| 摘要 |
In a passive optical network, the message cells output by a plurality of subscriber terminals are supplied to a single connection of a head end of a switching system; in this arrangement each subscriber terminal transmits a number of successive message cells grouped into a data block, which is preceded by a sequence of calibrating characters, only following a transmit authorization which is determined depending on its defined message cell rate and is output by the head end. FIG 1
|
