Chapter 2 Cards Specifications

2.2.8 Mechanical Equipment

2.2.8 Mechanical Equipment

The following section describes mechanical equipment such as the bay frame, optical shelf, dispersion compensation shelf, Y-cable shelf, fiber storage units, and 32-channel patch-panel units.

2.2.8.1 Bay Frame

DWDM cards use a generic standard bay frame, which is compliant with ANSI Standard Seismic 19-inch and 23-inch Bay Frames (Telcordia GR-63-CORE) and/or ETSI 600 mm x 300 mm (ETS 300-119, ETS 300-019, CEI EN 60917 and IEC 61587).

Floor mounting depends on the frame or cabinet that the customer chooses.

2.2.8.2 Optical Shelf

The shelf assemblies used in the ONS 15454 DWDM system and SONET/SDH systems are the same. The ONS 15454 is simple to engineer and flexible, in order to reduce the equipping rules as much as possible.

The system dimensions for an ONS 15454 ETSI rack are 617 mm(18.17”) high x 432 mm (17”) wide x 280 mm (11”) deep. The dimensions of the ANSI system are 18.1” (461.6 mm) high x 17”(431.8 mm) wide x 12”(305.0 mm) deep. A total of four shelves fit into a standard ANSI rack. A total of three shelves fit into ETSI racks.

The subrack has 17 card slots, which are numbered from 1 starting at the left. Each slot is labeled with an icon that must match the icon on the plug-in card’s faceplate. This enables easy identification of card/slot compatibility. Slots 7 through 11, indicated in white, are dedicated to system operations. These slots are known as common-control card slots. Slots 1 through 6 and 12 through 17, indicated in yellow and blue, are dedicated to traffic cards, such as OSC cards, optical add/drop cards, optical amplifier cards, and transponder/muxponder cards.

2.2.8.3 Dispersion Compensation Shelf

The dispersion compensation shelf is 1 RU in height. Two DCUs (one for each direction) can be housed in the dispersion compensation shelf. The shelf is not powered or cooled because the DCUs are optically passive.

2.2.8.4 Y-Cable Shelf

The Y-cable shelf houses up to eight Y-cable modules and all relevant patchcords. The Y-cable shelf has a height of 2 RU and can be installed in 19”(482.6 mm) ANSI or ETSI racks. See Figure 2-14.

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

 

July 2006

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Cisco Systems 15454 Mechanical Equipment, Bay Frame, Optical Shelf, Dispersion Compensation Shelf, Cable Shelf

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.