Cisco ONS 15454 DWDM Reference Manual, Releases 9.2.1 and 9.2.2
Chapter 4, Optical Amplifier Cards
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Optical Amplifier Cards

Table Of Contents

Optical Amplifier Cards

4.1  Card Overview

4.1.1  Applications

4.1.2  Card Summary

4.1.3  Card Compatibility

4.1.4  Optical Power Alarms and Thresholds

4.2  Class 1M Laser Safety Labels

4.2.1  Class 1M Laser Product Statement

4.2.2  Hazard Level 1M Label

4.2.3  Laser Source Connector Label

4.2.4  FDA Statement Label

4.2.5  Shock Hazard Label

4.3  OPT-PRE Amplifier Card

4.3.1  OPT-PRE Faceplate Ports

4.3.2  OPT-PRE Block Diagrams

4.3.3  OPT-PRE Power Monitoring

4.3.4  OPT-PRE Amplifier Card-Level Indicators

4.3.5  OPT-PRE Amplifier Port-Level Indicators

4.4  OPT-BST Amplifier Card

4.4.1  OPT-BST Faceplate Ports

4.4.2  OPT-BST Block Diagrams

4.4.3  OPT-BST Power Monitoring

4.4.4  OPT-BST Card-Level Indicators

4.4.5  OPT-BST Port-Level Indicators

4.5  OPT-BST-E Amplifier Card

4.5.1  OPT-BST-E Faceplate Ports

4.5.2  OPT-BST-E Block Diagrams

4.5.3  OPT-BST-E Power Monitoring

4.5.4  OPT-BST-E Card-Level Indicators

4.5.5  OPT-BST-E Port-Level Indicators

4.6  OPT-BST-L Amplifier Card

4.6.1  OPT-BST-L Faceplate Ports

4.6.2  OPT-BST-L Block Diagrams

4.6.3  OPT-BST-L Power Monitoring

4.6.4  OPT-BST-L Card-Level Indicators

4.6.5  OPT-BST-L Port-Level Indicators

4.7  OPT-AMP-L Card

4.7.1  OPT-AMP-L Faceplate Ports

4.7.2  OPT-AMP-L Block Diagrams

4.7.3  OPT-AMP-L Power Monitoring

4.7.4  OPT-AMP-L Card-Level Indicators

4.7.5  OPT-AMP-L Port-Level Indicators

4.8  OPT-AMP-17-C Card

4.8.1  OPT-AMP-17-C Faceplate Ports

4.8.2  OPT-AMP-17-C Block Diagrams

4.8.3  OPT-AMP-17-C Automatic Power Control

4.8.4  OPT-AMP-17-C Power Monitoring

4.8.5  OPT-AMP-17-C Card-Level Indicators

4.8.6  OPT-AMP-17-C Port-Level Indicators

4.9  OPT-AMP-C Card

4.9.1  OPT-AMP-C Card Faceplate Ports

4.9.2  OPT-AMP-C Card Block Diagrams

4.9.3  OPT-AMP-C Card Power Monitoring

4.9.4  OPT-AMP-C Card-Level Indicators

4.9.5  OPT-AMP-C Card Port-Level Indicators

4.10  OPT-RAMP-C and OPT-RAMP-CE Cards

4.10.1  Card Faceplate Ports

4.10.2  Card Block Diagram

4.10.3  OPT-RAMP-C and OPT-RAMP-CE Card Power Monitoring

4.10.4  OPT-RAMP-C and OPT-RAMP-CE Card Level Indicators

4.10.5  OPT-RAMP-C and OPT-RAMP-CE Card Port-Level Indicators


Optical Amplifier Cards


This chapter describes the optical amplifier cards used in Cisco ONS 15454 dense wavelength division multiplexing (DWDM) networks. For installation and card turn-up procedures, refer to the Cisco ONS 15454 DWDM Procedure Guide. For card safety and compliance information, refer to the Cisco Optical Transport Products Safety and Compliance Information document.


Note The cards described in this chapter are supported on the Cisco ONS 15454, Cisco ONS 15454 M6, Cisco ONS 15454 M2 platforms, unless noted otherwise.



Note Unless otherwise specified, "ONS 15454" refers to both ANSI and ETSI shelf assemblies.


Chapter topics include:

Card Overview

Class 1M Laser Safety Labels

OPT-PRE Amplifier Card

OPT-BST Amplifier Card

OPT-BST-E Amplifier Card

OPT-BST-L Amplifier Card

OPT-AMP-L Card

OPT-AMP-17-C Card

OPT-AMP-C Card

OPT-RAMP-C and OPT-RAMP-CE Cards

4.1  Card Overview

This section provides summary and compatibility information for the optical amplifier cards.


Note Each card is marked with a symbol that corresponds to a slot (or slots) on the ONS 15454 shelf assembly. Cards should be installed in slots that have the same symbols. See the Cisco ONS 15454 Hardware Installation Guide for a list of slots and symbols.


Optical amplifiers are used in amplified nodes (such as hub nodes), amplified OADM nodes, and line amplifier nodes. The nine types of ONS 15454 DWDM amplifiers are:

Optical Preamplifier (OPT-PRE)

Optical Booster amplifier (OPT-BST)

Optical Booster Enhanced amplifier (OPT-BST-E)

Optical Booster L-band amplifier (OPT-BST-L)

Optical L-band preamplifier (OPT-AMP-L)

Optical C-band amplifier (OPT-AMP-17-C).

Optical C-band high-gain high-power amplifier (OPT-AMP-C)

Optical C-band Raman amplifier (OPT-RAMP-C)

Optical C-band enhanced Raman amplifier (OPT-RAMP-CE)

Optical amplifier card architecture includes an optical plug-in module with a controller that manages optical power, laser current, and temperature control loops. An amplifier also manages communication with the TCC2/TCC2P/TCC3/TNC/TSC card and operation, administration, maintenance, and provisioning (OAM&P) functions such as provisioning, controls, and alarms.

4.1.1  Applications

Using CTC (CTC > Card > Provisioning), the following amplifiers can be configured as booster or preamplifiers:

OPT-AMP-C

OPT-AMP-17C

OPT-AMP-L

OPT-BST-E

OPT-BST

The amplifier functions as a booster amplifier by default. The amplifier role is automatically configured when the CTP NE update configuration file is loaded in CTC. The amplifier role can also be manually modified.


Note The OPT-BST and OPT-BST-E amplifiers are supported as preamplifiers in sites that are equipped with the OPT-RAMP-C card. In any other configuration, the OPT-BST and OPT-BST-E cards must be configured as a booster amplifier.


For more information about the supported configurations and network topologies, see Chapter 11 "Node Reference" and Chapter 12 "Network Reference."

4.1.2  Card Summary

Table 4-1 lists and summarizes the functions of each optical amplifier card.

Table 4-1 Optical Amplifier Cards for the ONS 15454 

Card
Port Description
For Additional Information
OPT-PRE

The OPT-PRE amplifier has five optical ports (three sets) located on the faceplate. It operates in Slots 1 to 6 and 12  to 17.

See the "OPT-PRE Amplifier Card" section.

OPT-BST

The OPT-BST amplifier has four sets of optical ports located on the faceplate. It operates in Slots 1 to 6 and 12  to 17.

See the "OPT-BST Amplifier Card" section.

OPT-BST-E

The OPT-BST-E amplifier has four sets of optical ports located on the faceplate. It operates in Slots 1 to 6 and 12  to 17.

See the "OPT-BST-E Amplifier Card" section.

OPT-BST-L

The OPT-BST-L L-band amplifier has four sets of optical ports located on the faceplate. It operates in Slots 1 to 6 and 12  to 17.

See the "OPT-BST-L Amplifier Card" section.

OPT-AMP-L

The OPT-AMP-L L-band preamplifier has five sets of optical ports located on the faceplate. It is a two-slot card that operates in Slots 1 to 6 and 12  to 17.

See the "OPT-AMP-L Card" section.

OPT-AMP-17-C

The OPT-AMP-17-C C-band low-gain preamplifier/booster amplifier has four sets of optical ports located on the faceplate. It operates in Slots 1 to 6 and 12  to 17.

See the "OPT-AMP-17-C Card" section.

OPT-AMP-C

The OPT-AMP-C C-band high-gain, high-power preamplifier/booster amplifier has five sets of optical ports located on the faceplate. It operates as a preamplifier when equipped and provisioned in Slots 2 to 6 and 11  to 16 or as a booster amplifier when equipped and provisioned in Slot 1 and 17.

See the "OPT-AMP-C Card" section.

OPT-RAMP-C

The OPT-RAMP-C C-band amplifier has five sets of optical ports located on the faceplate and operates in Slots 1 to 5 and 12 to 16.

See the "OPT-RAMP-C and OPT-RAMP-CE Cards" section.

OPT-RAMP-CE

The OPT-RAMP-CE C-band amplifier has five sets of optical ports located on the faceplate and operates in Slots 1 to 5 and 12 to 16.

See the "OPT-RAMP-C and OPT-RAMP-CE Cards" section.


4.1.3  Card Compatibility

Table 4-2 lists the Cisco Transport Controller (CTC) software compatibility for each optical amplifier card.

Table 4-2 Software Release Compatibility for Optical Amplifier Cards 

Card Type
R4.5
R4.6
R4.7
R5.0
R6.0
R7.0
R7.2
R8.0
R8.5
R9.0
R9.1
R 9.2
R 9.2.1 and R 9.2.2

OPT-PRE

15454-DWDM

15454-DWDM

15454-DWDM

15454-DWDM

15454-DWDM

15454-DWDM

15454-DWDM

15454-DWDM

15454-DWDM

15454-DWDM

15454-DWDM

ONS 15454, 15454-M2, 15454-M6

ONS 15454, 15454-M2, 15454-M6

OPT-BST

15454-DWDM

15454-DWDM

15454-DWDM

15454-DWDM

15454-DWDM

15454-DWDM

15454-DWDM

15454-DWDM

15454-DWDM

15454-DWDM

15454-DWDM

ONS 15454, 15454-M2, 15454-M6

ONS 15454, 15454-M2, 15454-M6

OPT-BST-E

No

No

15454-DWDM

15454-DWDM

15454-DWDM

15454-DWDM

15454-DWDM

15454-DWDM

15454-DWDM

15454-DWDM

15454-DWDM

ONS 15454, 15454-M2, 15454-M6

ONS 15454, 15454-M2, 15454-M6

OPT-BST-L

No

No

No

No

No

15454-DWDM

15454-DWDM

15454-DWDM

15454-DWDM

15454-DWDM

15454-DWDM

15454-DWDM

15454-DWDM

OPT-AMP-L

No

No

No

No

No

15454-DWDM

15454-DWDM

15454-DWDM

15454-DWDM

15454-DWDM

15454-DWDM

15454-DWDM

15454-DWDM

OPT-AMP-17-C

No

No

No

No

No

No

No

15454-DWDM

15454-DWDM

15454-DWDM

15454-DWDM

ONS 15454, 15454-M2, 15454-M6

ONS 15454, 15454-M2, 15454-M6

OPT-AMP-C

No

No

No

No

No

No

No

No

15454-DWDM

15454-DWDM

15454-DWDM

ONS 15454, 15454-M2, 15454-M6

ONS 15454, 15454-M2, 15454-M6

OPT-RAMP-C

No

No

No

No

No

No

No

No

No

15454-DWDM

15454-DWDM

ONS 15454, 15454-M6

ONS 15454, 15454-M6

OPT-RAMP-CE

No

No

No

No

No

No

No

No

No

No

15454-DWDM

ONS 15454, 15454-M6

ONS 15454, 15454-M6


4.1.4  Optical Power Alarms and Thresholds

Table 4-3 lists the alarms and related thresholds for the OPT-BST, OPT-BST-E, OPT-BST-L, OPT-AMP-L, OPT-AMP-17-C, and OPT-AMP-C cards.

Table 4-3 Alarms and Thresholds

Port
Alarms
Thresholds

LINE RX

LOS

None

LOS-P

LOS-P Fail Low

LOS-O

LOS-O Fail Low

LINE TX

OPWR-FAIL

OPWR Fail Low

OSC TX

None

None

OSC RX

None

None

COM TX

None

None

COM RX

LOS-P

LOS-P Fail Low


4.2  Class 1M Laser Safety Labels

This section explains the significance of the safety labels attached to the optical amplifier cards. The faceplates of the cards are clearly labeled with warnings about the laser radiation levels. You must understand all warning labels before working on these cards.

4.2.1  Class 1M Laser Product Statement

Figure 4-1 shows the Class 1M Laser Product statement. Class 1M lasers are products that produce either a highly divergent beam or a large diameter beam. Therefore, only a small part of the whole laser beam can enter the eye. However, these laser products can be harmful to the eye if the beam is viewed using magnifying optical instruments.

Figure 4-1 Class 1M Laser Product Statement

4.2.2  Hazard Level 1M Label

Figure 4-2 shows the Hazard Level 1M label. The Hazard Level label warns users against exposure to laser radiation calculated in accordance with IEC60825-1 Ed.1.2. This label is displayed on the faceplate of the cards.

Figure 4-2 Hazard Level Label

4.2.3  Laser Source Connector Label

Figure 4-3 shows the Laser Source Connector label. This label indicates that a laser source is present at the optical connector where the label appears.

Figure 4-3 Laser Source Connector Label

4.2.4  FDA Statement Label

Figure 4-4 and Figure 4-5 shows the FDA Statement labels. These labels represent compliance to FDA standards and a hazard-level classification in accordance with IEC60825-1 Am.2 or Ed.1.2.

Figure 4-4 FDA Statement Label

Figure 4-5 FDA Statement Label

4.2.5  Shock Hazard Label

Figure 4-6 shows the Shock Hazard label. This label alerts you to an electrical hazard within the card. The potential for shock exists when you remove adjacent cards during maintenance or touch exposed electrical circuity on the card.

Figure 4-6 Shock Hazard Label

4.3  OPT-PRE Amplifier Card


Note For hardware specifications, see the "OPT-PRE Amplifier Card Specifications" section.



Note For OPT-PRE card safety labels, see the "Class 1M Laser Safety Labels" section.


The OPT-PRE is a C-band, DWDM, two-stage erbium-doped fiber amplifier (EDFA) with midamplifier loss (MAL) that can be connected to a dispersion compensating unit (DCU). The OPT-PRE is equipped with a built-in variable optical attenuator (VOA) that controls the gain tilt and can also be used to pad the DCU to a reference value. You can install the OPT-PRE in Slots 1 to 6 and 12 to 17. The card is designed to support up to 80 channels at 50-GHz channel spacing. The OPT-PRE features include:

Fixed gain mode with programmable tilt

True variable gain

Fast transient suppression

Nondistorting low-frequency transfer function

Settable maximum output power

Fixed output power mode (mode used during provisioning)

MAL for fiber-based DCU

Amplified spontaneous emissions (ASE) compensation in fixed gain mode

Full monitoring and alarm handling with settable thresholds

Four signal photodiodes to monitor the input and output optical power of the two amplifier stages through CTC

An optical output port for external monitoring


Note The optical splitter has a ratio of 1:99, resulting in about 20 dB-lower power at the MON port than at the COM TX port.


4.3.1  OPT-PRE Faceplate Ports

The OPT-PRE amplifier has five optical ports located on the faceplate:

MON is the output monitor port

COM RX (receive) is the input signal port

COM TX (transmit) is the output signal port

DC RX is the MAL input signal port

DC TX is the MAL output signal port

Figure 4-7 shows the OPT-PRE amplifier card faceplate.

Figure 4-7 OPT-PRE Faceplate

4.3.2  OPT-PRE Block Diagrams

Figure 4-8 shows a simplified block diagram of the OPT-PRE card's features.

Figure 4-8 OPT-PRE Block Diagram

Figure 4-9 shows the a block diagram of how the OPT-PRE optical module functions.

Figure 4-9 OPT-PRE Optical Module Functional Block Diagram

4.3.3  OPT-PRE Power Monitoring

Physical photodiodes P1, P2, P3, and P4 monitor the power for the OPT-PRE card. Table 4-4 shows the returned power level values calibrated to each port.

Table 4-4 OPT-PRE Port Calibration 

Photodiode
CTC Type Name
Calibrated to Port

P1

Input Com

COM RX

P2

Output DC

DC TX

P3

Input DC

DC RX

P4

Output COM (Total Output)

COM TX

Output COM (Signal Output)


For information on the associated TL1 AIDs for the optical power monitoring points, refer the "CTC Port Numbers and TL1 Aids" section in Cisco ONS SONET TL1 Command Guide, Releases 9.2.1 and 9.2.2.

4.3.4  OPT-PRE Amplifier Card-Level Indicators

Table 4-5 shows the three card-level LED indicators on the OPT-PRE amplifier card.

Table 4-5 OPT-PRE Amplifier Card-Level Indicators  

Card-Level Indicators
Description

Red FAIL LED

The red FAIL LED indicates that the card's processor is not ready or that an internal hardware failure occurred. Replace the card if the red FAIL LED persists.

Green ACT LED

The green ACT LED indicates that the OPT-PRE is carrying traffic or is traffic-ready.

Amber SF LED

The amber SF LED indicates a signal failure or condition such as LOS on one or more of the card's ports. The amber SF LED also turns on when the transmit and receive fibers are incorrectly connected. When the fibers are properly connected, the light turns off.


4.3.5  OPT-PRE Amplifier Port-Level Indicators

You can determine the status of the card ports using the LCD screen on the ONS 15454 fan-tray assembly. Use the LCD to view the status of any port or card slot; the screen displays the number and severity of alarms for a given port or slot.

4.4  OPT-BST Amplifier Card


Note For hardware specifications, see the "OPT-BST Amplifier Card Specifications" section.



Note For OPT-BST card safety labels, see the "Class 1M Laser Safety Labels" section.


The OPT-BST is designed to ultimately support up to 80 channels at 50-GHz channel spacing. The OPT-BST is a C-band, DWDM EDFA with optical service channel (OSC) add-and-drop capability. When an OPT-BST installed in the an ONS 15454, an OSCM card is also needed to process the OSC. You can install the OPT-BST in Slots 1 to 6 and 12 to 17. The card's features include:

Fixed gain mode (with programmable tilt)

Gain range of 5 to 20 dB in constant gain mode and output power mode

True variable gain

Built-in VOA to control gain tilt

Fast transient suppression

Nondistorting low-frequency transfer function

Settable maximum output power

Fixed output power mode (mode used during provisioning)

ASE compensation in fixed gain mode

Full monitoring and alarm handling with settable thresholds

Optical Safety Remote Interlock (OSRI), a CTC software feature capable of shutting down optical output power or reducing the power to a safe level (automatic power reduction)

Automatic laser shutdown (ALS), a safety mechanism used in the event of a fiber cut. For details on ALS provisioning for the card, refer to the Cisco ONS 15454 DWDM Procedure Guide. For information about using the card to implement ALS in a network, see the "Network Optical Safety" section.


Note The optical splitters each have a ratio of 1:99. The result is that MON TX and MON RX port power is about 20 dB lower than COM TX and COM RX port power.


4.4.1  OPT-BST Faceplate Ports

The OPT-BST amplifier has eight optical ports located on the faceplate:

MON RX is the output monitor port (receive section).

MON TX is the output monitor port.

COM RX is the input signal port.

LINE TX is the output signal port.

LINE RX is the input signal port (receive section).

COM TX is the output signal port (receive section).

OSC RX is the OSC add input port.

OSC TX is the OSC drop output port.

Figure 4-10 shows the OPT-BST amplifier card faceplate.

Figure 4-10 OPT-BST Faceplate

4.4.2  OPT-BST Block Diagrams

Figure 4-11 shows a simplified block diagram of the OPT-BST card's features.

Figure 4-11 OPT-BST Block Diagram

Figure 4-12 shows a block diagram of how the OPT-BST optical module functions.

Figure 4-12 OPT-BST Optical Module Functional Block Diagram

4.4.3  OPT-BST Power Monitoring

Physical photodiodes P1, P2, P3, and P4 monitor the power for the OPT-BST card. Table 4-6 shows the returned power level values calibrated to each port.

Table 4-6 OPT-BST Port Calibration 

Photodiode
CTC Type Name
Calibrated to Port
Power
PM Parameter

P1

Input Com

COM RX

Channel Power

Supported

P2

Output Line (Total Output)

LINE TX

Channel Power

Supported

Output Line (Signal Output)

P3

Input Line

LINE RX

Channel Power

Supported

P4

Input Line

LINE RX

OSC Power

Supported


The power on the OSC TX and COM TX ports are calculated by adding the insertion loss (IL) to the power reported from P3 and P4.

The PM parameters for the power values are listed in Table 19-32.

For information on the associated TL1 AIDs for the optical power monitoring points, refer the "CTC Port Numbers and TL1 Aids" section in Cisco ONS SONET TL1 Command Guide, Releases 9.2.1 and 9.2.2.

4.4.4  OPT-BST Card-Level Indicators

Table 4-7 describes the three card-level LED indicators on the OPT-BST card.

Table 4-7 OPT-BST Card-Level Indicators  

Card-Level Indicators
Description

Red FAIL LED

The red FAIL LED indicates that the card's processor is not ready or that an internal hardware failure occurred. Replace the card if the red FAIL LED persists.

Green ACT LED

The green ACT LED indicates that the OPT-BST is carrying traffic or is traffic-ready.

Amber SF LED

The amber SF LED indicates a signal failure or condition such as LOS on one or more of the card's ports. The amber SF LED also turns on when the transmit and receive fibers are incorrectly connected. When the fibers are properly connected, the light turns off.


4.4.5  OPT-BST Port-Level Indicators

You can determine the status of the card ports using the LCD screen on the ONS 15454 fan-tray assembly. Use the LCD to view the status of any port or card slot; the screen displays the number and severity of alarms for a given port or slot.

4.5  OPT-BST-E Amplifier Card


Note For hardware specifications, see the "OPT-BST-E Amplifier Card Specifications" section.



Note For OPT-BST-E safety labels, see the "Class 1M Laser Safety Labels" section.


The OPT-BST-E amplifier card is a gain-enhanced version of the OPT-BST card. It is designed to support up to 80 channels at 50-GHz channel spacing. The OPT-BST-E is a C-band, DWDM EDFA with OSC add-and-drop capability. When an OPT-BST-E installed, an OSCM card is needed to process the OSC. You can install the OPT-BST-E in Slots 1 to 6 and 12 to 17. The card's features include:

Fixed gain mode (with programmable tilt)

True variable gain

Gain range of 8 to 23 dBm with the tilt managed at 0 dBm in constant gain mode and output power mode

Enhanced gain range of 23 to 26 dBm with unmanaged tilt

Built-in VOA to control the gain tilt

Fast transient suppression

Nondistorting low-frequency transfer function

Settable maximum output power

Fixed output power mode (mode used during provisioning)

ASE compensation in fixed gain mode

Full monitoring and alarm handling with settable thresholds

OSRI

ALS


Note The optical splitters each have a ratio of 1:99. The result is that MON TX and MON RX port power is about 20 dB lower than COM TX and COM RX port power.


4.5.1  OPT-BST-E Faceplate Ports

The OPT-BST-E amplifier card has eight optical ports located on the faceplate:

MON RX is the output monitor port (receive section).

MON TX is the output monitor port.

COM RX is the input signal port.

LINE TX is the output signal port.

LINE RX is the input signal port (receive section).

COM TX is the output signal port (receive section).

OSC RX is the OSC add input port.

OSC TX is the OSC drop output port.

Figure 4-13 shows the OPT-BST-E amplifier card faceplate.

Figure 4-13 OPT-BST-E Faceplate

4.5.2  OPT-BST-E Block Diagrams

Figure 4-14 shows a simplified block diagram of the OPT-BST-E card's features.

Figure 4-14 OPT-BST-E Block Diagram

Figure 4-15 shows a block diagram of how the OPT-BST-E optical module functions.

Figure 4-15 OPT-BST-E Optical Module Functional Block Diagram

4.5.3  OPT-BST-E Power Monitoring

Physical photodiodes P1, P2, P3, and P4 monitor the power for the OPT-BST-E card. Table 4-8 shows the returned power level values calibrated to each port.

Table 4-8 OPT-BST-E Port Calibration 

Photodiode
CTC Type Name
Calibrated to Port
Power
PM Parameter

P1

Input Com

COM RX

Channel Power

Supported

P2

Output Line (Total Output)

LINE TX

Channel Power

Supported

Output Line (Signal Output)

P3

Input Line

LINE RX

Channel Power

Supported

P4

Input Line

LINE RX

OSC Power

Supported


The power on the OSC-TX and COM-TX ports are calculated by adding the insertion loss (IL) to the power reported from P3 and P4.

The PM parameters for the power values are listed in Table 19-32.

For information on the associated TL1 AIDs for the optical power monitoring points, refer the "CTC Port Numbers and TL1 Aids" section in Cisco ONS SONET TL1 Command Guide, Releases 9.2.1 and 9.2.2.

4.5.4  OPT-BST-E Card-Level Indicators

Table 4-9 describes the three card-level LED indicators on the OPT-BST-E amplifier card.

Table 4-9 OPT-BST-E Card-Level Indicators  

Card-Level Indicators
Description

Red FAIL LED

The red FAIL LED indicates that the card's processor is not ready or that an internal hardware failure occurred. Replace the card if the red FAIL LED persists.

Green ACT LED

The green ACT LED indicates that the OPT-BST-E is carrying traffic or is traffic-ready.

Amber SF LED

The amber SF LED indicates a signal failure or condition such as LOS on one or more of the card's ports. The amber SF LED also turns on when the transmit and receive fibers are incorrectly connected. When the fibers are properly connected, the light turns off.


4.5.5  OPT-BST-E Port-Level Indicators

You can determine the status of the card ports using the LCD screen on the ONS 15454 fan-tray assembly. Use the LCD to view the status of any port or card slot; the screen displays the number and severity of alarms for a given port or slot.

4.6  OPT-BST-L Amplifier Card

(Cisco ONS 15454 only)


Note For hardware specifications, see the "OPT-BST-L Amplifier Card Specifications" section.



Note For OPT-BST-L safety labels, see the "Class 1M Laser Safety Labels" section.


The OPT-BST-L is an L-band, DWDM EDFA with OSC add-and-drop capability. The card is well suited for use in networks that employ dispersion shifted (DS) fiber or SMF-28 single-mode fiber. The OPT-BST-L is designed to ultimately support 64 channels at 50-GHz channel spacing, but in Software R9.0 and earlier it is limited to 32 channels at 100-GHz spacing.When an ONS 15454 has an OPT-BST-L installed, an OSCM card is needed to process the OSC. You can install the OPT-BST-L in Slots 1 to 6 and 12 to 17. The card's features include:

Fixed gain mode (with programmable tilt)

Standard gain range of 8 to 20 dB in the programmable gain tilt mode

True variable gain

20 to 27 dB gain range in the uncontrolled gain tilt mode

Built-in VOA to control gain tilt

Fast transient suppression

Nondistorting low-frequency transfer function

Settable maximum output power

Fixed output power mode (mode used during provisioning)

ASE compensation in fixed gain mode

Full monitoring and alarm handling with settable thresholds

OSRI

ALS


Note The optical splitters each have a ratio of 1:99. The result is that MON TX and MON RX port power is about 20 dB lower than COM TX and COM RX port power.


4.6.1  OPT-BST-L Faceplate Ports

The OPT-BST-L amplifier has eight optical ports located on the faceplate:

MON RX is the output monitor port (receive section).

MON TX is the output monitor port.

COM RX is the input signal port.

LINE TX is the output signal port.

LINE RX is the input signal port (receive section).

COM TX is the output signal port (receive section).

OSC RX is the OSC add input port.

OSC TX is the OSC drop output port.

Figure 4-16 shows the OPT-BST-L card faceplate.

Figure 4-16 OPT-BST-L Faceplate

4.6.2  OPT-BST-L Block Diagrams

Figure 4-17 shows a simplified block diagram of the OPT-BST-L card's features.

Figure 4-17 OPT-BST-L Block Diagram

Figure 4-18 shows a block diagram of how the OPT-BST-L optical module functions.

Figure 4-18 OPT-BST-L Optical Module Functional Block Diagram

4.6.3  OPT-BST-L Power Monitoring

Physical photodiodes P1, P2, P3, P4, and P5 monitor the power for the OPT-BST-L card. Table 4-10 shows the returned power level values calibrated to each port.

Table 4-10 OPT-BST-L Port Calibration 

Photodiode
CTC Type Name
Calibrated to Port
Power
PM Parameter

P1

Input COM

COM RX

Channel Power

Supported

P2

Output Line (Total Output)

LINE TX

Channel Power

Supported

Output Line (Signal Output)

P3

Input OSC

OSC RX

OSC Power

Supported

P4

Input Line

LINE RX

Channel Power

Supported

P5

Input Line

LINE RX

OSC Power

Supported


The power values on the OSC-TX and COM-TX ports are calculated by adding the insertion loss (IL) to the power values reported from P4 and P5.

The OSC power on the LINE TX is calculated by adding the IL to the power reported from P3.

The PM parameters for the power values are listed in Table 19-32.

For information on the associated TL1 AIDs for the optical power monitoring points, refer the "CTC Port Numbers and TL1 Aids" section in Cisco ONS SONET TL1 Command Guide, Releases 9.2.1 and 9.2.2.

4.6.4  OPT-BST-L Card-Level Indicators

Table 4-11 shows the three card-level LEDs on the OPT-BST-L card.

Table 4-11 OPT-BST-L Card-Level Indicators  

Card-Level Indicators
Description

Red FAIL LED

The red FAIL LED indicates that the card's processor is not ready or that an internal hardware failure occurred. Replace the card if the red FAIL LED persists.

Green ACT LED

The green ACT LED indicates that the OPT-BST-L is carrying traffic or is traffic-ready.

Amber SF LED

The amber SF LED indicates a signal failure or condition such as LOS on one or more of the card's ports. The amber SF LED also turns on when the transmit and receive fibers are incorrectly connected. When the fibers are properly connected, the light turns off.


4.6.5  OPT-BST-L Port-Level Indicators

You can determine the status of the card ports using the LCD screen on the ONS 15454 fan-tray assembly. Use the LCD to view the status of any port or card slot; the screen displays the number and severity of alarms for a given port or slot.

4.7  OPT-AMP-L Card

(Cisco ONS 15454 only)


Note For hardware specifications, see the "OPT-AMP-L Preamplifier Card Specifications" section.



Note For OPT-AMP-L card safety labels, see the "Class 1M Laser Safety Labels" section.


The OPT-AMP-L is an L-band, DWDM optical amplifier card consisting of a two-stage EDFA with midstage access loss (MSL) for an external DCU and OSC add-and-drop capability. Using CTC, the card is provisionable as a preamplifier (OPT-PRE) or booster amplifier (OPT-BST), and is well suited for use in networks that employ DS or SMF-28 fiber. The amplifier can operate up to 64 optical transmission channels at 50-GHz channel spacing in the 1570 nm to 1605 nm wavelength range.

When an OPT-AMP-L installed, an OSCM card is needed to process the OSC. You can install the two-slot OPT-AMP-L in Slots 1 to 6 and 12 to 17.

The card has the following features:

Maximum power output of 20 dBm

True variable gain amplifier with settable range from 12 to 24 dBm in the standard gain range and 24 dBm to 35 dbM with uncontrolled gain tilt

Built-in VOA to control gain tilt

Up to 12 dBm MSL for an external DCU

Fast transient suppression; able to adjust power levels in hundreds of microseconds to avoid bit errors in failure or capacity growth situations

Nondistorting low frequency transfer function

Midstage access loss for dispersion compensation unit

Constant pump current mode (test mode)

Constant output power mode (used during optical node setup)

Constant gain mode

Internal ASE compensation in constant gain mode and in constant output power mode

Full monitoring and alarm handling capability

Optical safety support through signal loss detection and alarm at any input port, fast power down control (less than one second), and reduced maximum output power in safe power mode. For details on ALS provisioning for the card, refer to the Cisco ONS 15454 DWDM Procedure Guide. For information on using the card to implement ALS in a network, see the "Network Optical Safety" section.


Note Before disconnecting any OPT AMP-L fiber for troubleshooting, first make sure the OPT AMP-L card is unplugged.


4.7.1  OPT-AMP-L Faceplate Ports

The OPT-AMP-L amplifier card has ten optical ports located on the faceplate:

MON RX is the output monitor port (receive section).

MON TX is the output monitor port.

COM RX is the input signal port.

LINE TX is the output signal port.

LINE RX is the input signal port (receive section).

COM TX is the output signal port (receive section).

OSC RX is the OSC add input port.

OSC TX is the OSC drop output port.

DC TX is the output signal to the DCU.

DC RX is the input signal from the DCU.

Figure 4-19 shows the OPT-AMP-L card faceplate.

Figure 4-19 OPT-AMP-L Faceplate

4.7.2  OPT-AMP-L Block Diagrams

Figure 4-20 shows a simplified block diagram of the OPT-AMP-L card's features.

Figure 4-20 OPT-AMP-L Block Diagram

Figure 4-21 shows a block diagram of how the OPT-AMP-L optical module functions.

Figure 4-21 OPT-AMP-L Optical Module Functional Block Diagram

4.7.3  OPT-AMP-L Power Monitoring

Physical photodiodes P1 through P7 monitor the power for the OPT-AMP-L card. Table 4-12 shows the returned power level values calibrated to each port.

Table 4-12 OPT-AMP-L Port Calibration 

Photodiode
CTC Type Name
Calibrated to Port
Power
PM Parameter

P1

Input COM

COM RX

Channel Power

Supported

P2

Output DC (total power)

DC TX

Channel Power

Supported

Output DC (signal power)

P3

Input DC (input power)

DC RX

Channel Power

Supported

P4

Output Line (total power)

LINE TX

Channel Power

Supported

Output Line (signal power)

P5

Input Line

LINE RX

Channel Power

Supported

P6

Input Line

LINE RX

OSC Power

Supported

P7

Input OSC

OSC RX

OSC Power

Supported


The power values on the OSC-TX and COM-TX ports are calculated by adding the insertion loss (IL) to the power values reported from P5 and P6.

The power values on the LINE TX port is calculated by adding the IL to the power value reported from P7.

The PM parameters for the power values are listed in Table 19-32.

For information on the associated TL1 AIDs for the optical power monitoring points, refer the "CTC Port Numbers and TL1 Aids" section in Cisco ONS SONET TL1 Command Guide, Releases 9.2.1 and 9.2.2.

4.7.4  OPT-AMP-L Card-Level Indicators

Table 4-13 shows the three card-level LEDs on the OPT-AMP-L card.

Table 4-13 OPT-AMP-L Card-Level Indicators  

Card-Level Indicators
Description

Red FAIL LED

The red FAIL LED indicates that the card's processor is not ready or that an internal hardware failure occurred. Replace the card if the red FAIL LED persists.

Green ACT LED

The green ACT LED indicates that the OPT-AMP-L is carrying traffic or is traffic-ready.

Amber SF LED

The amber SF LED indicates a signal failure or condition such as LOS on one or more of the card's ports. The amber SF LED also turns on when the transmit and receive fibers are incorrectly connected. When the fibers are properly connected, the light turns off.


4.7.5  OPT-AMP-L Port-Level Indicators

You can determine the status of the card ports using the LCD screen on the ONS 15454 fan-tray assembly. Use the LCD to view the status of any port or card slot; the screen displays the number and severity of alarms for a given port or slot.

4.8  OPT-AMP-17-C Card


Note For hardware specifications, see the "OPT-AMP-17-C Amplifier Card Specifications" section.



Note For OPT-AMP-17-C safety labels, see the "Class 1M Laser Safety Labels" section.


The OPT-AMP-17-C is a 17-dB gain, C-band, DWDM EDFA amplifier/preamplifier with OSC add-and-drop capability. It supports 80 channels at 50-GHz channel spacing in the C-band (that is, the 1529 nm to 1562.5 nm wavelength range). When an ONS 15454 has an OPT-AMP-17-C installed, an OSCM card is needed to process the OSC. You can install the OPT-AMP-17-C in Slots 1 to 6 and 12 to 17.

The card's features include:

Fixed gain mode (no programmable tilt)

Standard gain range of 14 to 20 dB at startup when configured as a preamplifier

Standard gain range of 20 to 23 dB in the transient mode when configured as a preamplifier

Gain range of 14 to 23 dB (with no transient gain range) when configured as a booster amplifier

True variable gain

Fast transient suppression

Nondistorting low-frequency transfer function

Settable maximum output power

Fixed output power mode (mode used during provisioning)

ASE compensation in fixed gain mode

Full monitoring and alarm handling with settable thresholds

OSRI

ALS

4.8.1  OPT-AMP-17-C Faceplate Ports

The OPT-AMP-17-C amplifier card has eight optical ports located on the faceplate:

MON RX is the output monitor port (receive section).

MON TX is the output monitor port.

COM RX is the input signal port.

LINE TX is the output signal port.

LINE RX is the input signal port (receive section).

COM TX is the output signal port (receive section).

OSC RX is the OSC add input port.

OSC TX is the OSC drop output port.

Figure 4-22 shows the OPT-AMP-17-C amplifier card faceplate.

Figure 4-22 OPT-AMP-17-C Faceplate

4.8.2  OPT-AMP-17-C Block Diagrams

Figure 4-23 shows a simplified block diagram of the OPT-AMP-17C card's features.

Figure 4-23 OPT-AMP17-C Block Diagram

Figure 4-24 shows how the OPT-AMP-17-C optical module functions.

Figure 4-24 OPT-AMP-17-C Optical Module Functional Block Diagram

4.8.3  OPT-AMP-17-C Automatic Power Control

A transient gain range of 20 to 23 dB is available to APC in order to permit other amplifiers to reach their expected set points. However, operation in this range is not continuous. At startup, the OPT-AMP-17-C card caps the gain at a maximum of 20 dB.


Note When the OPT-AMP-17-C operates as a booster amplifier, APC does not control its gain.


4.8.4  OPT-AMP-17-C Power Monitoring

Physical photodiodes P1, P2, P3, P4, and P5 monitor power for the OPT-AMP-17-C card. Table 4-14 shows the returned power level values calibrated to each port.

Table 4-14 OPT-AMP-17-C Port Calibration 

Photodiode
CTC Type Name
Calibrated to Port
Power
PM Parameter

P1

Input COM

COM RX

Channel Power

Supported

P2

Output Line (Total Output)

LINE TX

Channel Power

Supported

Output Line (Signal Output)

P3

Input Line

LINE RX

Channel Power

Supported

P4

Input Line

LINE RX

OSC Power

Supported

P5

Input OSC

OSC RX

OSC Power

Supported


The power on the OSC-TX and COM-TX ports are calculated by adding the insertion loss (IL) to the power reported from P3 and P4.

The OSC power on the LINE TX is calculated by adding the IL to the power reported from P5.

The PM parameters for the power values are listed in Table 19-32.

For information on the associated TL1 AIDs for the optical power monitoring points, refer the "CTC Port Numbers and TL1 Aids" section in Cisco ONS SONET TL1 Command Guide, Releases 9.2.1 and 9.2.2.

4.8.5  OPT-AMP-17-C Card-Level Indicators

Table 4-15 shows the three card-level LEDs on the OPT-AMP-17-C card.

Table 4-15 OPT-AMP-17-C Card-Level Indicators  

Card-Level Indicators
Description

Red FAIL LED

The red FAIL LED indicates that the card's processor is not ready or that an internal hardware failure occurred. Replace the card if the red FAIL LED persists.

Green ACT LED

The green ACT LED indicates that the OPT-AMP-17-C is carrying traffic or is traffic-ready.

Amber SF LED

The amber SF LED indicates a signal failure or condition such as LOS on one or more of the card's ports. The amber SF LED also turns on when the transmit and receive fibers are incorrectly connected. When the fibers are properly connected, the light turns off.


4.8.6  OPT-AMP-17-C Port-Level Indicators

You can determine the status of the card ports using the LCD screen on the ONS 15454 fan-tray assembly. Use the LCD to view the status of any port or card slot; the screen displays the number and severity of alarms for a given port or slot.

4.9  OPT-AMP-C Card


Note For hardware specifications, see the "OPT-AMP-C Amplifier Card Specifications" section.



Note For OPT-AMP-C card safety labels, see the "Class 1M Laser Safety Labels" section.


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

The OPT-AMP-C card supports 80 channels at 50-GHz channel spacing in the C-band (that is, the 1529 nm to 1562.5 nm wavelength range). When an ONS 15454 has an OPT-AMP-C card installed, an OSCM card is needed to process the OSC. You can install the OPT-AMP-C card in Slots 1 to 6 and 12 to 17. Slots 2 to 6 and Slots 12 to 16 are the default slots for provisioning the OPT-AMP-C card as a preamplifier, and slots 1 and 17 are the default slots for provisioning the OPT-AMP-C card as a booster amplifier.

The card's features include:

Fast transient suppression

Nondistorting low-frequency transfer function

Mid-stage access for DCU

Constant pump current mode (test mode)

Fixed output power mode (mode used during provisioning)

Constant gain mode

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 to 24 dB

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

Full monitoring and alarm handling with settable thresholds

OSRI

ALS

4.9.1  OPT-AMP-C Card Faceplate Ports

The OPT-AMP-C amplifier card has 10 optical ports located on the faceplate:

MON RX is the output monitor port (receive section).

MON TX is the output monitor port.

COM RX is the input signal port.

COM TX is the output signal port (receive section).

DC RX is the input DCU port.

DC TX is the output DCU port.

OSC RX is the OSC add input port.

OSC TX is the OSC drop output port.

LINE RX is the input signal port (receive section).

LINE TX is the output signal port.

Figure 4-25 shows the OPT-AMP-C amplifier card faceplate.

Figure 4-25 OPT-AMP-C Card Faceplate

4.9.2  OPT-AMP-C Card Block Diagrams

Figure 4-26 shows a simplified block diagram of the OPT-AMP-C card features.

Figure 4-26 OPT-AMP-C Block Diagram

Figure 4-27 shows how the OPT-AMP-C optical module functions.

Figure 4-27 OPT-AMP-C Optical Module Functional Block Diagram

4.9.3  OPT-AMP-C Card Power Monitoring

Physical photodiodes P1 through P7 monitor the power for the OPT-AMP-C card (see Table 4-16).

Table 4-16 OPT-AMP-C Port Calibration 

Photodiode
CTC Type Name
Calibrated to Port
Power
PM Parameters

P1

Input COM

COM RX

Channel Power

Supported

P2

Output DC (total power)

DC TX

Channel Power

Supported

Output DC (signal power)

P3

Input DC (input power)

DC RX

Channel Power

Supported

P4

Output Line (total power)

LINE TX

Channel Power

Supported

Output Line (signal power)

P5

Input Line

LINE RX

Channel Power

Supported

P6

Input Line

LINE RX

OSC Power

Supported

P7

Input OSC

OSC RX

OSC Power

Supported


The power on the OSC-TX and COM-TX ports are calculated by adding the insertion loss (IL) to the power reported from P5 and P6.

The OSC power on the LINE TX is calculated by adding the IL to the power reported from P7.

The PM parameters for the power values are listed in Table 19-32.

For information on the associated TL1 AIDs for the optical power monitoring points, refer the "CTC Port Numbers and TL1 Aids" section in Cisco ONS SONET TL1 Command Guide, Releases 9.2.1 and 9.2.2.

4.9.4  OPT-AMP-C Card-Level Indicators

Table 4-17 shows the three card-level LEDs on the OPT-AMP-C card.

Table 4-17 OPT-AMP-C Card-Level Indicators  

Card-Level Indicators
Description

Red FAIL LED

The red FAIL LED indicates that the card's processor is not ready or that an internal hardware failure occurred. Replace the card if the red FAIL LED persists.

Green ACT LED

The green ACT LED indicates that the OPT-AMP-C card is carrying traffic or is traffic-ready.

Amber SF LED

The amber SF LED indicates a signal failure or condition such as LOS on one or more of the card's ports. The amber SF LED also turns on when the transmit and receive fibers are incorrectly connected. When the fibers are properly connected, the light turns off.


4.9.5  OPT-AMP-C Card Port-Level Indicators

You can determine the status of the card ports using the LCD screen on the ONS 15454 fan-tray assembly. Use the LCD to view the status of any port or card slot; the screen displays the number and severity of alarms for a given port or slot.

4.10  OPT-RAMP-C and OPT-RAMP-CE Cards

(Cisco ONS 15454 and ONS 15454 M6 only)


Note For hardware specifications, see the "OPT-RAMP-C Amplifier Card Specifications" section and "OPT-RAMP-CE Amplifier Card Specifications" section.



Note For OPT-RAMP-C or OPT-RAMP-CE card safety labels, see the "Class 1M Laser Safety Labels" section.


The OPT-RAMP-C card is a double-slot card that improves unregenerated sections in long spans using the span fiber to amplify the optical signal. Different wavelengths in C-band receive different gain values. To achieve Raman amplification, two Raman signals (that do not carry any payload or overhead) are required to be transmitted on the optical fiber because the gain generated by one signal is not flat. The energy of these Raman signals transfer to the higher region of the spectrum thereby amplifying the signals transmitted at higher wavelengths. The Raman effect reduces span loss but does not compensate it completely.

When the Raman optical powers are set correctly, a gain profile with limited ripple is achieved. The wavelengths of the Raman signals are not in the C-band of the spectrum (used by MSTP for payload signals). The two Raman wavelengths are fixed and always the same. Due to a limited Raman gain, an EDFA amplifier is embedded into the card to generate a higher total gain. An embedded EDFA gain block provides a first amplification stage, while the mid stage access (MSA) is used for DCU loss compensation.

The OPT-RAMP-CE card is a 20 dBm output power, gain-enhanced version of the OPT-RAMP-C card and is optimized for short spans. The OPT-RAMP-C and OPT-RAMP-CE cards can support up to 80 optical transmission channels at 50-GHz channel spacing over the C-band of the optical spectrum (wavelengths from 1529 nm to 1562.5 nm). To provide a counter-propagating Raman pump into the transmission fiber, the Raman amplifier provides up to 500 mW at the LINE-RX connector. The OPT-RAMP-C or OPT-RAMP-CE card can be installed in Slots 1 to 5 and 12 to 16, and supports all network configurations. However, the OPT-RAMP-C or OPT-RAMP-CE card must be equipped on both endpoints of a span.

The Raman total power and Raman ratio can be configured using CTC. For information on how to configure the Raman parameters, refer the Cisco ONS 15454 DWDM Procedure Guide. The Raman configuration can be viewed on the Maintenance > Installation tab.

The features of the OPT-RAMP-C and OPT-RAMP-CE card include:

Raman pump with embedded EDFA gain block

Raman section: 500 mW total pump power for two pump wavelengths

EDFA section:

OPT-RAMP-C: 16 dB gain and 17 dB output power

OPT-RAMP-CE: 11 dB gain and 20 dB output power

Gain Flattening Filter (GFF) for Raman plus EDFA ripple compensation

MSA for DC units

VOA for DC input power control

Full monitoring of pump, OSC, and signal power

Fast gain control for transient suppression

Low-FIT (hardware-managed) optical laser safety

Hardware output signals for LOS monitoring at input photodiodes

Optical service channel add and drop filters

Raman pump back-reflection detector

4.10.1  Card Faceplate Ports

The OPT-RAMP-C and OPT-RAMP-CE cards have ten optical ports located on the faceplate:

MON RX is the output monitor port (receive section).

MON TX is the output monitor port.

COM RX is the input signal port (receive section).

COM TX is the output signal port.

DC RX is the input DCU port.

DC TX is the output DCU port.

OSC RX is the OSC add input port.

OSC TX is the OSC drop output port.

LINE RX is the input signal port (receive section).

LINE TX is the output signal port.

Figure 4-28 shows the OPT-RAMP-C card faceplate.

Figure 4-28 OPT-RAMP-C Faceplate

The OPT-RAMP-CE card faceplate is the same as that of the OPT-RAMP-C card.

4.10.2  Card Block Diagram

Figure 4-29 shows a simplified block diagram of the OPT-RAMP-C and OPT-RAMP-CE card features.

Figure 4-29 OPT-RAMP-C and OPT-RAMP-CE Block Diagram

Figure 4-30 shows a block diagram of how the OPT-RAMP-C and OPT-RAMP-CE card functions.

Figure 4-30 OPT-RAMP-C and OPT-RAMP-CE Card Functional Block Diagram

Two Raman pump lasers are combined internally and launched in-fiber at the LINE-RX port, thereby counter-propagating with the DWDM signal. An EDFA gain block provides further amplification of the DWDM signal, which allows regulated output power entry in the mid stage access and acts upon the VOA attenuation. While the optical filters are present for the OSC add and drop functions, the OSC signal counter-propagates with the DWDM signal. Two monitor ports, MON-RX and MON-TX, are provided at the EDFA input and output stages and are used to evaluate the total gain ripple. A total of 12 photodiodes (PDs) are provided, allowing full monitoring of RP power, DWDM power, and OSC power in each section of the device. In particular, PD12 allows the detection of the remnant Raman pump power at the end of the counter-pumped span, while PD11 detects the amount of Raman pump power backscattered by the LINE-RX connector and transmission fiber.

The EDFA section calculates the signal power, considering the expected ASE power contribution to the total output power. The signal output power or the signal gain can be used as feedback signals for the EDFA pump power control loop. The ASE power is derived according to the working EDFA gain. PD2, PD3, and PD4 provide the total power measured by the photodiode and the signal power is derived by calculating the total power value. The insertion loss of the main optical path and the relative optical attenuation of the two monitor ports are stored into the card's not-volatile memory.

4.10.3  OPT-RAMP-C and OPT-RAMP-CE Card Power Monitoring

Physical photodiodes PD1 through PD12 monitor the power for the OPT-RAMP-C and OPT-RAMP-CE cards (see Table 4-18).

Table 4-18 OPT-RAMP-C and OPT-RAMP-CE Port Calibration 

Photodiode
CTC Type Name
Calibrated to Port

PD1

EDFA DWDM Input Power

LINE-RX

PD2

EDFA Output Power (pre-VOA attenuation)

DC-TX (port with 0 dB VOA attenuation)

PD3

DCU Input Power

DC-TX

PD4

DCU Output Power

DC-RX

PD5

DWDM Input Power

COM-RX

PD6

OSC ADD Input Power

OSC-RX

PD7

OSC DROP Output Power

OSC-TX

PD8

Pump 1 in-fiber Output Power

LINE-RX

PD9

Pump 2 in-fiber Output Power

LINE-RX

PD10

Total Pump in-fiber Output Power

LINE-RX

PD11

Back-Reflected Pump Power

LINE-RX

PD12

Remnant Pump Power

LINE-TX


For information on the associated TL1 AIDs for the optical power monitoring points, refer the "CTC Port Numbers and TL1 Aids" section in Cisco ONS SONET TL1 Command Guide, Releases 9.2.1 and 9.2.2.

4.10.4  OPT-RAMP-C and OPT-RAMP-CE Card Level Indicators

Table 4-19 shows the three card-level LEDs on the OPT-RAMP-C and OPT-RAMP-CE cards.

Table 4-19 OPT-RAMP-C and OPT-RAMP-CE Card-Level Indicators

Card-Level Indicators
Description

Red FAIL LED

The red FAIL LED indicates that the card processor is not ready or that an internal hardware failure occurred. Replace the card if the red FAIL LED persists.

Green ACT LED

The green ACT LED indicates that the OPT-RAMP-C or OPT-RAMP-CE card is carrying traffic or is traffic-ready.

Amber SF LED

The amber SF LED indicates a signal failure or condition such as LOS on one or more of the card ports. The amber SF LED also turns on when the transmit and receive fibers are incorrectly connected. When the fibers are properly connected, the light turns off.


4.10.5  OPT-RAMP-C and OPT-RAMP-CE Card Port-Level Indicators

You can determine the status of the card ports using the LCD screen on the ONS 15454 fan-tray assembly. Use the LCD to view the status of any port or card slot; the screen displays the number and severity of alarms for a given port or slot.