SmartFlex
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Item Description
Mode Mode of connection:
• TCP server – The router will listen for incoming TCP connection
requests.
• TCP client – The router will connect to a TCP server on the
specified IP address and TCP port.
Server Address When set to TCP client above, it is necessary to enter the Server ad-
dress and TCP port. IPv4 and IPv6 addresses are allowed.
TCP Port TCP/UDP port used for communications. The router uses the value for
both the server and client modes.
Inactivity Timeout Time period after which the TCP/UDP connection is interrupted in case
of inactivity.
Table 66: Expansion Por t Configuration 1
If you mark the Reject new connections check box, then the router rejects any other con-
nection attempt. This means that the router no longer supports multiple connections.
If you mark the Check TCP connection check box, the router verifies the TCP connection.
Item Description
Keepalive Time Time after which the router verifies the connection.
Keepalive Interval Length of time that the router waits on an answer.
Keepalive Probes Number of tests that the router performs.
Table 67: Expansion Por t Configuration 2
When you mark the Use CD as indicator of the TCP connection check box, the router uses
the carrier detection (CD) signal to verify the status of the TCP connection. The CD signal
verifies that another device is connected to the other side of the cable.
CD Description
Active TCP connection is enabled
Nonactive TCP connection is disabled
Table 68: CD Signal Description
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