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Table 28 AT Commands

Parameter

Command

Description

Initiate Connection

Command

ATD <destination>

Standard modem dialing command, redefined to

initiate an internet connection to a remote computer.

Indicates the IP address of the target, and optionally

the TCP port number to use for connection. The T or

P option (ATDT or ATDP) can be present and has

no effect.

If present, the IP address must be exactly 12 decimal

digits with 3 for each byte of the address.

If no IP address is given, then the ecable destination

address defined for the port is used.

If the destination TCP port is defined, it is separated

from the IP address by a '#' character, and is 1 to 5

decimal digits.

If TCP port is defined, the ECable destination port

defined for the serial port is used. If the destination

port is 0, the standard Telnet port (23) is used.

If the destination string ends with a semicolon, the

server remains in the command mode, not the data

mode, once a connection is made.

In command mode data is not passed from the

remote computer, so data could be lost if the unit

stays in command mode.

If the connection cannot be attempted, NO CARRIER

status is returned. If the connection attempt fails, NO

ANSWER status is returned.

If the connection succeeds, CONNECT status is

returned.

Echo control

ATEn

If n=0, commands are not echoed.

If n=1, subsequent commands will be echoed.

The default, upon unit reset, is for no echo (ATE0).

Disconnect

ATHn

If n=0, any connection to a remote host is dropped.

Other value of n is ignored.

Return to data mode

ATOn

Exits command mode and places the serial port in

the data mode.

All subsequent data is sent to the network

application, if connected, until an enter command

mode sequence is received. Any value of n is

ignored, if present.

Quiet mode

ATQn

If n = 1, no result codes are returned.

If n = 0, result codes are returned to the local device.

0 is the reset default value.

Verbose mode

ATVn

If n = 0 and not in quiet mode, result codes are

returned in numerical form.

If n = 1, results are returned as text. 1 is the reset

default value.

1 2 ... 67 68 69 70 71 72 73 74 75 76 77 ... 103 104

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