KLM MD-11 - SELCAL System Block Diagram

MD-11 Flight Crew Operations Manual
k
Communications -
Functional Schematic
Comm.50.4
SELCAL System Block Diagram
DB1-2-1715
VHF-1
VHF-2
VHF-3
HF-1
HF-2
SELCAL
DECODER
ANNUNCIATOR
CONTROL UNIT
(ACU-3)
CAPTAIN
ACP-1
FIRST OFFICER
ACP-2
OBSERVER
ACP-3
CENTRAL
AURAL
WARNING
UNIT
(CAWU)
PTT
RESET
AUDIO
MANAGEMENT
UNIT-1
AUDIO
MANAGEMENT
UNIT-2
CHIME
SPEAKER
SELCAL
CODE
SELECT
PANEL
October 02, 2006