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Reply To: SS7 – NSL/HSL links & timeslots


Hi pix

Its not so much the technology, but the nomenclature that maybe i’m not getting. I understand the TDM nature of a standard NSL link, and i’m think that links are differentiated between each other within the E1 trunk by timeslots (carried in the SLS). The above is something would like confirmed, if not can a link be said to also exist over multiple timeslots/channels?

But when you come to High-speed links, these allow full bandwidth utilization of a 2.048Mbps E1 for a single SS7 link, therefore if one (HS)link uses the whole bandwidth, and each link equates to one timeslot, then have the TDM periods have changed, or is the HSL existing across all timeslots?