3 x 3 yellow LEDs to display the signal states of the serial interfaces COM1, COM2 and COM3

5 system LEDs: PWR/RUN, STA1 ETH, STA2 ETH, S-ERR, I/O-Bus

Allocation between terminal number and signal name of the serial interfaces

2 rotary switches for setting the I/O device identifier

1 green LED to display the process voltage UP

3 red LEDs to display errors (COM1-ERR, COM2-ERR, COM3-ERR) of the serial interfaces

Label

Ethernet Interfaces (ETH1, ETH2) on the terminal unit

3 removable connectors to connect the interfaces

6 spring terminals for power supply voltage (UP)

DIN rail