Rfc2217 Mode; Figure 4.8 Rfc2217 Mode - Advantech EKI-1511 Series User Manual

Command
<LF><CR> RING ddd.ddd.ddd
<LF>< CR>
<LF><CR> DISCONNECT
<LF><CR>
<LF><CR> ERROR <LF><CR>
<LF><CR> FAIL <LF><CR>
4.5

RFC2217 Mode

RFC2217 mode is similar to virtual COM mode in that a driver is used to establish a
transparent connection between a host computer and a serial device by mapping the
serial port on EKI-1511 Series devices to a local COM port on a host computer.
RFC2217 defines general COM port control options based on the Telnet protocol.
Third party drivers supporting RFC2217 are widely available on the Internet and can
be used to implement virtual COM mapping to the serial port of your device.
Function
Detect the connection request from other device,
which IP address is ddd.ddd.ddd.ddd.
Disconnect from other device
Incorrect commands
If you issue an ATDT command and can not connect
to the device, it will response "FAIL".

Figure 4.8 RFC2217 Mode

40 EKI-1511 Series User Manual