Outline
Low bit rate encoder is mainly composed of the following modules: A/V interface processing, A/V encoding, programme multiplexing, data output, and control processor.
Features
* MPEG-2 Standard
* Support Video VBR and CBR encoding
* Support extremely low MPEG-2 Video compact encoding and MPEG-4 encoding
* Video encoding bit rate: 1-7Mbps
* Support dynamic bit rate control of moving picture(Channel3 and channel4)
* Support MPEG-2 stream multiplexing
* Create PSI/SI information
* Has 4 independent A/V input connectors
* Has 4 independent A/V encoding
* Individual output of 1-4 channel stereo multiplexing TS stream.
* Multi A/V stream combinating method
* Multi-programme multiplexing output TS stream
* LCD display, easy operation
* Support remote network control
Specifications
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Video interface
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Composite video
signal
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Video System: NTSC(525/60) or PAL(625/50) optional
Connector: BNC
Impedance: 75W, unbalance
Frequency: 25Hz～5.75MHz
Level: 1.0Vp-p,
Sample frequency: 27MHz
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Audio interface
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Analog
audio
signal
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Connector: BNC(unbalanced)
Impedance: 600W,
Input: one stereo or two mono.
Output bit rate: 32kbps~384kbps
A to D accuracy: 16bits
Sample frequency: 32/44.1/48KHz
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MPEG-2 Video Encoding Compact
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Video
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Meet International standard ISO 11172(MPEG-1)and ISO 13818(MPEG-2)
MPEG-2 encoding impliments 4:2:0 MP@ML
Support MPEG-4 Level 5 ASP
Output bit rate 1-7Mbps continuous adjustment
Support VBR and CBR encoding
Support open, close and various flexible GOP structure, I, IP, IPB.
MPEG-2 self-adapting field frame(AFF)
MPEG-2 field base(FB)
Pattern: DVB standard transporting stream(TS)
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Audio
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Impliments MPEG-1 II level, CD quality
Audio sampling frequency:32KHz,44.1KHz,48KHz
Audio bit rate:64Kbps, 128Kbps, 192Kbps, 256Kbps, 384Kbps
Support 4channel stereo or double channels
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Format
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DVB standard TS
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Resolution
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Standard CCIR601; Compatible to 1/2D1, 2/3D1, 3/4D1, Full D1eGN.
PAL: 720*576,544*576,480*576,352*576
NTSC: 720*480,544*480,480*480,352*480
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Data Interface
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DVB Standard
Connector: BNC
Impedance: 75Ω
Packet format: 188 byte
Data rate: 1.5～9Mbps
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Network
Management
Interface
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IEEE802.3 ETHERNET,RJ45 interface
Software protocol: SNMP protocol
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Keep Status Of Power Off
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The encoder will keep status with the power being cut off, in order to auto-reset when electrified again.
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Power Supply
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90V~250V A.C, 50Hz ±2%, 20W
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Working
Environment
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5—45°C for operation
-25—55°C for storage
10~75% for relative humidity
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Radiation
and Safety
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GB13837-92 AND GB8898-88
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Mechanic characteristics
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Dimension:44.5mm(1U)*483mm*(19.0”)*300mm
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Weight
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5kg
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