Cisco Cisco Prisma II ICIM Guia Da Instalação
78-748704-01 Rev C
Introduction
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Prisma II bdr 2:1 Dual Receive Processor Overview,
Continued
Prisma II bdr Digital Reverse 2:1 Multiplexing System
The Prisma II platform supports Cisco’s Baseband Digital Reverse technology. The
Prisma II bdr Digital Reverse 2:1 Multiplexing System includes a unique approach
for incorporating network redundancy.
On the transmit end of the system, typically in a hub or remote terminal, two 5 to 42
On the transmit end of the system, typically in a hub or remote terminal, two 5 to 42
MHz analog reverse path signals are output of a transmit processor. The transmit
processor converts each signal to a baseband digital data stream and time division
multiplexes the two streams into a single data stream.
On the receive end of the system, typically in a large hub or headend, each of two
On the receive end of the system, typically in a large hub or headend, each of two
independent Prisma II bdr Optical Receivers located in the Prisma II bdr 2:1 Dual
Receive Processor receives the optical signals and convert them back to the baseband
data stream. The receive processor demultiplexes each data stream into two RF
signals resulting in up to four total RF outputs.
The Prisma II bdr 2:1 Dual Receive Processor can be controlled by an ICIM, the LCI
The Prisma II bdr 2:1 Dual Receive Processor can be controlled by an ICIM, the LCI
software, or TNCS software. The Prisma II bdr Dual Receive Processor will only
operate with a Prisma II bdr 2:1 Dual or 2:1 Redundant Transmit Processor or the
Model 6940/6944 bdr 2:1 Enhanced Node Digital Module. It is not compatible with
Prisma II bdr 4:1 Redundant Transmit Processors or previous Prisma bdr products.
Optical Output
Optical input connectors for the processor are SC/APC.
WARNING:
Avoid damage to your eyes! Do not look into any optical connector while the
system is active. Even if the unit is off, there may still be hazardous optical
levels present.