Operating Instructions ET-xx8 / MT-xx8
Mounting and installation
Page 44 of 84
R. STAHL HMI Systems GmbH / OI_ET_MT-xx8_en_V_01_02_03.docx / 10.03.2021
8.6
Using USB interfaces
Hardware and connection
Connection
to
intrinsically safe USB devices
non-intrinsically safe equipment
safe
area
hazardous
area
Device
safe area
hazardous area
X33 (Ex i)
x
x
e.g.
KBDi-USB-*-xx8-*
keyboard cable
–
–
X34 (Ex i)
x
x
e.g.
KBDi-USB-*-xx8-*
pointing device
cable
–
–
X35 (Ex i)
x
x
e.g.
USBi drive
–
–
X6 (Ex e)
–
any USB
device
explosion-protected
but non-intrinsically
safe devices
Functionality and application
ET-/MT-
4x8-*
Restoring factory state
USBi drive
device function
Creation of user / OEM backup
Software installation
Operation
KBDi-USB-*-xx8-*
ET-/MT-
5x8-*
Restoring factory state
USBi drive
Import / export parameters
Operation
KBDi-USB-*-xx8-*
ET-/MT-
6x8-*
Data memory
USBi drive
Operation
KBDi-USB-*-xx8-*