Mounting and connecting 
  3.3 Connecting the HMI device 
Basic Panels 2nd Generation 
Operating Instructions, 10/2016, A5E33293231-AB 
35 
 
Below are examples of devices designed for industrial use you can connect to the  
USB type A interfaces of the HMI device:  
●  External mouse 
●  External keyboard 
●  USB stick 
●  Industrial USB Hub 4 
Additional information is available in the section "Accessories (Page 15)". 
 
Note 
Connect a USB mouse or USB keyboard only for commissioning and servicing purposes to 
the USB port.
 
 
Note 
USB 2.0 certified cable required 
If you use 
a USB cable which is not USB 2.0 certified, errors may occur during data transfer. 
 
Use only USB cables that are labeled "Certified
 HI-SPEED USB 2.0". 
 
Note 
USB cable length maximum 1.5 m 
USB cables with lengths of more than 1.5
 m do not ensure secure data transfer. 
The cable may not be longer than 1.5
 m. 
 
Note 
Functional problem with USB port  
If you connect an external device with a 230 V power supply to the USB port without using 
an non
-insulated installation, you may experience functional problems.  
-insulated system design.