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DHP230 DTV Headend Processor
Outline
DHP230 is a high-performance and cost-effective DTV Headend Processor designed by Dexin. It support max 3 modules inputs(demodulating/descrambling module at present), after multiplexing and modulating process, then it gives 16 DVB-C or 8 DVB-T or 8 ATSC or 6 ISDB-T non-adjacent carriers output within 192MHz bandwidth. To meet customers’ various requirements, this device is also equipped with 128 IP inputs over UDP and RTP, 1 USB input, 1 ASI input and 1 DVB-S/S2/S2X input and 1 ASI out and 16/8/8/6 MPTS outputs over UDP and RTP/RTSP. Its pluggable structure design greatly facilitates the change of modules as needed. Moreover, the CAMs/CIs accompanied and BISS modules can descramble the programs input from Tuner inputs.
DHP230 can be upgraded and controlled through network system, which allows it to be widely used in setting up digital broadcasting network and very adaptable to newly generation CATV broadcasting system.
Key Features
Modularized plug-in design, 1U chassis and 3 module slots
Support flexible combination of the different type of modules
maximum 128 IP input(MPTS/SPTS) over UDP and RTP protocol from DATA 1 port
1 ASI input and 1 DVB-S/S2/S2X tuner input for multiplexing
1 USB Player (Insert the USB Flash drive with “xxx.ts” videos in DHP230 and play back the content in an easy way; file system FAT 32)
Support 16 groups multiplexing/DVB-C modulating
Support 8 groups multiplexing/DVB-T/ATSC modulating---Optional
Support 6 groups multiplexing/ISDB-T modulating---Optional
Support 1 ASI out as mirror of one of RF output carriers
Support 16 MPTS IP output over UDP, RTP/RTSP –DVB-C RF out
Support 8 MPTS IP output over UDP, RTP/RTSP-- DVB-T/ATSC RF out
Support 6 MPTS IP output over UDP, RTP/RTSP-- ISDB-T RF out
Support accurate PCR adjusting, PID Remapping, PSI/SI rebuilding and editing
Web-based NMS management
Principle Chart
Chassis Specifications
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Input |
3 Modules inputs(see the module specification)
1 ASI in for re-multiplexing |
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Multiplexing |
Maximum PID Remapping |
256 input per channel |
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Function |
A/V PID Filtering |
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PID remapping ( automatically or manually) |
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Accurate PCR adjusting |
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Generate PSI/ SI table automatically |
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Modulation |
DVB-C |
QAM Channel |
16 non-adjacent carriers output (maximum bandwidth 192MHz) |
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Standard |
EN300 429/ITU-T J.83A/B |
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MER |
≥40db |
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RF frequency |
50~960MHz, 1KHz step |
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RF output level |
-20~+3dbm, 0.1db step |
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Symbol Rate |
5.0Msps~7.0Msps, 1ksps stepping |
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J.83A |
J.83B |
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Constellation |
16/32/64/128/256QAM |
64/256 QAM |
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Bandwidth |
8M |
6M |
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DVB-T |
Standard |
EN300744 |
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FFT mode |
2K,4K, 8K |
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Bandwidth |
6M, 7M, 8M |
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Constellation |
QPSK, 16QAM, 64QAM |
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Guard Interval |
1/4, 1/8, 1/16, 1/32 |
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FEC |
1/2, 2/3, 3/4, 5/6, 7/8 |
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MER |
≥42 dB |
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RF frequency |
50~960MHz, 1KHz step |
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RF out |
8 non-adjacent carriers output (maximum bandwidth 192MHz) |
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RF output level |
-20~ +3dBm, 0.1db step |
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ATSC |
Standard |
ATSC A/53 |
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Bandwidth |
6M |
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Constellation |
8VSB |
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FEC |
RS(208 188)+Trellis |
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MER |
≥40dB |
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ACL |
-55 dBc |
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RF frequency |
50~960MHz, 1KHz step |
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RF out |
8 non-adjacent carriers output (maximum bandwidth 192MHz) |
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RF output level |
-20~+3dbm (for all carriers), 0.5db stepping |
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ISDB-T |
Standard |
ARIB STD-B31 |
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Bandwidth |
6M |
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Constellation |
QPSK, 16QAM, 64QAM |
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Guard Interval |
1/32, 1/16, 1/8, 1/4 |
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Transmission Mode |
2K, 4K, 8K |
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Code rate |
1/2, 2/3, 3/4, 5/6, 7/8 |
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MER |
≥40dB |
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RF frequency |
50~960MHz, 1KHz step |
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RF out |
6 non-adjacent carriers output (maximum bandwidth 192MHz) |
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RF output level |
-20dBm~+3dBm, 0.1dB stepping |
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Stream output |
1 ASI output as mirror of one of RF output carriers 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*100M/1000M Base-T Ethernet interface, DATA 2 |
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System function |
Network management (WEB) |
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Chinese and English language |
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Ethernet software upgrade |
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Miscellaneous |
Dimension (W×L×H) |
482mm×380mm×44mm |
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Environment |
0~45℃(work)；-20~80℃（Storage） |
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Power requirements |
AC 110V± 10%, 50/60Hz, AC 220 ± 10%, 50/60Hz |
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Module Specifications
DX902A 2 Tuner Descrambling Module
Stream in:
2 Tuner input, F Type,
Stream out: 1 MPTS output to DHP230 chassis for re-multiplexing
DVB-CI:
2 independent common interface slots
Standard: DVB-S/S2/S2X;
DVB-S
Input Frequency: 950-2150MHz
Symbol Rate: QPSK 1~45Msps
Signal Strength: -65~ -25dBm
FEC Demodulation: 1/2, 2/3, 3/4, 5/6, 7/8
DVB-S2
Input Frequency: 950-2150MHz
Symbol rate: QPSK/8PSK 1~45Msps; 16APSK 1~45 Msps; 32APSK1~32 Msps
FEC Demodulation: 1/2, 2/3, 3/4,5/6,7/8, 4/5,5/6,8/9, 9/10
DVB-S2X
Input Frequency: 950-2150MHz
Symbol rate: QPSK/8PSK/16APSK 0.5~45 Msps;
8APSK/32APSK: 0.5~40Msps
FEC Demodulation:
QPSK: 1/2, 3/5, 2/3, 3/4, 4/5, 5/6, 8/9, 9/10, 13/45, 9/20, 11/20
8PSK: 3/5, 2/3, 3/4, 5/6, 8/9, 9/10, 23/36, 25/36, 13/18
8APSK: 5/9-L, 26/45-L
16APSK: 2/3, 3/4, 4/5, 5/6, 8/9, 9/10,1/2-L, 8/15-L, 5/9-L, 26/45, 3/5, 3/5-L, 28/45, 23/36, 2/3-L, 25/36, 13/18, 7/9, 77/90
32APSK: 3/4, 4/5, 5/6, 8/9, 2/3-L, 32/45, 11/15, 7/9
Support Diseqc function
Multiplexing:
Maximum PID Remapping: 256 output pids
Function: PID remapping (automatically or manually), Accurate PCR adjusting, generate PSI/ SI table automatically
Descrambling:
CAM/CI Quantity: 2
BISS Mode: Mode 1, Mode E; 32 BISS Keys
DX942A 4 frequencies Descrambling Module
Stream in:
4 frequencies input(each RF in interface for 2 frequencies locking), F Type,
Stream out: 1 MPTS output to DHP230 chassis for re-multiplexing
DVB-CI: 2 independent common interface slots
Standard: DVB-C (J.83 A/C)/J.83B/ DVB-T/DVB-T2/ISDB-T switchable
Standard: DVB-C (J.83 A/C); J.83B
Input Frequency: 60MHz~890MHz
Symbol rate: 1000~9000Ksps
Constellation: 16/32/64/128/256 QAM; 64/256 QAM for J.83B
Standard: DVB-T/T2
Frequency In: 60MHz~890MHz
Bandwidth: 5/6/7/8M bandwidth
PLP supported for DVB-T2
Standard: ISDB-T
Input Frequency: 60-890MHz
Multiplexing:
Maximum PID Remapping: 256 output pids
Function: PID remapping (automatically or manually), generate PSI/ SI table automatically
Descrambling:
CAM/CI Quantity: 2
BISS Mode: Mode 1, Mode E; 32 BISS Keys
