BECKHOFF EL9xxx - Manual (Page 11)

Foreword
Fig. 3: CU2016 switch with batch number
Fig. 4: EL3202­0020 with batch numbers 26131006 and unique D­number 204418
Fig. 5: EP1258­00001 IP67 EtherCAT Box with batch number 22090101 and serial number 158102
Fig. 6: EP1908­0002 IP76 EtherCAT Safety Box with batch number 071201FF and serial number 00346070
EL9xxx 11 Version 3.1