Overview
DMB-9581E Encoder/Modulator is an all-in-one device integrated encoding (MPEG-4/AVC H.264), multiplexing and modulation functions in one standard 1U case.
It can convert 8/12/16/20/24 HDMI signals ,IP and 2 ASI input to DVB-C/DVB-T/ISDB-T/ATSC
RF out in the frequency range of 50~960MHz.It is also equipped with 2 ASI ports and IP port to output TS.
Features:
Highly Integrated All-in-One Digital TV Frontend Solution
This device integrates real-time HD encoding, professional digital multiplexing, and multi-standard RF modulation into a single compact platform, eliminating the need for separate standalone equipment and simplifying end-to-end TV signal distribution architecture. It supports seamless access and mixed processing of diverse signal sources, including HDMI baseband inputs, 128-channel MPTS/SPTS streams over UDP/IP, and 2 independent ASI inputs. Any accessed source (HDMI, IP, or ASI) can be flexibly routed to any output port, delivering unmatched versatility for broadcast, hospitality, and cable TV front-end applications.
Comprehensive Signal Source Compatibility & Hybrid Input Support
Beyond core HDMI, IP, and ASI inputs, the device features extensive adaptability to mainstream digital TV tuner signals, with full compatibility for DVB-S/S2, DVB-C, DVB-T/T2, ISDB-T, and ATSC standards across satellite, cable, and terrestrial TV reception. It enables simultaneous hybrid input of HDMI HD signals and tuner frequency signals, with customizable configuration schemes such as 16-channel HDMI + 8-channel tuner (frequency point) input, perfectly adapting to diverse signal access requirements in different deployment scenarios.
Rich, Configurable Full-Matrix Output Capabilities
The device delivers comprehensive output options to align with global transmission standards and project-specific needs:
IP Output: Supports 127-channel SPTS over UDP/RTP, plus 1 to 8 independent MPTS outputs for flexible IP stream distribution
ASI Output: Equipped with 2 fully independent ASI output interfaces for lossless baseband signal transmission
RF Output: Offers a wide range of customizable configurations, with 4/8/16-channel RF carrier outputs compatible with DVB-T, ATSC-T, ISDB-T/Tb, and DTMB terrestrial TV standards, or 16/32-channel QAM carrier outputs optimized for the DVB-C cable TV standard
*Special Note for ISDB-T Mode: When configured for ISDB-T RF output, only 1-channel ASI input is available; ISDB-T output only supports 2K transmission mode, and does not support 4K or 8K UHD signal processing.
Application
Various of DTV/CATV Broadcasting Systems
Distribute IP source,HDMI programs source to All TVs over existing TV coax
Upgrade all your analog Head-ends to digital TV Solution
Enterprise, hotel, campus, hospital, restaurant, public place etc
Works with Digital TV transmitter in wireless TV broadcasting
Low cost Digital TV distribution
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Technical Specifications
Video Specifications
Video compression: MPEG-4 AVC/H.264
Video inputs: Version 1: 4/8/12/16/20/24*HDMI for option
Version 2: HDMI+Tuner Mixed input
The Input Resolution:
1920×1080@60P, 1920×1080@60i, 1920×1080@50P, 1920×1080@50i,
1280×720@60P, 1280×720@50P, 720×576@50i, 720×480@60i
The Output Resolution(Max 1080P@60 FPS):
1920×1080@60P,1920×1080@50P,1920×1080@30P,1920×1080@25P, 1280×720@30P,1280×720@25P, 720×576@25P, 720×480@30P
Bit-rate: 1 ~ 13Mbps, CBR/VBR
GOP Structure: IPPPP (P Frame for adjustment, without B Frame)
Audio Specifications
Encoding: MPEG-1 Layer 2
Sampling rate: 48KHz
Resolution: 24-bit
Bit-rate : 64kbps, 128Kbps, 192kbps, 224kbps, 256kbps, 320kbps, 384kbps
Audio Gain: 0-255
Inputs and Outputs
ASI Input/output
Channel: 2*ASI(Independent) input and 2*ASI output
Interface: BNC, 75 ohm
Signal level 200-800mVp-p
Packet length: 188 bytes
Maximum bit-rate: per port ≤100Mbps
Packet mode: Byte mode
IP Input and Output
RJ45 Port, 100/1000M GigE Port
Simultaneous output with 127*SPTS + 1*MPTS (4*RF Output)/ 8*MPTS (8*RF / 16*RF DVB-C Output)
TS over RTP, UDP unicast and multicast streaming
Configurable packet size(2-7)x188Bytes
Filter Null Packet
Total Bitrate: 1-200Mbps (Should be More than Encoding bitrate)
Modulation (4/8/16*RF DVB-T/ATSC/ISDB-T or 16/32 DVB-C out for option)
Connector: 1 Port, F-Type, 75Ω
Output Return Loss: 14 dB
MER ≥40dB
RF output level: -20 ~ 0dbm, 0.1db step
Numbers of RF Channel: 4/8/16
Modulation Mode: DVB-C, DVB-T, ATSC, ISDB-T, DTMB option
DVB-T Modulation
Channel: DVB-T adjacent frequencies
Modulation standard: EN300744
Frequency range:50-960Mhz,1Khz one step
Modulation standard: EN300744
Bandwidth: 6M, 7M, 8M
FFT mode: 2K, 8K
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
TS bit rate < 31 Mbit/s
ATSC-T Modulation
Channel: 8VSB adjacent frequencies
Constellation: 8VSB
Frequency range:50-960Mhz,1Khz one step
Constellation: 8VSB
TS bit rate <19 Mbit/s
MER≧40 dB
DVB-C Modulation(16 or 32 DVB-C out option)
16* DVB-C Output Modulation
Channel: 16*DVB-C adjacent frequency RF out
Frequency range:50~960MHz,1Khz one step
Bandwidth range 192 Mhz between start frequency and end frequency,set 16 frequency within 192 Mhz bandwidth range
MER≥40 dB
symbol rate:5~7Mbaud
total output level adjustment -35~-5dBm by 0.1 dB step
DVB-C Standard J83.A (DVB-C, J83.B, J83.C)
Constellation (QAM):16,32,64,128, 256
|
Carrier |
Annex A |
Annex B |
Annex C |
|
|
Constellation (QAM) |
16,32,64,128, 256 |
64 |
256 |
64/256 |
|
Bandwidth (Mhz) |
8 |
6 |
6 |
6 |
|
Symbol Rate ( Mbaud) |
5-7 |
5.057 |
5.361 |
4.2-5.3 |
32* DVB-C Output Modulation
Channel:32*DVB-C non-adjacent frequency RF out
Frequency range:96~864MHz,1Khz one step
bandwidth range 768 Mhz,frequency points can be used flexible within bandwidth range
MER≥40 dB
symbol rate:5~7Mbaud
total output level adjustment -35~-5dBm by 0.1 dB step
DVB-C Standard J83.A (DVB-C, J83.B, J83.C)
|
Carrier |
Annex A |
Annex B |
Annex C |
|
|
Constellation (QAM) |
16,32,64,128, 256 |
64 |
256 |
64/256 |
|
Bandwidth (Mhz) |
8 |
6 |
6 |
6 |
|
Symbol Rate ( Mbaud) |
5-7 |
5.057 |
5.361 |
4.2-5.3 |
ISDB-T Modulation
Channel: ISDB-T frequency
when ISDB-T RF output only 1*ASI input,
Frequency range: 50-960Mhz,1Khz one step
ISDB-T Standard ARIB STD-B31
Constellation: DQPSK, QPSK, 16QAM, 64QAM
Guard Interval:1/32, 1/16, 1/8, 1/4
Transmission Mode:2K,4K,8K(when 4*ISDB-T out, Mode only support 2*K, when 8/16*ISDB-T out,support 2K,4K,8K option)
Code rate:1/2, 3/4, 5/6, 7/8
Bandwidth:6MHz
TS bit rate＜21 Mbit/s
MER≥40 dB
DTMB Standard GB20600-2006
Constellation: 4QAM, 16QAM, 32QAM, 64QAM
Code rate: 0.4, 0.6, 0.8
Guard Interval: 420, 595, 945 IONS
System Management
Connector: 1*RJ-45, 10/100 Base-T interface.
Front panel and web browser via Ethernet interface
Physical and Power
Voltage: 100 to 120/200 to 240V AC ±10%; 50/60Hz
Consumption: 60W
Operating temperature: 0 ~ 45℃
Storage temperature: -20 ~ 80℃
Relative humidity: 10%~90%(non-condensing)
Dimensions: 482mm(W) × 380(D)mm × 45mm(H)(19inch, 1RU)
Weight: 9.6 KGS
