Installation and Startup
Rev. 2 January 2021
27
41112510
High Side Pull-up / Dry Contact Switch Input
You can use the green wire to connect Pin 4 to a dry contact switch. The dry contact
switch is not available in Standby mode.
Figure 2-14: High Side Pull-up / Dry Contact Switch Input
Analog Input
You can connect Pin 4 on the power connector to an analog sensor. As an analog input
(voltage sensing pin), the router monitors voltage changes in small increments. This
allows you to monitor equipment that reports status as an analog voltage.
The pin detects inputs of 0.5–5 V or 0.5–10 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.
Using ACEmanager, you can select the range of voltage to be monitored to be
0–5 V or 0–10 V. For low input voltages, 0–5 V provides better accuracy.
*
Depending on the load, this value can range from Vin to Vin - 2.5 V.
** Configurable on the ACEmanager I/O tab
LX40
V
in
*
Internal pull-up
resistor (10K)
On**
I
Source
= 1.1 mA (Typ)
Protection
Circuitry
Output Off (default)**
Pin 4 (power connector)
Table 2-5: High Side Pull-up / Dry Contact Switch Input
Minimum
Typical
Maximum
Comments
Source Current
0.6 mA
V
in
= 7 V
1.1 mA
V
in
= 12 V
3.5 mA
V
in
= 36 V
Maximum current the voltage output can
provide (depends on V
in
)
V
out
V
in
- 2.5 V
—
V
in
The voltage on Pin 4 when the high side
pull-up is enabled (depends on V
in
and
power consumption)
