User guide

Services Configuration
Rev 1 Oct.13 151
Dynamic DNS
Dynamic DNS allows an AirLink device WAN IP address to be published either to
a proprietary Sierra Wireless dynamic DNS service called IP Manager, or to an
alternate third party Mobile Network Operator.
Whether you have one Sierra Wireless AirLink device or multiple devices, it can
be difficult to keep track of the current IP addresses especially if the addresses
are not static but change every time the devices connect to the cellular network. If
you need to connect to a specific gateway, or the device behind it, it is much
easier when you have a domain name (car54.mydomain.com, where are you?).
Reasons to Contact or Connect to a Device:
• Requesting a location update from a delivery truck
• Contacting a surveillance camera to download logs or survey a specific area
• Triggering an oil derrick to begin pumping
• Sending text to be displayed by a road sign
• Updating the songs to be played on a juke box
• Updating advertisements to be displayed in a cab
• Remote accessing a computer, a PLC, an RTU, or other system
• Monitoring and troubleshooting the status of the device itself without needing
to bring it in or go out to it.
A dynamic IP address is suitable for many Internet activities such as web
browsing, looking up data on another computer system, for data only being sent
out, or for data only being received after an initial request (also called Mobile
Engine Hours Ignition
Enable
If Pin 3 (the ignition sense pin) on the AirLink device’s power connector is wired to the
vehicle’s ignition switch
a
, oil pressure switch, or some other digital input, you can use this
field to trigger counting engine hours. The device starts counting engine hours when the
voltage on Pin 3 is high and stops counting when the voltage is low (Ground or 0 volts).
Options are:
• Disable (default) Engine hours are not incremented based on changes to Pin 3.
• Enable
Engine Hours Value
(hours)
Displays an estimate of the number of hours the engine has been running, based on either
the input voltage from the vehicle battery or the voltage on the ignition sense pin,
depending on which of the two previous fields you configured.
You can also set the engine hours value to an initial value. The initial default value is 0. The
maximum allowed value is 65535.
You can also use an AT Command to set this value. For more information, see *ENGHRS
on page 345.
Note: You can configure Events Reporting to send reports based on this value. For more
information, see Events Reporting Configuration on page 207.
a. For more information, refer to the AirLink GX Series or LS300 User Guide (Power Connector Description in
Chapter 2: Installation and Setup).
Field Description