User's Manual

P412 User’s Manual & Data Sheet 7
• Wireless noise-like / covert data communications
3 Hardware Block Diagram
This section provides and discusses at a high level the P412 functional hardware block diagram, as
shown in Figure 4. Additional detail on the various interfaces is provided in Section 4.
Fig. 4: P412 hardware functional block diagram
To power the board, the user must supply a maximum of 3.8 Watts at any voltage between 5.75-30V.
This can be accomplished either with the provided power supply or from a battery. Indicating lights
provide operating status information.