The AMN1220 GST-A/B is a hardened Optical Network Terminal (ONT) designed to be deployed on the exterior of a home or business. The GST terminates a single fiber from the central office or headend, and supports multiple combinations of data, voice, and video services to the end user. The GST-A supplies an RF video interface via an F connector, while the GST-B does not have an RF video interface. A battery backup unit can be equipped to meet lifeline voice requirements.
The data port on the AMN1220 GST-A and B operates at 10BASE-T, 100BASE-TX, or 1000BASE-T rates. The 10BASE-T and 100BASE-TX rates are scaled for typical residential use. For small businesses, the Gigabit Ethernet capability provides robust bandwidth for large file transfer and multi-user applications. For all applications, the Gigabit Ethernet rate offers future-proofing against increased demand for higher speeds for applications such as High Definition IPTV.
IP video is supported on both models, and RF video on GST-A. Some service providers use both: RF video for "basic cable" service and IP video for VoD (Video on Demand) and PPV (Pay per View) applications that involve significant interactivity between the user and the headend. The AMN1220 GST-A supports "legacy" triple play, in which all services arrive at the residence via the single fiber network infrastructure, but are converted to their legacy delivery media within the GST. Thus, existing house wiring is used to provide video over coaxial cable, POTS (Plain Old Telephone Service) voice over Category 3 or lower twisted pair cabling and data over Category 5 cabling.
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