Motorola g20 - Table 119. Command Modulation Select Codes

98-08901C68-O 235
AT Commands Reference
The following table shows the command modulation select codes.
4.14.1.6 +FTH, Transmit DATA with HDLC Frame
This command causes the g20 to transmit data framed in the HDLC protocol, using the modulation mode selected, to the remote
party.
For encoding and decoding information refer to “Transmission Using the Transparent Data Command” on page 232.
After the entering active session mode (g20 sent CONNECT to the terminal), the terminal can perform one of the following:
• If the terminal sends additional data, the g20 transmits another frame
• If the terminal sends only <DLE><ETX> (a null frame), the g20 turns off the transmit carrier and sends the CONNECT result
code to the terminal
• If five seconds elapses from the time the g20 reports the OK result code without any additional data transmitted from the
terminal, the g20 turns off the transmit carrier, returns to command mode, and sends the ERROR result code to the terminal.
Set Command
The Set command causes the terminal to transmit data framed in HDLC protocol using the modulation mode selected.
Table 119. 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
Command Response/Action
FTH = <MOD>
(Send data stream <DLE><ETX>)
CONNECT
OK
or:
NO CARRIER
Note
MOD = 3 (Clause 2/V.21) rate 300 bps, is mandatory.
If the g20 detects a carrier after the FTH command, it sends a CONNECT to the terminal. If not, it sends "NO
CARRIER".