Provisioning Optical Amplifier Cards

This chapter describes the optical amplifier cards used in Cisco NCS 2000 SVO and its related tasks.

Table 1. Feature History

Feature Name

Release Information

Feature Description

OPT-AMP-17-C and OPT-BST-E Cards

Cisco NCS 2000 Release 12.3

The OPT-AMP-17-C card can be used as a preamplifier or as a booster amplifier, providing a total output power of 17 dBm. It integrates an optical service channel splitter and combiner to allow the OSC to be sent to and received from the OSCM card. It employs a single-stage amplifier design to optimize the noise figure and operates with a fixed gain of 17 dB.

The OPT-BST-E card amplifies the outgoing composite DWDM signal to overcome the attenuation of the fiber network, providing a total output power of 20 dBm. It integrates an optical service channel splitter and combiner to allow the OSC to be sent to and received from the OSC-CSM card and/or the OSC derived from the control cards.

OPT-PRE and OPT-BST Cards

Cisco NCS 2000 Release 12.2

The OPT-PRE card amplifies the incoming composite DWDM signal to allow sufficient optical power level to optical receivers on dropped wavelengths. It overcomes the insertion losses of the reconfigurable or fixed optical filters in the node.

The OPT-BST card amplifies the outgoing composite DWDM signal to overcome the attenuation of the fiber network, providing a total output power of 17 dBm. It integrates an optical service channel splitter and combiner to allow the OSC to be sent to and received from the OSC-CSM card.

Both the cards can be installed in NCS 2006 and NCS 2015 chassis.

OPT-AMP-C Card

In this chapter, "OPT-AMP-C" refers to the _15454-OPT-AMP-C card.

The OPT-AMP-C card is a 20-dB output power, C-band, DWDM EDFA amplifier or preamplifier. It contains midstage access loss for a Dispersion Compensation Unit (DCU). A Variable Optical Attenuator (VOA) is used to control gain tilt. The VOA can also be used to attenuate the signal of the DCU to a reference value. The amplifier module also includes the OSC add (TX direction) and drop (RX direction) optical filters.

The features of the card include:

  • Fast transient suppression

  • Nondistorting low-frequency transfer function

  • Mid-stage access for DCU

  • Constant pump current mode (test mode)

  • Fixed output power mode

  • Constant gain mode

  • Amplified spontaneous emissions (ASE) compensation in Constant Gain and Constant Output Power modes

  • Programmable tilt

  • Full monitoring and alarm handling capability

  • Gain range with gain tilt control of 12–24 dB

  • Extended gain range (with uncontrolled tilt) of 24–35 dB

  • Full monitoring and alarm handling with settable thresholds

  • Optical Safety Remote Interlock (OSRI)—Shuts down optical output power or reduces the power to a safe level

  • Automatic laser shutdown (ALS)—Safety mechanism used in case of fiber cut

You can install the OPT-AMP-C card in the following slots:

  • Slots 2–7 in NCS 2006

For more information about the OPT-AMP-C card, see http://www.cisco.com/en/US/prod/collateral/optical/ps5724/ps2006/prod_data_sheet0900aecd8072b322.html. and Card Features.

OPT-EDFA-17, OPT-EDFA-24, and OPT-EDFA-35 Cards

In this chapter, "OPT-EDFA-17" refers to the _15454-OPT-EDFA-17 card. "OPT-EDFA-24" refers to the _15454-OPT-EDFA-24 card. "OPT-EDFA-35" refers to the NCS2K-OPT-EDFA-35 card.

The OPT-EDFA-17, OPT-EDFA-24, and OPT-EDFA-35 cards are C-band DWDM EDFA amplifiers and preamplifiers. The cards are true variable gain amplifiers, offering an optimal equalization of the transmitted optical channels over a wide gain range. They support 96 channels at 50-GHz channel spacing in the C-band (that is, 1528.77 to 1566.72-nm wavelength range). The OPT-EDFA-17 and OPT-EDFA-24 cards deliver 20-dBm output powers and the OPT-EDFA-35 card delivers +23-dBm output power. These cards do not contain mid-stage access loss for a Dispersion Compensation Unit (DCU). The cards provide a noise-figure optimized version of the EDFA amplifiers to cope with new modulation formats like PM-DQPSK, which do not need dispersion compensation. To control gain tilt, a VOA is used. The amplifier module also includes the OSC add (TX direction) and drop (RX direction) optical filters.

The OPT-EDFA-17, and OPT-EDFA-24 cards share the same hardware platform and firmware architecture, but they differ in their operative optical gain range, which is 17 and 24 dB respectively.

The OPT-EDFA-35 card includes two identical amplification sections to serve two fiber directions simultaneously. Each section has a switchable gain range that allows its usage over a wide gain range. The OPT-EDFA-35 card is bidirectional. The card acts on both pairs of fibers entering and exiting from the node.

The OPT-EDFA-35 card has two possible gain ranges: gain range 1 from 12–24, gain range 2 from 20–35. The card also has extended gain range up to 40 dB without tilt control.

The OPT-EDFA-35 card is managed in a similar way as the OPT-EDFA-17 and OPT-EDFA-24 cards. For each EDFA unit inside the OPT-EDFA-35 card, the following settings are allowed:

  • Configuration of PRE or BST role

  • Configuration of Constant Gain working mode

  • Configuration of Gain Range

The main functionalities of the OPT-EDFA-17, OPT-EDFA-24, and OPT-EDFA-35 cards are:

  • (OPT-EDFA-17 and OPT-EDFA-24) Amplification of the input signal at the COM-RX port toward the LINE-TX port through a true-variable gain EDFA block.

    (OPT-EDFA-35) Two EDFA amplifier units embedded into the card, amplification of the input signal at the LINE-1-RX port toward the LINE-2-TX port through a true-variable gain EDFA-2 block, and amplification of the input signal at the LINE-2-RX port toward the LINE-1-TX port through a true-variable gain EDFA-1 block.

  • Multiplexing the OSC to the LINE-TX port

  • Demultiplexing the OSC from the LINE-RX port

  • Monitoring of the LINE input or output signal with 1% TAP splitters

The features of the OPT-EDFA-17, OPT-EDFA-24, and OPT-EDFA-35 cards are:

  • Embedded Gain Flattening Filter

  • Constant pump current mode (test mode)

  • Constant output power mode

  • Constant gain mode

  • Nondistorting low-frequency transfer function

  • ASE compensation in Constant Gain and Constant Output Power modes

  • Fast transient suppression

  • Programmable tilt

  • Full monitoring and alarm handling capability

  • Gain range with gain tilt control of 5–17 dB (for OPT-EDFA-17 card) , 12 to 24 dB and 20 to 35 dB (for OPT-EDFA-35 card), and 12–24 dB (for OPT-EDFA-24 card).

  • Extended gain range (with uncontrolled tilt) of 17–20 dB (for OPT-EDFA-17 card) , (for OPT-EDFA-35 card) of upto 27dB (for Gain Range1) and 40dB (for Gain Range2), and 24–27 dB (for OPT-EDFA-24 card).

  • Optical Safety Remote Interlock (OSRI)

  • Automatic Laser Shutdown (ALS)

You can install the OPT-EDFA-17, OPT-EDFA-24, and OPT-EDFA-35 cards in the following slots:

  • Slots 2–7 in NCS 2006

  • Slots 2–16 in NCS 2015

For more information about the OPT-EDFA-17, OPT-EDFA-24, and OPT-EDFA-35 cards, see the data sheet.

Power Monitoring of OPT-EDFA-17, OPT-EDFA-24, and OPT-EDFA-35 Cards

Physical photodiodes PD1 through PD6 monitor the power for the OPT-EDFA-17 and OPT-EDFA-24 cards.

Table 2. Port Calibration of OPT-EDFA-17 and OPT-EDFA-24 Cards

Photodiode

Calibrated to Port

PD1

COM-RX

PD2

LINE-TX

PD3

LINE-TX

PD4

OSC-RX

PD5

LINE-RX

PD6

LINE-RX

Physical photodiodes PD1 through PD8 monitor the power for the OPT-EDFA-35 card.

Table 3. Port Calibration of OPT-EDFA-35 Card

Photodiode

Calibrated to Port

PD1

LINE-2-RX

PD2

LINE-1-TX

PD3

LINE-1-RX

PD4

LINE-2-TX

PD5

OSC-2-RX

PD6

OSC-2-TX

PD7

OSC-1-TX

PD8

OSC-1-RX

Installing the Amplifier Card

Use this task to install the amplifier cards on the chassis.

Procedure

Step 1

Remove a DWDM card from its packaging, then remove the protective caps from the backplane connectors. (Safety caps are typically yellow.)

Step 2

Align the amplifier card so the markings on the card and the chassis are on the same side.

Step 3

Open the latches or ejectors of the first card that you will install.

Step 4

Use the latches or ejectors to firmly slide the card horizontally along the guide rails until the card plugs into the receptacle at the back of the slot. (slot 2 to 7 in the NCS 2006 shelf or slot 2 to 16 in the NCS 2015 shelf.)

Note

 

The card slides vertically in NCS 2015 shelf.

The card slides horizontally in NCS 2006.

Step 5

Verify that the card is inserted correctly, and close the latches or ejectors on the card.

RAMAN-CTP and RAMAN-COP Cards

In this chapter, "RAMAN-CTP" refers to the 15454-M-RAMAN-CTP card and "RAMAN-COP" refers to the 15454-M-RAMAN-COP card.

The single-slot RAMAN-CTP and RAMAN-COP cards support counter and co-propagating Raman amplification on long unregenerated spans.

The cards manage up to 96 ITU-T 50 GHz spaced channels over the C-band of the optical spectrum (wavelengths from 1528.77 to 1566.72 nm). The counter-propagating RAMAN-CTP card is the primary unit. The co-propagating RAMAN-COP card is the secondary unit and can be used only when the counter-propagating unit is present. The OSC pluggable used with the cards is ONS-SC-OSC-18.0=.

The RAMAN-CTP card can be calibrated either manually or automatically from the Maintenance tab in the SVO web interface. When the RAMAN-COP card is used, the RAMAN-CTP card can be calibrated only using the manual option.

The features of the RAMAN-CTP and RAMAN-COP cards include:

  • Raman section: 1000-mW total pump power for four pumps and two wavelengths.

  • Embedded distributed feedback (DFB) laser at 1568.77 nm to be used for optical safety and link continuity (in RAMAN-CTP card only).

  • Photodiodes to enable monitoring of Raman pump power.

  • Photodiodes to enable monitoring of the DFB laser and signal power (in RAMAN-CTP card only).

  • Automatic laser shutdown (ALS) for optical laser safety.

  • Hardware output signals for loss of signal (LOS) monitoring at input photodiodes.

  • Raman pump back reflection detector to check for excessive back reflection.

When the node has either RAMAN-CTP or RAMAN-COP card, you can install the card in the following slots.

  • Slots 2–7 in NCS 2006

  • Slots 2–16 in NCS 2015

When the node has both RAMAN-CTP or RAMAN-COP cards, you can install the cards in the following slots.

  • If the RAMAN-CTP card is installed in an even slot, the RAMAN-COP card must be installed in the next odd slot.

  • If the RAMAN-COP is installed in an even slot, the RAMAN-CTP card must be installed in the next odd slot.

RAMAN-CTP and RAMAN-COP Cards Power Monitoring

Physical photodiodes P1 through P10 monitor the power for the RAMAN-CTP card.

Table 4. RAMAN-CTP Port Calibration

Photodiode

Type Name

Calibrated to Port

P1

DFB in-fiber Output Power

LINE-TX

P2

DWDM RX Input Power

LINE-RX

P3

Pump 1 in-fiber Output Power

LINE-RX

P4

Pump 2 in-fiber Output Power

LINE-RX

P5

Total Pump in-fiber Output Power

LINE-RX

P6

Back-Reflected Pump Power

LINE-RX

P7

DWDM TX Input Power

COM-RX

P8

Total Co-Pump in-fiber Output Power

LINE-TX

P9

DFB Input Power

LINE-RX

P10

ASE Input Power

LINE-RX

Physical photodiodes P3 through P6 monitor the power for the RAMAN-COP card.

Table 5. RAMAN-CTP Port Calibration

Photodiode

Type Name

Calibrated to Port

P3

Pump 1 in-fiber Output Power

RAMAN-TX

P4

Pump 2 in-fiber Output Power

RAMAN-TX

P5

Total Pump in-fiber Output Power

RAMAN-TX

P6

Back-Reflected Pump Power

RAMAN-TX

For more information about the RAMAN-CTP and RAMAN-COP cards, see the data sheet.

EDRA-1-xx and EDRA-2-xx Cards

In this chapter, "EDRA-1-xx" refers to the NCS2K-EDRA1-26C and NCS2K-EDRA1-35C cards.

"EDRA-2-xx" refers to the NCS2K-EDRA2-26C and NCS2K-EDRA2-35C cards.

The double-slot EDRA-1-xx and EDRA-2-xx cards combine standard erbium-doped fiber amplifiers and a Raman amplifier to enable amplification on long unregenerated spans.

The cards manage up to 96 ITU-T 50 GHz spaced channels over the C-band of the optical spectrum (wavelengths from 1528.77 to 1566.72 nm). You can install the EDRA-1-xx and EDRA-2-xx cards in the lowest slots to allow high output power. The power output is limited to 21 dBm when the cards are inserted in any other slot. The OSC pluggable used with the cards is ONS-SC-OSC-18.0=.

The cards can be used in point-to-point, ring, multi-ring, or mesh topologies and are supported on flexible nodes in line amplifier node configurations.

Apart from these node configurations having only EDRA cards as amplifiers, the system also supports hybrid configurations with OPT-EDFA-17, OPT-EDFA-24, RAMAN-CTP, and RAMAN-COP cards. These cards support span loss and gain values that are not supported in EDRA cards.

  • For gain less than 15 dB, OPT-EDFA-17 or OPT-EDFA-24 must be used.

  • For gain greater than 35 dB, RAMAN-CTP, RAMAN-COP, OPT-EDFA-17 or OPT-EDFA-24 must be used.

You can install the EDRA-1-xx and EDRA-2-xx cards in the following slots.

  • Slots 2–6 in NCS 2006

  • Slots 2–15 in NCS 2015

EDRA-1-xx and EDRA-2-xx Cards Power Monitoring

The following table lists the physical photodiodes that monitor the power for the EDRA-1-xx and EDRA-2-xx cards.

Table 6. EDRA-1-xx and EDRA-2-xx Port Calibration

Photodiode

CTC Type Name

Calibrated to Port

PD1

Remnant Pump Input power

LINE-TX

PD2

OSC Add Input Power

OSC-RX

PD3

EDFA1 Input Power

LINE-RX

PD4

EDFA1 Output Power

COM-TX

PD5

EDFA2 Input Power

COM-RX

PD6

EDFA2/LINE-TX Output Power

LINE-TX

PD7

OSC Drop Output Power

LINE-TX

PD11

Pump λ1 in-fibre Output Power

LINE-RX

PD12

Pump λ2 in-fibre Output Power

LINE-RX

PD13

Pump λ3 in-fibre Output Power

LINE-RX

PD14

Pump λ4 in-fibre Output Power

LINE-RX

PD15

Total Pump in-fibre Output Power

LINE-RX

PD16

Back-Reflected Pump Power

LINE-RX

PD17

OTDR2-L Input Power

OTDR2-L-RX

Provision Amplifier Parameters

Use this task to provision the optical amplifier parameters for OPT-AMP-C, OPT-AMP-17-C, OPT-PRE, OPT-BST, OPT-BST-E, OPT-EDFA-17, OPT-EDFA-24, OPT-EDFA-35, EDRA1-xx, and EDRA2-xx cards.

Before you begin

Procedure

Step 1

Click the Provisioning > Amplifier tabs.

Step 2

Modify any of the settings described in the following table.

Table 7. Amplifier Parameters for Amplifier Cards

Parameter

Description

Options

Port

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

—

Total Output Power (dBm)

(Display only) Shows the current power level for each port.

—

Output Power Setpoint (dBm)

Shows the output power setpoint.

—

Working Mode

Shows the working mode.

  • Channel Power

  • Total Power

  • Optimized

  • Fixed Gain

  • Start and Hold

Role

Role of the amplifier.

  • Preamplifier

  • Booster

Actual Gain (dB)

Actual gain setpoint.

—

Target Gain (dB)

Target gain setpoint.

—

Tilt Setpoint (dB)

Target output tilt requested by the user.

—

PSD Setpoint (dBm/GHz)

Power Spectral Density. Target output power requested by the user for each circuit.

—

PSD Optimized (dBm/GHz)

Optimized PSD

—

Gain Setpoint (dB)

Target amplifier gain requested by the user.

—

Gain Range

Sets the gain range of the amplifier.

  • Gain Range 1

  • Gain Range 2

  • No Gain Range

Power Degrade Threshold (High) (dBm/GHz)

Shows the current value of the optical power degrade high threshold.

—

Power Degrade Threshold (Low) (dBm/GHz)

Shows the current value of the optical power degrade low threshold.

—

Status

Shows the current status of the amplifier.

—

Gain Degrade High (dB)

(Display only) Shows the current value of the gain degrade high threshold configured in the card. This threshold applies only when the amplifier is active and in constant gain mode.

Gain Degrade High refers to the Gain value of the port and is automatically calculated by the control card when the amplifier is turned up.

—

Gain Degrade Low (dB)

(Display only) Shows the current value of the gain degrade low threshold configured in the card. This threshold applies only when the amplifier is active and in constant gain mode.

Gain Degrade Low refers to the Gain value of the port and is automatically calculated by the control card when the amplifier is turned up.

—

Step 3

Click Apply to save the changes.

Provision Raman Amplifier Parameters

Use this task to provision the optical Raman amplifier parameters for the RAMAN-CTP, RAMAN-COP, EDRA1-xx, and EDRA2-xx cards.

Before you begin

Procedure

Step 1

Click the Provisioning > Raman Amplifier tabs.

Step 2

Modify any of the settings described in the following table.

Table 8. Raman Amplifier Parameters for Amplifier Cards

Parameter

Description

Options

Port

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

—

Name

Gain Setpoint (dB)

Target amplifier gain requested by the user.

—

Tilt Setpoint (dB)

Target output tilt requested by the user.

—

Actual Gain (dB)

(Display only) Displays the actual amplifier gain.

—

Actual Tilt (dB)

(Display only) Displays the actual amplifier tilt

—

Pumping Scheme

(Display only) Displays the pumping scheme that the card uses.

  • Counter-Propagating for the RAMAN-CTP, EDRA-1-xx, and EDRA-2-xx cards.

  • Co-Propagating for the RAMAN-COP card.

Calibration Type

Calibration type that the card uses.

The RAMAN-COP card supports only manual calibration. The RAMAN-CTP card supports both automatic and manual calibration. If a node has both RAMAN-CTP and RAMAN-COP cards, the RAMAN-CTP card supports only manual calibration.

  • Automatic

  • Manual

  • No-Calibration

Unsaturated Gain Setpoint (dBm)

Unsaturated target amplifier gain. This field is editable only for the RAMAN-COP card.

0–50

Step 3

Click Apply to save the changes.

Step 4

Expand the RAMAN port to view the pump power details.

Table 9. RAMAN Pump Power Parameters

Parameter

Description

Pump ID

(Display only) Identifier of the Raman Pump (2 pumps with RAMAN-CTP and 4 pumps with EDRA).

Pump Power Setpoint (mW)

(Only for RAMAN-CTP and RAMAN-COP cards) Provisioned value of pump power setpoint. This value is effective only for manual calibration of RAMAN-CTP and RAMAN-COP cards and if the calibration is not performed. The value of this parameter must also be provided for automatic calibration of the RAMAN-CTP card even if the value is not effective.

Pump Power Target (mW)

(Display only) Target power set by the internal control algorithm. The result of calibration can be both automatic and manual.

Pump Power (mW)

(Display only) Actual power value of the individual pump.

Step 5

Click Apply to save the changes.

Provision Interface Parameters

Use this task to change the optical interface parameters of OPT-AMP-C, OPT-AMP-17-C, OPT-PRE, OPT-BST, OPT-BST-E, OPT-EDFA-17, OPT-EDFA-24, OPT-EDFA-35, RAMAN-CTP, EDRA1-xx, and EDRA2-xx 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 10. 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

Sets 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)

(Display only) Displays the optical power for each port.

—

OSC Power (dBm)

(Display only) Displays the service-channel power level for each port.

—

Optical PSD Setpoint (dBm/GHz)

Target output Power Spectral Density requested by the user.

-50 to 10

Attenuator Value (dB)

Sets the attenuator value.

—

Optical Power Threshold Low (dBm)

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

—

OSC Power Threshold Low (dBm)

(Display only) Displays the OSC power level for each port.

—

Current Power Degrade High (dBm)

(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)

(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.

—

Current Power Failure Low (dBm)

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

—

Step 3

Click Apply to save the changes.

Manage Raman Interface Parameters

Use this task to manage the Raman interface parameters of RAMAN-CTP, RAMAN-COP, EDRA1-xx, and EDRA2-xx cards.

Before you begin

Procedure

Step 1

Click the Provisioning > Raman Interface tabs.

Step 2

View the settings described in the following table. Only the Admin State parameter can be modified.

Table 11. 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

Sets 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 (mW)

(Display only) Displays the optical power for each port.

—

Current Optical Power Setpoint (mW)

(Display only) Shows the current value of the optical power setpoint that must be reached.

—

Current Power Degrade High (mW)

(Display only) Shows that the current value of the optical power degrade high threshold.

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 (mW)

(Display only) Shows that the current value of the optical power degrade high 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.

—

Current Power Failure Low (mW)

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

—

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 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 12. 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

  • oscPowerPMTh

  • 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 for cards.

Before you begin

Procedure

Step 1

Click the Maintenance > Optical Safety tabs.

Step 2

Modify required settings described in the following table:

Table 13. 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.

Clear the Raman Laser Shutdown Condition

The Raman Laser Shutdown (RLS) condition is raised during the Raman link turn-up phase on the RAMAN-TX port of the RAMAN-CTP and RAMAN-COP cards when excessive back reflection is detected. When the RLS condition is raised, the Raman pump laser inside the card is automatically shut down and the optical link turn-up procedure is terminated. The RLS condition must be cleared before proceeding with further provisioning.

Use this task to clear the RLS condition for RAMAN-CTP and RAMAN-COP cards.

Before you begin

Procedure

Step 1

Click the Maintenance > Safety tabs.

Step 2

Click Manual Safety Restart to clear the RLS condition.

A confirmation dialog box appears and is service-affecting.

Step 3

Click Yes to proceed.

View Insertion Loss Parameters

Use this task to view the insertion loss parameters of 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.

Perform Manual Calibration

Use this task to perform manual calibration for the RAMAN-CTP and RAMAN-COP cards.

The RAMAN-COP card supports only manual calibration. The RAMAN-CTP card supports both automatic and manual calibration. However, if a node has both RAMAN-CTP and RAMAN-COP cards, the RAMAN-CTP card supports only manual calibration.

For complete information on the specific setup that is required for manual calibration, see DLP-G690 Configure the Raman Pump Using Manual Day-0 Installation.

Before you begin

Procedure

Step 1

Click the Maintenance > Manual Calibration tabs.

All the values in this pane are read-only and reflects the status of last manual calibration.

Table 14. Parameters of Manual Calibration

Parameter

Description

Port

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

Time Stamp

Displays the date and time of calibration.

Pump 1 Low Power (dBm)

Displays the measured incoming power with only pump 1 on at low power level.

Pump 2 Low Power (dBm)

Displays the measured incoming power with only pump 2 on at low power level.

Pump 1 High Power (dBm)

Displays the measured incoming power with only pump 1 on at high power level.

Pump 2 High Power (dBm)

Displays the measured incoming power with only pump 2 on at high power level.

Target Gain (dB)

Displays the target spectrum gain.

Obtained Gain (dB)

Displays the obtained spectrum gain.

Target Tilt (dB)

Displays the target spectrum tilt.

Obtained Tilt (dB)

Displays the obtained spectrum tilt.

Result

Displays the result of manual Raman calibration. The possible values of Result are as follows:

  • No Target Gain—Raman target gain is not configured.

  • Not Enough Gain—Raman gain obtained from calibration is too low.

  • Lower Than Target Gain—Raman gain obtained from calibration is below the target but is acceptable.

  • Target Gain Reached—Raman target gain is reached.

  • User Override—User has overridden the calibration result and uses the configured setpoint of Raman pumps manually.

Status

Displays the status of manual Raman calibration. The possible values of Status are as follows:

  • Not Calibrated—Raman calibration was not run.

  • In Progress—Raman calibration is being run by the user.

  • Completed—Raman calibration is completed.

  • Using pumps-power-setpoint—Raman pumps are regulated according to the user configuration.

Step 2

Click Run Calibration.

A confirmation message appears.

Step 3

Click Yes.

Step 4

Click Run Pump Test for each individual pump.

The pump test cannot be run if active circuits are present in the node. When you run the pump test, the Status column in the Manual Calibration tab changes to "In Progress."

Step 5

Enter the optimum power value of individual pump in the Power Value (dBm) field.

Step 6

Click Calibrate Pump to start the manual calibration.

The calibration progress appears in the Calibration Result area. The calibration result can be a success, failure, or lower than target gain.

  • If the calibration result is success, the obtained target gain value is applied to the node.

  • If the calibration result is a failure, the old target gain value is restored.

  • If the calibration result is lower than the target gain, it implies that the obtained gain is + or –2 dB from the target gain. The gain is degraded. However, the calibration is still accepted and the obtained target gain value is applied to the node.

Perform Automatic Calibration

Use this task to perform automatic calibration for the RAMAN-CTP, EDRA1-xx, and EDRA2-xx cards.

The automatic calibration automatically runs on the cards upon fiber restoration, power cycle, and so on.

Before you begin

Procedure

Step 1

Click the Maintenance > Automatic Calibration tabs.

All the values in this pane are read-only and reflects the status of last automatic calibration.

Table 15. Parameters of Automatic Calibration

Parameter

Description

Port

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

Timestamp

Displays the date and time of calibration.

Calibration Gain (dB)

Displays the Raman gain that is obtained with calibration of total pump power.

Calibration Total Pumps (mW)

Displays the reference power level used throughout calibration. The default value is 700 mW. If Raman gain is too low, the power value is automatically increased to 850 mW.

Target Gain (dB)

Displays the target spectrum gain.

Obtained Gain (dB)

Displays the obtained spectrum gain.

Target Tilt (dB)

Displays the target spectrum tilt.

Obtained Tilt (dB)

Displays the obtained spectrum tilt.

Raman Noise Floor (dBm)

Displays the optical power measured at the LINE-RX port when Raman pumps are at calibration total pumps power level and incoming signal is not received from the neighboring node. It is noise generated by the Raman amplification process.

Incoming Power Pumps Off (dBm)

Displays the power level of probe signal with Raman pumps off.

Incoming Power Pumps On (dBm)

Displays the power level of probe signal with Raman pumps on (combined with Raman noise floor).

Power Source

Displays the type of power source that is used for calibration. The possible values of Power Source are as follows:

  • Broadband Optical Power—Raman automatic calibration used broadband optical power, typically, Amplified Spontaneous Emission (ASE) generated by an optical amplifier.

  • Active Optical Services—Raman automatic calibration used active services.

  • Active Optical Services (Unbalanced)—Raman automatic calibration used active services;however, they do not properly cover the whole C-Band spectrum.

Result

Displays the result of automatic Raman calibration. The possible values of Result are as follows:

  • No Target Gain—Raman target gain is not configured.

  • Not Enough Gain—Raman gain obtained from calibration is too low.

  • Lower Than Target Gain (Need Accept)—Raman gain obtained from calibration is below the target but might be acceptable. The user must accept the Raman gain.

  • Lower Than Target Gain ( Accepted)—Raman gain obtained from calibration is below the target and the user has accepted the Raman gain.

  • Target Gain Reached—Raman target gain is reached.

  • User Override—User has overridden the calibration result and uses configured setpoint of Raman pumps manually.

Status

Displays the status of automatic Raman calibration. The possible values of Status are as follows:

  • Not Scheduled—Raman automatic calibration is not scheduled.

  • Invalid—Raman automatic calibration reports invalid data.

  • Pending—Raman automatic calibration is scheduled and pending.

  • Running On User Request—Raman automatic calibration is running on user request.

  • Running—Raman automatic calibration is automatically running.

  • Failed—Raman automatic calibration has failed.

  • Aborted—Raman automatic calibration has been terminated and will be re-scheduled soon.

  • Completed—Raman automatic calibration is completed.

Step 2

Click Run Calibration to start the automatic calibration.

A confirmation message appears.

Step 3

Click Yes.

When you start the automatic calibration, the Status column in the Automatic Calibration tab changes to "Running on User Request."

The calibration result can be success, failure, or lower than target gain.

  • If the calibration result is success, the obtained target gain value is applied to the node.

  • If the calibration result is failure, the old target gain value is restored.

  • If the calibration result is lower than target gain, it implies that the obtained gain is + or –2 dB from the target gain. The gain is degraded. The RAMAN-GAIN-NOT-REACHED alarm is raised on the node to inform the user of a lower target gain. The user can accept this lower target gain by clicking the Accept Degraded Gain button. This clears the RAMAN-GAIN-NOT-REACHED alarm and the lower target gain value is applied to the node.

Step 4

(Optional) (Not applicable for RMN-CTP-CL card) Click Get All Calibration Reports to display the last 10 calibration reports with the timestamp and result in a table.

Step 5

(Optional) Click Get Last Calibration Error to identify the reason for the last calibration failure.

The automatic calibration typically completes without user intervention. However, the automatic calibration fails upon certain conditions such as loss of communication between two nodes and OSC failure. You can identify the reason for the last calibration failure by clicking the Get Last Calibration Error button. The reason is displayed only when the Status column in the Automatic Calibration tab is Failure.

Collect Failure Logs

Use this task to collect the failure log information for the 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.