Nortel Circuit Card, Installation Manual, Page: 488 / 908

Page 488 of 906 NT7D16 Data Access card
553-3001-211 Standard 3.00 August 2005
Baud rate detection
Every command line begins with Baud rate detection. This phase allows the
DAC to determine the user equipment baud rate. During this phase, the DAC
accepts only the ASCII “A,” or “a” characters. Once a valid autobaud
character is detected, the DAC echoes the parity bit character at the baud rate
detected.
Note: If Hayes dialing is desired, you must enter the character “A” or
“a” BEFORE the <CR>. If Carriage Return (<CR>) is entered before this
Hayes dialing command, you will be placed in keyboard dialing mode.
Parity detection
Once the baud rate has been determined, the DAC accepts only the ASCII
characters “T,” “t,” or “/.” If the Repeat character “/” is entered, the previous
command is executed. If “T,” or “t” is entered, the DAC uses its parity and
the parity of the preceding A (a) to determine the user's parity. This parity is
used on the following messages and prompts associated with the command
lines.
BUSY 7 Far end is busy
NO ANSWER 8 Far end does not answer
CONNECT 1200 5 Session starts at 1200 baud
CONNECT 2400 10 Session starts at 2400 baud
CONNECT 4800 11 Session starts at 4800 baud
CONNECT 9600 12 Session starts at 9600 baud
CONNECT 19200 14 Session starts at 19200 baud
Table 159
Hayes dialing result codes and messages (Part 2 of 2)
Verbose
code Numeric
code Description