RS232
TheRS‐232standardusessingle endedsignalsonaDB‐25connector.TheadapterDB‐25connector
followsthisstandardwhentheportjumpersareinstalledforRS‐232.Useanystraightthrough25
conductorDB‐25MtoDB‐25Fcable(suchasMicroGatePart#CMF000)toconnecttheadapter
connectortothecommunicationsequipment.
ThemaximumdataratesupportedbytheadapterwhenusingRS‐232is128Kbps.Cablelengthand
signalloadingmayreducethemaximumusabledataratefromthisvalue.
RS‐232DB‐25MaleDTE
SignalName ElectricalDesc Pin# Direction
Earth/ShieldGround 1
TxD,TransmitData RS‐232/V.28 2 Output
RxD,ReceiveData RS‐232/V.28 3 Input
RTS,RequesttoSend RS‐232/V.28 4 Output
CTS,CleartoSend RS‐232/V.28 5 Input
DSR,DataSetReady RS‐232/V.28 6 Input
SignalGround 7
DCD,DataCarrierDetect RS‐232/V.28 8 Input
TxC,TransmitClock RS‐232/V.28 15 Input
RxC,ReceiveClock RS‐232/V.28 17 Input
LL,LocalLoopbackControl RS‐232/V.28 18 Output
DTR,DataTerminalReady RS‐232/V.28 20 Output
RL,RemoteLoopbackControl RS‐232/V.28 21 Output
RI,RingIndicator RS‐232/V.28 22 Input
AuxClk,DTEClockOutput RS‐232/V.28 24 Output
Figure5 RS‐232Cable(Part#CMF000)