Omron SYSMAC CS1W-SCB41-V1 Operation Manual page 757

Hayes Modem AT Command Protocol
Connections
The connections when using the Hayes Modem AT Command Protocol is shown below.
RS-232C Connection
Serial Communications Board
(CS Series only)
Serial Communications Unit
(CS/CJ Series)
Compatible Modems
Although most of the sequences in this protocol can be used regardless of modem, the sequences Initialize
Modem (specialized) and Dial sequences can be used only for the following Modems:
• MD24FB10V (OMRON Modem)
• MD144FB5V (OMRON Intelligent Modem)
• ME1414BIII, ME2814BII (OMRON FAX/DATA Modem)
For other modems, create a modem initialization sequence using the general-purpose Initialize Modem
sequence and dial using the Data Communications Sequence (Sequence No. 553).
728
Telephone line
Modem
Modem: D-sub
25-pin (female)
FG
SD
RD
RTS
CTS
DSR
SG
CD
ST2
RT
DTR
CI
ST1
Modem
Serial Communications Board/Unit
D-sub 9-pin (female)
FG
SD
RD
RTS
CTS
5V
DSR
DTR
SG
Appendix Q
1
6
9
5