Z02215 Datasheet, PDF (42/74 Pages) Zilog, Inc. – Single Chip Modem with Integrated Controller, Data Pump, and Analog Front End

Z02215
Single Chip Modem with Integrated Controller, Data Pump, and AFE
36
Result Codes
A result code is a line of text or a number that the modem sends to the terminal to
indicate the result of a command execution. Some connect result codes indicate
the telephone line data rate. The following table provides a list of the available
result codes.
Table 6. Result Codes
Number Word
Result Code Description
0
OK
A command line is executed successfully without errors.
1
CONNECT
The modem is in the ON-LINE state, ready to transfer data.
2
RING
The modem has detected a ring signal on the telephone line. The country
configuration may disable the modem’s ability to detect a telephone line
ring signal.
3
NO CARRIER
Either no carrier signal is detected when answering/placing a telephone
call or the carrier is lost during a call. The modem also returns this result
code when the telephone line connection is broken for any reason.
4
ERROR
An invalid command is issued, or there an error exists in the command
line.
5
CONNECT 1200 The modem is in the ON-LINE state, ready to transfer data. The telephone
line data rate is 1200 bps.
6
NO DIALTONE No dial tone is detected when the modem takes the telephone line off-
hook.
7
BUSY
The modem detects a busy signal on the telephone line.
8
NO ANSWER
A too short period of silence is detected in response to the @ dial modifier.
10
CONNECT 2400 The modem is in the ON-LINE state, ready to transfer data. The telephone
line data rate is 2400 bps.
16
CONNECT
The modem is in the ON-LINE state, ready to transfer data. This modem
1200TX/75RX
transmits at 1200 bps and receives at 75 bps.
17
CONNECT 75TX/ The modem is in the ON-LINE state, ready to transfer data. This modem
1200RX
transmits at 75 bps and receives at 1200 bps.
18
CONNECT
The modem is in the ON-LINE state, ready to transfer data. This modem
1200TX/150RX transmits at 1200 bps and receives at 150 bps.
19
CONNECT 150TX/ The modem is in the ON-LINE state, ready to transfer data. This modem
1200RX
transmits at 150 bps and receives at 1200 bps.
20
BLACKLISTED The modem does not allow any number to be dialed until the modem is
reset.
21
DELAYED
The modem does not allow any number to be dialed now, until a specified
time period elapses.
PS001907-0904
Result Codes