User's Manual

16 Ultra Wideband Perimeter Surveillance Pole / User’s Manual
To power the board, the user must supply a maximum of 5 Watts at any voltage between
5.75-30V. Indicating lights provide operating status information.
The user can interface to the P400 through either USB (standard USB Micro B connector),
Serial connection, or Ethernet. Power is provided via a barrel connector. In addition, the
user can request the P400 to report the board temperature and can command the fan to turn
on or off.
The processor controls the UWB front end through a Digital Baseband FPGA interface.
More specifically, the FPGA configures the Time Doman P400 Pulser chip (UWB
transmitter) and P400 Analog Front End (AFE) chip (UWB receiver), provides timing signals
and out-going data, receives incoming data and controls the position of the transmit/receive
(T/R) switch.
There are three RF sections:
 A variable transmit power amplifier is provided in the Pulser chip. This allows the
user to adjust the transmit power over approximately a 19 dB range. At its maximum
setting (and when using the standard P200 antenna) these transmissions are compliant
with FCC Part 15 levels
 Receive chain consists of gain stages and band pass filter; and
 T/R switch supports two configurations: Transmit/Receive on Port A and Transmit on
A, Receive on B.