Sierra Wireless 20070914 - Manual (Page 71)

Inputs, Relay Outputs, and Power Status
Rev 3.0B Feb.08 58
Figure 7-9: AceManager : Low Power
Wiring the PinPoint X for
When the Standby Ignition Sense is enabled and the ignition
sense connector is wired to your vehicle, the ignition sense will
provide a link to the modem to enable it to enter a low‐power
using standby mode.
The white wire of the three wire connector should be used to
connect to your ignition.
Figure 7-10: Ignition Sense Power Connector
Power Effect on Modem State
Once the transition from powered on to standby, low‐power
mode starts, the modem will change state to AT mode. This
results in the current mode being gracefully terminated. For
the brief period when the modem is preparing for low‐power
mode, the modem will remain in AT mode. At that time, it
wonʹt auto‐answer, ATD will fail, etc. Once low‐power mode is
entered, the modem will then discard any data received on the
host port.
When the modem is woken from low‐power mode, the same
behavior occurs as upon power on. The modem starts in AT
mode, and then after 5 seconds will enter the default start‐up
mode as it is configured for the modem.
Monitoring Power-In Voltage
The current status of the power‐in voltage can be monitored in
AceManager. Select Status and scroll to the bottom.
Ignition Sense (white)
Power (red) Ground (black)
Not Used