User manual

EKI-1521/1522/1524 User Manual 30
 Flow Control: The EKI-1521/1522/1524 provides four options: None, XOn/XOff,
RTS/CTS, and DTR/DSR.
3.4.2 Setting Virtual COM Operating Mode Parameters
The Advantech serial device servers extend traditional COM ports of a PC to Ether-
net access. Through Ethernet networking, users can control and monitor remote
serial devices and equipment over LAN or WAN. Advantech serial device servers
come with a COM port redirector (Virtual COM driver) that transmits all serial signals
intact. This means that your existing COM-based software can be preserved, without
modifying to fulfill the needs. The Virtual COM mode allows user to continue using
RS-232/422/485 serial communications software that was written for pure serial com-
munication applications.
EKI-1521/1522/1524 comes with COM port redirector (virtual COM driver) that work
with Window NT/2000/XP/Vista(X86) systems. The driver establishes a transparent
connection between host and serial device by mapping the IP of Advantech serial
device server serial port to a local COM port on the host computer.
 Host Idle Timeout (10~255 seconds): The "Host Idle Timeout" setting monitors
the connection between the host and the device. If the "Host Idle Timeout" set-
ting time is reached, the device server will release the resources allocated to the
port mapping. This prevents a stalled host from affecting the connectived
device.
Note When you have finished the configuration of these settings for each category,
please press the “Apply” button in order to make these settings effective on all
serial device servers. (Will restart your serial device server immediately)
Note The default value of "Host Idle Timeout" is 60 seconds.