Modem Commands - Equinox Systems ESP-2 MI Installation And User Manual

Table 10: Modem Emulation Connection Method Configurable Items (Continued)
Item Description
Specifies whether text or numeric codes will be sent to the serial device in
response to modem AT commands and how unknown commands will be
handled. Valid values are:
ATV0 - text codes will be used; unknown commands will cause an error
ATV1 - numeric codes will be used; unknown commands will cause an error
ATV2 - numeric codes will be used; unknown commands will be discarded
Verbose
ATV3 - text codes will be used; unknown commands will be discarded
Response
The default value is ATV0.
Table 12 on page 19 lists the numeric and text codes.
This option is equivalent to issuing an ATV modem command. If an ATV
command is issued with a different value, the new value will will be used during
that connection but it will not replace this configured value. The configured
Verbose Response value will be used for subsequent connections.
Specifies whether response codes will be displayed on the serial device. Valid
values are:
ATQ0 - response codes will be displayed (enabled)
ATQ1 - response codes will not be displayed (disabled)
Response
The default value is ATQ0 (enabled).
Codes
This option is equivalent to issuing an ATQ modem command. If an ATQ
command is issued with a different value, the new value will be used during
that connection but it will not replace this configured value. The configured
Response Codes value will be used for subsequent connections.
Enables or disables monitoring of the DCD signal. When enabled, if the
inbound DCD signal is logically low, the ESP-2 hub will not allow the TCP
Monitor DCD session to be created. If the inbound DCD signal changes from logically high to
low while a session is active, the connection will be closed.
The default value is disabled.
Specifies the length of time accumulated serial data should be buffered before
being sent to the remote server. Valid values are 0-65535 hundredths of a second.
For example, a value of 100 indicates that once serial data is received, the
Serial ESP-2 serial hub will buffer the data until 1 second (100 hundredths of a
buffering second) has elapsed, at which time all data will be sent.
A 0 value indicates that data will be sent as soon as it is available.
The default value is 0 (send immediately). If the buffer becomes half full, the
time is ignored and the data is sent.
Specifies the length of time before the TCP session is disconnected if there is
no activity. Valid values are 0-65535 seconds.
Inactivity time-
For example, a value of 60 indicates the session will be disconnected if there is
out
no activity for a period of 60 seconds.
A 0 value disables the inactivity time-out. The default value is 0 (disabled).

Modem commands

Table 11 lists the supported AT modem commands. All other AT commands will be
ignored or cause an error, depending on the configured response code and verbose
response settings. With the exception of the ? and ATDT commands, multiple
16 Equinox ESP-2 MI Serial Hub Installation and User Guide