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.
See Line Services on page 57 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.