Adelphia Communications is deploying Internet Photonics' LightStack platforms to support video-on-demand (VOD) services. The network uses Internet Photonics' LightStack GSLAM to aggregate GbE streams from a bank of centralized VOD servers in the headend onto a 10G wavelength for transport across the network. In the hubs on the other end, a LightStack MX separates the GbE streams and sends them to the edge QAMs for delivery to the customer.
Adelphia will begin offering its VOD service by the end of November to digital cable customers in select locations in Southern California. Most of Adelphia's remaining Los Angeles service areas will introduce VOD over the next 12 months.
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- In March 2003, Internet Photonics introduced a new LightStack Gigabit Services Line Access Multiplexer (GSLAM) designed to aggregate, switch and multiplex multiple services (including managed services) in major cable headends or service provider POPs. The new GLSAM platform, which complements existing LightStack products for remote hub sites or premises, scales to handle 64 Gigabit Ethernet connections. The platform uses Internet Photonics' “SONET WrapAround�? capability in order to preserve existing traffic on a ring without interrupting the service. Optical Ethernet services are inserted onto the fiber using different wavelengths so as not to disrupt the existing traffic. The LightStack also features a VirtualWire capability by which eight GbE services, each with its own circuit-like sub-channel, are multiplexed onto a single 10 Gbps wavelength.
