Digital Inputs / Ignition Input - Logic IO RTCU MX2 turbo Technical Manual

RTCU MX2 turbo Technical Manual V2.04

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 5/IGN input is a special input as it also functions as the ignition input. If the
ignition input is activated with a logical 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 5/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
11 DIN 2
5 DIN 3
13 DIN 4
6 DIN5/IGN
4 SGND
10 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
Digital input 2
Digital input 3
Digital input 4
Digital input 5 / Ignition input. (Shared with X1)
Signal Ground
Signal Ground
Signal Ground
Min. Typ. Max.
8 12 40
-5 - 3
- 450 -
- 14 -
Page 12 of 36
Unit
VDC Protected against transients and low-
VDC pass filtered
kHz
kΩ
Ph: (+45) 7625 0210
Fax: (+45) 7625 0211
Email: support@logicio.com
www.logicio.com