US Robotics 56 K SOFTMODEM - COMMAND REFERENCE REV 1 Manual de usuario descargar pdf (Pagina 77)

56K Softmodem

Command Reference

- 69

Test and Debug AT Command

The following command is used for testing and debugging only. It is not meant for

general use.

#UD—Unimodem Diagnostics

This command is defined by Microsoft ’s* unimodem diagnostics command

specification. The 56K Softmodem implements a subset of the parameters in that

specification.

#UD is an action command. It does not take parameters. It should be the last

command in the command line. The modem logs aspects of its operation for each

call and saves these results in volatile memory until cleared by one of the

following events. These results are not cleared by changing DTR, V.24 circuit

108.2, &D0, &D1, or &D2.

Power off (or D1 or D3 state entered).

Hard reset (e.g., negate DTR with &D3 set, reset button).

Soft reset = ATZ or AT&F.

ATD or ATA command issued.

Automatic answer (e.g., set register S0 > 0 and ring detected). In

response to this command, the modem reports one or more lines of information

text. Information text format is defined in ITU-T recommendation V.253. Each line

is both preceded and terminated by a <CR><LF> pair. Note that, as per V.253, CR

and LF characters may be changed by writing new values to the contents of

registers S2 and S3 respectively.

DIAG <token key = value [[key = value [key = value]] . . . >

where:

DIAG = 5 characters, hexadecimal 44, 49, 41, 47, 20.

’<’ = left angle bracket, hexadecimal 3C.

’=’ = equal sign, hexadecimal 3D.

’>’ = right angle bracket, hexadecimal 3E.

token = unique 32-bit hexadecimal string, i.e., 2A4D3263.

key = one- or two-digit hexadecimal number. See Table 4-16: #UD Last Call

Status Report Format on page 71.

value = any string.

Unless otherwise noted, all values are hexadecimal numbers. Any numeric values

from tables in ITU-T recommen

dation V.58 are converted to hexadecimal. Multidigit values are reported MSD

first. Leading zeros may be deleted. The following table includes all items listed in

Microsoft’s specification for the #UD command. The items that have an X in the

Implemented column have been implemented in this release.

Please refer to Microsoft ’s unimodem diagnostics command specification for

more information.

1 2 ... 72 73 74 75 76 77 78 79 80 81 82 ... 107 108

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