Chapter 2 Card Reference

2.2 TSC Card

2.2 TSC Card

Note For hardware specifications, see the “A.2.1 TSC Card Specifications” section on page A-5.

Caution Do not operate the ONS 15600 with an unprotected, single TSC card or a single SSXC card installed. Always operate the shelf with one active card and one protect card for each of these control cards.

The TSC card performs all system-timing functions for each ONS 15600. The TSC card monitors the recovered clocks from each traffic card and two building integrated timing supply (BITS) interfaces for frequency accuracy. The TSC card is provisionable, allowing timing from any optical interface source, a BITS input source, or the internal Stratum 3E as the system-timing reference. You can provision any of the clock inputs as primary or secondary timing sources. If you specify external timing references, your options are BITS1, BITS2, and the internal Stratum 3E sources. If you select line timing, you can specify up to two line ports from which to derive timing, as well as the internal stratum 3E sources. The TSC card also supports BITS OUT. A slow-reference tracking loop allows the TSC to synchronize with the recovered clock and enables holdover if the reference is lost.

The TSC card also provides shelf control related functions. The TSC card has a 100-Mbps Ethernet link to each card on the shelf and monitors the presence of these cards. The TSC provides bulk memory for nonvolatile storage of system software and data and provides EIA-TIA 232 and Ethernet customer interfaces. The TSC card processes and routes line and section DCC traffic as well as routing the K1, K2, and K3 overhead bytes between traffic (line) cards and SSXC cards. The TSC card controls and monitors the shelf fans and all of the alarm interfaces.

2.2.1 TSC Slots and Connectors

Install TSC cards in Slots 5 and 10 for redundancy. If the active TSC card fails, timing reference and control function switches to the protect TSC card.

Note All TSC card protection switches conform to the Telcordia protection switching standard of equal to or less than 50 ms.

The TSC card has an RJ-45 10/100 Base-T LAN port on the faceplate. Two additional RJ-45

10/100 Base-T LAN ports and two RS-232 DB-9 type craft user interfaces are available via the Customer Access Panel (CAP) on the backplane.

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Cisco Systems ONS 15600 manual TSC Card, TSC Slots and Connectors
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ONS 15600 specifications

Cisco Systems ONS 15600 is a highly versatile optical networking platform designed to meet the demands of modern telecommunications and data services. This multiservice edge platform supports various transmission mediums and offers a wide array of features that enable efficient data transport. Ideal for service providers and large enterprises, the ONS 15600 is engineered to provide scalable and reliable optical transport solutions.

One of the notable features of the ONS 15600 is its capability to support multiple protocols, including SONET/SDH, Ethernet, OTN, and legacy TDM services. This flexibility allows users to tailor their networks according to specific service requirements while ensuring interoperability with existing infrastructure. The platform is designed to facilitate seamless service migration, accommodating both legacy and next-generation services.

The modular architecture of the ONS 15600 enhances its scalability. It allows for easy expansion by incorporating additional line cards or interface modules without requiring significant downtime. This modularity ensures that service providers can evolve their networks over time, responding to increasing bandwidth demands and new service offerings with ease.

Incorporating advanced technologies, the ONS 15600 employs Dense Wavelength Division Multiplexing (DWDM), significantly increasing the capacity of fiber networks by allowing multiple signals to be transmitted simultaneously over a single optical fiber. This capability helps to optimize fiber utilization and reduce operational costs. In addition, the platform supports Optical Transport Network (OTN) for improved error detection and correction, contributing to higher reliability and performance.

Another key characteristic of the ONS 15600 is its robust management capabilities. The platform can be managed through Cisco's Optical Networking Manager (ONM), providing a centralized interface for network configuration, monitoring, and troubleshooting. This enhances operational efficiency and minimizes downtime, allowing service providers to focus on delivering quality services to their customers.

The ONS 15600 also prioritizes security, offering various features like encryption and access control to safeguard sensitive data during transmission. With its combination of scalability, flexibility, and security, the Cisco ONS 15600 stands out as a reliable choice for organizations looking to enhance their optical networking capabilities while meeting the evolving demands of the digital landscape. Its commitment to quality and performance makes it a cornerstone of modern optical networks.
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