current Power Failure Low (dBm)

(Display only) Shows the optical power failure low threshold for the port.

—

Current Power Degrade High (dBm)

(Only for 16-AD-CCOFS card)

(Display only) Shows the current value of the optical power degrade high threshold configured in the card.

Power Degrade High refers to the Signal Output Power value of the port and is automatically calculated by the control card.

—

Current Power Degrade Low (dBm)

(Only for 16-AD-CCOFS card)

(Display only) Shows the current value of the optical power degrade low threshold configured in the card.

Power Degrade Low refers to the Signal Output Power value of the port and is automatically calculated by the control card.

—

Step 3

Click Apply to save the changes.

Provision Thresholds for TCA alarms

Use this task to change the thresholds for TCA alarms raised on the 16-AD-CCOFS and 6AD-DD-CFS cards.

Before you begin

Procedure

Step 1

Click the Provisioning > Optics Thresholds tabs.

Step 2

Choose the type of threshold that you want to change, 15 Min or 1 Day.

Step 3

Modify the settings described in the following table. The provisionable parameters are listed in the Options column in the table.

Table 2. Threshold Options

Parameter

Description

Options

Interface Name

(Display only) Displays the port number, port type, and direction (RX or TX)

All the TX and RX ports

PM Type

Type of interface

opticalPowerPMTh

Low

Sets the low power warning level.

Numeric. The default is -50 dBm. Double-click the parameter, enter a value, and press Enter.

High

Sets the high power warning level.

Numeric. The default is 30 dBm. Double-click the parameter, enter a value, and press Enter.

Step 4

Click Apply to save the changes.

Provision Optical Safety

Use this task to provision the optical safety parameters of the 16-AD-CCOFS card.


Note

This task is not applicable for the 6AD-DD-CFS card.

Before you begin

Procedure

Step 1

Click the Maintenance > Optical Safety tabs.

Step 2

Modify required settings described in the following table:

Table 3. Optical Safety Parameters for Cards

Parameter

Description

Options

Interface

(Display only) Displays the port name, port type, and direction.

—

Supported Safety

(Display only) Displays the supported safety mechanism.

  • ALS for line cards and control cards.

  • ALS-OSRI for amplifier cards.

ALS Mode

Automatic laser shutdown mode. The ALS mode is disabled for RX ALS interfaces.

From the drop-down list, choose one of the following:

  • ALS-Disabled—Deactivates ALS.

  • Automatic Restart—(Default) ALS is active. The power is automatically shut down when needed, and it automatically tries to restart using a probe pulse until the cause of the failure is repaired.

  • Manual Restart

OSRI

Optical safety remote interlock. The default value is OSRI-OFF. When set to OSRI-ON, the TX output power is shut down.

Note

 

OSRI configuration is not supported on the transponder and muxponder cards.

From the drop-down list, choose one of the following:

  • OSRI-OFF

  • OSRI-ON

ALS Status

(Display only) ALS status of the device.

  • Working

  • Shutdown

Recovery Pulse Interval

Displays the interval between two optical power pulses.

60 to 300 seconds.

Recovery Pulse Duration

Displays the duration of the optical power pulse that begins when an amplifier restarts.

2 to 100 seconds

Manual Restart

Triggers manual restart action for the ALS interface. However, manual restart does not happen if Mode is set to Automatic Restart or Disabled.

—

Step 3

Click Apply to save the changes.

View Insertion Loss Parameters

Use this task to view the insertion loss parameters of the 16-AD-CCOFS and 6AD-DD-CFS cards.

Before you begin

Procedure

Click the Maintenance > Insertion Loss tabs to view the insertion loss parameters.

The Insertion Loss tab displays the following information:

  • Insertion Loss Path—Displays the insertion loss path.

  • IL Value (dB)—Displays the insertion loss value.

Note

 

When the card is removed, the last retrieved Insertion Loss values are displayed in the SVO web UI. When the card is replaced, the Insertion Loss values are updated in the SVO web UI.

Collect Failure Logs

Use this task to collect the failure log information for the 16-AD-CCOFS and 6AD-DD-CFS cards. This task can be used to debug the cards before RMA.

Before you begin

Procedure

Right-click the card and choose OBFL to collect the On Board Failure Logs (OBFL).

The failure log information is displayed in the Maintenance > OBFL Status tabs.