Product data

USRobotics
Command Reference
Fax Class 1 and Fax Class 1.0 Commands - 115
beginning of the training sequence.
Syntax
+FTM=<mod>
Defined Values
<mod> Decimal number corresponding to the selected modulation mode and
data rates shown in Table 5-2.
Result Codes
CONNECT Reported when the modems begins the training sequence after
receipt of a valid <mod> value.
ERROR If the modem's transmit buffer becomes empty and the last
transmitted character is NUL (00), the modem continues to
transmit NULs until the DTE sends more data or five seconds
elapses. After five seconds elapse with a empty transmit buffer,
the modem will turn off the transmit carrier, return to the
command state, and report the ERROR result code.
Table 5-2: Fax Class 1 and Fax Class 1.0 Modulation Modes and Rates
<mod> Modulation Training Modulation Mode and Rate
3 V.21 300 bps
24 V.27 ter 2400 bps
48 V.27 ter 4800 bps
72 V.29 7200 bps
73 V.17 long 7200 bps long
74 V.17 short 7200 bps short
96 V.29 9600 bps
97 V.17 long 9600 bps long
98 V.17 short 9600 bps short
121 V.17 long 12000 bps long
122 V.17 short 12000 bps short
145 V.17 long 14400 bps long
146 V.17 short 14400 bps short