Step 6-Check The Router Operation - Sierra Wireless AirLink RV55 Hardware User's Manual

Digital Output/Open Drain
You can use Pin 4 as an open drain to drive an external digital input
External Pull-Up
Resistor
Pin 4 (power connector)
Figure 2-17: Digital Output/Open Drain
Table 2-10: Digital Output / Open Drain
Pull-up State
Off Off
Active Low
Step 6—Check the Router Operation
1. When power is supplied to the AirLink RV55 router, it powers up automatically, as
Rev. 1 June 2019
V
cc
Minimum Typical
Open Circuit —
— —
indicated by the flashing LEDs. If it does not turn on, ensure that the:
· Power connector is plugged in and supplying voltage between 7–36 V.
Note: Although the RV55 router operates in the range 7–36 V, low voltage standby mode is
enabled by default, so in order to avoid the router powering into standby mode, ensure that it is
supplied with more than 9 V at startup. (If desired, you can change the low voltage standby
settings once the router is operational.) If the Power LED is red, the router is in standby mode.
· Ignition Sense (pin 3) is connected to the battery or power source (see
Connect the Power on page 24 for details)
RV55
V
in
Internal pull-up
resistor
Off
Protection
On/Off
Circuitry
Maximum Units
— —
0.5 V
35
Installation and Startup
Comments
—
5 mA,  5 V
Step 5—
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