Fax class 1 and fax class 1.0 commands, 1 fax i/o processing, Conexant – Comtrol AT Commands for SmartACFL User Manual
Page 107
Command Reference Manual
100722A
Conexant
4-1
4.
FAX CLASS 1 AND FAX CLASS 1.0 COMMANDS
4.1
FAX I/O PROCESSING
The fax I/O interface supports asynchronous serial and parallel interfaces. The character format is 8 bits data, no parity, and 1
stop bit. Start and stop elements are removed from the transmit data and added to the receive data. Both transmit and
receive data are buffered. Flow control using XON/XOFF or RTS/CTS is provided.
Unique control character strings are identified, filtered, or reinserted into the I/O data stream. These control characters and
their resultant action are described below.
4.1.1
DTE-to-Modem Transmit Data Stream
Characters Detected
Action Taken
Delete
Recognize as a string terminator and take appropriate action.
Replace with single
4.1.2
Modem-to-DTE Receive Data Stream
Characters Detected
Action Taken
Insert extra
The modem also identifies the end of a frame by inserting
4.1.3
Fax Mode Selection
Fax Class 1 and Fax Class 1.0 commands are identified in Table 4-1. Fax Class 1.0 includes all Fax Class 1 commands.
Table 4-1. Fax Class 1 and Fax Class 1.0 Commands
Command/Parameter
Function
Applicable in
Fax Class 1
Applicable in
Fax Class 1.0
+FCLASS=
Select, read or test service class
X
X
+FAA=
Auto answer enable
-
X
+FAE=
Auto answer enable
X
X
+FTS=
Stop transmission and pause
X
X
+FRS=
Wait for silence
X
X
+FTM=
Transmit data with
X
X
+FRM=
Receive data with
X
X
+FTH=
Transmit HDLC data with
X
X
+FRH=
Receive HDLC data with
X
X
+FAR=
Adaptive reception control
-
X
+FCL=
Carrier loss timeout
-
X
+FDD=
Double escape character replacement control
-
X
+FIT=
DTE inactivity timeout
-
X
+FPR=
Fixed DTE Rate
-
X
+FMI?
Report manufacturer ID
-
X
+FMM?
Report model ID
-
X
+FMR?
Report revision ID
-
X
+FLO
Flow Control
-
X
&K
Local DTE-modem flow control (see Section 3.2.2.8)
X
X
A
Answer (see Section 3.2.3.4)
X
X
D
Dial (see Section 3.2.3.1)
X
X
H
Hangup (see Section 3.2.3.5)
X
X
X = Applicable; - = Not applicable.