The DAPI expected by the receiver. This object is applicable when jnxoptIfOTSnDirectionality has the value sink(1) or bidirectional(3). It has no effect if jnxoptIfOTSnTIMDetMode has the value off(1) or sapi(3). This object does not apply to reduced-capability systems (i.e., those for which jnxoptIfOTMnReduced has the value true(1)) or at IrDI interfaces (i.e., when jnxoptIfOTMnInterfaceType field 1 has the value 'IrDI').