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24 CVBS input Encoder Modulator
24 CVBS input Encoder Modulator
24 CVBS input Encoder Modulator

DAYTAI 24 CVBS input Encoder Modulator,(DT-EM-CVBS24) is a professional high integration device which includes encoding,

 multiplexing, scrambling and modulation. It supports 24 CVBS inputs with MPEG-2 video encoding and MPEG-1 Layer 2, DD



Model: DT-EM-CVBS24 Brand: DAYTAI
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Product Description

DAYTAI 24 CVBS input Encoder Modulator,(DT-EM-CVBS24) is a professional high integration device which includes encoding,

 multiplexing, scrambling and modulation. It supports 24 CVBS inputs with MPEG-2 video encoding and MPEG-1 Layer 2, DD

 AC3 (2.0) audio encoding and one DVB-C (ATSC optional) tuner input and maximum 512 IP input through Data1 (GE) port. It 

also supports DVB-C RF out with 16 non-adjacent carries or DVB-T/ATSC RF out with 8 non-adjacent carriers or ISDB-T RF out 

with 6 non-adjacent carriers and supports 16/8/6 MPTS as mirror of 16/8/6 carriers through Data2 (GE) output port. This full 

function device makes it ideal for small CATV head end system, and it’s a smart choice for hotel TV system, entertainment 

system in sports bar, hospital, apartment…


Features

Support CC (closed caption)

24 CVBS inputs with MPEG-2 Encoding

Support Logo, Caption, QR Code insertion

Lowest cost per channel, breakthrough price

1DVB-C(ATSC optional) tuner input for re-mux

Control via web management, and easy updates via web

Support MPEG-1 Layer 2, DD AC3 (2.0) audio encoding

1 ASI out as mirror of one of RF output carriers---Optional

Support 6 groups multiplexing/ISDB-T modulating---Optional

Support 16 groups multiplexing/Scrambling/DVB-C modulating

Support 8 groups multiplexing/DVB-T/ATSC modulating---Optional

Support 16 MPTS IP (DATA2 port only) output over UDP, RTP/RTSP

Support PID remapping/ accurate PCR adjusting/PSI/SI editing and inserting

Support 6 MPTS IP (DATA2 port only) output over UDP, RTP/RTSP-- ISDB-T RF out

Support 8 MPTS IP (DATA2 port only) output over UDP, RTP/RTSP-- DVB-T/ATSC RF out

Each carrier out channel process maximum 32 IP from DATA1 input port (UDP&RTP protocol)

Specification

Item

Specification

Input

24 CVBS inputs

1 DVB-C(ATSC optional) Tuner for re-mux, F type interface 512 IP input over UDP and RTP, DATA1, RJ45—DVB-C RF out

256 IP input over UDP and RTP, DATA1, RJ45—DVB-T/ATSC RF out

192 IP input over UDP and RTP, DATA1, RJ45—ISDB RF out

Video

Resolution

720×480_60i, 544×480_60i, 352×480_60i

352×240_60i,320×240_60i,176×240_60i, 176×120_60i



720×576_50i,704×576_50i,640×576_50i, 352×288_50i

320×288_50i, 176×288_50i, 176×144_50i


Encoding

MPEG-2


Bit-rate

0.5Mbps~8Mbps per channel


Rate Control

CBR/VBR


GOP Structure

IP, IBP, IBBP, IBBBP


Advanced

Pretreatment

De-interlacing, noise reduction

Audio

Encoding

MPEG-1 Layer 2, DD AC3 (2.0)


Sampling rate

48KHz


Resolution

24-bit


Bit-rate

64Kbps,128Kbps,192kbps,256kbps,320kbps,384kbps each channel

Multiplexing

Maximum PID

Remapping

180 input per channel


Function

PID remapping ( automatically or manually)



Accurate PCR adjusting



Generate PSI/ SI table automatically

Scrambling

Maximum

simulcrypt CA

4


Standard

ETR289, ETSI 101 197, ETSI 103 197


Connection

Local/remote connection

Modulation

DVB-C

QAM Channel

16 non-adjacent carriers output (maximum bandwidth



Standard

EN300 429/ITU-T J.83A/B



MER

≥40db



RF frequency

50~960MHz, 1KHz step



RF output level

-20~+10dbm (87~107 dbµV), 0.1db step



Symbol Rate

5.0Msps~7.0Msps, 1ksps stepping




J.83A

J.83B



Constellation

16/32/64/128/256QAM

64/256 QAM



Bandwidth

8M

6M


DVB-T

Standard

EN300744



FFT mode

2K,4K, 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

≥42 dB



RF frequency

50~960MHz, 1KHz step



RF out

8 non-adjacent carriers DVB-T out (maximum

bandwidth 192MHz)



RF output level

-20~ +10 dBm (77~97 dbµV), 0.1db step


ATSC

Standard

ATSC A/53



Bandwidth

6M



Constellation

8VSB



FEC

RS(208 188)+Trellis



MER

≥40dB



ACL

-55 dBc



RF frequency

50~960MHz, 1KHz step



RF out

8 non-adjacent carriers output (maximum bandwidth 192MHz)



RF output level

-20~+10dbm (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

6 non-adjacent carriers output (maximum bandwidth 192MHz)



RF output level

-20dBm~+10dBm, 0.1dB stepping

Stream output

1 ASI output as mirror of one of RF output carriers-Optional

16 MPTS output over UDP and RTP/RTSP as mirror of 16 DVB-C carriers,

8 MPTS output over UDP and RTP/RTSP as mirror of 8 DVB-T/ATSC carriers(Optional)

6 MPTS output over UDP and RTP/RTSP as mirror of 6 ISDB-T carriers(Optional) 1*1000M Base-T Ethernet interface

System function

Network management (WEB)


Chinese and English language


Ethernet software upgrade

Miscellaneous

Dimension (W×L×H)

482mm×440mm×44mm


Environment

0~45℃(work);-20~80℃Storage


Power requirements

AC 110V± 10%, 50/60Hz, AC 220 ± 10%, 50/60Hz


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