Sierra Wireless AirLink GX450 Hardware User's Manual page 41

I/O X-Card Digital I/O Input Pins
Pins 3, 4, 11 and 12 are programmed in ACEmanager to monitor inputs, respond to
certain types of events or trigger a digital output. They behave exactly like the Digital I/O
(pin 4) on the power connector as described in
page 32.
Note: Digital Input 1 in ACEmanager is reserved for Pin 4 on the power connector.
Pins 3, 4, 11 and 12 (Digital inputs 2 to 5) have a voltage of 3.3 VDC when set to high in
ACEmanager. A voltage on the pins of:
•
•
I/O X-Card Analog Voltage Input Pins
Pins 7, 8, 14 and 15 are the analog voltage sensing pins configured in ACEmanager.
Analog inputs monitor voltage changes in small increments. This allows you to monitor
equipment that reports status as an analog voltage. You can use volts as the units
reported or you can use the ACEmanager I/O Configuration screen to convert voltage to
the desired units of measurement. You can also use the Event Reporting feature in
ACEmanager to configure reports to be sent when an analog threshold is crossed. For
more information, refer to the ALEOS Software Configuration User Guide.
The pins have a maximum rating of 30 V, 200 µA.
Table 2-8: I/O X-Card Analog Voltage Input Pins
Pins Name
7 AIN[1...4] Voltage range
8
Input leakage current
14
Input capacitance
15
Error
These pins detect inputs of 0–30 VDC across the pins to ground. When used with a
sensor to transform values into voltages, the pins can monitor measurements like
temperatures, pressures or the volume of liquid in a container. ACEmanager can
transform these voltages into meaningful values. In ACEmanager, events reporting tells
the gateway to perform an action when a specified voltage is detected.
Rev. 11 July 2019
2.2 VDC to 30 VDC = logic 1
0 VDC to 1.3 VDC= logic 0
Specification
Connecting a DC Power Cable
Parameter Min
VADC 0
—
CIN —
0
41
Installation and Startup
on
Typical Max Units
— 30 V
— 200 µA
30 — pF
2.5 5 %
4114008