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OCR: Regional cable headend 622Mbits/sec OC-12 fiber Coaxial cable Internet Network management Operational Support. 27Mbits/sec downstream Systerns (OSS) 2Mbits/sec upstream Tap Home 2.4Gbits/sec OC-48 Distribution hub IP switch IP router Home backbone Fiber network IP Switch router ncde Cable modem 622 Mbits/sec termination 00-12 fiber System Remote centro! Tan server PSTN Local content IP telephery and application Servers Caching Business gateway servers Cable Architecture. Large cable providers typically have termination systems at distribution hubs, with centralized management and Operational Support Systems (OSS) servers.