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MiiNePort E2/E3
8 data bits, 1 stop bit, and no parity. In this case, the total number of bits needed to send one character is 10
bits, and the time required to transfer one character is
(10 bits / 1200 bits/s) × 1000 ms/s = 8.3 ms.
Since it requires about 9 ms to send one character, the Force transmit should be 10 ms or more to have any
effect. At 9 ms or less, the module will simply pack every character as it is received, which would be the same
as if delimiter characters or a Force transmit time were not specified.
ATTENTION
If you want to send a series of characters in the same packet, the serial device attached to the MiiNePort
should send that series of characters during a time interval less than the Force transmit timeout for the
MiiNePort, and the total length of data must be less than or equal to the MiiNePort's internal buffer size. The
serial communication buffer size for the MiiNePort is 1 KB per port.
Ethernet Modem Mode
Dial-in
The MiiNePort listens for a TCP/IP connection request from the remote Ethernet modem or host. The
MiiNePort's response depends on the ATS0 value, as outlined below.
ATS0=0 (default)
The MiiNePort 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 MiiNePort enters data mode. If the ATA command is not received, the MiiNePort will disconnect after
sending three RING signals.
ATS0≧1
The MiiNePort will accept the TCP connection immediately and then send the CONNECT <baud> command to
the serial port, in which <baud> represents the baudrate of the MiiNePort's serial port. Subsequently, the
MiiNePort will immediately enter data mode.
Dial-out
The MiiNePort accepts the AT command ATD <IP>:<TCP port> from the serial port and then requests a TCP
connection from the remote Ethernet Modem or PC. This is where <IP> 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 MiiNePort will send out the CONNECT <baud> signal via the serial port
and then enter data mode.
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Web Console Configuration
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