Cisco Model GS7000 4-Port Node 1 GHz with 42 54 Split Data Sheet
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The Cisco
GS7000 4-Way Segmentable Node is the latest generation 1 GHz optical node
platform. This platform allows independent segmentation and redundancy for both the forward
and reverse paths in a reliable, cost-effective package.
and reverse paths in a reliable, cost-effective package.
The forward path of the GS7000 4-Way Segmentable Node launch amplifier can be initially deployed in
non-segmented mode with a single broadcast optical receiver distributing common RF services 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 fully segmented by using four independent optical receivers that each feed their own output
ports, or left/right segmented by using two independent optical receivers that each feed half of the node’s
output ports. Forward path optical redundancy is also supported via the use of optional redundant optical
receivers. The type of forward path segmentation and/or redundancy is determined by the type of
Forward Configuration Module installed.
The GS7000 Node’s reverse path is equally flexible. Reverse traffic can be segmented or combined and
routed to a maximum of 4 FP, DFB, CWDM, or DWDM reverse optical transmitters, or to advanced
Baseband Digital Reverse optical transmitters as part of the bdr system. Reverse path optical
redundancy is supported via the use of optional redundant optical transmitters. The type of reverse path
segmentation and/or redundancy is determined by the type of Reverse Configuration Module installed. A
Reverse Input Port is also provided for high frequency (5 - 210 MHz) reverse signal injection.
All optical transmitters and optical receivers used in the GS7000 have new high-profile module covers
that include both a self-contained fiber pigtail storage area and an integrated pull ring for easier module
installation and removal. Additionally, the GS7000 optical receiver is a new low-current design that
dissipates less power and incorporates a two-state interstage RF attenuator switch for performance
optimization.
non-segmented mode with a single broadcast optical receiver distributing common RF services 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 fully segmented by using four independent optical receivers that each feed their own output
ports, or left/right segmented by using two independent optical receivers that each feed half of the node’s
output ports. Forward path optical redundancy is also supported via the use of optional redundant optical
receivers. The type of forward path segmentation and/or redundancy is determined by the type of
Forward Configuration Module installed.
The GS7000 Node’s reverse path is equally flexible. Reverse traffic can be segmented or combined and
routed to a maximum of 4 FP, DFB, CWDM, or DWDM reverse optical transmitters, or to advanced
Baseband Digital Reverse optical transmitters as part of the bdr system. Reverse path optical
redundancy is supported via the use of optional redundant optical transmitters. The type of reverse path
segmentation and/or redundancy is determined by the type of Reverse Configuration Module installed. A
Reverse Input Port is also provided for high frequency (5 - 210 MHz) reverse signal injection.
All optical transmitters and optical receivers used in the GS7000 have new high-profile module covers
that include both a self-contained fiber pigtail storage area and an integrated pull ring for easier module
installation and removal. Additionally, the GS7000 optical receiver is a new low-current design that
dissipates less power and incorporates a two-state interstage RF attenuator switch for performance
optimization.
Figure 1. GS7000 4-Way Segmentable Node with 65/86 MHz Split
Features
Six port 1 GHz RF platform
Uses GainMaker
type GaAs FET gain stages
Uses standard GainMaker style accessories (i.e., attenuator pads, equalizers, diplexers, and crowbar)
Field accessible plug-in Forward Interstage Linear Equalizers, Forward / Reverse Configuration
Modules, and Signal Directors
3-state reverse switch (on/off/-6 dB) allows each reverse input to be isolated for noise and ingress
troubleshooting (status monitoring or local control module required)
Auxiliary reverse injection (5 - 210 MHz) configurable on up to 2 ports
Positions for up to 4 optical receivers and 4 optical transmitters in housing lid
Optional low-cost Local Control Module may be installed in conjunction with a Redundant Forward
Configuration Module to allow optical path redundancy when no status monitor is required
Optional Status Monitoring (ROSA
/TNCS or other compatible element management system required)
Cisco GS7000 4-Way Segmentable Node
1 GHz with 65/86 MHz Split
1 GHz with 65/86 MHz Split