Motorola G24 用户手册
Fax Class 1
3-428
AT Commands Reference Manual
December 31, 2007
+FRM, Receive Data
This command causes the G24 to receive data from the remote party using the modulation
specified in <MOD>.
specified in <MOD>.
When the G24 receives the +FRM command it immediately returns a CONNECT result code.
When the terminal receives the CONNECT from G24, it can start receiving the data stream using
the transparent data command decoding. (Refer to
When the terminal receives the CONNECT from G24, it can start receiving the data stream using
the transparent data command decoding. (Refer to
When the G24 receives the +FRM command, it checks the line for a carrier. If the G24 detects a
carrier, it sends a CONNECT to the terminal, and starts receiving the fax page.
carrier, it sends a CONNECT to the terminal, and starts receiving the fax page.
Upon data stream termination, the G24 sends the termination sequence to the terminal.
Afterwards, if the G24 detects a loss of carrier, it sends a "NO CARRIER", otherwise it sends
OK.
Afterwards, if the G24 detects a loss of carrier, it sends a "NO CARRIER", otherwise it sends
OK.
The following table shows the command modulation select codes.
+FTH, Transmit DATA with HDLC Frame
This command causes the G24 to transmit data framed in the HDLC protocol, using the
modulation mode selected, to the remote party.
modulation mode selected, to the remote party.
For encoding and decoding information refer to
Command Type
Syntax
Response/Action
Remarks
Set
+FRM = <MOD>
CONNECT
Data stream
<DLE><ETX>
OK
The Set command causes the G24 to
enter the receive mode using the
modulation specified in <MOD>
enter the receive mode using the
modulation specified in <MOD>
Test
+FRM=?
(list of supported
<MOD>s)
OK
or:
+CME ERROR: <err>
Table 3-285: Command Modulation Select Codes -Modulation Parameters
<MOD> Value
Modulation
TrainTime
Rate (bit/s)
Required
24
Rec. V.27 ter
2 400
48
Rec. V.27 ter
4 800
72
Rec. V.29
7 200
96
Rec. V.29
9 600