PinPoint X HSDPA

Digital Inputs

Figure 7-2: Digital Input Contact Closure

By measuring contact closures on switches, the digital inputs can report a simple open or closed state. Each of the four digital inputs can be wired to the two ground signals via a switch. When the switch is open, the input will read “OPEN”. When the switch is closed and the input is connected to ground, the input will read “CLOSED”.

When a door or other latch is opened or closed.

Counting pulses or other electronic events.

When a gauge reaches a certain point.

When a container fills or empties.

When a switch or valve is opened or closed.

When the tow bar is raised or lowered.

Connected to a sensor, the level of fuel in a vehicle.

When the trunk of a vehicle is opened or closed.

When the ignition is turned on or off.

Relay Outputs

As an electronic switch which can be opened or closed (Normally Open relay), a relay can be used to transmit an action to another device by signalling to that other device an “on” or “off”. As a Normally Open relay, the circuit of the relay is disconnected (open) unless it is active. When the relay is active, the circuit is connected (closed).

Setting off an alarm or siren.

Triggering a process to start on another device.

Opening or closing a valve or switch.

Locking or unlocking a door.

Turning a light on or off.

Opening the vehicle’s trunk or doors.

 

 

 

 

 

 

 

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20070914

 

 

 

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Sierra Wireless 20070914 manual Digital Inputs, Relay Outputs

20070914 specifications

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