RTC
®
5 PC Interface Board
Rev. 1.9 e
4 Layout and Interfaces
55
innovators for industry
The analog inputs are then available via a 9-pin D-SUB
connector at the soldered-on flat ribbon cable. Its
pinout is shown in
Specifications
• Input voltage range: 0 V … 10 V
• Input resistance: 4 k
• ADC resolution: 12 bit
The input signals are referenced to PC ground GND.
Note
• Actually, the ADC add-on board even provides a
third
10 V analog input ANALOG IN2 with
identical specifications (also see
); but
input values of this third analog input is
not
queryable via
.
25
(1)
GND
(2)
GND
(3)
GND
(4)
GND
(5)
GND
ANALOG IN0
(6)
ANALOG IN1
(7)
ANALOG IN2
(8)
DO NOT CONNECT
(9)
Pinout of the ADC add-on board’s 9-pin D-SUB connector