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Main / MPEG4 (H.264/AVC) encoders, decoders, transcoders / PMPE-3630

PROFLEX™ PMPE-3630 series professional MPEG4(H.264/AVC) encoder / MPEG2-to-MPEG4 transcoder is capable of:

• MPEG4 (H264/AVC) High Profile Level 4,0 encoding of HD/SD SDI (1080i/50-59.9; 720p/50-59.9)
  MPEG4 (H264/AVC) High Profile Level 3,0 video and MPEG1 Layer II audio encoding of PAL/SECAM/NTSC video (576i/50; 480i/59.9), analog/AES/SDIembedded audio
  A one-program transport stream is provided at DVB-ASI and Ethernet 100 BaseT (MPEG-over-IP) interfaces
• MPEG2>MPEG4 transcoding of a multi-program MPEG2 DVB-ASI stream. One program is MPEG2->MPEG4 transcoded with re-multiplexed stream made available at DVB-ASI and Ethernet (MPEG-over-IP) interfaces. Devices may be daisy-chained via DVB-ASI/IP input.

Features

• HD/SD SDIembedded support
  (1080i/50, 1080i/59.9, 720p/50, 720p59.9, 576i/50, 480i/59.9)
• CVBS support (PAL, SECAM, NTSC)
• SDIembedded, AES/EBU and analog audio
• DVB-ASI (MPEG2) input for MPEG2 ->MPEG4 transcoding with remultiplexing:
  • system bitrate up to 80Mbps
  • transcoded program bitrate up to 20Mbps
• HDMI monitoring output
• built-in web interface for management and monitoring
• COP3 FEC (MPEG-PRO) error correction for IP output
• WSS, Teletext and subtitling support:
  • from SD SDI quasi-analog waveform in VBI lines
  • from HD/SD SDI ancillary data (SMPTE-2031)
• AFD support
• event logger capability

Technical specifications

Encoder parameters

HD video:
• Level H.264 (MPEG-4 Part 10) High Profile Level 4.0
• bitrates: 6~20Mbps, in 1kbps increments
SD video:
• Level H.264 (MPEG-4 Part 10) High Profile Level 3.0
• bitrates: 2.5~10Mbps, in 1kbps increments
Audio:
• MPEG-1 Layer II, stereo
• bitrates: 64kbps, 96kbps, 112kbps, 128kbps, 160kbps, 192kbps, 224kbps, 256kbps, 320kbps and 384kbps

Inputs and outputs

• Inputs
  • SDI
    

    Standard compliance	SMPTE 292M (HD SDI)	50I/1920*1080(2640*1125), 1080I/50
    		59.94I/1920*1080(2200*1125), 1080I/59.94
    		60I/1920*1080(2200*1125), 1080I/60
    		25P/1920*1080(2640*1125), 1080P/25
    		29.97P/1920*1080(2200*1125), 1080P/50
    		30P/1920*1080(2200*1125), 1080P/30
    		50P/1280*720(1980*750), 720P/50
    		59.94I/1280*720(1650*750), 720I/59.94
    		60P/1280*720(1650*750), 720P/59.94
    	SMPTE 259M (SD SDI)	50I/720*576, 625I/50
    		59.94I/720*480, 525I/59.94
    Input impedance, connector type	75 Ohm, BNC
    Automatic cable equalization	(8281 or similar), up to 100m

  • CVBS
    

    Input impedance				AC, over-voltage protected, 75 Ohm, BNC
    ADC, sampling rate				10-bits, 27MHz
    Frequency response ripple (undecoded transmission mode)				less than 0,2dB, up to 5,75MHz
    Luminance channel frequency response (decoded transmission mode, apperture correction OFF)
    SECAM	1.0MHz	2.0MHz	3.0MHz	4.0MHz	4.286MHz	4.8MHz	5.8MHz
    	±0.1dB	±0.2dB	<-2dB	-6±2dB	>-40dB	-3±1dB	±0.5dB
    PAL	<0.5dB up to 5.8MHz
    2T pulse K-factor				<0.5%
    Diff phase				<0.2%
    Diff gain				<0.2%
    S/N ratio (weighted)				>65dB
    Return loss				better than 40dB at 4,43MHz

  • Analog AUDIO
    

    Input impedance	10 kOhm
    Input type	balanced, clamp-on connectors
    0 dB FS level	+18dB

  • AES/EBU
    

    Input type	transformer balanced
    Connector type	3-contact clamp-on
    Amplitude	0.2~4.0V
    Input impedance	110 Ohm
    Maximum input cable length	up to 100 m of twisted pair

• Outputs
  • DVB-ASI
    

    Standard compliance	DVB-ASI
    Number of outputs	2
    MPEG format	188 bytes per packet
    Stream type	Multiprogram/Singleprogram
    Output connector, impedance	BNC, 70 Ohm

  • IP
    

    Type	1000Base-T/100Base-T
    Output protocols	RTP+FEC, RTP, UDP
    User-adjustable TTL	yes
    Forward Error Correction	COP3 FEC (MPEG-PRO), any combination of L and D (L*D<100, L<20, D<20) Block-aligned/Non Block-aligned
    Streaming mode	Multicast, Unicast
    IGMPv2 support	yes
    Connector type	RJ45-8/8

  • HDMI
    

    standard compliance	as per input signal standard
    Connector type	HDMI

  • GPO
    

    Number of outputs	4
    Output type	open collector
    Umax voltage	10 V
    Max load current	50 mA

Overview

PMPE-3630 belongs to the PROLFEX™ family of devices. Below is the simplified schematic diagram of PMPE-3630.

PMPE-3630 simplified diagram

For encoding, the input signal may be either CVBS (PAL/SECAM), or HD/SD SDI. For transcoding, the input is a DVB-ASI stream. The CVBS/SDI signal is converted to 10-bit 4:2:2 format, the Teletext packets are extracted, WSS, AFD are processed.
Audio signal is taken either from an SDIembedded audio group, an external AES/EBU or analog stereo source.
The encoded/transcoded signal is available on the HDMI output for monitoring.
The output program is available in either DVB-ASI or IP formats.

PMPE-3630 rear panel view

Web-based setup and management
1. Mode select (Input tab)
   • Video (encoding)
     • Input video format select:
       • SDI: HD SDI and SD SDI
       • CVBS: PAL, SECAM and NTSC
     • Input audio format select:
       • SDIembedded audio group number and channel
       • analog stereo input
       • digital (AES/EBU) input
     • VBI/ANC teletext support ON/OFF
     • Teletext format select:
       • ANC SMPTE 2031: from HD/SD SDI ancilary data (SMTPE2031)
       • ANALOG: from a quasi-analog waveform in the VBI lines
   Input status sub-frame displays diagnostic information on selected video mode.
   • DVB-ASI (transcoding) activates MPEG2->MPEG4 transcoding and enables the Transcoding tab for editing
2. Program select (Transcoding tab)
   • Select program button opens a pop-up frame to select a program from a list of detected ones. All the below parameters are filled automatically
   • manual selection of an MPEG2 program:
     • Service ID
     • PMT PID
     • Video PID
     • Audio PID
     • PCR PID
     • Teletext pass-through ON/OFF
     • Teletext PID
     • Remultiplexing (if checked) keeps all other programs in the stream intact. If un-checked only the transcoded program remains in the output stream
3. Encoder parameters (Encode tab)
   • Video format
   • System bitrate
   • Video bitrate:
     • HD: 6~20Mbps, in 1kbps increments
     • SD: 2.5~10Mbps, in 1kbps increments
   • Audio bitrate: 64kbps, 96kbps, 112kbps, 128kbps, 160kbps, 192kbps, 224kbps, 256kbps, 320kbps and 384kbps
   • Service ID
   • PMT PID
   • Video PID
   • Audio PID
   • PCR PID
   • Teletext PID
4. Output options and settings (Output tab)
   • Output settings:
     • Input loss mode
     • Insert DVB tables ON/OFF
   • DVB-ASI signal inversion ON/OFF
   • IP output settings:
     • IP protocol selection:
       • RTP+FEC
       • RTP
       • UDP
     • Address setting: multicast group or unicast address value
     • Port number setting (in case of RTP+FEC protocol, there will be three streams: N for RTP, N+2 for FEC1 and N+4 for FEC2)
     • FEC L value setting
     • FEC D value setting (for best recovery the L==4 and D==4 are recommended)
     • TTL value setting
5. Diagnostics (Device info tab)
   • Proflex slot number display where the device is inserted
   • user-configurable Device name field
   • factory-preset Device name (short)
   • device Uptime display
   • device System time display and synchronization to PC
   • Firmware version display

Local management and control

PMPE-3630 frontal panel view

The MODE+and MODE- buttons toggle through all the modes, the UP and DOWN buttons edit them, the ENTER button activates a new value/setting.

• VID - lit in green if a valid video signal is detected on the input, lit in red if no signal present, lit in yellow if parameters in the ENCODE and the INPUT tabs do not coinside
• AUD - lit in green if a valid audio group is detected on the SDI input, lit in red if no signal present
• SYSTEM - lit in green if no errors detected, lit in red if error(s) in parameters or operation occurs. The LED is OFF when PMPE-3630 is idling
• TTX - lit in green if WST Teletext is detected, lit in red if not. The LED is OFF when Teletext support is disabled

Output bitrate estimation

Please note that the video and audio bitrate shown in the device settings are raw. On the physical interfaces the actual bitrate will be higher depending on the streaming protocol and FEC values. Refer to Table#1 below.