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 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

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 "Card Slot Requirements" section 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 seven 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 amplicier (OPT-AMP-C)


Note The OPT-AMP-L preamplifier, OPT-AMP-C and OPT-AMP-17-C amplifiers are software-configurable as a preamplifier or as a booster amplifier.


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 card and operation, administration, maintenance, and provisioning (OAM&P) functions such as provisioning, controls, and alarms.

4.1.1  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 have 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.


4.1.2  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

OPT-PRE

Yes

Yes

Yes

Yes

Yes

Yes

Yes

Yes

Yes

OPT-BST

Yes

Yes

Yes

Yes

Yes

Yes

Yes

Yes

Yes

OPT-BST-E

No

No

Yes

Yes

Yes

Yes

Yes

Yes

Yes

OPT-BST-L

No

No

No

No

No

Yes

Yes

Yes

Yes

OPT-AMP-L

No

No

No

No

No

Yes

Yes

Yes

Yes

OPT-AMP-17-C

No

No

No

No

No

No

No

Yes

Yes

OPT-AMP-C

No

No

No

No

No

No

No

No

Yes


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 Label

Figure 4-1 shows the Class 1M Laser Product label. 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 Label

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.

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 shows the FDA Statement label. This label represents 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

4.2.5  Shock Hazard Label

Figure 4-5 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 4-5 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 4-6 shows the OPT-PRE amplifier card faceplate.

Figure 4-6 OPT-PRE Faceplate

4.3.2  OPT-PRE Block Diagrams

Figure 4-7 shows a simplified block diagram of the OPT-PRE card's features.

Figure 4-7 OPT-PRE Block Diagram

Figure 4-8 shows the a block diagram of how the OPT-PRE optical module functions.

Figure 4-8 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 4-3 shows the returned power level values calibrated to each port.

Table 4-3 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, Release 8.5.

4.3.4  OPT-PRE Amplifier Card-Level Indicators

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

Table 4-4 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 Ampifier 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 4-9 shows the OPT-BST amplifier card faceplate.

Figure 4-9 OPT-BST Faceplate

4.4.2  OPT-BST Block Diagrams

Figure 4-10 shows a simplified block diagram of the OPT-BST card's features.

Figure 4-10 OPT-BST Block Diagram

Figure 4-11 shows a block diagram of how the OPT-BST optical module functions.

Figure 4-11 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 4-5 shows the returned power level values calibrated to each port.

Table 4-5 OPT-BST Port Calibration 

Photodiode
CTC Type Name
Calibrated to Port

P1

Input Com

COM RX

P2

Output Line (Total Output)

LINE TX

Output Line (Signal Output)

P3

Output COM

LINE RX

P4

Output OSC


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, Release 8.5.

4.4.4  OPT-BST Card-Level Indicators

Table 4-6 describes the three card-level LED indicators on the OPT-BST card.

Table 4-6 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 4-12 shows the OPT-BST-E amplifier card faceplate.

Figure 4-12 OPT-BST-E Faceplate

4.5.2  OPT-BST-E Block Diagrams

Figure 4-13 shows a simplified block diagram of the OPT-BST-E card's features.

Figure 4-13 OPT-BST-E Block Diagram

Figure 4-14 shows a block diagram of how the OPT-BST-E optical module functions.

Figure 4-14 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 4-7 shows the returned power level values calibrated to each port.

Table 4-7 OPT-BST-E Port Calibration 

Photodiode
CTC Type Name
Calibrated to Port

P1

Input Com

COM RX

P2

Output Line (Total Output)

LINE TX

Output Line (Signal Output)

P3

Output COM

LINE RX

P4

Output OSC


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, Release 8.5.

4.5.4  OPT-BST-E Card-Level Indicators

Table 4-8 describes the three card-level LED indicators on the OPT-BST-E amplifier card.

Table 4-8 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


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 R8.5 and earlieris 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 4-15 shows the OPT-BST-L card faceplate.

Figure 4-15 OPT-BST-L Faceplate

4.6.2  OPT-BST-L Block Diagrams

Figure 4-16 shows a simplified block diagram of the OPT-BST-L card's features.

Figure 4-16 OPT-BST-L Block Diagram

Figure 4-17 shows a block diagram of how the OPT-BST-L optical module functions.

Figure 4-17 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 4-9 shows the returned power level values calibrated to each port.

Table 4-9 OPT-BST-L Port Calibration 

Photodiode
CTC Type Name
Calibrated to Port

P1

Input COM

COM RX

P2

Output Line (Total Output)

LINE TX

Output Line (Signal Output)

P3

Output OSC-RX

OSC-RX

P4

Output COM

LINE RX

P5

Output OSC-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, Release 8.5.

4.6.4  OPT-BST-L Card-Level Indicators

Table 4-10 shows the three card-level LEDs on the OPT-BST-L card.

Table 4-10 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


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 4-18 shows the OPT-AMP-L card faceplate.

Figure 4-18 OPT-AMP-L Faceplate

4.7.2  OPT-AMP-L Block Diagrams

Figure 4-19 shows a simplified block diagram of the OPT-AMP-L card's features.

Figure 4-19 OPT-AMP-L Block Diagram

Figure 4-20 shows a block diagram of how the OPT-AMP-L optical module functions.

Figure 4-20 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 4-11 shows the returned power level values calibrated to each port.

Table 4-11 OPT-AMP-L Port Calibration 

Photodiode
CTC Type Name
Calibrated to Port

P1

Input COM Power

COM RX

P2

Output DC (total power)

DC TX

Output DC (signal power)

P3

Input DC (input power)

DC RX

P4

Output Line Transmit (total power)

LINE TX

Output Line Transmit (signal power)

P5

Input Line Receive Power

LINE RX

P6

Output OSC Receive Power

OSC RX

P7

Input OSC Transmit Power


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, Release 8.5.

4.7.4  OPT-AMP-L Card-Level Indicators

Table 4-12 shows the three card-level LEDs on the OPT-AMP-L card.

Table 4-12 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 4-21 shows the OPT-AMP-17-C amplifier card faceplate.

Figure 4-21 OPT-AMP-17-C Faceplate

4.8.2  OPT-AMP-17-C Block Diagrams

Figure 4-22 shows a simplified block diagram of the OPT-AMP-17C card's features.

Figure 4-22 OPT-AMP17-C Block Diagram

Figure 4-23 shows how the OPT-AMP-17-C optical module functions.

Figure 4-23 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 4-13 shows the returned power level values calibrated to each port.

Table 4-13 OPT-AMP-17-C Port Calibration 

Photodiode
CTC Type Name
Calibrated to Port

P1

Input COM

COM RX

P2

Output Line (Total Output)

LINE TX

Output Line (Signal Output)

P5

Output OSC-RX

OSC-RX

P3

Output COM

LINE RX

P4

Output OSC-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, Release 8.5.

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

Table 4-14 shows the three card-level LEDs on the OPT-AMP-17-C card.

Table 4-14 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 4-24 shows the OPT-AMP-C amplifier card faceplate.

Figure 4-24 OPT-AMP-C Card Faceplate

4.9.2  OPT-AMP-C Card Block Diagrams

Figure 4-25 shows a simplified block diagram of the OPT-AMP-17C card features.

Figure 4-25 OPT-AMP-C Block Diagram

Figure 4-26 shows how the OPT-AMP-C optical module functions.

Figure 4-26 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 4-15).

Table 4-15 OPT-AMP-C Port Calibration 

Photodiode
CTC Type Name
Calibrated to Port

P1

Input COM Power

COM RX

P2

Output Line Transmit (total power)

Line TX

Output Line Transmit (signal power)

P3

Input Line Receive Power

Line RX

P4

Input OSC Receive Power

P5

Output OSC Transmit Power

OSC-RX

P6

Output DC Transmit (total power)

DC-TX

Output DC Transmit (signal power)

P7

Input DC Receive Power

DC-RX


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, Release 8.5.

4.9.4  OPT-AMP-C Card-Level Indicators

Table 4-14 shows the three card-level LEDs on the OPT-AMP-C card.

Table 4-16 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.