Nortel Networks 553-3001-211 manual Baud rate detection, Parity detection, Busy, No Answer

Page 476 of 894 NT7D16 Data Access card

Table 154

Hayes dialing result codes and messages (Part 2 of 2)

Verbose	Numeric
code	code	Description
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

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.

553-3001-211 Standard 2.00 September 2004