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TL306 E1X4 to ASI SFN Network Adapter
TL306 E1X4 to ASI SFN Network Adapter

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MPEG-2/DVB network adapter
DS3 to ASI, or E1X4 to ASI
web browser management




TL300 series products are Network adaptor developed by Beijing CircLoop Digital Image Tech. Co., Ltd. independently, which can extract SIP from TS and parse it, and adjust the output bit rate of ASI TS automatically to ensure the signal of SFN can be transmitted transparently, synchronize the signal transmitted by all transmitters in the DVT-T SFN. TPS signal command support all mode of GB20600-2006, it is indispensable equipment to construct DTV-T SFN.  

Network of DS3/E3 to ASI and E1×4 to ASI are available, support transmission that SFN signal on the telecommunication equipment of microwave SDH etc. it is convenience to construct SFN network. This series equipment can combine with our products TL400 seriesIP600IR600 etc to make many kind of SFN transmission scheme. 

This series equipment can be used as network adaptor which convert DS3 to ASI and E1×4 to.

This series equipment has abundant input and out put interface. With one channel DS3/E3 input interface, it can support SFN sip extracting. It has GPS clock input interface, one channel 10MHz input interface, E1×N input interface N=1234, DS3/E3 output interface, 2 channel ASI-A output interface, two channel ASI-B output interface.

It is modular and plug-in plate structure. Based on the web browser management and controlling, it is easy to operate and maintain.


Physical Structure:


Main features

Function characteristics

Fully conform to MPEG-2/DVB standardSupport all modes of GB20600-2006,output speed rate can be adjusted automatically according with transmission mode DS3 input interface support many kinds of transmission protocol Two channel ASI output, each includes main and standby output interface Support PCR re-identify Built in network adaptor convert DS3 to ASI and E1×4 to ASI,suit to many signal channel transmission Network management based on web browser,with many signal warning and report error function With modular plug-in plate structure, it can combine multi function flexibly

Technical Parameter

Input interface

DS3/E3 Input optional1 channel DS3/E3 input,meets G.703 standard,BNC,impedance 75ΩE1×N InputoptionalE1×N input,N=1,2,3,4 Meets G.703 standard,BNC,impedance 75Ω

GPS clock input

1 channel 10MHz input,BNC,AC coupling,impedance 50Ω1 channel 1pps input,BNC,TTL level,impedance 50Ω

Output interface

DS3/E3 output1 Channel DS3/E3 output,meets G.703 standard,BNC,75ΩSupport byte modePackage mode, and 188204 length of package ASI Output optional2 channel ASI-A output, Vpp=800 millivolt ±10,BNC,impedance 75Ω2 channel ASI-B output,Vpp=800 millivolt ±10,BNC,impedance75Ω

Network Management

Network Management based on web browser

TL300 series type  and function correspondence table

TL300 network adaptor type and function correspondence table





DS3/E3 input

E1X4 input

10MHz1pps input

ASI-A output

ASI-B output



Support SFN

















Support SFN




Support SFN


General Characteristic

Physical structure



AC:110V-240V Frequency: 50-60HzDC:Optional 48V, 24V,12VMaximum power consumptionper model less than 5W


Work temperature:p0°C~55°CStorage temperature-20°C~70°CHumidity≤95% (none condensing)


Construct network of DTV-T,DTV-B Signal transmission of DTV-T,DTV-S in telecommunication network TS Distribution and transmission of DTV

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