Product Details

NDS3548C digital modulator with 8 CVBS in

Product Overview

NDS3548C 8 in 1 Encoder/Modulator is an all-in-one device integrated encoding multiplexing and modulation functions in one standard 1U case. It can convert 8 CVBS signals and 1 ASI input to DVB-C RF out in the frequency range of 30~999MHz. It is also equipped with 2 ASI ports and IP port to output TS in MPTS & 8* SPTS.

The signals source could be from satellite receivers, closed-circuit television cameras and etc. its output signal is to be received by DVB-C standard TVs or DVB-C STBs.

The device can be used in public place such as metro, market hall, theatre, hotels, resorts, etc for advertising. It also can be used for monitoring, training and educating in company, schools, campuses, hospital.

Key Features

l Support 8CVBS,1 ASI Input

l H.264 and Mpeg2 video encoding

l MPEG1 Audio Layer 2, LC-AAC and HE-AAC (V2) audio encoding
l Support PSI/SI editing and inserting
l Supports VBR/CBR video encoding
l Supports ultra low bit rate encoding
l Applicable for one Seg/ISDB-T utilization
l 1*DVB-C RF output optional
l Excellent modulation quality
l Supports MPTS & 8 SPTS IP over UDP output
l Supports IP null packet filter
l LCD / keyboard and web NMS operation
l Update device through NMS port

Working Principle

Technical Specification

Input		8 CVBS, BNC interface
		8 pairs of unbalanced stereo audio, BNC interface
		1 ASI input, BNC interface
Video		Resolution	PAL:720576/352288/320240/320180/176144/ 160120/160*90-50Hz
			NTSC: 720480/352288/320240/320180/176144/ 160120/160*90-59.94Hz
		Encoding	MPEG-2 / H.264
		Bit-rate	0.25~6Mbps
		Rate Control	CBR/VBR
		Advanced Pretreatment	De-interlacing, Noise Reduction, Sharpening
Audio		Encoding	MPEG1 Audio Layer 2, LC-AAC, HE-AAC V2
		Sampling rate	48KHz
		Bit-rate	48Kb/s~384Kb/s for MPEG1 Audio Layer 2, LC-AAC 48Kb/s, 56Kb/s, 64Kb/s, 80Kb/s, 96Kb/s for HE-AAC V2
Multiplexing			1 ASI input multiplexed with local 8 channels of TS
Modulator Section		Standard	J.83A, J.83B, J.83C
		MER	≥42dB
		RF frequency	30~999MHz, 1KHz step
		RF output level	-30.0~ 10.0 dbm (77~97 dbµV), 0.1db step
		Symbol rate	5.0 - 9.0 Msps
		J.83A	Constellation		16/32/64/128/256QAM
			bandwidth		8M
		J.83B	Constellation		64QAM, 256QAM
			bandwidth		6M
		J.83C	Constellation		64QAM, 256QAM
			Bandwidth		6M
Stream output		2*ASI output, BNC interface
		MPTS & 8 SPTS over UDP, 10/100Base-T Ethernet interface (UDP unicast / multicast)
System function		LCD/keyboard operating, NMS supporting
		Ethernet software & hardware upgrade
Miscellaneous	Dimension (W× L× H)			482mm×455mm×44mm
	Approx weight			4kg
	Temperature			0~45℃(work), -20~80℃(Storage)
	Power			AC 100V-220V±10%, 50/60Hz
	Consumption			25W