3 connecting the dx, 3 connecting the dx -4, Rs-232 connection procedure – Yokogawa Removable Chassis DX1000N User Manual
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2-4
IM 04L41B01-17E
2.3 Connecting the DX
Connecting the cable
Connect a cable to the serial port on the DX rear panel.
RS-232 Connection Procedure
Connect a cable to the 9-pin D-sub RS-232 connector.
Connector pin arrangement and signal names
2
1
3 4 5
6 7
9
8
(Rear panel)
Each pin corresponds to the signal indicated below.
The following table shows the signal name, RS-232 standard, JIS, and ITU-T standard
signals.
Pin
Signal Name
Name
Meaning
JIS
ITU-T
RS-232
2
RD
104
BB(RXD)
Received data
Input signal to the DX.
3
SD
103
BA(TXD)
Transmitted data
Output signal from the DX.
5
SG
102
AB(GND)
Signal ground
Signal ground.
7
RS
105
CA(RTS)
Request to send
Handshaking signal when
receiving data from the PC.
Output signal from the DX.
8
CS
106
CB(CTS)
Clear to send
Handshaking signal when
receiving data from the PC.
Input signal to the DX.
* Pins 1, 4, 6, and 9 are not used.
Connection
• Signal direction
PC
DX
RS [Request to send...Ready to receive]
SD [Send data]
RD [Received data]
2
3
8
7
CS [Clear to send...Ready]