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Rmcgrath's avatar
Rmcgrath
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2 years ago

W914552s SSL76 E1 Spec

hi I need E1 line interface of IC W914552S SSL76. As E1 framing (multiframe SMCF, etc) and other characteristics. Thanks.
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BoonBengT_Altera's avatar
BoonBengT_Altera
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2 years ago

Hi @Rmcgrath,

If unsure if this is FPGA related or not, would you mind to share what product (i.e., hardware/software) are you working with?

Unfortunately we tried to search on your mention keyword but there unable to find relevant product, is it CPU/Graphic/Memory/etc?

Any details on your project would be helpful for us to understand the situation better.

Hope to hear from you soon.


Regards

BB


  • Rmcgrath's avatar
    Rmcgrath
    Icon for New Contributor rankNew Contributor
    2 years ago

    Hi, thanks.
    The product in question it refers to a hardware category of TDM Telephony interface cards (E1/PRI TDM, FXO Foreign eXchange Office and FXS Foreign Exchange Station) mainly used in Asterisk open source.
    My question it refers to china manufactured E1 TDM card which use E1 IC transceiver W914552S SLL76. This IC transceiver connect 30 digital voice channels in frames of 24 or 30 voice channels, plus tow channels one for synchronization and another for voice signaling, multiplexed in a 2 Mbits frame, the process of Multiplexing and coding is based on standards G703, 704, etc.
    Tks.