5 is the DTE rate (http://goldfndr.home.mindspring.com/dropfile/doorsys.htm)

The FOSSIL spec only supports specified baud rates as follows:
                010 =   300 baud
                011 =   600  ''
                100 =  1200  ''
                101 =  2400  ''
                110 =  4800  ''
                111 =  9600  ''
                000 = 19200  '' (Replaces old 110 baud mask)
                001 = 38400  '' (Replaces old 150 baud mask)

All doors using the DMlib door kit (MyCroft doors, Star Fight, an a number
of others) will die on an error as folows:
Rob Mcgee at 5:47 10/06/2004 on the local keyboard
Error -25: Illegal baud rate

Do not set to an "Illegal baud rate".  Not sure if this was set this way
for a rason or not, but it should at least be an option.