Specifications
DeviceNet RS-232 Interface Module16
Publication
17705.6 - June 1996
Using the Interface Module with a Portable Computer
Some portable computers have power-saving modes that power down the serial
ports during inactive periods, occurring most often when batteries power the PC.
The serial-port power-saving feature causes the RS-232 interface module to go
of
fline and to cease communication with DeviceNet Manager
. Y
ou should
disable the serial-port power-saving feature to use the RS-232 interface module
with DeviceNet Manager
.
If you experience a problem with the RS-232 interface module going offline
unexpectedly, use the setup program of your portable computer to disable the
serial-port power-saving feature.
Connecting Cables via RS232 to a Modem
You can connect a 1770-KFD module to these standard dial-up modems:
• DTE-controlled answer
• auto-answer
DCD
RXD
TXD
DTR
GND
DSR
RTS
CTS
RI
1
2
3
4
5
6
7
8
9
8
3
2
20
7
6
4
5
22
DCD
RXD
TXD
DTR
GND
DSR
RTS
CTS
RI
1
2
3
4
5
6
7
8
9
DCD
RXD
TXD
DTR
GND
DSR
RTS
CTS
RI
1
2
3
4
5
6
7
8
9
female DB9
connector
male DB9
connector
DeviceNet
RS232
Interface
Modem
RS232
Port
female DB9
connector
male DB25
connector
DeviceNet
RS232
Interface
Modem
RS232
Port
DCD
RXD
TXD
DTR
GND
DSR
RTS
CTS
RI