NPort 6000 Series Configuring Serial Port Operation Modes
LPD PRN 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.
Queue name (RAW): This field optionally specifies the print queue’s name (in RAW mode)
Queue name (ASCII): This field optionally specifies the print queue’s name (in ASCII mode)
Append from feed (default=Disable): This field instructs the port to send a line feed in between print jobs,
rather than continue where the last print job left off. This may be necessary for some applications.
Dial In/Out Applications
PPP Mode
PPP provides standard PPP service for both dial-in and dial-out.
Destination IP address: This is the IP address of the remote dial-in/ dial-out server.
Source IP address: The Source IP address is IP address assigned to this serial port.
IP netmask: The IP netmask defines the netmask, also known as the subnet mask, for the PPP connection
TCP/IP compression (default=Disable): The setting of this field depends on whether the remote user’s
application requests compression.
Inactivity time (default=0 ms): This field specifies the idle time setting for auto-disconnection. A setting of
0 ms will cause the port to remain connected even if idle.
Link quality report (default=Disable): Setting this field to Enable allows the NPort 6000 to disconnect a
connection if the link noise exceeds a certain threshold.