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Line Card Protection Switch for PDH, SONET or SDH Systems ADVANCED COMMUNICATIONS www.DataSheet4U.com Description FINAL Features DATASHEET
ACS8527 MUXPLL
The ACS8527 is a highly integrated, single-chip, MUX with PLL solution for protection switching between two SECs (SDH/SONET Equipment Clocks) from Master and Slave SETS (Synchronous Equipment Timing Source) clock cards, for line cards in a PDH, SONET or SDH Network Element. The ACS8527 has fast activity monitors on the inputs and will raise a flag on a pin if there is a loss of activity on the currently selected input. The protection switching between the input reference clock sources is controlled by an external pin. The ACS8527 has two SEC reference clock input ports, configured for expected frequency by setting hardware pins.
ACS8527 Datasheet
