Overview; About This Manual; Product Description - Baudcom BD-5800H Operating Manual

1. Overview

1.1 About This Manual

This instruction manual is a complete guide to install and operate the (1RU)
1550nm external modulated optical transmitter. Please read the entire manual before
beginning installation.
This manual applies to the external modulated optical transmitter.
• Chapter 1 gives general information about the 1550nm external modulated optical
transmitter.
• Chapter 2 describes the complete technical specifications of the equipment.
• Chapter 3 describes the front/rear panel interfaces and menu system.
• Chapter 4 tells you how to install the external modulated optical transmitter.
• Chapter 5 tells you the communication setting of the equipment.
• Chapter 6 describes maintenance and what to do in the event of problems.

1.2 Product Description

This optical transmitter is a 1550nm DFB laser external modulated transmitter. It
is specially developed for the CATV signal that satisfies HFC network, and the
long-distance transmission of cable phone and cable data.
Working principle
It has 7 function modules: RF control, DFB laser, optical modulator, SBS control,
CSO control, communication/display control and power supply.
Automatic gain control circuit (AGC) or manual gain control circuit (MGC)
amplifies the RF signal. AGC or MGC control makes the optical modulator maintain a
suitable input level. Use the detected RF root-meansquare(RMS)-total power to
calculate the optical modulation index(OMI).
In general we recommend using the AGC function, and special users can use the
MGC function to adjust the CNR/CSO/CTB performance indexes.
The core of transmitter is the optical modulator. The 1550nm signal input the
optical modulator, make the laser intensity changed follow the external RF signal
voltage, and then generate the AM optical signal.
Website: www.baudcom.com.cn Tel：+86-21-37709251 Email: info@baudcom.com.cn
1550nm external modulated optical transmitter operating manual
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