Cisco Model 6944 Four Port Optoelectronic Node 870 MHz with 42 54 MHz Split 数据表
Description
The Model 6944 Node is Scientific-Atlanta’s latest generation
870 MHz optical node platform. This platform allows
independent segmentation or redundancy for both the forward
and reverse paths in a reliable, cost-effective package.
The forward path of the Model 6944 Node can be initially
deployed as a broadcast 1310/1550 nm optical receiver with
common services distributed to either four outputs (all high
level) or six outputs (two high level and four lower level).
Forward segmentation can be implemented via use of
additional optical receivers, to provide unique broadcast
services at each of the high level ports.
The Model 6944 Node’s reverse path is equally flexible.
Reverse traffic can be combined and routed to FP or DFB
reverse transmitters, and redundant (back-up) transmitters
may also be utilized. The platform provides for reverse
segmentation through the addition of transmitters. Up to four
transmitters - one per reverse input port – can be configured
using the eight position optical interface board. Where fiber counts are limited, the six-position optical interface
module allows for space to add advanced Baseband Digital Reverse, reverse path segmentation technology
using Scientific-Atlanta’s bdr™system. The six-position optical interface board has two transmitter mounting
positions.
If the reverse path is not segmented, one position is used for the primary reverse transmitter and the other for an
optional redundant transmitter. For dual reverse segmentation, two transmitters are installed, each dedicated to
reverse traffic from a pair of station reverse input ports.
The Model 6944 Node RF launch amplifier module is common to all configurations from the most basic to a fully
featured, forward and reverse segmented node. The forward path of the RF launch amplifier includes four high
level distribution outputs. Utilizing a plug-in splitter, the outputs for ports one and six can be split and routed to
ports two and five respectively, thereby providing six output ports, two high level and four lower level. The
reverse path in the RF launch amplifier module is passive. Each of the four reverse path inputs includes a plug-in
location for an optional three state reverse switch.
There are three forward configuration modules for the Model 6944 Node, each specific to the level of forward path
segmentation desired. When the forward path of the node is not segmented, a standard forward configuration
module is utilized, and the four station output ports are fed from a common receiver. A dual forward segmentation
module is utilized when two receivers are installed - with each providing unique broadcast services to a pair of
station output ports. A quad forward segmentation module is utilized when four receivers are installed – with each
providing unique broadcast services to one of four dedicated station output ports.
870 MHz optical node platform. This platform allows
independent segmentation or redundancy for both the forward
and reverse paths in a reliable, cost-effective package.
The forward path of the Model 6944 Node can be initially
deployed as a broadcast 1310/1550 nm optical receiver with
common services distributed to either four outputs (all high
level) or six outputs (two high level and four lower level).
Forward segmentation can be implemented via use of
additional optical receivers, to provide unique broadcast
services at each of the high level ports.
The Model 6944 Node’s reverse path is equally flexible.
Reverse traffic can be combined and routed to FP or DFB
reverse transmitters, and redundant (back-up) transmitters
may also be utilized. The platform provides for reverse
segmentation through the addition of transmitters. Up to four
transmitters - one per reverse input port – can be configured
using the eight position optical interface board. Where fiber counts are limited, the six-position optical interface
module allows for space to add advanced Baseband Digital Reverse, reverse path segmentation technology
using Scientific-Atlanta’s bdr™system. The six-position optical interface board has two transmitter mounting
positions.
If the reverse path is not segmented, one position is used for the primary reverse transmitter and the other for an
optional redundant transmitter. For dual reverse segmentation, two transmitters are installed, each dedicated to
reverse traffic from a pair of station reverse input ports.
The Model 6944 Node RF launch amplifier module is common to all configurations from the most basic to a fully
featured, forward and reverse segmented node. The forward path of the RF launch amplifier includes four high
level distribution outputs. Utilizing a plug-in splitter, the outputs for ports one and six can be split and routed to
ports two and five respectively, thereby providing six output ports, two high level and four lower level. The
reverse path in the RF launch amplifier module is passive. Each of the four reverse path inputs includes a plug-in
location for an optional three state reverse switch.
There are three forward configuration modules for the Model 6944 Node, each specific to the level of forward path
segmentation desired. When the forward path of the node is not segmented, a standard forward configuration
module is utilized, and the four station output ports are fed from a common receiver. A dual forward segmentation
module is utilized when two receivers are installed - with each providing unique broadcast services to a pair of
station output ports. A quad forward segmentation module is utilized when four receivers are installed – with each
providing unique broadcast services to one of four dedicated station output ports.
Optoelectronics
Model 6944 Four Port
Optoelectronic Node
870 MHz with 42/54 MHz Split
Optoelectronic Node
870 MHz with 42/54 MHz Split