The PBI DCH-3000EC MPEG-2 audio and video digital compression encoder is a professional broadcast-grade real-time digital encoder that complies with the ISO/IEC13818 standard. It offers excellent cost-performance and can be widely used in areas such as the digital networking of cable television, digital television broadcasting, digital multiplex transmission of MPEG-2/DVB standard video programs, remote television monitoring, and network video applications. Its main function is to digitally sample and compress, encode analog video signals (RCA, Y/C, RGB, YUV, etc.) and analog audio signals, converting them into baseband digital transport stream (TS) output signals, providing a digital signal source for digital QAM modulators or channel multiplexers. The input analog video can be in PAL or NTSC format; the video compression bit rate (1–15 Mbps) can be adjusted according to the bandwidth of the transmission system. It features two formats for digital transport stream output: DVB-ASI serial and DVB-SPI (LVDS, EN50083-9) parallel, as well as a USB interface output, allowing stream signals to be sent to a computer for editing. With an LCD display and a 1.5U chassis structure, it can be installed in a standard 19" rack, making it an essential device for the digitalization of CATV front ends at cable stations.
Features · Designed entirely according to CATV engineering requirements
· Fully compliant with international MPEG-1 (ISO/IEC11172-2), MPEG-2MP@MLencoding (ISO/IEC13818-2)
· Adopts the CCIR601 video compression standard, with audio compressed using MPEG1 Layer1 and Layer2 algorithms
· Switchable input for analog S-Video and composite video, as well as dual-channel audio input
· Multiple video resolutions available, including Full D1, Half D1, SIF, QSIF, etc.
· Stream signals can be output via USB1.1 interface for editing on a computer
· Serial ASI and parallel SPI (LVDS) outputs at a rate of 270MB/s simultaneously
· Supports the configuration of video PID and audio PID.
- The front panel displays the working status of the analog video input and digital video encoding output.
· LCD screen display and user-friendly interface
· Flexible GOP (group of pictures) structure
· Equipped with power-off memory function
· Network remote monitoring and software upgrades can be performed via the RS-232 interface.
Technical Specifications
Video Input and Compression
Input composite video interface and S-Video interface that comply with the CCIR601 standard.
YUV analog component interface (optional), SDI serial digital component interface (optional)
Video format supports PAL and NTSC.
Compression formats MPEG-1 (ISO/IEC11172-2); MPEG-2MP@MLencoding (ISO/IEC13818-2)
Maximum bitrate 15Mbps
Resolution supports Full D1, Half D1, SIF, QSIF.
Audio Input and Compression
Compression uses MPEG1 Layer1 and Layer2 algorithms.
Signal sampling rates: 32KSPS, 44.1KSPS, 48KSPS
Compression bitrate can be selected between 32, 64, 128, 192, 256, and 384 Kbps.
Output DVB-ASI serial data.
Interface 50 Ohm (75), BNC interface
Data transfer rate 270Mb/s
Data Mode: Byte Mode
Bag length 188
Signal level 800mV
DVB-SPI (EN50083-9) Parallel Data Output
Interface 25-pin D-type connector
Package length 188
The parallel port data stream consists of Data(0-7), Byte Clock (Clock), Packet Synchronization (Psync), and Data Valid (Dvalid).
Transmission Method: LVDS (Low Voltage Differential Signaling)
Control the status of the 24 X 2 character LCD display.
Standard RS232 Interface
10M Ethernet interface (optional)
General Physical Parameters
Operating temperature 0 to 40℃
Storage temperature: -20 to 70℃
Humidity < 95%
Power supply: 220V±10%, frequency 50Hz±2Hz, 20W
Appearance 1.5U
Dimensions: 483mm x 425mm x 66mm
Weight: 3Kg