Atop Technology SW550XC User manual User Manual
Page 60
Industrial Wireless Serial Device Server Series
SW550xC User Manual V 1.0
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Virtual COM, the Virtual COM protocol is enabled on the device to
communicate with a virtualized port from the client. It is possible to create a
Virtual COM port on Windows/Linux in order to communicate with the device
as a Client.
Reverse Telnet, used to connect the device and another serial device
(usually a Terminal Server) with a Telnet program. Telnet programs in
Windows / Linux usually require special handshaking to get the outputs and
formatting show properly. The SW550xC series will interact with those special
commands (CR/LF commands) once Reverse Telnet is enabled.
Enter the Local Port, this option specifies the port number that the server should listen
to; it is used by the client to connect to the server. Default local port is 4660.
Go to
for more information on this setting. For serial settings, go to
Sec. 4.6.2
. For Advanced settings, go to
Sec.4.6.3
Scroll to the bottom of the page and click on “Save & Apply” button to save the
changes.
Other important variables to consider are:
IP Filter, enables the Source IP option below to block an IP address from accessing the COM
port.
Source IP,
specifies the device’s Source IP which will be transmitting data to our Server. In
other words, our Server will only allow data from this IP to flow (hence its own name
implies Source IP); only one source is allowed.
Maximum Connection, the number of devices/clients (max. of 4 clients), to be served is set in
this section.
Response Behavior, in which we will have as options:
Request & Response Mode, it determines how the device will proceed when it receives
requests from connected hosts. Under this mode, the port will hold requests from all
other connected hosts until the serial device replies or the Response Interval
timeout takes into effect to discard it; however, unrequested data sent from the
serial device would be forwarded to all connected hosts.
Reply to requester only, the port will reply to the connected host who requested
the data only.
Reply to all, a reply is sent to all connected hosts.
Transparent mode, the port will forward requests from all connected hosts to the serial
device immediately and reply to all connected hosts once it receives data from the
serial device.
Note: LINK1 is associated with COM1; LINK2 is associated with COM2, and so on.