Broadcast 8 MPEG2 Digital Video Modulator

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Product Profile                   

The EMI***4 is a new generation and highly integrated SD encoder and QAM transmodulator combining MPEG*2 SD encoding, QAM RF reception, transport stream processing and QAM modulation in a 1RU chassis. Its ideal for broadcasters, cable network operators and media providers looking to reduce equipment costs and lower total power consumptions for both digital television service contribution and distrubution. 

 
The EMI***4  features versatile functions, high density and superior performance, provides up to eight channels of MEPG*2 standard definition(SD) encoding, QAM RF demodulation, ASI-based transport stream , trasport stream multiplexing/re-multiplexing/pass-through, PSI/SI processing, two QAM modulation outputs. All of these feeds incoming from local analog PAL/NTSC video&Audio media sources, local ASI transport streams and remote QAM RF signals could be processing into two desirable transport streams and finally distribute to cable network after QAM modulation.

 
As a comprehensive contribution and distribution equipment, the Web browser and SNMP management are also be introduced for local and remote monitoring and control, this can significantly reduce management time and save operating expense.



Key Features                    

*-Up to eight channels of MPEG*2 SD video and MPEG*1 Layer 2 audio encoding

*-High picture quality in ultra low bit rate to reduce network overheads or costs

*-Support encoding rate range from 1Mbps to 7Mbps

*-Support channel coding multiplexing simultaneously to two QAM Channels output

*-Support VBR/CBR video encoding

*-Transport stream multiplexing, remultiplexing sand pass through via ASI,DVB-C RF

*-Support PID filtering, pass-through, PCR auto-correction

*-PAT, PMT and SDT insertion

*-Up to Dual QAM adjacent-channel outputs 

*-Wide range of modulation output bitrate from *5.5Mbps to *1.6Mbps per QAM channel

*-QAM constellation: *6/*2/*4/**8/**6QAM

*-ITU-T J.*3 Annex A/B/C compliant, 6MHz or 8MHz bandwidth

*-Self-adaptive filter circuit design ensures outstanding out-of-band rejection

*-Web browser GUI and SNMP management for local and remote management 

*-Local and remote firmware upgrades

*-Low power consumptions, Tilted more than *5 degrees of intelligence to turn it off



Technical Specifications   

                                               
Analog Video/Audio Input     Composite Video:  4 or 8 x CVBS, BNC female, *5Ω

    Unbalanced Audio: 4 or 8 x Stereo pairs (R&L),BNC female, **0Ω

                  Stereo or Mono mode



Video Encoding    MPEG*2 MP ML    **0***6/**4***6/**0***6/**2***6/**2***8 **0***0/**4***0/**0***0/**2***0/**2***0 

    Aspect Ratio: 4:3    Rate Mode: CBR, VBR 

Video bitrate:1 to 7Mbps per channel



Audio Encoding     MPEG*1 Layer 2    Sample Rate: *2 kHz, *4.1 kHz, *8 kHz

    Operation Mode: Stereo or Mono    Audio Encoding Rate:

*4/**8/**2/**6/**4 kbps

RF Input    1 x RF Input, 1 x RF Loop Out, **0 to **0dBm    Connector Type: F-Type (Female, *5Ω)

DVB-C 

ASI Transport Stream Input    Qty of ASI Input: 1 x ASI, 1 x ASI Loop Out    TS Packet Length: **8 or **4 Bytes

    Connector: BNC female, *5Ω    TS Output Bit Rate: 2 to *0Mbps

TS  Processing    Multiplexing,Re-multiplexing, 

Pass through    PSI/SI: PSI/SI auto-generation, manual insertion

    Capacity of Processing: Two transport streams, up to *4 programs    PID: Remapping and filtering and pass-through

    PCR: Auto re-correction    PSI/SI Standards: ISO/IEC ******1, DVB SI(ESI EN*****8)

        Real-time Statistics: TS rate, program rate, PID rate



QAM Modulation Output    Output Connector: 1 x RF Output

1 x **0dB RF Output (Test Port)    Annex A: *6 /*2 /*4 /**8 /**6QAM

Annex B: *4/**6QAM

Annex C: *2 /*4 /**8 /**6QAM

    Connector Type: F-Type (Female, *5Ω)    Annex A: 4.2 to 7 Mbaud

Annex B: 5.**7 Mbaud

Annex C: 4.2 to 5.3 Mbaud

    RF Frequency Range:*8 to **0 MHz    *0 to **0dBμV (RF output Port)

*0 to *0dBμV (**0dB test port)

    Bandwidth: 6 or 8MHz    MER: ≥*8dB (*4QAM, 6.**5MBaud)

    QAM channel:Dual adjacent QAM    SNR(Out of band): ≥*0dB

    *5.5M**1.6Mbps per QAM channel    Return Loss: ≥*2dB

    ITU-T J.*3 Annex A, B and C    0 to *0dB, Step Size 0.*5dB

    Optional    DVB-T(COFDM),ISDB-T,ATSC

Network Management    Interface:1 x *0/**0 Base-T Ethernet

    Connector:RJ**5

    Management:Web browser and SNMP management


Miscellaneous

Front panel    3.5LCD with 6 control Button for 2 lines alphanumeric display and parameter settings

    3*Dual color LED,for status indications of power,running and alarm

Rear panel    1*power Receptacle(AC )

    1*power switch

    1*Serial console port(via RJ *5 connector)

Power supply

Input Voltage     *****0VAC,*0/*0Hz

Power consumption    *0W(Max)

Environmental

Operating temperature    0℃ to *5℃(*2F to **3F)

Storage temperature    **0℃ to *0℃ (*4F to **6F)

Operating Humidity    *0%,non-condensing

Mechanical

Product Dimensions

(W*D*H)    **3mm**4.5mm***0mm

*9*1.*3(1U)**7.7

Product Weight    5Kg