| Technical    data | CX8280 | 
                
                  | Processor | ARM    Cortex™-A53, 1.2 GHz | 
                
                  | Number of cores | 2 | 
                
                  | Flash    memory | slot for    microSD card, card not included (requires a microSD card with a minimum    capacity of 16 GB) | 
                
                  | Main memory | 1 GB LPDDR4 RAM (not expandable) | 
                
                  | Persistent    memory | 1-second UPS    (for 1 MB persistent data) | 
                
                  | Interfaces | 1 x RJ45 10/100/1000 Mbit/s, 1 x USB 3.0, 1 x bus    interface | 
                
                  | Bus    interface | D-sub socket,    9-pin, 1 x RS232, 1 x RS485 | 
                
                  | Data transfer rates | 300 baud…115 kbaud | 
                
                  | Diagnostics    LED | 1 x TC    status, 1 x WD, 1 x error | 
                
                  | Clock | internal, capacitor-buffered real-time clock for time    and date (storage capacity > 21 days) | 
                
                  | Operating    system | Linux® | 
                
                  | Control software | TwinCAT 3 runtime (XAR) | 
                
                  | I/O    connection | E-bus or    K-bus, automatic recognition | 
                
                  | Power supply | 24 V DC (-15 %/+20 %) | 
                
                  | Current    supply E-bus/K-bus | 2 A | 
                
                  | Max. power consumption | 5 W | 
                
                  | Max.    power consumption (with loading UPS) | 10 W | 
                
                  | Dimensions (W x H x D) | 71 mm x 100 mm x 73 mm | 
                
                  | Weight | approx. 265 g | 
                
                  | Operating/storage temperature | -25…+60 °C/-40…+85 °C | 
                
                  | Relative    humidity | 95 %, no    condensation | 
                
                  | Vibration/shock resistance | conforms to EN 60068-2-6/EN 60068-2-27 | 
                
                  | EMC    immunity/emission | conforms to    EN 61000-6-2/EN 61000-6-4 | 
                
                  | Protection rating | IP20 | 
                
                  | Approvals/markings | CE | 
                
                  | TwinCAT 3 platform level | Economy    (20); please see here for an overview of all the TwinCAT 3 platform    level |