116
394149/C
specicationsfortheactual"shuntcapacitance".Acommongureis47.5pF/m,which
givesamaximumcablelengthofabout50meters.
Note
EventhoughastandardexistforRS-232pinconguration,certainmanufacturermaystill
choosetheirownconnectorpinsforthevarioussignalsused.InordertomaketheRS-232
connectiontoyourperipheraldeviceworkproperly,youmustalwaysconsulttherelevant
instructionsprovidedbythedevicemanufacturer.
Pinassignments
MoxaCP114EL-I9-pinD-connectorconverter
PinRS-232RS-422RS485(4–wire)RS485(2–wire)
1DCD
TXD-(A)TXD-(A)
2
RxD
TXD+(B)TXD+(B)
3
TxD
RXD+(B)RXD+(B)Data-(B)
4
DTR
RXD-(A)RXD-(A)Data-(A)
5
GNDGNDGNDGND
6DSR
7
RTS
8CTS
9
Minimumcablerequirements
•Conductors:2x5x0.5mm²
•Screen:Overallbraided
•Voltage:60V
•Maximumouterdiameter:Denedbytheplugs
Ifyouneedtoinstallaverylongseriallinecable,increasethecrosssection.
Relatedtopics
Aboutseriallines,page135
SimradEK80