User's Manual

C-5000 COMMUNICATION MANAGEMENT CONTROLLER
INSTALLATION MANUAL
Publication No. 150-041118 Page 4-101
Rev C Section 4 –Electrical Installation
May 2006
H. Special Options
(1) Take_Control
Two C-5000's can be wired so that they can share the control of a RT-5000. To
implement this feature, the installer must make use of the "Take_Control" feature. Please
review Figure 4-16 that shows the installation of two C-5000's sharing control of two
RT-5000's.
For two C-5000's to share the control of a RT-5000 the aircraft wiring must be made as
follows:
a) The wiring harness should have wires going between P501 from BOTH control
heads to RT-5000 #1.
b) In addition, Pin 17 from each P501 connector must go to a switch that grounds
one or the other Pin 17. When the C-5000 sees a ground on Pin 17 of its P501
connector, it gives up control of the RT-5000 to the other C-5000. The display
of the control head without control will indicate "NO CONTROL" on either the
top or bottom line of the display depending on if it is Radio #1 or Radio #2
respectively.
NOTE: If a second RT-5000 is also being shared between the two C-5000's the
same arrangement must go between P502 connectors AND A SECOND
"Take_Control" switch must be installed.
NOTE: Take_Control Switches should be clearly labeled to reduce operator
confusion.
(2) Microphone/Headset Configuration
Versions of the C-5000 with part numbers 31300-12XX-XXOO have the primary
microphone and headset audio's ports on P500 hardwired to the radio connected to
P501. The secondary Microphone and headset ports on P500 are hardwired to the radio
connected to P502. The top line of the display indicates the status of the radio connected
to P501 and the bottom line of the display indicates the status of the radio connected to
P502.
If two C-5000's are sharing radio #1, the primary mic/headset ports of the P500
connectors must be connected together respectively and then tied into the FM1 port (or
however its labeled) of the audio panel. Similarly if two C-5000's are sharing radio #2, the
secondary mic/headset ports of on the P500 connectors must be connected together and
then tied into the FM2 port of the audio panel.