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Zakładka z wyszukiwarką danych komponentów |
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Zakładka z wyszukiwarką danych komponentów |
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PRS80G Arkusz danych(PDF) 2 Page - Applied Micro Circuits Corporation |
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PRS80G Arkusz danych(HTML) 2 Page - Applied Micro Circuits Corporation |
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2 / 4 page  Product Overview Product Brief PRS 80G, PRS C48X, and PRS C192X Switch Fabric PB PRS / v0.6 / 2-10-2006 2 Empowering Intelligent Networks PRS 80G Switch with PRS C48X and PRS C192X Fabric Interfaces 4 x OC-12 GE GE 4 x GE 4 x OC-12 OC-48 Fibre 10G / OC-192 PRS C48X PRS C192X PRS C192X NP / TM NP / TM NP / TM NP / TM NP / TM NP / TM Protection Switch Channel Active Switch PRS 80G (one or two per plane) Line Card Line Card Line Card CSIX / PL3 CSIX / PL3 CSIX 5 Gbps 20 Gbps 20 Gbps Backplane 2x3.2 Gbps 8x3.2 Gbps 2x3.2 Gbps 8x3.2 Gbps 8x3.2 Gbps 8x3.2 Gbps Serial Links at 3.2 Gbps (with 8b/10b coding) (nP37xx) (nP37xx) (nP37xx) (nP37xx) Support of Real-Time Traffic (TDM) The PRS 80G addresses the technical challenges (latency, jitter) of merging real-time traffic with other traffic types over a single communication infrastructure: • Deterministic low latency, typically a few microseconds transit delay in worst case conditions (100% traffic load) for high priority traffic. • Guaranteed precedence of time-sensitive traffic (for example, TDM) over other traffic types, using fully preemptive traffic priority. Full Bandwidth Multicast The PRS 80G addresses the growing needs of audio and video distribution applications, thanks to its powerful multicast and broadcast mechanisms: cell replication at sending, with cells being scheduled at different times for different output ports. Multiple QoS Options The PRS 80G can be suited to the application specific QoS requirements thanks to multiple traffic scheduling options: • Strict traffic priority scheduling • Configurable credit table (weighted round-robin) to guarantee bandwidth to lower priority traffic • Credit Table with fully preemptive highest traffic priority (exhaustive scheduling) Switch Board Redundancy for High Availability The PRS 80G can be designed to operate in redundant switch board configurations that address the high-availability requirements of five-nine applications. On the payload boards, the PRS C48X and PRS C192X Fabric Interface chips provide a redundant path with the switch boards. The PRS 80G supports three redundancy modes: hot standby mode (with automatic takeover of the traffic of the failing active board), traffic load sharing between the two switch boards (with automatic take over of the traffic of the failing board), and maintenance switchover between switch boards (without any service interruption and no cell loss). Control Software The control processor of the switch board runs the AMCC Secondary Switch Controller software (SSC), in charge of configuring, monitoring, and controlling the switch board operations. The SSC initializes the cell switch device, performs diagnostics, monitors device status, accumulates statistics, and in a redundant switch configuration, communicates with its peer to perform system recovery in case of component failure. In addition, the AMCC Switch Integrated Control Console (SWICC) tool, a PC software application, enables access to any addressable resources in the switch device to initiate or monitor any operational or test function (for example, traffic generation, digital eye, sense and operate of any bit, loop back, and so on). The SWICC can be used locally, on the customer premises, or for remote support. |
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