User's Manual

30 P330 Data Sheet / User Guide
DRAFT
 Green: Lit indicates operation at 100 Mbps, off means the link is operating at 10 Mbps.
 Yellow: Lit indicates the link is available, flashing indicates activity, and off means no link.
UWB LEDs (located adjacent to the RJ45 connector)
 Blue (Built in Test – BIT): flashing slowly (approximately 0.5 Hz) indicates that the unit is
operating normally. Flashing quickly (approximately 10 Hz) or solidly on or solidly off
indicates a failure.
 Green (UWB activity): Toggles (if off, turns on – if on, turns off) as follows:
o On initiation of a Range or Network Request packet transmission
o On initiation of a Range or Network Response packet transmission
o On initiation of a Range or Network Data packet transmission
o On initiation of a Network Beacon transmission
The following is a description of the LED activity when the unit powers up. When power is applied
to the P330, the Green UWB LED will turn off and the Blue LED will turn on. The Blue LED will
stay on for approximately 8 seconds. During this time, the unit will boot and execute a Built in Test
(BIT) of the system. Once the unit has successfully booted and has passed BIT, then the Blue LED
will blink approximately every 2 seconds. Any behavior other than what is described above should
be considered to be a fault.
DW1000 LEDS (located adjacent to the barcode)
These LEDs (TX, RX, SFD and RXOK) are copied from and provide the same functions as the signal
LEDS found on the Decawave EVK. They have been included for the convenience of those users
familiar with operation of the EVK.
4.9 Heat Management
The P330 consumes approximately 1 watt. While this isn’t very much power, this energy is sufficient
to warm the board. In some extreme cases, this can cause issues. For example, if the board is
operated in a sealed enclosure, in a high ambient temperature, with solar heating then the resulting
thermal rise can raise the board temperature above its rated limit.
The P330 is equipped with a built in temperature sensor which will report the board temperature.
The user should monitor this temperature sensor and insure that the unit is not operated in excess of
the maximum rated temperature.
The following examples are provided to illustrate the effect of self heating on temperature rise.
Case 1: Ambient 23°C, bare P330 sitting on a table in still air. Board Temp: 34°C
Case 2: Ambient 23°C, P330 mounted in Time Domain enclosure accessory. Board Temp: 38°C