Chapter 2 Cards Specifications

2.2.4 Optical Amplifiers

Figure 2-9shows the internal functional structure for the OPT-BST-L card.

Figure 2-9 OPT-BST-L Card Functional Block Diagram

 

MON TX

OSC RX

 

 

 

 

P3

 

COM RX

P1

P2

 

LINE TX

 

 

 

APR

 

 

 

signal

 

COM TX

 

 

 

LINE RX

 

P4 in RX

 

P5 OSC

 

 

MON RX

 

OSC TX

134976

P Physical photodiode

 

 

 

Optical loss (in dB) caused by the OPT-BST-L monitor ports is printed on the card faceplate. The OPT-BST-L is a single-slot bidirectional card with three LEDs and eight LC-PC-II optical connectors on the card faceplate.

2.2.4.4 OPT-AMP-L Card

The OPT-AMP-L preamplifier card can operate up to 64 optical transmission channels with 50-GHz channel spacing over the L-band optical spectrum (wavelengths from 1570 nm to 1605 nm). The OPT-AMP-L is an L-band DWDM optical amplifier module consisting of a two-stage EDFA with a MAL section for allocation of DCU and with the capability to add/drop the OSC. The OPT-AMP-L preamplifier is software configurable as a preamplifier or as a booster amplifier.

To control gain tilt, the card is equipped with a built-in VOA managed by the card’s microprocessor. The VOA can also be used to pad the DCU to a reference value.

The OPT-AMP-L card provides the following features:

True variable gain

Fast transient suppression

Nondistorting low frequency transfer function

Settable maximum output power

Fixed Output Power mode (mode used during provisioning)

Constant drive current mode (test mode)

MAL support for a fiber-based DCU

ASE compensation in Fixed Gain mode

Full monitoring and alarm handling capability with settable thresholds

Supported optical safety functionality by means of signal loss detection and alarm, fast power down control and reduced maximum output power in safe power mode

Cisco ONS 15454 DWDM Engineering and Planning Guide, Release 7.x

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July 2006

 

 

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Cisco Systems 15454 specifications OPT-AMP-L Card, OPT-BST-L Card Functional Block Diagram

15454 specifications

Cisco Systems' 15454 is a leading optical networking platform designed to address a range of connectivity needs for service providers, enterprises, and data centers. As part of the Cisco ONS (Optical Networking System) portfolio, the 15454 provides advanced capabilities that cater to the evolving demands of high-performance network requirements.

At its core, the Cisco 15454 is built for scalability and versatility. It supports a variety of transmission methods, including SONET (Synchronous Optical Networking), SDH (Synchronous Digital Hierarchy), and WDM (Wavelength Division Multiplexing). This flexibility makes the platform ideal for deploying both legacy services and next-generation applications.

One of the standout features of the 15454 is its ability to support high-capacity wavelengths, allowing for greater bandwidth utilization across fiber networks. With advanced Dense Wavelength Division Multiplexing (DWDM) technology, the platform ensures efficient use of the available fiber and extends the distance over which data can be transmitted. This results in reduced operational costs while maximizing throughput.

The Cisco 15454 also comes equipped with an array of interfaces supported by its modular design. The platform can accommodate Ethernet, SONET/SDH, and IP services, which means it can seamlessly handle a wide range of protocols. The modular architecture allows network operators to tailor the system to their specific requirements, offering a variety of line cards and interfaces to choose from.

Another critical characteristic of the 15454 is its built-in protection mechanisms. The system offers diverse and automatic protection schemes such as optical Layer 1 protection, ensuring high availability and network resilience. This capability is essential for mission-critical applications where uptime is paramount.

Moreover, the platform is complemented by Cisco's sophisticated management solutions, which streamline the operational management of the network. With tools that provide in-depth monitoring and troubleshooting capabilities, network administrators can maintain optimal performance and quickly respond to any issues that may arise.

In summary, the Cisco Systems 15454 is a robust and adaptable optical networking solution. Its main features, including advanced DWDM capabilities, modular architecture, protocol versatility, and enhanced protection mechanisms, make it a preferred choice for organizations looking to scale their network infrastructure while ensuring high service reliability and performance. Whether for expanding bandwidth or modernizing legacy networks, the Cisco 15454 stands out as a powerful tool in the ever-evolving landscape of telecommunications.