Features And Benefits - Cisco GS7000 Installation And Configuration Manual

The Model GS7000 Node can be upgraded to a Model GS7000 Hub Node in the field.
This is accomplished by the installation of optical amplification (EDFA) modules,
optical switching modules, and the Status Monitor/Local Control Module in the
node lid. The Model GS7000 Hub Node can then serve as a traditional node
feeding the local HFC plant and as an optical hub with the optical amplifiers. The
hub node with the amplifiers can service up to 32 nodes, each with dedicated
narrowcasting forward and return wavelengths, with as few as three fibers.
EDFAs are available in 17 dBm, 20 dBm, and 22 dBm for broadcasting. A 17 dBm or
21 dBm gain flattened EDFA version is available to fit any architecture for
requirements like DWDM narrowcasting. The optical switch module is used for
switching the input of an EDFA module from a primary signal to a backup or
secondary signal. The switch is monitored and controlled by the Status
Monitor/Local Control Module (SM/LCM) in the node. A specific model of the
SM/LCM is required for use in the optical hub. This SM/LCM model monitors and
controls several EDFA and optical switch parameters and functions.
The Model GS7000 Hub Node can migrate to a full optical hub by replacing the RF
amplifier section with an optical passive device tray which can accommodate
various optical passive devices. The optical passive device tray has the capacity of
housing four 1x8 narrowcast/broadcast overlay combiners with integrated
multiplexers and demultiplexers. A four-band mux/demux, a 1x4 splitter, and a 1x2
splitter are also available. These modular passive devices provide effortless
installation and removal, simple troubleshooting, and the capability to use off the
shelf fiber jumpers to interconnect active and passive modules. A fully deployed
Model GS7000 Optical Hub can be used to combine narrowcast/ broadcast up to 64
wavelengths feeding 32 nodes.

Features and Benefits

The Model GS7000 Optical Hub has the following features:

EDFA modules for optical amplification

Optical switch modules for redundancy

Flexible and scalable optical passive modules

Fiber management tray and tracks provides easy fiber routing and access to
fiber connections

Status monitor/Local control module for remote monitoring and control
(Transmission Network Control System [TNCS] or other compatible element
management system required)

Fiber entry ports on both ends of housing lid

AC power entry ports on both ends of the housing base

Primary and redundant power supplies with passive load sharing

Dual/Split AC powering
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Equipment Description
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