Moxa Technologies NPort 6000 Series, Руководство пользователя

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NPort 6000 Series Configuring Serial Port Operation Modes
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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=Disable): If you select Enable, 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.
Ethernet Modem Mode
The NPort 6000 accepts the AT command ATD IP address:TCP port (for example, IPv4 : ATD
192.127.168.1:4001 / IPv6 : ADT [fe80::290:e8ff:fe0d:b0fb]:65500 ) from the serial port and then requests
a TCP connection from the remote Ethernet Modem or PC. Here IP address is the IP address of the remote
Ethernet modem or PC, and TCP port is the TCP port number of the remote Ethernet modem or PC. Once the
remote unit accepts this TCP connection, the NPort 6000 will send out the “CONNECT baud” signal via the
serial port and then enter data 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.
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.
Dial-in
The NPort 6000 listens for a TCP/IP connection request from the remote Ethernet modem or host. The NPort
6000’s response depends on the ATS0 value, as follows.
ATS0=0: The NPort 6000 will temporarily accept the TCP connection and then send the “RING” signal out
through the serial port. The serial controller must reply with “ATA” within 2.5 seconds to accept the connection
request, after which the NPort 6000 enters data mode. If no “ATA” command is received, the NPort 6000 will
disconnect after sending three “RING” signals.