AT Commands

Response Number Codes / Messages

Response number codes, messages, and their meanings are listed in . The connect rates are serial port rates (DTE), not DCE rates.

Code

Message

Meaning

 

 

 

0

OK

Command received

 

 

 

1

CONNECT

Connect at 300 bps while X1, X2,

 

 

X3, or X4 command in effect; all

 

 

rates while X command in effect

 

 

 

2

RING

Ring detected

 

 

 

3

NO CARRIER

Valid carrier not detected within

 

 

period specified by register S7, or

 

 

carrier lost for value of S10 or

 

 

more

 

 

 

4

ERROR

Command not recognized or too

 

 

long

 

 

 

5

CONNECT 1200

Connection made at 1200 bps

 

 

 

6

NO DIAL TONE

No dial tone detected for 5

 

 

seconds (X2 or X4 command in

 

 

effect)

 

 

 

7

BUSY

Dialed number busy (X3 or X4

 

 

command in effect)

 

 

 

10

CONNECT 2400

DTE rate 2400 bps

 

 

 

11, 15

CONNECT 4800

DTE rate 4800 bps

 

 

 

12, 18

CONNECT 9600

DTE rate 9600 bps

 

 

 

20

CONNECT 300

DTE rate 300 bps

 

 

 

22

CONNECT 7200

DTE rate 7200 bps

 

 

 

23

CONNECT 12000

DTE rate 12000 bps

 

 

 

24

CONNECT 14400

DTE rate 14400 bps

 

 

 

25

CONNECT 16800

DTE rate 16800 bps

 

 

 

26

CONNECT 19200

DTE rate 19200 bps

 

 

 

27

CONNECT 21600

DTE rate 21600 bps

 

 

 

28

CONNECT 24000

DTE rate 24000 bps

 

 

 

29

CONNECT 26400

DTE rate 26400 bps

 

 

 

30

CONNECT 28800

DTE rate 28800 bps

 

 

 

Modem 3600

5-9

Page 65
Image 65
Black Box 3600 MODEM manual Response Number Codes / Messages, Code Message Meaning