9
26
27
28
29
30
31
24
25
25
24
30
29
28
27
26
26
31
HERMES QL
HERMES QR
24 Power switch
25 Power connection jack
26 Slot for SD card
27 2 USB host interfaces for service
key, USB memory stick, keyboard,
barcode scanner, Bluetooth adapter,
WiFi adapter, external control panel or
warning light
28 USB Hi-speed device interface
29 Ethernet 10/100 Base-T
30 Serial RS-232 C interface
31 I/O interface
Figure 6
Connections