Chapter4HardwareBoard
RJ45
SignalBackground
computerDB9
Signal
4
GND
5
GND
6T232RX3
computerTX
ļæ½10/100Base-TXEthernetInterface
10/100Base-TXEthernetinterface(MGT)onthecontrolswitch-
ingboardisthemanagementinterfaceconnectingbackground
thatisusedastheswitchoutbandNMinterface.
ZXR108900seriesswitchMCShasa10/100Base-TXEthernet
interface.Characteristicsof10/100Base-TXEthernetinterface
areshowninTable13.
TABLE13FEATURESOF10/100BASE-TXETHERNETINTERFACE
InterfaceType
Characteristics
10/100Base-TX
IncompliancewithIEEE802.3/802.3u
standard
RJ45connector
UsingUTP5,themaximumtransmission
distanceis100m
Note:
ļæ½ThereisnoSDslotonRS-8908-MCSboard.Thesystemsoft-
wareandconīægurationinformationisstoredinFLASH.
ļæ½ForZXR108908,whenRS-8908-MCSisused,lineinterface
cardsRS-89S1-4XGE-XFPandRS-89S2-4XGE-XFPcannotbe
used.
LEDsTherearetwenty-eightLEDsinthefrontpanelofRS-8908-MCS
controlswitchingboard.FunctionsoftheseLEDsaredescribedin
.
TABLE14FUNCTIONDESCRIPTIONOFLEDS
LEDs
StateDescription
RUN
Off:interfaceboardofcorrespondinglineis
faultyoroff-position
Flash:interfaceboardofcorrespondinglineis
workingnormally
1~8
ALM
Off:interfaceboardofcorrespondingline
alarmisclearedorisoff-position
On:correspondinglineinterfacecardalarms
ConīædentialandProprietaryInformationofZTECORPORATION29