NDS3542A（V2）4K Encoder Modulator__DEXIN DIGITAL TECHNOLOGY CORP. LTD.

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NDS3542A（V2）4K Encoder Modulator

NDS3542A（V2）4K Encoder Modulator

Writer：Dexin Digital Technology(Chengdu)Co.,Ltd Addtime:27/Aug/2025

Product Overview

NDS3542A V2 4K encoder modulator is DEXIN’s new breakthrough all-in-one devices which integrate encoding (H.264 /H.265) and modulating to convert V/A signals into Digital RF output. It is equipped with 4 HDMI channels input and 1 ASI input(optional) and output via 2 ASI ports(optional) and 1 DATA (4*SPTS or 2 or 4 MPTS--as per carrier numbers)output over UDP, RTP/RTSP. The latency has been greatly reduced to achieve an extremely low value from the encoding progress to the decoding terminals.

It adopts an inner drawer-type structural design which greatly facilitates the change of encoding modules as needed. The signals source could be from satellite receivers, closed-circuit television cameras, Blue-ray players, and antenna etc.

Key Features

*HDMI input with H.265/h.264 video（4K encoding for H.265 only）
*DVB-C/DVB-T/ISDB-T/ATSC RF OUT for order option
*IP output over UDP, RTP/RTSP from the 100/1000M self-adaptive data port
*Support AC3 Pass-through
*Support OSD (logo/QR Code) insertion，logo in PPT form is available
*Support CC (Closed Caption) /Teletext (CC is not available for H.265 at present)
*Excellent modulation quality
*LCN support (Logical Channel Number)
*LCD Screen for easy management

Specifications

Input	2/4 HDMI in. 2/4 HDMI loop out 1 ASI in for re-mux
Video	Resolution	38402160_60/50P(H.265 only), 19201080_60/59.94/50P, 1280*720_60/59.94/50P,
	Encoding	HEVC/ H.265 , MPEG 4 AVC/H.264
	Bit-rate	2Mbps~20Mbps
	Rate Control	CBR/VBR
	Chroma	Input:4:4:4/4:2:2; output:4:2:0
	GOP Structure	IBBP, IPPP
Audio	Encoding	MPEG-1 Layer 2, LC-AAC, HE-AAC and AC3 Pass through
	Sampling rate	32KHz,44.1KHz,48KHz
	MPEG-1 Layer 2 /LC-AAC Bit-rate	48Kbps~384Kbps
	HE-AAC Bit-rate	24 Kbps~128 Kbps
	HE-AAC V2 Bit-rate	18 Kbps~56 Kbps
Multiplexing	Maximum PID Remapping	255 input per channel
	Function	PID remapping ( automatically or manually)
		Accurate PCR adjusting
		Generate PSI/ SI table automatically
Modulation	DVB-C	QAM Channel		4*DVB-C carriers
		Standard		EN300 429/ITU-T J.83A/B
		MER		≥40db
		RF frequency		50~960MHz, 1KHz step
		RF output level		-20~+3dbm, 0.1db step
		Symbol Rate		3.000~9.000Msps adjustable
		Constellation		J.83A	J.83B	J.83C
				16/32/64/128/256QAM	64/256QAM	64/ 256QAM
		Bandwidth		8M	6M	6M
	DVB-T	Standard		EN300744
		Transmission Mode		2K,4K, 8K
		Bandwidth		6M, 7M, 8M
		Constellation		QPSK, 16QAM, 64QAM
		Guard Interval		1/32, 1/16, 1/8, 1/4
		MER		≥42 dB
		RF frequency		50~960MHz, 1KHz step
		RF out		4*DVB-T carriers
		RFoutput level		-28~ -3 dBm, 0.1db step
	ATSC	Standard		ATSC A/53
		Bandwidth		6M
		Constellation		8VSB
		MER		≥40dB
		RF frequency		50~960MHz, 1KHz step
		RF out		4*ATSC carriers
		RF output level		-20~+3dbm(for all carriers), 0.5db stepping
	ISDB-T	Standard		ARIB STD-B31
		Bandwidth		6M
		Constellation		QPSK, 16QAM, 64QAM
		Guard Interval		1/32, 1/16, 1/8, 1/4
		Transmission Mode		2K, 4K, 8K
		Code rate		1/2, 2/3, 3/4, 5/6, 7/8
		MER		≥40dB
		RF frequency		50~960MHz, 1KHz step
		RF out		2*ISDBT carriers
		RF output level		-20dBm~+3dBm, 0.1dB stepping
Stream output	2 ASI out(BNC type, same one mirror out TS as one of 4/2 MPTS outputs and 4 SPTS outputs) DVB-C/DVB-T/ATSC: IP (4 MPTS & 4 SPTS) out over UDP, RTP/RTSP ISDBT: IP (2 MPTS & 4 SPTS) out over UDP,RTP/RTSP
System function	Network management(WEB)
	Chinese and English language
	Ethernet software upgrade
Miscellaneous	Dimension(W×L×H)		482mm×328mm×44mm
	Environment		0~45℃(work)；-20~80℃（Storage）
	Power requirements		AC 110V± 10%, 50/60Hz, AC 220 ± 10%, 50/60Hz

Principle Chart

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