RTCU NX-900 Technical Manual V1.02
Advanced M2M/IIoT Gateway
Logic IO ApS.
Ph: (+45) 7625 0210
Holmboes Allé 14
Fax: (+45) 7625 0211
8700 Horsens
Page 20 of 45
Denmark
Wakeup (
ignition
) input
The DI5 / wakeup (
ignition
) input is a special input as it also functions as the ignition. If the input is
activated with a logical high when the RTCU NX-910 is in power down mode, it will wake the
device. A power apply will also wake the device up if it is in power-down mode.
In the other power saving modes, all the inputs and power apply/fail can be used to wake the
device with individually configured falling- or rising edge detection. Please consult the RTCU IDE
on-line help for more information.
The inputs are de-bounced with a period between 1-2 ms when used as a digital input therefore
any logical level applied to this input must be longer than 2 ms to be valid.
For placement and configuration of the hardware jumpers inside the device, please refer to the
device configuration guide in Appendix A.
Digital input terminals
Terminal Name
Description
Jumper Setting
DI1
Digital input 1 or
S0 input 1
JPDI1 in position
N
(
default
)
JPDI1 in position
S
DI2
Digital input 2 or
S0 input 2
JPDI2 in position
N
(
default
)
JPDI2 in position
S
DI3
Digital input 3 or
S0 input 3
JPDI3 in position
N
(
default
)
JPDI3 in position
S
DI4
Digital input 4 or
S0 input 4
JPDI4 in position
N
(
default
)
JPDI4 in position
S
DI5
Digital input 5 and
Wakeup (
ignition
) input
GND
Digital Ground
Specification for each digital input
Min.
Typ.
Max.
Unit
Logic
“High”
8
12
40
VDC Protected against transients and low-
pass filtered
@ 12V
@ 12V
Logic “
Low
”
-5
-
3
VDC
Bandwidth (normal)
-
12
-
kHz
Bandwidth (s0)
-
4
-
kHz
Input impedance
-
13.8
-
kΩ