Cisco GS7000 Installation And Operation Manual page 25

Equipment Description
The 1.2 GHz GS7000 Node receives forward optical inputs, converts the input to an
electrical radio frequency (RF) signal, and outputs the RF signals at up to six ports.
The forward bandwidth is from 54 MHz (or 86, 102, 258 MHz) to 1218 MHz. The
lower edge of the passband is primarily determined by the diplex filter and the
reverse amplifier assembly. Diplex filter choices are 54 MHz, 86 MHz, 102 MHz, and
258 MHz.
The forward path of the 1.2 GHz GS7000 Node can be deployed with a broadcast
1310/1550 nm optical receiver with common services distributed to either four
output ports (all high level) or six output ports (two high level and four lower level).
The forward path can also be segmented by using one optical receiver that feeds all
output ports, two independent optical receivers that each feed half of the node's
output ports (left/right segmentation) or four independent optical receivers that
feed four independent forward paths. Forward optical path redundancy is
supported via the use of optional local control module. The type of forward
segmentation and/or redundancy is determined by the type of RF amplifier
assembly and Forward Configuration Module installed in the node.
The 1.2 GHz GS7000 Node's reverse path is equally flexible. Reverse traffic can be
segmented or combined and routed to up to four DFB reverse optical transmitters, or
up to four Enhanced Digital Return reverse optical transmitters as part of our EDR
system. Redundant (back-up) transmitters may be utilized. In addition, an auxiliary
input path is provided for reverse signal injection (5 - 210 MHz). Reverse
segmentation and/or redundancy are determined by the type of Reverse
Configuration Module installed in the node.
The 1.2 GHz GS7000 Node accepts Optical Transmitter Modules based on the
existing 694x/GainMaker optical transmitters. Reverse optical transmitters can be
installed to transmit data, video, or both. Reverse bandwidth is determined by the
diplex filter and the reverse amplifier assembly. Diplex filter choices are 42/54 MHz,
65/86 MHz, 85/102 MHz, and 204/258 MHz.
The 1.2 GHz GS7000 Node utilizes the transmitter and receiver module covers that
have been designed to allow fiber pigtails storage within them, providing improved
fiber management within the node.
Up to four optical receivers and up to four analog or two digital transmitters can be
installed in the 1.2 GHz GS7000 Node.
45 - 90 V AC input power is converted to +24.5, +8.5, -6.0, and +5.5 V DC by an
internal power supply to power the 1.2 GHz GS7000 Node.
Hub Node
The GS7000 Hub Node performs the same functions as the GS7000 Node with the
added benefit of also providing optical gain and optical switching capability. The
hub node allows you to push fiber deeper into your network while taking advantage
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