SIERRA WIRELESS AirLink LX40 Enterprise LTE Router User Guide

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Installation and Startup  

Power Connector on the LX40  

Pin 4 (Green)  

GPIO  

Pin 3 (White)  

On/Off (Ignition) control  

Pin 1 (Red)  

Power  

For I/O information,  

see page 24.  

Pin 2 (Black)  

Ground  

For more information, see wiring diagrams on page 22.  

Figure 2-8: DC Power Cable Connections (Colors indicate DC cable wire colors)  

Table 2-2: Power Connector Pin and DC Cable Wires  

Pin  

Name  

DC Cable Description  

Wire Color  

Type  

1

Power  

Red  

Main power supply for device  

PWR  

Note: If you want to turn the LX40 on/off using a control line, Sierra  

Wireless strongly recommends that you connect the On/Off control line to  

Pin 3 and apply continuous power on Pin 1.  

2

3

Ground  

Black  

White  

Main device ground  

PWR  

I

On/Off  

control  

For installations where the LX40 is to be turned on/off, use the white wire  

connected to Pin 3 in the DC cable. The LX40 is off when this pin is either  

open-circuit or grounded, and on when this pin is connected to power. The  

LX40 should not be turned off by simply disconnecting the power.  

Pin 3 can be connected to an external switch.  

Note: If you do not connect pin 3 to a switch, you MUST connect it to the  

positive terminal of your power supply or battery. If you are using a Sierra  

Wireless AC adapter, the connection is inside the cable.  

Note: When the LX40 is using PoE, On/Off control is ignored.  

4

GPIO  

Green  

User configurable digital input/output or analog voltage sensing input.  

Connect to switch, relay or external device. For more information, see  

Step 6—I/O Configuration on page 24 and refer to the ALEOS Software  

Configuration User Guide.  

I/O  

Rev. 4 January 2022  

21  

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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