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Installation
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CPS-PC341MB-ADSC1-9201 Reference Manual (Hardware)
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58
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4.
RS-232C
RS-232C Cable
When using an RS-232C interface, different cables are required depending on the type of device to
which you are connecting (computer or modem, etc.).
Check the requirements of the external device and select either a straight-through or crossed (null
modem) cable as appropriate.
If special treatment of the signal lines in the connector is required, ensure that this is done in
accordance with the specifications.
*Refer to
in the
page 25
for details of the RS-232C serial port and pin
assignment.
Connecting to an external device
Example Connection to a Modem
Example Connection to a PC
TxD
RxD
RTS
CTS
DTR
DSR
SG
TxD
RxD
RTS
CTS
DTR
DSR
SG
(Transmit Data)
(Receive Data)
(Request to Send)
(Clear to Send)
(Data Terminal Ready)
(Data Set Ready)
(Signal Ground)
External device
TxD
RxD
RTS
CTS
DTR
DSR
SG
TxD
RxD
RTS
CTS
DTR
DSR
SG
External device