Nortel Networks Circuit Card User Manual

 NT7D16 Data Access card

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.

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