User`s manual

OnCell G3111/G3151/G3211/G3251 Series User’s Manual Additional Serial Port Settings
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Data bits (default=8): This field configures the data bits parameter. Note: If data bits is set to 5 bits,
stop bits will automatically be set to 2 bits.
Stop bits (default=1): This field configures the stop bits parameter. Note: If data bits is set to 5 bits,
stop bits will automatically be set to 1.5 bits.
Parity (default=None): This field configures the parity parameter.
Flow control (default=RTS/CTS): This field configures the flow control type.
FIFO (default=Enable): This field enables or disables the 128-byte FIFO buffer. The OnCell
G3111/G3151/G3211/G3251 provides FIFO buffers for each serial port, for both the Tx and Rx
signals. Note, however, that you should disable the port’s FIFO setting if the attached serial device
does not have a FIFO buffer of its own. This is because a serial device that does not have its own
buffer may not be able to keep up with data sent from the OnCell’s FIFO buffer.
Interface (default=RS-232): You may configure the serial interface to RS-232, RS-422, RS-485
2-wire, or RS-485 4-wire.
Port Data Buffering/Log
The OnCell G3111/G3151/G3211/G3251 supports port buffering to prevent the loss of serial data
when the Cellular or Ethernet connection is down. Port buffering can be used in Real COM,
Secure Real COM, Reverse Real COM, Secure Reverse Real COM, RFC2217, TCP Server, Secure
TCP Server, TCP Client, Secure TCP Client, and SMS Tunnel modes. For other modes, the port
buffering settings will have no effect.
Port buffering (default=Disable): You may enable port buffering by setting this field to Enable.
Serial data logging (default=Disable): If this field is set to Yes, the OnCell
G3111/G3151/G3211/G3251 will store data logs on the system RAM for all serial ports. Note that
this data is not saved when the OnCell G3111/G3151/G3211/G3251 is powered off.