Digital Inputs / Ignition Input - Logic IO RTCU NX-200 Technical Manual

RTCU NX-200 Technical Manual V1.00
Advanced Automotive M2MI/IoT Gateway

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
3 DIN 1/IGN
11 DIN 2
5 DIN 3
13 DIN 4
6 DIN5
4 SGND
12 SGND
14 SGND
Specification for each digital input:
Logic "High"
Logic "Low"
Cut-off frequency
Input impedance
Logic IO ApS.
Holmboes Allé 14
8700 Horsens
Denmark
Description
Digital input 1 / Ignition input. (Shared with X1)
Digital input 2
Digital input 3
Digital input 4
Digital input 5
Signal Ground
Signal Ground
Signal Ground
Min. Typ. Max.
8 12 40
-5 - 3
- 25 -
- 14 -
Unit
VDC Protected against transients and
VDC low-pass filtered
kHz
kΩ
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