12
MC9190-NI
Technical Data External Interface
Figure 2
I/O Pin-out
CAUTION
Operating the 17-pin data interface is only permissible outside the hazardous area and only
with devices specified by the manufacturer.
Operating of the headset port is only permissible outside the hazardous area and only with
devices specified by the manufacturer.
Table 2
I/O Pin-out Signal Descriptions
Pin
Signal Name
Description
1
USB_GND
USB
2
USB_D_Plus
USB
3
TxD
RS232C
4
RxD
RS232C
5
DCD
RS232C
6
RTS
RS232C
7
DSR
RS232C
8
GND
earth, 2.5 A max.
9
RI
RS232C
10
Cradle_DET
Grounded by cradle when in cradle
11
DTR
RS232C
12
Not assigned
Not assigned
13
Power_IN
12 V / 2.5 A max.
14
CTS
RS232C
15
USB_5V_DET
USB
16
USB_D_Minus
USB
17
EXT_Power_OUT
3.3 V @ 500 mA