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Digital Equipments

DVB-C STB

The STB for CATV may receive digital receive digital signal from cable network and output A/V signal. It also has CA function. DVB-C, set top box feature:

  • The demodulator is compatible with MPEG-2 standard. It can receive DVB-C digital signal, and has video/audio output.
  • Main Features Compatible with DVB-C/MPEG-2 PAL/NTSC compatible English / Chinese language menu 700 programs could be saved stereo, left, right audio channel out.
  • Signal quality indication AV output RF loop output Power off memory EPG .
Rear panel
  1. AC 100V240V50Hz60Hz : Power Supply Socket: AC 100V~AC240V, 50~60Hz
  2. SWITCH: POWER SWITCH
  3. RS232: For software update.
  4. S-VHS:S-Video
  5. R Audio output L : Audio output
  6. Video out: Video output
  7. RF in: RF input
  8. RF out: RF output
  9. inCABLE ANT INPUT
  10. outCABLE ANT OUTPUT

Encoder

Features

  1. Encoder Video compress compliant to ISO/IEC13818-2(MPEG2) and ISO/IEC14496-2(MPEG-4).
  2. Up to 4 CVBS video and 8 two-channel audio inputs, Two DVB-ASI outputs.
  3. One 10/100/1000Mbps TS over IP Ethernet port with bitrate auto-negotiable.
  4. WDE-4420 encoder is compliance to DVB standard broadcast real-time video and audio MPEG-2/MPEG-4 compression equipment with both DVB-ASI and GbE TS over IP outputs.
  5. Both local or remote network management and online update.

QAM Modulator

Features:

  1. QAM Modulator Up to 2 ASI inputs
  2. Two independent DVB-S QPSK, SCPC and MCPC compatible inputs with 950~2150MHz frequency range
  3. Up to 108Mbps bit rate for each DVB-ASI input
  4. Support TS (SPTS or MPTS) re-multiplexing with ASI output 4~256QAM modulation modes with adjustable Symbol Rate up to 7Mbaud
  5. Max. Effective bit rate up to 51.6Mbps (SR=7Mbaud, 256QAM)
  6. Nominal RF Output power ≥ 100dBuV ( with 0~25dB adjustable attenuation range) and 48~863MHz frequency range
  7. IF out(35~45MHz, 125kHz step)
  8. TS packet format input automatic detection and output configurable (188 or 204 bytes)
  9. 2 ASI inputs (Max. Bit rate of each channel up to 108Mbps), 2 QPSK inputs and one ASI output after re-multiplexing, one IF and RF testing output.

Stream Re-multiplexer

Multiplexer Features:

  1. Has filter PID and reorganize function, it can be used in adding and cutting the channels, showing the PID of channel and offering the self-defining PID
  2. Discern input TS automatically, have the function of statistic and analyze of MPTS signals
  3. Output connector is DVB ASI or SPI digital data, offer the E3 or DS3 connector to meet the SDH, PDH and PSTN request of network transmission
  4. Plug-in strong power software, operating conveniently
  5. 19" 1U standard case, plug-in VFD screen, shows operating condition clearly
  6. Set with RJ-45 net connector, monitoring conveniently