QAM Modulator for Cable TV (CATV) Digital Headend: QAM Modulator has a primary ASI input and a extend ASI input

QAM Modulator for Cable TV (CATV) Digital Headend:

Overview

E-4101 QAM modulator is one of the main equipment of cable digital TV headend, receiving data from the encoder, multiplexer, DVB gateway, scrambler, video server and other equipment’s  DVB transport stream, and make RS codes, convolution interleaving and QAM modulation channel processing, RF output. Use a new generation of integrated circuits BCM3034, low-power, high index.

Features

. Meet DVB standard channel coding;

. Support full range of variable Symbol Rate and QAM mode;

 8M cache, anti-burst stream;

. Data filling function;

. Support IP data injection;

. Configurable PID filter, re-mapping, PSI, SI information synchronization update;

. Support NIT table inserts;

. Real-time transport stream monitoring;

. PCR correction;

. Fixed or variable frequency output;

. Provide ASI and DS3 (Optional) Enter interface;

.Provide RF output monitoring port (-20dB);

. Local and remote control;

. LCD display in Chinese and English, easy and flexible to operate;

. High reliability design, stable operation.

Back panel structure:

Technical Specification:

Modulation Mode		16,32,64,128,256,1024QAM
symbol rate		1~7Mbaud/s
Error-correcting codes		RScode188/204
Input data code rate		1.5~51Mbps
Channel Data Rate		20~56Mbps
MER		>33dB
BER		0
Input interface	ASI	DVB standard
	RF Frequency	47~870MHz (agility  or fixed output)
	Output LEV	>=115dBmV
	Output LEV adjustable range	0-16 dB(0.5 dB stepping)
	Impedance	75Ω
	Output Return Loss	>=12 dB
General Features	Size	44mm´482´410mm
	Environment	0 ~ 45(Operating);-20 ~ 80(Storage)
	Power	220VAC±10%,50Hz,25W

Network Management:

 

P1: DVB-C Modulator-parameter setting

 

P2: DVB-C Modulator-edit NIT

 

P3: DVB-C Modulator-PID passthrough

 

P4: DVB-C Modulator-PID filter

 

P5: DVB-C Modulator-edit PSI

 

P6: DVB-C Modulator-monitor

QAM Modulator