Longshine LCS-8056C2 - Manual (Page 78)

Commands for Host-Processed Modems Reference Manual
3-56 Conexant 100498E
Command Syntax
In response to this command, the modem will report one or more lines of information text as
defined below. Information text format conforms to V.250; each line is preceded by a
<CR><LF> pair, and terminated by <CR><LF>. (CR and LF characters may be changed by
writing new values to the contents of registers S3 and S4, respectively.)
The modem may generate a single line or multiple lines, followed by a standard OK final
result code. For example, if call setup failed, only that result is useful. Each information text
line is formatted as follows, including one or more key=value pairs:
Syntax
#UD
Response
DIAG <token key=value [[key=value] [key=value]] …>
Defined Values
DIAG 5 hexadecimal characters (44h, 49h, 41h, 47h, 20h)
< Left angle bracket (less than sign) (3Ch)
token Unique 32-bit hexadecimal string 2A4D3263(32h, 4h1, 34h, 44h,
33h, 32h, 36h, 33h)
space space character (20h)
Key One- or two-digit hexadecimal number (see Key in Table 3-3)
= Equal sign (3Dh)
Value Any string as defined below (Table 3-3 - as Table 3-8 appropriate)
> Right angle bracket (greater than sign) (3Eh)
Unless otherwise noted, all values are hexadecimal numbers. Any numeric values from tables
in ITU V.58 are converted to hexadecimal. Multi-digit values are reported MSD first. Leading
0’s may be deleted. See examples in Table 3-12.
Monitoring an active connection
This command is intended for use after call termination. However, codes are defined so that a
modem can respond before the first call is placed, and during a call for live monitoring
purposes. For example, key 60, call termination, has value 1 defined, indicating that the call is
still in progress.
There are at least two ways to do this. First, the DTE could switch the modem to On-Line
command state, issue the command, capture the responses and then issue an ATO command.
For smoother on-line monitoring, in-band means defined in ITU V.80 are recommended if
available in the modem. If V.80 methods are used, each response line shall be a separate
extended in-band message.
Notes for Tables
1. The modem may insert a delay (e.g., 10 ms) between information text lines.
2. The code tables include values for data and fax calls. Some of the codes are applicable
only to data calls (e.g., data compression), some are applicable only to call origination
(e.g., busy, answering signal detection) and some are applicable only to the answering
modem (e.g., calling signal detection).