Epson Multi-mode Data Controller MFJ-1278B - Manual (Page 182)

MFJ-1278B MULTI-MODE OPERATIONAL COMMANDS
AUTOBAUD ON/OFF Mode: All Default: ON
Parameter:
ON
Tells the MFJ-1278B to set itself to the users terminal baudrate
OFF
Tells the MFJ-1278B to remember the last terminal baudrate it last set itself to.
When the AUTOBAUD command is ON, the MFJ-1278B will attempt to synchronize with
the user's terminal baud rate. When powered up, the MFJ-1278B will wait until it detects a
carriage return from the keyboard. You should repeatedly press the carriage return key upon
initial power up, until the MFJ-1278B recognizes it. When recognized, the MFJ-1278B will
set it's baud rate, to match the terminal baud rate of your computer before signing on.
Once the MFJ-1278B has signed on, you may turn AUTOBAUD OFF. If AUTOBAUD is
turned OFF, the MFJ-1278B will store the terminal baud rate that it signed on to last.
Therefore, each time the MFJ-1278B is powered up, it will sign on without executing the
autobaud routine. You should remember that if you turn AUTOBAUD OFF, and if the
terminal baud rate is changed, the MFJ-1278B will not be able to automatically reset itself to
the new baud rate. The terminal baud rate must be reset to the original setting. This being
the setting before it was changed, or RESET the bbRAM so the AUTOBAUD command is
turned ON. The MFJ-1278B will then be able to automatically seek a new terminal baud
rate.
If you must force the MFJ-1278B to autobaud due to AUTOBAUD being turned OFF, and
the terminal baud rate being changed, you will need to either remove the jumper from JMP 5,
on the MFJ-1278B circuit board. This must be done for a few minutes to reset the RAM
which stores the non volatile operating parameters. Once reset in this manner, the MFJ-
1278B will restore all parameters to the default values. Then the AUTOBAUD command
will now be at it's default setting of ON. The next time the MFJ-1278B is powered up after
such a reset, it will attempt to match the new baud rate and sign on after detecting several
carriage returns input to the serial port.