General-purpose rs232 (2-channel rs232 unit) – IAI America XSEL-QX User Manual
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Appendix
General-purpose RS232 (2-channel RS232 Unit)
(1) Specifications
The 2-channel RS232 unit is a dedicated D-sub, 9-pin RS232 interface.
It can be used when a general-purpose RS232 device is connected.
RS232C Connector Specifications
Item Overview
Detailed
explanation
Applicable connector
D-sub, 9-pin (DTE)
XM2C-0942-502L (OMRON)
Connector name
S1/S2
Maximum connection distance
10M
38400 bps
Applicable interface protocol
RS232
Connected unit
AT-compatible PC, etc.
Half-duplex communication
Connection cable
PC-AT standard 232C cross cable
1
in
(CD)
(Carrier detection: Not used)
2 In RD
Receive
data
(RXD)
3
Out
SD
Transmission data (TXD)
4
Out
ER
Data terminal ready (DTR)
5 In SG
Signal
ground
6
In
DR
Data set ready (DSR)
7
Out
(RS)
(Request to send (RTS): Not used)
8
in
(CS)
(Clear to send (CTR): Not used)
Terminal assignments
9
NC
Not used
(2) Communication Cable
Use a cross cable to connect a PC to the port on the RS232 unit.