This entry specifies the FEAC (Far End Alarm and Control) code
validation criteria. If 'fEACCodes4Of5' is specified, then a valid
FEAC code is declared if 4 of 5 codes match. When 'fEACCodes8Of10'
is specified, then a valid FEAC code is declared when 8 of 10 codes
match. If disable(3) is specified, then FEAC code generation
and detection is disabled.
Does not apply to the E3 interface.