Configuring lines – Perle Systems DS1 User Manual
Page 54
Configuring Lines
54
IOLAN Device Server User’s Guide, Version 1.0
Configuring Lines
When you configure the Device Server
Line
, you are specifying how the port will be used and
accessed. You can always make changes to
Line
parameters, click the
Apply
button, and then select
Tools
,
Kill Line
to test your changes. However, you still must select
Tools
,
Download
Configuration to Unit
and
Tools
,
Reboot Server
to make your changes permanent and take effect.
Configure the appropriate parameters:
Service
Defines the
Line Service
, which determines how the line will be used.
for more information about configuring each
Line Service
.
Line Name
Provide a name for the line so it can be easily identified. The
Remote Port
Buffering
logging feature uses the
Line Name
when creating a file on the
remote NFS server.
Serial Interface
Specifies the type of line that is being used with the Device Server. Select
either EIA-232, EIA-422, or EIA-485.
Speed
Specifies the baud rate of the line; keep in mind that speed is affected by the
length of the cable.
Duplex
Specify whether the line is
Full Duplex
(communication both ways at the same
time) or
Half Duplex
(communication in one direction at a time).
TX Driver Control Used with a
EIA-485
serial interface, if your application supports
RTS
(Request
To Send), select this option. Otherwise, select
Auto
. Default is
Auto
.
Echo Suppression This parameter applies only to
EIA-485
Half Duplex
mode. All characters will
be echoed to the user and transmitted across the serial ports. Some EIA-485
applications require local echo to be enabled in order to monitor the loopback
data to determine that line contention has occurred. If your application cannot
handle loopback data, echo suppression should be
On
. The default is echo
suppression
Off
.
Monitor DSR
Specifies whether the RS-232 signal DSR (data set ready) should be monitored.
This is used with modems or any device that sends a DSR signal. When it is
monitored and the Device Server detects a DSR signal, the line service is
started. Default is
Off
. If both
Monitor DCD
and
Monitor DSR
are enabled,
both signals must be detected before the line service is started.