SIERRA WIRELESS AirLink LX40 Enterprise LTE Router User Guide

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AirLink LX40 Series Hardware User Guide  

Digital Output/Open Drain  

Digital output/open drain, used to drive an external digital input, for example, is available  

using Pin 4 on the power connector.  

LX40  

Vin  

Vcc  

Internal pull-up  

resistor  

External Pull-Up  

Resistor  

Off  

Protection  

On/Off  

Circuitry  

Pin 4 (power connector)  

Figure 2-18: Digital Output/Open Drain  

Table 2-8: Digital Output / Open Drain  

Pull-up  

State  

Minimum  

Open Circuit  

—

Typical  

Maximum  

Comments  

Off  

Off  

Active Low  

—

—

—

—

0.5 V  

5 mA,  5 V  

Step 7—Check the Router Operation  

1. When power is supplied to the AirLink LX40 router, it powers up automatically, as  

indicated by the flashing LEDs. If it does not turn on, ensure that the:  

· Power connector is plugged in and supplying voltage greater than 9 VDC.  

Note: Although the LX40 operates in the range 7–36 VDC, low voltage standby mode is  

enabled by default. In order to avoid the router powering on in standby mode, ensure that it is  

supplied with more than 9 VDC at startup. (You can change the low voltage standby mode  

settings once the router is operational. If the Power LED is red, the router is in standby mode.)  

· On/Off control (pin 3) is connected to the battery or power source (see Step 5—  

Connect the Power on page 19 for details).  

Rev. 4 January 2022  

30  

41112510  

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General	Details
Name	SIERRA WIRELESS AirLink LX40 Enterprise LTE Router User Guide
Make	SIERRA WIRELESS
Language	English
Filetype	PDF (Download)
File size	0.96 MB

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