Perle Systems 5500161-40 User Manual
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Serial Port Profiles
DTR Signal Acts as
RI
Specify this option to make the DTR signal always act as a RI signal.
Default: Disabled
RTS Signal Always
On
Specify this option to make the RTS signal always act as a RTS signal.
Default: Enabled
RTS Signal Acts as
DCD
Specify this option to make the RTS signal always act as a DCD signal.
Default: Disabled
RTS Signal Acts as
RI
Specify this option to make the RTS signal always act as a RI signal.
Default: Disabled
DCD Signal Always
On
When you configure the DTR or RTS signal pin to act as a DCD signal, enable
this option to make the DCD signal always stay on.
Default: Enabled
DCD Signal On
when host
connection
established
When you configure the DTR or RTS signal pin to act as a DCD signal, enable
this option to make the DCD signal active only during active communication.
Default: Disabled
Additional modem
initialization
You can specify additional virtual modem commands that will affect how
virtual modem starts. The following commands are supported: ATQn, ATVn,
ATEn, +++ATH, ATA, ATI0, ATI3, ATS0, AT&Z1, AT&Sn, AT&Rn,
AT&Cn, AT&F, ATS2, ATS12, ATO (ATD with no phone number), and
ATDS1.
Appendix C, Virtual Modem AT Commands on page 361
for a more
detailed explanation of the support initialization commands.
Enable Message of
the Day (MOTD)
When enabled, displays the Message of the Day (MOTD) when a successful
virtual modem connection is made.
Default: Disabled
Enable TCP
Keepalive
Enables a per-connection TCP keepalive feature. After the configured number
of seconds, the connection will send a gratuitous ACK to the network peer,
thus either ensuring the connection stays active OR causing a dropped
connection condition to be recognized.
This parameter needs to be used in conjunction with
Monitor Connection
Status Interval
parameter found in the
Serial
,
Advanced
,
Advanced Settings
tab. The interval specifies the inactivity period before "testing" the connection.
Default: Disabled
AT Command
Response Delay
The amount of time, in milliseconds, before an AT response is sent to the
requesting device.
Default: 250 ms