AT

 

Function

Result

Command

 

Code

 

 

 

 

 

 

Identification command

 

 

I0 reports product code. Example: Digi Device server

 

 

I1 reports 255

 

 

I2 reports “OK”

 

 

I3 reports “OK”

OK n=0 or 9

ATIn

I4 reports DIGI DS_TS

ERROR

Otherwise

 

I5 reports “OK”

 

 

 

I6 reports “OK”

 

 

I7 reports “OK”

 

 

I8 reports “ERROR”

 

 

I9 reports “ERROR”

 

ATLn

Accepted but ignored.

OK n=0 or 3

ERROR

 

 

 

Otherwise

ATMn

Accepted but ignored.

OK n=0 or 3

ERROR

 

 

 

Otherwise

ATNn

Accepted but ignored.

OK n=0 or 1

ERROR

 

 

 

Otherwise

 

Return to On-Line Data Mode.

 

 

This command determines how the modem will enter the on-line data mode.

 

 

If the modem is in the on-line command mode, the modem enters the on-

OKn = 0 or 1 and

 

line data mode. If the modem is in the off-line command mode (no connec-

a connection

ATOn

tion), ERROR is reported.

exists.

O0Enters on-line data mode. Handling is determined by the Call Establish-

ERROR

 

 

Otherwise or if

 

ment task. Generally, if a connection exists, this command connects the

 

not connected.

 

DTE back to the remote modem after an escape (+++).

 

 

 

O1Same as above

 

ATP

Accepted but ignored.

OK

 

Quiet Results Codes Control command.

 

 

The command enables or disables the sending of the result codes to the

OK n=0 or 1

ATQn

DTE according to the parameter supplied. The parameter value, if valid, is

ERROR

written to S14 bit 2.

 

Q0

Enables result code to the DTE (Default).

Otherwise

 

 

 

Q1

Disables result code to the DTE

 

 

Read/Write S- Register.

 

ATSn

n

Establishes S-register n as the last register accessed

 

n=v

Sets S-Register n to the value v.

 

 

 

 

n?

Reports the value of S-Register n.

 

ATT

Accepted but ignored..

OK

 

Result Code Form. This command selects the sending of short-form or long-

 

 

form codes to the DTE. The parameter, if valid, is written to S14 bit 3.

OK n=0 or 1

ATVn

V0 Enables short-form (terse) result codes. Line feed is not issues before a

ERROR

 

short-form result.

Otherwise

 

V1 Enables long-form (verbose) results codes (Default).

 

ATWn

Accepted but ignored.

OK n=0 to 3

ERROR

 

 

 

Otherwise

38

Chapter 9 Modem Emulation

Page 38
Image 38
Digi W manual Function Result, Atp