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TL300 DTV Network Adapter(support SFN)
TL300 DTV Network Adapter(support SFN)

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convert DS3/E3 to ASI and E1x4 to ASI adapter
support various transmission protocal
Web Browser
Support SFN, SNMP


TL300 series products are Network adapter developed by Beijing CircLoop Digital Image Tech. Co., Ltd. independently, which can convert DS3/E3 to ASI or E1×4 to ASI, and support SFN signal’s transmission.

This equipment can ensure SIP’s SFN signal is transparently transmitted on Telecom equipment such as microwave and SDH etc. support all 33 modes of GB20600-2006. This series equipment can join with our products IP600,IR600, TL400 series etc to make many kind of SFN transmission scheme.

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

This series equipment has abundant input and output interface. It has 1 channel DS3/E3 input (with active loop output), GPS clock input(10MHz,1pps), E1×N input (N=1,2,3,4), 2 channels ASI-A output, 2 channels ASI-B output.

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 conforms to MPEG-2/DVB,G.703,GB20600-2006 standardBe able to convert DS3/E3 to ASI and E1x4 to ASI simultaneouslyDS3/E3 input support various transmission protocalEnsure transparently transmistting SFN signal on telecom equipment such as microwave,SDH etc.Two sets independent ASI output, each one has main and standby outputSupports PCR re-identifyNetwork management based on web browser,with many signal warning and error –reporting function Modular plug-in plate structure, it can combine multi function flexibly

TL300 series type  and function correspondence table

<TL300 network adapter type and function correspondence table>












Support SFN

















Support SFN




Support SFN




Construct network of  terrestrial DTV broadcasting,Mobile TV broadcasting  Transmit the signal of terrestrial DTV and mobile TV via telecom networkDistribut and transmit DTV TS

P.S: We also have ASI to E1X4, DS3 , E3 to ASI adapter, please referen to our TL400  adapter

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