摘要 |
Method and apparatus for synchronizing local clocks at each of two data stations. The first data station is connected through an analog network to an interworking unit. The second data station is connected through an integrated services network having a central clock, to the interworking unit. The interworking unit includes a comparator for comparing the clock phase from the first station transmit clock to the central clock. The result of the comparison is transmitted to the second data station for use in synchronizing the second data station to the first data station.
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