Equinox Systems ESP-2 MI Installation And User Manual page 21

commands may be entered on the same line, separated by a space. (If a question mark
is entered on a line with other commands, it is interpreted as AT?. If an ATDT
command is followed by other commands on the same line, ATDT will be
recognized, but the remaining commands on the line will be ignored.)
Information about command mode follows the table.
Table 11: Modem Commands
Command Description
? Help. Displays a list of valid AT commands.
AT? Returns the value of register S0.
ATA Instructs the ESP-2 hub to answer an incoming call.
Initiates a TCP connection to the specified host. A comma, period or nothing
may be used to separate IP address octets. TCP ports may be delimited by a
comma or colon.
For example, the following commands are all valid:
ATDT<ip>[,|:] ATDT 10,100,128,129:3001
<socket> ATDT 10.100.128.129,3001
ATDT 010100128129:3001
The IP address and socket number are required unless they were configured
when the modem emulation connection method was enabled; see Modem
Emulation Connection Method Configurable Items on page 15.
Enables (ATE0) or disables (ATE1) echo mode. The default value is ATE1.
This command is equivalent to the Echo option that is specified when
configuring the modem emulation connection method. If you issue this
ATE
command with a value that differs from the configured option value, the new
value will override the configured value only for this connection. Subsequent
connections will use the configured Echo option value.
Disconnects the network session. The ESP-2 hub will close the active TCP
ATH session and return the appropriate code (No Carrier or 3), depending on the
ATV value.
Returns the ESP-2 hub to data mode. When the hub returns to data mode, it
ATO once again listens for incoming data from the ESP-2 hub at the other end of the
connection. The remote ESP-2 hub will then send any data it may have stored.
Enables (ATQ0) or disables (ATQ1) response codes. The default value is ATQ0.
This command is equivalent to the Response Codes option that is specified
when configuring the modem emulation connection method. If you issue this
ATQ
command with a value that differs from the configured option value, the new
value will override the configured value only for this connection. Subsequent
connections will use the configured Response Codes option value.
Sets the value in register S0, which specifies the number of rings before auto
ATS0=n
answer. The default value is 1.
Equinox ESP-2 MI Serial Hub Installation and User Guide 17