Origin	China
Model Number	EM200
Brand Name	CircLoop

EM200 is one of our newest products that complied with MPEG-2/DVB encoder with digital video/audio input, providing studio-grade quality. It will encode, packetize, multiplex one video, 4 audio and output two TS. The unique algorithm of compression and buffer-control enable EM200 compress one video signal at the bit-rate from 1Mbps to 50Mbps with excellent picture quality. EM200 especially suits contribution transmission of TV program between stations. Besides common ASI output port, it also provides abundant telecommunication interfaces, such as, DS3/E3/E2/E1/NXE1, which facilitate interlink with various backbone transmission system seamlessly. Web based browser to conveniently handle local and remote control.

Main Features
 Fully MPEG-2/DVB compliant, studio-grade picture and sound quality

Support 1 video and 4 audio encoding and multiplex simultaneously

Unique multiplex function that multiplex input 2 TS (ASI/DS3), SPTS (as whole or partial program)

Abundant Audio/Video interfaces: CVBS, S_VIDEO, SDI, balanced/unbalanced, AES/EBU

Abundant TS output, input interfaces: ASI, E3/DS3, N×E1, N×E2, RS449, V35, IP (optional)

 PCR jitter ?±80ns

Bit-rate can be adjustable, high performance RS error correcting coding

Auto recognize PAL, NTSC stream input

Alterable PID number

Able to set program name and service provider name
Automatically generate PSI/SI information table

High reliable design, steady operation

High performance-cost ratio

  Control and monitoring via web browser or front panel

Technical parameter
3.1 Video encoding

Video system: PAL, NTSC

 Analog video input: Analog input CVBS, S-VIDEO
Digital video input: SDI with embedded audio

Resolution: 720×576 PAL; 720×480 NTSC

MPEG-2 4:2:0 MP@ML

3.2 Audio encoding

 Audio mode: stereo, joint stereo, mono-channel, and dual-channel

Signal input: analog balanced/unbalanced, AES/EBU balanced/unbalanced (optional)

Encoding format: MPEG-1, Layer 1/Layer 2, CD quality

Code rate: 32 Kbps.64 Kbps.128 Kbps.192 Kbps.256 Kbps.384Kbps

Sampling frequency: 32KHz.44.1KHz.48KHz

3.3Video\ Audio Input Interface

Video: CVBS, S-VIDEO, SDI with embedded audio
Audio1: analog one stereo pair, balanced/unbalanced

 AES/EBU balanced/unbalanced (optional)

Audio2: analog one stereo pair, balanced/unbalanced (optional)

 AES/EBU, balanced/unbalanced (optional)

3.4 TS Input Interface
DVB: 1×ASI 75Ω(can multiplex the signal, then output, can reserve whole or

part program, can revise PID, program information etc)
G.703: 1×DS3/E3 75Ω(can multiplex the signal, then output, can reserve whole

or part program, can revise PID, program information etc)

3.5 TS output interface

l        DVB: :2×ASI, BNC, 75Ω

l        G.703: 1×DS3/E3, BNC, 75Ω (optional)

E1×N, BNC, 75Ω, N=1,2,3,4 (optional)

E2, BNC, 75Ω(optional)

3.6 Control

l        Front panel

l        Web browser

4. General Characteristic
 4.1 Physical structure

l        1RU chassis (19〃)

l        48.3×26.2×4.4cm

l        Weight: 4.2kg

 4.2 Power

l        AC: 90~260V; Frequency 47~63Hz

l        DC: 48V, 24V, 12V (option)

l        Maximum power consumption: 15W

 4.3 Environment

l        Working temperature: 0°C~45°C

l        Storage temperature: -20°C~70°C

l        Humidity: 20%~90% (non-condensing)

5. Application
l        Cable TV head end

l        Satellite broadcasting services

l        Terrestrial digital TV broadcasting

l        Remote news gathering

l        Video surveillance

l        VOD

l        Remote education and video conference