0x01

Format error in incoming message

(NOTE: The PPL Event Indication will have a AIB of stack)

0x02

Unequipped CIC in incoming message

(NOTE: The PPL Event Indication has an AIB of stack unless the incoming DPC is not configured. In that case, a Channel AIB with data of 0xFF FF FF is used.)

0x03

Undefined message received

(NOTE: The PPL Event Indication will have a AIB of stack)

0x04

Confusion Message received

(NOTE: The PPL Event Indication will have a AIB of span/channel)