PRIMUS
r
1000 Integrated Avionics System
A28--1146--112--00
C--1/(C--2 blank)
PRIMUS
â
II Radio System
Appendix C
PRIMUS
â
II Radio System
INTRODUCTION
The PRIMUS
R
II Radio System, also known as the integrated radio
system, displays communication and navigation information to the
flightcrew. The navigation data is fed to the integrated avionics
computers (IAC) for display on the electronic display system (EDS),
and for use by the automatic flight control system (AFCS), both of which
are resident in the IACs. Navigation data also goes to the flight
management system (FMS) computer.
It is a dual system, with system No. 1 being the left (pilot’s) side and
system No. 2 being the right (copilot’s) side.
The cockpit controls consist of a radio management unit (RMU), an
audio panel, and a tuning backup control head.
A functional block diagram of the integrated radio system is shown in
figure C--1.
This appendix is a summary of the systems operation. Refer to
Honeywell Pub. No. 28--1140--50 for a complete description of the
PRIMUS
R
II Radio System.
