RTCU NX-200 Technical Manual V1.00
Advanced Automotive M2MI/IoT Gateway
Logic IO ApS.
Ph: (+45) 7625 0210
Holmboes Allé 14
Fax: (+45) 7625 0211
8700 Horsens
Page 17 of 45
Email: [email protected]
Denmark
Digital Inputs / Ignition Input
The digital inputs are all low pass filtered and transient protected. To activate the inputs, connect a
positive voltage between the input and the GND connector.
Please note:
The DIN 1/IGN input is special as it also functions as the ignition input. If the ignition
input is activated with a logically high or low (Wait For Event mode only), when the RTCU is in
low power mode, it will wake-up the unit. A power apply will also wake-up the unit, if it is in
power-down mode or WaitForEvent mode with power Apply and/or ignition selected for wake-
up. The ignition is de-bounced with a period between 1-2 ms, when used as a digital input. So, any
logical level applied to this input must be greater than 2 ms to be valid. The DIN 1/IGN input is
available on both the X1 power connector and the X3 connector together with the other digital
inputs
–
only one should be used at a time.
The power management allows the possibility to configure a wake-up on one or more digital
inputs with individually configured falling- or rising edge detection. Please consult the RTCU IDE
documentation for additional information.
X3: 16 pin I/O connector overview.
Pin
Name
Description
3
DIN 1/IGN Digital input 1 / Ignition input. (Shared with X1)
11
DIN 2
Digital input 2
5
DIN 3
Digital input 3
13
DIN 4
Digital input 4
6
DIN5
Digital input 5
4
SGND
Signal Ground
12
SGND
Signal Ground
14
SGND
Signal Ground
Specification for each digital input:
Min. Typ. Max.
Unit
Logic “High”
8
12
40
VDC Protected against transients and
low-pass filtered
Logic “Lo
w
”
-5
-
3
VDC
Cut-off frequency
-
25
-
kHz
Input impedance
-
14
-
kΩ
