The following content is an automatically extracted verbatim text
from the original manufacturer datasheet and is provided for reference purposes only.
View original datasheet text
Line Card Protection Switch for PDH, SONET or SDH Systems ADVANCED COMMUNICATIONS www.DataSheet4U.com Description FINAL Features DATASHEET
ACS8526 LC/P LITE
The ACS8526 is a highly integrated single-chip solution for protection switching between two SECs (SDH/SONET Equipment Clocks) from Master and Slave SETS clock cards, for line cards in a PDH, SONET or SDH Network Element. The ACS8526 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 ACS8526 has two SEC reference clock input ports, configured for expected frequency by setting hardware pins or by writing to registers via the serial interface.