User's Manual
3
Device Overview
LEDs
The device has five (5) LEDs on an end panel. Moving from left to right the LEDs
are described below.
PWR
Power LED indicates the device has power from a vehicle source
and/or an DC adapter
SAFE
This LED will be turned on whenever the device enters a mode of
operation where a known good network configuration is used. The
default SAFE configuration uses DHCP to acquire a TCP/IP address.
This LED is also used to indicate a Bluetooth enabled wiTECH
SmartCable is connected to the device and is ready for a network
connection.
BUSY
Busy LED will be on during system boot. During normal device
operation this LED is not used, remains off, and is available to
applications that wish to show the device is processing data, for
example vehicle traffic or application data crunching. When the
device boots into Recovery Mode, this LED will blink rapidly in unison
with the WLAN LED.
WLAN
This led will be on when the WLAN is being used and blink to indicate
network traffic across the interface. As noted this LED will blink
rapidly when the device boots into Recovery Mode. The WLAN led is
also used to show traffic is moving across the Bluetooth network link
when a wiTECH SmartCable is being used and the SAFE led is on.
REC
This is an application specific LED, not used directly by the device
system software,
Note: The SAFE, BUSY, WLAN, and REC LEDs will blink in an alternating
pattern when a hardware or software error is detected when the device is first
powered on. When this error state occurs the device may operate in an
unspecified or incorrect manner. When the device is in this state the SAFE and
REC LEDs will blink on while WLAN and BUSY are off, then SAFE and REC
LEDs will be off while WLAN and BUSY blink on. This can be characterized as a
railroad-crossing pattern.
If this problem should occur, attempt a reboot of the device by removing and then
re-attaching the power source. If the problem persists you should contact
Customer Support for assistance.
If an error should occur during an upgrade of the system software, all four LEDs,
SAFE, BUSY, WLAN, and REC, will turn on and remain on until the unit is
powered down. Refer to the Software Upgrades section further on in this
document for more information on this topic.