Cisco Prisma II Hybrid Amplifier Informations techniques télécharger pdf (Page 75)

S-QAM FS TX Operation

 The RF input signal is amplified before being converted to an optical

signal using a high-performance, isolated distributed feedback (DFB)

laser.

 The incoming RF signal is also routed through a coupler to an RF detector

circuit. The RF detector produces a DC voltage proportional to incident RF

power that is used to monitor the input power level.

Voltage

Controlled

Attenuator

Predistortion

DFB

Laser

Front Panel

Test Point

Microprocessor

Optical Output

Input

ICIM

Front Panel

(optional module )

LCI User

Interface

Connector

(on chassis)

TP352

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Cisco Prisma II Hybrid Amplifier Informations techniques Page 75