Overview
DMB‑9581E Encoder/Modulator is an integrated 1U rack‑mount unit that combines H.264 encoding, multiplexing, and modulation in a single chassis. It accepts configurable HDMI inputs (8, 12, 16, 20, or 24 channels), along with IP streams and 2 ASI inputs, and converts them into RF outputs compliant with DVB‑C, DVB‑T, ISDB‑T, or ATSC standards, operating across the 50–960 MHz frequency range. The device also provides 2 ASI ports and 1 IP port for outputting Transport Streams.
Features:
All-in-One Integrated Encoder, Modulator & Multiplexer – In addition to HDMI inputs, the unit supports 128× MPTS/SPTS streams via UDP/IP and 2× ASI inputs. RF output can be generated from HDMI, IP, or ASI sources. The device also provides IP outputs, including 127× SPTS over IP (UDP/RTP), 1–8× MPTS, and 2× independent ASI outputs. RF output is configurable as 4/8/16× RF carriers for DVB‑T/ATSC‑T/ISDB‑T/Tb/DTMB, or 16/32× RF carriers for DVB‑C. (Note: ISDB‑T RF output is limited to 1× ASI input and supports 2K mode only; 4K and 8K are not supported.)
Broad Source Compatibility – Compatible with hybrid input configurations such as HDMI + Tuner (DVB‑S2/C/T2/ISDB‑T/ATSC), for example 16× HDMI + 8× programmable‑frequency tuners.
Flexible Frequency Allocation – Provides 768 MHz of usable bandwidth, allowing flexible assignment of frequency points within this range (when configured for 16× RF outputs).
Multi‑Carrier Version Options – Available in configurations supporting 4/8/16 carriers for DVB‑T/C/ATSC/ISDB‑T, or 32× QAM carriers for DVB‑C, selected according to the required number of program channels.
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
FAQ
Why do I choose you as our products supplier?
DIGICAST is building up both domestic and overseas markets while making a good contribution to the TV broadcasting industry,which is the domestic first-class of professional video operating system products and technical service providers
Can we get a quote on an item?
Sure, we understand that you may require a quote on each item sometimes. Please email us or call us at info@digicast.cn and we will respond to you with a quote.
How can I get technical support help?
Send us e-mail or use whatsapp to contact the sale service. Our technical support staff will try to answer in a timely manner
What kind of shipping way for the sample and the shipment?
Normally we will ship by air express, such as DHL, FedEx,UPS or depends on the customers' needs.
When will my order be shipped?
Usually, we will arrange the delivery within 3-5 working days after receiving payment, if there are some customized requirements or the batch orders, Please confirm with sales representative
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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
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
