Product Outline
DHP400 20 in 1 mux-scrambling encoder modulator is a high performance and cost-effective mux-scrambling encoding QAM modulator designed by Dexin. It has 20 CVBS input interfaces and 20 pairs of unbalanced analogue stereo audio input interfaces. After encoding, multiplexing, scrambling and QAM modulating process, then it gives 16 RF output and dual MPTS IP output. Its pluggable structure design greatly facilitates the change of modules as needed.
The device is also characterized with high integrated level, high performance and low cost. This is very adaptable to newly generation CATV broadcasting system.
Key Features
* 20 A/V inputs with MPEG2 encoding
* 16 channels multiplexing+16 channels scrambling+16 channels QAM modulating
* Fully support DVB-C (EN300 429) and ITU-T J.83A/B
* Fully support DVB general scrambling system description ETR289,
simulcrypt standard ETSI 101 197 and ETSI 103 197
* Support accurate PCR adjusting
* Support PSI/SI editing and inserting
* Excellent RF output performance index, MER≥40db
* Support IP input(UDP/RTP) and output (UDP/RTP/RTSP)
* Support Web management, Updates via web
Input | 20CVBS inputs , BNC interface 20 pairs unbalanced stereo audio input, BNC interface 2 GE port for IP input ( UDP/RTP) | |||||
Video | Resolution | 720×480_60i, 544×480_60i, 352×480_60i 352×240_60i, 320×240_60i, 176×240_60i, 176×120_60i | ||||
720×576_50i, 704×576_50i, 640×576_50i, 352×288_50i 320×288_50i, 176×288_50i, 176×144_50i, | ||||||
Encoding | MPEG-2 | |||||
Bit-rate | 0.1Mbps~8Mbps each channel | |||||
Rate Control | CBR/VBR | |||||
GOP Structure | IBBPB | |||||
Advanced Pretreatment | De-interlacing, noise reduction | |||||
Audio | Encoding | MPEG-1 Layer 2, AC3 | ||||
Sampling rate | 48KHz | |||||
Resolution | 24-bit | |||||
Bit-rate | 128Kbps,192kbps,256kbps,320kbps,384kbps each channel | |||||
Multiplexing | Maximum PID Remapping | 180 input per channel | ||||
Function | PID remapping ( automatically or manually) | |||||
Accurate PCR adjusting | ||||||
Generate PSI/ SI table automatically | ||||||
Scrambling | Maximum simulcrypt CA | 4 | ||||
Standard | EN300 429/ITU-T J.83A/B/C | |||||
Connection | Local/remote connection | |||||
Modulation | QAM Channel: 16 Standard: EN300 429/ITU-T J.83A/B/C MER: ≥40db RF frequency: 50~960MHz, 1KHz step RF output level: -20~+10dbm(87~117 dbµV), 0.1db step Symbol Rate: 5.0Msps~7.0Msps, 1ksps stepping Constellation: 16/32/64/128/256QAM | |||||
| J.83A | J.83B | J.83C | |||
Constellation | 16/32/64/128/256QAM | 64/256 QAM | 64/256 QAM | |||
Bandwidth | 8M | 6M | 6M | |||
Stream output | RF output (F type interface) | |||||
1 ASI output (BNC interface) | ||||||
16 IP output over UDP/RTP/RTSP, 2*1000Base-T Ethernet interface | ||||||
System function | LCD/keyboard, network management(WEB) | |||||
Chinese and English language | ||||||
Ethernet software upgrade | ||||||
Miscellaneous | Dimension(W×L×H) | 482mm×410mm×44mm | ||||
Approx weight | 8kg | |||||
Environment | 0~45℃(work)；-20~80℃（Storage） | |||||
Power requirements | AC 110V± 10%, 50/60Hz, AC 220 ± 10%, 50/60Hz | |||||
Power consumption | 20W | |||||
