Product Details

NDS3548B 8 in 1 CVBS to CATV QAM modulator

Product Overview

NDS3548B 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 or 8 SDI signals and 1 ASI input to DVB-C or ATSC-T RF out in the frequency range of 30~950MHz. It is also equipped with 2 ASI ports and IP port to output TS in MPTS or 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 or ATSC-T standard TVs or DVB-C or ATSC-T 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 8 AV (CVBS or SDI optional) input and 1 ASI Input for re-mux
l  H.264 and Mpeg2 video encoding
l  Support 720*576i and 720*480i SD signal
l  MPEG1 Audio Layer 2 & LC-AAC & HE-AAC (AC3 optional) audio encoding
l  Support VBR/CBR video encoding
l  Support Low Latency function
l  ATSC-T (DVB-T/DVB-C optional) RF output
l  Supports MPTS or 8 SPTS IP (UDP, RTP/RTSP) Output
l  Supports IP null packet filter
l  Excellent modulation quality
l  LCD / keyboard and web NMS operation
l  Update device through NMS port

Technical Specification

Input	8 CVBS (or HDSDI) input, BNC interface
	8 pairs unbalanced stereo audio input, BNC interface
	1 ASI input, BNC interface
Video	Resolution	PAL:720576i; NTSC: 720480i
	Encoding	MPEG-2; H.264
	Bit-rate	0.5~15Mbps for H.264 encoding 1~15Mbps for MPEG-2 encoding
	Rate Control	CBR/VBR
	Aspect Ratio	4:3, 16:9
	Advanced Pretreatment	De-interlacing, Noise Reduction, Sharpening
Audio	Encoding	MPEG1 Audio Layer 2; LC-AAC; HE-AAC; DD AC3 (Optional)
	Sampling rate	48KHz
	Bit-rate	32Kb/s~384Kb/s (LC-AAC or HE-AAC) 64Kb/s~384Kb/s (MPEG1 Audio Layer 2)
ATSC Modulator Section	Standard	ATSC A/53
	Constellation	8 VSB
	RF Output Level	26~-10dbm (81~97dbµV), 0.1db step
	MER	≥42dB
	RF frequency	30~960MHz, 1KHz step
DVB-T Modulator Section	Standard	EN300744
	FFT mode	2K, 8K
	Bandwidth	6M, 7M, 8M
	Constellation	QPSK, 16QAM, 64QAM
	Guard Interval	1/4, 1/8, 1/16, 1/32
	FEC	1/2, 2/3, 3/4, 5/6, 7/8
	MER	≥42Db
	RF frequency	30~960MHz, 1KHz step
	RF out	2*RF COFDM DVB-T out (2 carriers combined output); Double output bandwidth
	RF output level	-30~ -10dbm (77~97 dbµV), 0.1db step
DVB-C Modulator Section	Standard	J.83A, J.83B, J.83C
	MER	≥42dB
	RF frequency	30~950MHz, 1KHz step
	RF output level	-30.0~ 0.0 dbm (77~107 dbµV), 0.1db step
	Symbol rate	2.5 – 4.66 Msps, 5.0 - 8.0 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
Multiplexing	1 ASI input multiplexed with local 8 channels of TS
Stream Output	2*ASI output, BNC interface
	MPTS/8*SPTS over UDP or RTP/RTSP, 100Base-T Ethernet interface (UDP/RTP/RTSP unicast / multicast)
System Function	Low Latency achieved (Normal, mode 1 and mode 2 optional)
	LCD/keyboard and Web-based NMS operating
	System Language: English
	Ethernet software & hardware upgrade
Miscellaneous	Dimension (W× L× H)		482mm×410mm×44mm
	Approx weight		4kg
	Temperature		0~45℃(work), -20~80℃(Storage)
	Power		AC 100V-220V±10%, 50/60Hz
	Consumption		25W