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Bộ Điều Chế DVB-T Dexin NDS3548B

  • Mô tả
    AV/CVBS/SDI/ASI input, IP/ASI/RF output
  • Nhà sản xuất
    Dexin
  • Giá
    Vui lòng liên hệ
  • Số lượng
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Mô tả Sản phẩm
Bộ Điều Chế DVB-T Dexin NDS3548B chuyển tín hiệu AV/CVBS/SDI/ASI sang IP/ASI/RF chuẩn DVB-T/C/ATSC-T

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.

FEATURES

  • Support 8 AV (CVBS or SDI optional) input and 1 ASI Input for re-mux

  • H.264 and Mpeg2 video encoding

  • Support 720*576i and 720*480i SD signal

  • MPEG1 Audio Layer 2 & LC-AAC & HE-AAC (AC3 optional) audio encoding

  • Support VBR/CBR video encoding

  • Support Low Latency function

  • ATSC-T (DVB-T/DVB-C optional) RF output

  • Supports MPTS or 8 SPTS IP (UDP, RTP/RTSP) Output

  • Supports IP null packet filter

  • Excellent modulation quality

  • LCD / keyboard and web NMS operation

  • Update device through NMS port

NDS3548B_DVB-T_Encoder_Modulator

NDS3548B_DVB-T_Encoder_Modulator_1

Thông số kỹ thuật

Input

8 CVBS (or SDI) input, BNC interface

8 pairs unbalanced stereo audio input, BNC interface

1 ASI input, BNC interface

Video

Resolution

PAL:720*576i; NTSC: 720*480i

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
Ứng dụng

Bộ Điều Chế DVB-T Dexin NDS3548B 

  • Digital Headend
  • Analog Headend
  • Resort & Hotel & Building CATV System

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