Chapter 1 Overview

General Reminders and Warnings

General Reminders and Warnings

Review these reminders and warnings before inspecting and cleaning your fiber-optic connections.

Warning Because invisible radiation may be emitted from the aperture of the port when no fiber cable is connected, avoid exposure to radiation and do not stare into open apertures. Statement 125

Warning Class 1M laser radiation when open. Do not view directly with optical instruments. Statement 281

Warning Laser radiation. Do not view directly with optical instruments. Class 1M laser product. Statement 283

Warning For diverging beams, viewing the laser output with certain optical instruments within a distance of 100 mm may pose an eye hazard. For collimated beams, viewing the laser output with certain optical instruments designed for use at a distance may pose an eye hazard. Statement 282

•Never touch the end face of the fiber connectors.

•Always inspect the connectors and adapters before you clean and before you make a connection.

–Always turn off any laser sources before you inspect fiber connectors, optical components, and bulkheads. Never look into a fiber while the system lasers are on. Never connect a fiber to a fiberscope while the system lasers are on.

–Always make sure that the cable is disconnected at both ends or that the card or pluggable receiver is removed from the chassis.

–Never use unfiltered handheld magnifiers and focusing optics to inspect fiber connectors.

–Always wear the appropriate safety glasses when required in your area. Be sure that any laser safety glasses meet federal and state regulations and are matched to the lasers used within your environment.

•Always keep a protective cap on unplugged fiber connectors.

–Always store unused protective caps in a resealable container to prevent the possibility of transferring dust to the fiber. Locate the containers near the connectors for easy access.

Fiber-Optic Connectors in a Multishelf System

The Cisco CRS-1 fiber-optic cleaning kit cleans all multiferrule (MT) optics in the Cisco CRS-1 router, which is shown in Figure 1-1and Figure 1-2. In a multishelf system, the connection points include:

•Optical array cable connectors: the connectors on the end of each fiber optic cable. These cables connect the S13 fabric cards in the line card chassis (LCC) to the OIMs in the fabic card chassis (FCC).

•Bulkhead array connectors: the optical connections on S13 fabric cards in the LCC and OIMs on the fabric card chassis (FCC).

Cisco CRS-1 Carrier Routing System Fiber-Optic Cleaning Guide

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Cisco Systems CRS-1 manual General Reminders and Warnings, Fiber-Optic Connectors in a Multishelf System
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CRS-1 specifications

Cisco Systems' Carrier Routing System (CRS-1) is a cutting-edge, high-capacity router designed to meet the demands of service providers and large enterprises. Introduced in the early 2000s, the CRS-1 represents a significant leap forward in routing technology, offering unparalleled performance, scalability, and reliability.

One of the primary features of the CRS-1 is its exceptional scalability. The system is built on a modular architecture that allows for easy upgrades and expansions. This enables service providers to start with a configuration that suits their immediate needs while having the flexibility to expand as traffic demands grow. The CRS-1 supports a wide range of line cards, enabling data, voice, and video to be managed on a single platform, which simplifies network management and reduces operating costs.

The CRS-1 leverages advanced technologies that enable it to deliver impressive performance. With the ability to handle up to 92 terabits per second of throughput, the router is capable of supporting a vast number of connections, making it well-suited for large-scale service providers and data centers. This level of performance is powered by Cisco’s proprietary silicon technology, which optimizes the packet forwarding process and enhances overall efficiency.

Another key characteristic of the CRS-1 is its strong focus on reliability and redundancy. The system is designed with high availability in mind, ensuring that it can continue to operate seamlessly even in the event of hardware failures. Redundant components, such as power supplies and route processors, allow the CRS-1 to maintain its performance and uptime, a critical requirement for mission-critical network operations.

Additionally, the CRS-1 supports a wide variety of protocols and technologies, including Internet Protocol (IP), Multiprotocol Label Switching (MPLS), and various service provider features. This versatility makes it a compelling choice for organizations looking to implement advanced networking capabilities, such as Quality of Service (QoS) and traffic engineering.

In summary, the Cisco Systems CRS-1 stands out as a formidable solution for modern routing needs. Its modular design, exceptional scalability, robust performance, reliability, and support for multiple protocols and services make it an ideal choice for service providers and enterprises seeking to future-proof their networks. As the demand for bandwidth continues to surge, the CRS-1 remains a pivotal component in the evolution of networking infrastructure.
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