EKI-1511X/1512X User Manual 30
Dial-in (Use TCP connect to serial port of EKI)
EKI listens for a TCP/IP connection request from the remote host. When a TCP con-
nection is coming, there will have prompt string "RING" shows on serial port site.
After the system prompting the "RING" string, user can use "ATA" command to
accept the connection or just ignore it. After accepted the connection,
EKI will enter data mode.
Dial-out (From serial port connect to specific TCP host target)
User can user the AT Command “ATD <IP>#<TCP port>” to connect to a specific
TCP target host from serial port. When the TCP connection is accepted by the
remote host, EKI will show “CONNECT” string to serial port and enter data mode.
3.5.4 Control Mode Command List
EKI supports the following commands:
AT command Description
ATA Answer
ATD Dial up the IP address#Port No.
ATE ATE0=Echo OFF
ATE1=Echo ON (default)
ATH On-hook
ATZ Reset and Recall user’s settings
AT&F Restore factory’s Default settings
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