Cisco Cisco 1 GHz GainStar Node Data Sheet
Data Sheet
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GainStar 1 GHz Node with 42/54 MHz Split
The 1 GHz GainStar Node (GSN) is specifically designed to serve in HFC networks. With
its modular design of Optics and RF amplifier electronics, the GSN can provide a full
complement of functions required by advanced networks.
The GSN provides excellent forward and reverse path performance combined with high reliability
and a user-friendly layout. All new GainStar products share common plug-in accessories and
perform to 1 GHz in the forward path. The GSN utilize GaAsFET technology optimized for superior
distortion performance.
The GSN provides two high-level RF output ports or four lower-level RF output ports in a strand or
pedestal mount configuration. The GSN can be field-upgradable from a forward only configuration
to a forward and reverse path configuration.
The optical receiver module with a built-in AGC covers a wide optical input range. The AGC
increases reliability and decreases nonlinear distortion. Standard plug-in attenuators can be used
to adjust gain and equalization. Reverse traffic can be combined and routed to an FP, DFB or
CWDM reverse optical transmitter.
Installation of the node is quick and easy. The GSN can be ordered as a complete node or as an
upgrade kit for new 1 GHz GainStar amplifiers.
Features
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Can be set up for 862 MHz or 1 GHz performance
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Modular design for ease of service and maintenance
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Dual high-level RF output ports
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Each high-level RF output port is configurable with an onboard signal director to create two
lower-level output ports
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AGC optical input range of
–4 to +2 dBm
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Standard plug-in attenuators are used to adjust the gain and equalization
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FP, DFB or CWDM transmitter as an available option
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Surge-resistant circuitry ensures resistance to high voltage transients (6kV)
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Thermal RF control minimizes gain movement over temperature
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10 A current capacity (steady state) and 15 A surge survivability
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Supports ROSA
network management system with an optional HMS transponder
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Outdoor housing is IP68 dustproof and watertight
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Strand and pedestal mount housing configurations are available
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All ports are PG11 or 5/8
with included adapter
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