C10a - Fernwartung
C10b - Zubehör
C11 - EtherCAT
C12 - CAN
C13a - Ethernet
C13b - Ethernet_POWERLINK
C14a - PROFIBUS
C14b - PROFINET
C15 - DeviceNet
C16 - INTERBUS
C17 - LECOM
C18 - LON
C19 - AS-interface