Edr 85 System Overview; Features - Cisco Prisma II EDR Installation Manual

EDR 85 System Overview

The Cisco EDR 85 System supports digital transmission of reverse path signals over
a fiber optic link from the node to the hub or headend. The system includes a
selection of transmitter modules, of which the Prisma II EDR Transmitter is one
example, and a companion Cisco Prisma EDR PRX85 Receiver module.
In its included Integrated Transmitter Host Module, the Prisma II EDR Transmitter
has a double-wide high density (HD) form factor and can mount directly into two
adjacent application slots in a Prisma II XD chassis. The EDR 85 System receiver
module has a single-wide HD form factor and can mount directly into a single
application slot in a Prisma II XD chassis. An accessory Prisma II Host Module is
available to adapt a pair of transmitter or receiver modules for mounting in a
standard (full-height) Prisma II chassis.
Both transmitter and receiver modules use Small Form Factor Pluggable (SFP)
optical pluggable modules (OPMs) for enhanced flexibility. The EDR 85 System
operates over the 5-85 MHz range and supports all standard reverse frequency
bandwidths at 40, 42, 55, 65, and 85 MHz.
Note: Although the receiver module supports both 1:1 and 2:1 multiplexing
configurations, the Prisma II EDR Transmitter supports 2:1 multiplexing only.
Accordingly, the instructions in this document are confined to 2:1 multiplexing
configurations.

Features

The EDR 85 2:1 Multiplexing System has the following features:
High-performance Digital Return technology

- 12-bit encoding enables transmission of analog video in the reverse band
- High-order digital modulation signals (for example, 16 QAM, 64 QAM, and
256 QAM)
Multiple operating modes in the EDR receiver support EDR transmitter and

legacy integrated bdr node transmitter
Optical pluggable modules (OPMs) enable flexible inventory management

Long-reach transmission capabilities eliminate the need for optical amplifiers,

reducing cost and space requirements
Capable of sending 2:1 multiplexed 5-85 MHz reverse signals over a single fiber

- Compatible with Cisco's 40 wavelength Dense Wave Division Multiplexing
(DWDM) system
OL-32414-01

EDR 85 System Overview

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