Cisco Model 6944 and 6940 Node bdr Dig Rev 2 1 Mux System for Prisma II Ficha De Dados
Description
The Prisma II
“carrier-class” platform supports Scientific-Atlanta’s
revolutionary baseband digital reverse technology. The Prisma II
bdr
bdr
™
Digital Reverse 4:1 Multiplexing System provides a unique
approach for incorporating cost-effective network redundancy.
At the transmit end of the system, typically in a hub or remote
terminal, four analog reverse path signals are input to a two slot
wide Transmit Processor. The Transmit Processor converts each
signal to a baseband digital data stream and time division
multiplexes the four streams into a single data stream. The data
stream is split to enable routing for redundant optical transport.
One (non-redundant application) or two (redundant application)
Laser modules installed within the Transmit Processor frame
convert the high data rate stream to an optical signal for
transmission at either 1310 nm or 1550 nm wavelengths. 1550 nm ITU grid wavelengths are used for Dense
Wave Division Multiplexing (DWDM) applications.
terminal, four analog reverse path signals are input to a two slot
wide Transmit Processor. The Transmit Processor converts each
signal to a baseband digital data stream and time division
multiplexes the four streams into a single data stream. The data
stream is split to enable routing for redundant optical transport.
One (non-redundant application) or two (redundant application)
Laser modules installed within the Transmit Processor frame
convert the high data rate stream to an optical signal for
transmission at either 1310 nm or 1550 nm wavelengths. 1550 nm ITU grid wavelengths are used for Dense
Wave Division Multiplexing (DWDM) applications.
On the receive end, typically in a large hub or headend, one or two Receiver Modules located in the Receive
Processor frame receive the optical signal and perform conversion back to the baseband data stream. The
Receive Processor de-multiplexes the data stream and converts the four resultant data streams back to analog
reverse path signals for routing to termination equipment.
Processor frame receive the optical signal and perform conversion back to the baseband data stream. The
Receive Processor de-multiplexes the data stream and converts the four resultant data streams back to analog
reverse path signals for routing to termination equipment.
Features
•
High-performance baseband digital reverse technology with 12-bit encoding and advanced digital signal
processing enables transmission of analog video and high-order digital modulation signals (e.g.,16 QAM and
64 QAM)
64 QAM)
•
4:1 time division multiplexing reduces requirements for costly 1550 nm ITU transmitters from four to one
•
Long reach transmission capabilities eliminate need for optical amplifiers, reducing cost and space
requirements
•
Capable of sending 96 individual reverse bands over a single fiber
-leverages 4:1 time division multiplexing for quadrupling fiber capacity
-compatible with Scientific–Atlanta’s 24 wavelength DWDM system
-compatible with Scientific–Atlanta’s 24 wavelength DWDM system
•
Modular, cost-effective redundancy for reliable, carrier class performance
•
Simplified set-up reduces installation time and expertise requirements
•
Distance and temperature independent link performance simplifies engineering and maintenance
requirements
•
Space-saving, high-density Prisma II platform increases deployment cost efficiency
•
Extended temperature performance enables Remote Terminal applications
•
High-speed remote control and monitoring via Scientific-Atlanta’s Transmission Network Control System
(TNCS)
Optoelectronics
Prisma II
bdr
Digital Reverse
4:1 Multiplexing System