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Updated:October 14, 2008
Document ID:1474264439999215
Bias-Free Language
The documentation set for this product strives to use bias-free language. For the purposes of this documentation set, bias-free is defined as language that does not imply discrimination based on age, disability, gender, racial identity, ethnic identity, sexual orientation, socioeconomic status, and intersectionality. Exceptions may be present in the documentation due to language that is hardcoded in the user interfaces of the product software, language used based on RFP documentation, or language that is used by a referenced third-party product. Learn more about how Cisco is using Inclusive Language.
Product Overview
The optical Protection Switch Module (PSM) for the Cisco
® ONS 15454 Multiservice Transport Platform (MSTP) provides protection against a fiber cut by optically splitting an optical signal over two diverse paths. The PSM (Figure 1) allows three types of protection: single-channel or channel protection (Figure 2); amplified or non-amplified Multiplex Section Protection across the composite C- or L-band (Figure 3); and amplified or non-amplified Path Section Protection across the composite C- or L-band (Figure 4).
Figure 1. Cisco ONS 15454 MSTP Protection Switch Module
• Flexible protection options: The PSM is an addition to the extensive array of protection mechanisms on the Cisco ONS 15454 MSTP, which gives customers the flexibility to choose the appropriate level of protection based on cost and their requirements for network resiliency.
• Cost effectiveness: PSM-based protection is one of the most cost-effective means to provide service resiliency in an optical network. The PMS gives customers an affordable entry-level solution.
• Fast switchover performance: The PSM completes the service switchover in less than 50 milliseconds, which helps ensure minimal disruption to data traffic.
• Easy provisioning and management: The PSM fully integrates with the Cisco ONS 15454 MSTP through Cisco Transport Controller.
• Support for amplified networks: The PSM also works with the Cisco ONS 15454 MSTP amplifiers to extend the reach of the network.
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