HGT 835
8.4“ HANDHELD CONTROL PANEL
Page 24
16.08.2018
6
Storage Media
It is recommended that only storage media provided by SIGMATEK
(CompactFlash cards, microSD cards etc.) be used.
The number of read and write actions have a significant influence on the
lifespan of the storage media.
The microSD card is not meant to be used as a removable media and thus only
should be removed from the card holder for maintenance purposes.
7
Wiring Guidelines
7.1
ESD Protection
Typically, USB devices (keyboard, mouse...) are not equipped with shielded cables. These
devices are disrupted by ESD and in some instances, no longer function.
Before any device is connected to, or disconnected from the handheld control panel, the
potential should be equalized (by touching the control cabinet or earth terminal). This will
allow the dissipation of electrostatic loads (caused by clothing/shoes).
8
USB Interface Connections
The handheld control panel has a USB interface. The terminal has a USB interface connec-
tion that can be used to connect various USB devices (keyboard, mouse, storage media,
hubs, etc.).