AT&T 7400B Plus User Manual page 45

DEFINITY Communications System
7400B Plus Data Module
User´s Guide
Remote Site Use The 7400B Plus can be used at a remote site as a dedicated service
device to answer incoming data calls, send data to a remote end
device, and then hang up. For example, you may wish to provide
access to a printer from a remote site.
The following is a typical command line you might use for setting
up this operation (spaces are used here for readability, but are not
required):
AT &F &C1 &D2 E0 Q1 S0=1 &W0 &Y0 (
Following the AT prefix, the commands in the example produce
the following results:
&F resets the options to the factory defaults.
&C1 sets the Data Carrier Detect (DCD) circuit of the 7400B
Plus to operate according to the EIA standard.
&D2 sets the 7400B Plus to go on hook when an on-to-off
transition is detected on the Data Terminal Ready (DTR) input,
disconnecting the call
E0 turns off the echo.
Q1 turns off the result codes that would be the normal
responses of the 7400B Plus to commands that it receives. (For
example, the ''CONNECT'' message which is displayed when
answering a call would interfere with the printer.)
S0=1 turns on the automatic answer feature and causes the
7400B Plus to answer an incoming data call on the first ring.
&W0 causes the current configuration to be stored in data
profile storage location 0.
&Y0 selects the configuration stored in data profile storage
location 0 to become the current configuration each time the
7400B Plus is powered on
Refer to Appendix A, "AT Command Set," for a complete
description of each command used in this section.
CHAPTER 3: CONFIGURATION AND OPERATION
Page 3-13
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