ABB 1MRS119000 Operator's Manual page 20

20
Fn - Select Line Modulation
This command selects the line modulation according to the parameter supplied. The line
modulation is fixed unless Automode is selected. This command interacts with the S37
and the N command. The parameter value, if valid, is written to S37 bits 0-4. To select line
modulation, it is recommended that either the F command, or a combination of the S37
and the N command, be used, but not both.
F0 Selects auto-detect mode. Sets N1 and sets S31 bit 1. In this mode, the modem
configures for Automode operation. All connect speeds supported by the modem are
possible according to the remote modem's preference. The contents of S37 are ig-
nored as is the sensed DTE speed.
F1 Selects V.21 or Bell 103 according to the B setting as the only acceptable line speed
resulting in a subsequent connection. Sets N0, sets S37 to 1, and clears S31 bit 1.
This command is equivalent to the command string: ATN0S37=1.
F2 Not supported.
F3 Selects V.23 as the only acceptable line modulation for a subsequent connection.
Originator is at 75 bps and answer is at 1200 bps. Sets N0, sets S37 to 7, and clears
S31 bit 1. This command is equivalent to the command string: ATN0S37=7.
F4 Selects V.22 1200 or Bell 212A according to the B command setting as the only
acceptable line speed for a subsequent connection. Sets N0, sets S37 to 5, and clears
S31 bit 1. This command is equivalent to the command string: ATN0S37=5.
F5 Selects V.22 bis as the only acceptable line modulation for a subsequent connection.
Sets N0, sets S37 to 6, and clears S31 bit 1. This command is equivalent to the
command string: ATN0S37=6.
F6 Select V.32 bis 4800 or V.32 4800 as the only acceptable line modulation for a subse-
quent connection. Sets N0, sets S37 to 8, and clears S31 bit 1. This command is
equivalent to the command string: ATN0S37=8.
F7 Selects V.32 bis 7200 as the only acceptable line modulation for a subsequent con-
nection. Sets N0, sets S37 to 12, and clears S31 bit 1. This command is equivalent to
the command string: ATN0S37=12.
This setting also allows connection at the Rockwell proprietary 7200 V.32 speed,
e.g., with an RC9696/12-based modem.
F8 Selects V.32 bis 9600 or V.32 9600 as the only acceptable line modulations for a
subsequent connection. Sets N0, sets S37 to 9, and clears S31 bit 1. This command is
equivalent to the command string: ATN0S37=9.
F9 Selects V.32 bis 12000 as the only acceptable line modulation for a subsequent con-
nection. Sets N0, sets S37 to 10, and clears S31 bit 1. This command is equivalent to
the command string: ATN0S37=10.
This setting also allows connection at the Rockwell proprietary 12000 V.32 speed,
e.g., with an RC9696/12-based modem.
F10 Selects V.32 bis 14400 as the only acceptable line modulation for a subsequent con-
nection. Sets N0, sets S37 to 11, and clears S31 bit 1. This command is equivalent to
the command string: ATN0S37=11.