Lucent Technologies AT&T 7400B User Manual

Page 70

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DEFINITY Communications System

APPENDIX B: S-REGISTERS

7400B Data Module

User’s Guide

Page B-5

Register:

Description:

Range of

Values:

Storable:

Comments:

See Also:

S2

This S-register stores the ASCII value of the escape sequence
character.

Value may be 000 through 127 (see comments); factory-default setting
is 043, the ASCII code for a plus sign (+).

no

Setting the value greater than 127 will disable escape sequence
detection, in which case the escape sequence cannot be used to move
to command mode. The operation of the Data Terminal Ready (DTR)
circuit, set by the

&D

command, can still be used to move to command

state without disconnecting the call.

Chapter 4, “Operation and Configuration”; AT command

&D

in

Appendix A.

Register:

Description:

Range of

Values:

Storable:

Comments:

See Also:

S3

This S-register stores the ASCII value of the carriage return character.

Value may be 000 through 127; factory-default setting is 013, usually
output by the Enter or Return key or the Ctrl-M key combination
from a data terminal.

no

This character serves as the command terminator on an AT command

line. It is also output following all result codes.

Chapter 4, “Operation and Configuration.”

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