User`s manual
NPort 6000 Series User’s Manual Configuring Serial Port Operation Modes
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ATTENTION
When establishing a Pair Connection between two serial ports on two different NPort 6000
servers, make sure that if one side is configured for data encryption, the other side is also set up
for data encryption (i.e., both are yes or both are no).
Destination IP address: The Pair Connection Master will contact the network host that has the
specified IP address. The port will default to 4001. Make sure the port numbers match on both the
Pair Connection Master and Slave.
Pair Connection Slave Mode
TCP alive check time (default=7 min): This field specifies how long the NPort 6000 will wait for
a response to “keep alive” packets before closing the TCP connection. The NPort 6000 checks
connection status by sending periodic “keep alive” packets. If the remote host does not respond to
the packet within the time specified in this field, the NPort 6000 will force the existing TCP
connection to close. For socket and device control modes, the NPort 6000 will listen for another
TCP connection from another host after closing the connection. If TCP alive check time is set to 0,
the TCP connection will remain open even if there is no response to the “keep alive” packets.
Secure (default=No): If you select Ye s , data sent through the Ethernet will be encrypted with SSL.
TCP port (default=4001): This is the TCP port number assignment for the serial port on the NPort
6000. It is the port number that the serial port uses to listen to connections, and that other devices
must use to contact the serial port. To avoid conflicts with well known TCP ports, the default is set
to 4001. Make sure the port numbers match on both the Pair Connection Master and Slave.