38
DRAFT
P440 Data Sheet / User Guide
First, operation with the power amp will exceed the transmit power of most (but not all) regulations in
most (but not all) countries. For example, in the US and Europe it will be very difficult to certify a
commercial product that makes use of this power amp.
Second, not only does the power amp increase the in-band transmit power but it also increases the
out-of-band transmit power. The increase in out-of-band power does not necessarily increase in a
linear fashion relative to the increase in-band power.
Units which are provided with an optional power amplifier will
not
carry an FCC certification mark.
While this option is available for experimentation and research, the user is responsible for ensuring
that its use is permitted by their country’s regulatory authorities.
4.9 Indicator Lights
The P440 is provided with five indicator LEDs. See
Figure 14
for exact locations. The following is
an explanation of the LED functions.
Ethernet LEDs
(located on the back of the RJ45 connector)
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 also
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
o
On initiation of a CAT packet transmission
o
On initiation of a CAT packet reception
o
On completion of an MRM monostatic radar scan
FPGA LED
(located on the same side but opposite edge from the UWB LEDs)
Green: Blinking indicates that the FPGA is loaded, acting as baseband, and is ready to
transmit or receive. Off indicates an FPGA fault or that the FPGA is in a low power sleep
mode.
The following is a description of the LED activity when the unit powers up. When power is applied
to the P440, the FPGA LED will begin blinking at approximately a 2 Hz rate. At the same time, the
Green UWB LED will turn off and the Blue LED will be on. The Blue LED will stay on for
approximately 5 seconds. This period is the boot time of the radio. Once the unit has successfully
booted, the Blue LED will blink approximately every 2 seconds. The Green UWB LED will blink
