Analog Input - Sierra Wireless AirLink MP70 Hardware User's Manual

AirLink MP70 Hardware User Guide
Table 2-6: High Side Pull-up / Dry Contact Switch Input
Source Current
V
out
* Configurable on the ACEmanager I/O tab
Table 2-7: Analog Input
Pull-up
Off Analog Input Range
Analog Input Accuracy
Rev 4 Nov.16
Minimum Typical
0.6 1.1
Vin = 7 V Vin = 12 V
V - 2.5 —
in

Analog Input

You can connect Pin 4 on the power connector or Pins 6 or 7 on the auxiliary I/O
connector to an analog sensor. As an analog input (voltage sensing pin), the
gateway monitors voltage changes in small increments. This allows you to
monitor equipment that reports status as an analog voltage.
The pin detects inputs of 0.5–36 V referenced to ground. When used with a
sensor to transform values into voltages, the pin can monitor measurements such
as temperatures, sensors, or input voltage.
MP70 router
V
in
Internal Pull-up
Resistor
Off (default)*
Z = 10 kΩ
in
Protection
circuitry
Output Off (default)*
Figure 2-13: Analog Input
Minimum
0.5
-1.5%
Maximum Units
3.5 mA
Vin = 36 V
V V
in
Pin 4 on the power connector, or
Pin 6 or 7 on the auxiliary
I/O connector
Typical Maximum
— 36
0.50% 1.5%
24
Comments
Maximum current the voltage
output can provide (depends on
Vin)
The voltage on Pin 4 when the
high side pull-up is enabled
(depends on Vin and power
consumption)
Solar panel or battery
Units Comments
V —
— —
Resistor
4119008