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AirLink RV55 Hardware User Guide
Rev. 1 June 2019
30
41113042
Note: During bootup, the I/O settings remain in their default state: the internal pull-up resistor is
disabled, and output current sink switch is open. After bootup, any custom I/O settings are applied.
This may take approximately 30 seconds after the router is restarted or powered on.
You can use Pin 4 in conjunction with events reporting to configure the RV55 router to
send a report when the state of the monitored router changes, for example when a switch
is opened or closed. For more information, refer to the ALEOS Software Configuration
User Guide (Events Reporting chapter).
Pulse Counter
You can use the green wire to connect Pin 4 to a pulse counter. The digital pulse counter
is not available in Standby mode.
Figure 2-11: Digital Input / Pulse Counter
Note: Values may vary, depending on signal noise.
Table 2-5: Pulse Counter
Pull-up
State
Minimum
Typical
Maximum
Units
Off
Low
—
—
1.0
V
High
2.7
—
Vin
V
RV55
Digital Pulse
Generator
V
in
Internal pull-up
resistor
Off (default)*
Z
in
!Nſ
Protection
Circuitry
V
Low
Ɗ9
V
High
Ƌ9
Pin 4 (power connector)