1

Operating state indicator

10

Monitor connection X26

2

ON/OFF switch S11

11

USB 2.0 port X25

3

Connection power supply 24 V X14

12

USB 3.0 port X24

4

Indicator (operating status, user-defined)

13

Network interfaces X22 and X21

5

Rotary switch S1

14

System function push button S10

6

Indicator of digital inputs and outputs

15

Connection FO output (TX) X10

7

Connection of digital inputs and outputs X5

16

Connection FO input (RX) X11

8

Battery compartment X30

9

Fixing screws

X20, SFP port for future functions