
48 - Connecting Serial Devices
DeviceMaster PNIO | UP User Guide
: 2000639 Rev. A
Connecting Serial Devices
Screw Terminal (8)
Null-Modem Cables
(RS-232)
An
RS-232 null-modem
cable is required for
connecting DTE devices.
Screw Terminal (8)
Null-Modem Cables
(RS-422)
An RS-422 null-modem cable is
required for connecting DTE
devices.
Screw Terminal (8)
Straight-Through
Cables (RS-232/485)
RS-232 or RS-485 straight-
through cables are used to
connect modems and other
DCE devices.
RS-232 Null-Modem Cable
CD
DSR RI
DTR
RTS
TxD
RxD CTS
DCD DTR
RI
DSR
CTS
RxD
TxD RTS
1
4
9
6
8
3
7
8
20
22
6
5
3
2
4
DB9
DB25
2
CD DSR RI DTR
RTS
TxD
RxD CTS
RxD+
RxD-
TxD- TxD+
8
2
3
7
5
3
2
4
DB9
DB25
RS-422 Null-Modem Cable
RS-232/485 Straight-Through Cable
CD
DSR RI
DTR
RTS
TxD
RxD CTS
DCD DSR RI
DTR
RTS
TxD
RxD CTS
1
6
9
7
2
8
6
22
20
4
2
3
5
DB9
DB25
3
4
8
or
TRxD-
or
TRxD+
Содержание 99531-9
Страница 1: ...PROFINET IO User Guide ...
Страница 60: ...60 Configuring a Serial Port DeviceMaster PNIO UP User Guide 2000639 Rev A Configuring a Serial Port ...
Страница 88: ...88 IO Data Handling DeviceMaster PNIO UP User Guide 2000639 Rev A IO Data Handling ...
Страница 138: ...138 Managing the DeviceMaster DeviceMaster PNIO UP User Guide 2000639 Rev A Managing the DeviceMaster ...
Страница 148: ...148 RedBoot Procedures DeviceMaster PNIO UP User Guide 2000639 Rev A RedBoot Procedures ...