Chapter4
HardwareBoard
TableofContents
MCS................................................................................23
LineInterfaceCard............................................................38
MCS
MCSisthecoreofZXR108900seriesswitch,implementingthe
functionsofcontrolmoduleandswitchingmodule.
ForZXR108900seriesswitch,MCScardprovidesmaster/slave
switchoverfunction.Italsoperforms1+1redundantconīægura-
tion.
RS-8912-MCSIIBoard
FunctionRS-8912-MCSIIisenhancedMCS,hasmaster/slaveswitchover
function,andisconīæguredwith1+1redundancy.
PanelRS-8912-MCSIIfrontpanelisshowninFigure19
FIGURE19FRONTPANELOFRS-8912-MCSII
InterfaceRS-8912-MCSIIboardhasthefollowingtypesofinterfaces.
ļæ½ConsolePort
Consoleportconnectsthebackgroundmanagementterminal,
onwhichitperformsoperationandmaintenanceofZXR10
8900seriesswitchwithtoolssuchasSuperT erminal.Console
portisaRJ45socket,connectedtoCOMportofbackground
managementterminalthroughserialcable.Oneendofserial
cableconnectingZXR108900seriesswitchisRJ45connector ,
otherendconnectingbackgroundmanagementterminalisDB9
femaleconnector .LineorderisshowninT able4.
ConīædentialandProprietaryInformationofZTECORPORATION23