Cisco Prisma HDRx Reverse Optical Receiver Platform & Power Supply System 기술 참조

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페이지 5
78-741702-01 Rev C 
Prisma HDRx Reverse Path Receiver Platform Redundant Powering 
 
 
 
Prisma HDRx Reverse Path Receiver Platform 
Redundant Powering 
Overview 
Introduction 
This application note describes how the Prisma
 HDRx Reverse Receiver Platform 
should be installed to provide powering redundancy and cooling. 
Prisma HDRx Installation 
The Prisma HDRx platform consists of a 4 RU high chassis that can be mounted in a 
19- or 23-inch rack.  The unit can be mid-mounted for installation into a fiber 
management frame or front mounted for installation in a standard equipment rack.   
The Prisma HDRx chassis can accommodate up to 42 return path receivers, a 
network control module, and either a -48 V DC or 110/220 V AC power supply 
module.  Powering redundancy is provided by an external 1 RU rack-mount power 
supply that also contains a fan unit to provide additional cooling.