User's Manual
Appendix B Response Codes
Man_455U-D Rev 3.01 Page 77
Appendix B Response Codes
Response codes display the status of the module in response to user commands. The response
code displayed depends on the ATV setting, the ATX setting and the ATQ setting. ATV0
selects numeric response codes. ATV1 selects verbal response codes. The ATXn command
selects extended response codes. ATQ0 disables all response messages. ATQ1 enables
response messages. The following table describes the messages. A • symbol indicates that
messages is displayed for the corresponding ATX setting.
Numeric
Code
Verbal Message ATX setting Comments
X0 X1 X2 X3
0 OK
• • • •
Valid Command Entered
1 CONNECT
•
Connection established.
CONNECT baud is displayed for
X1,X2,X3
2 RING
• • • •
Module Received an incoming
connection request
3 NO CARRIER
• • • •
Connection with remote module
lost, or not initiated.
4 ERROR
• • • •
Invalid Hayes command entered.
7 BUSY
• •
X0, X1 display NO CARRIER
instead of BUSY
13 RINGING
•
X0, X1, X2 Don’t display
RINGING message
5 CONNECT 1200
• • •
CONNECT at 1200 baud
10 CONNECT 2400
• • •
CONNECT at 2400 baud
11 CONNECT 4800
• • •
CONNECT at 4800 baud
12 CONNECT 9600
• • •
CONNECT at 9600 baud
15 CONNECT 19200
• • •
CONNECT at 19200 baud










