Intercommunications System (ICS) Flashcards Preview

ACOM/IFT CAT 1 > Intercommunications System (ICS) > Flashcards

Flashcards in Intercommunications System (ICS) Deck (25):
1

What is the function of the ICS?

to provide low crosstalk, secure and nonsecure communications from station to station and from station to radio and to other avionic system communication interfaces on the E-6B aircraft

2

Where is the Communications Control Unit located?

E45 rack in the FWD lower lobe

3

What are the power requirements for the CCU?

28 VDC from PRI CCU & SEC CCU c/b on P5

4

What is the function of the CCU?

"brains" of ICS
provides interface for radios and communications subsystems

5

Where are the Crew Station Units (CSUs) located and how many are there?

4 on flight deck
4 in mission area (ACOMs)
1 at Reel Op station

6

What are the power requirements of the CSUs?

28 VDC from P5

7

What is the function of the CSU?

Flight Deck - monitor systems
Mission - access R/Ts for transmission
Reel - monitor the 3 ICS channels

8

Where are the Auxiliary Control Units (ACUs) located and how many are there?

4/ positions 17,18,20, 21 (ACOMs)

9

What are the power requirements of the ACU?

28 VDC from MSN-1 & MSN-2 c/b P5

10

What is the function of the ACU?

allow access to VHF/UHF and HF 1 transmitters
Position 21 can utilize TSEC 8

11

Which HF radios are capable of going secure?

HF 3, 4, & 5

12

Where is the Maintenance Control Unit (MCU) located?

ACO Station in Comm Central

13

What are the power requirements for the MCU?

28 VDC from 28 VDC DAISS 1 on E42-1/ & AF AMP on P5

14

What is the function of the MCU?

provide access to the CALL Intercom Network and Emergency PA

15

Where are the Maintenance Station Units (MSUs) located and how many are there?

Lower Lobes, External Jacks, Reel Area, Galley
8

16

What are the power requirements for the MSUs?

28 VDC from P5

17

What is the function of the MSU?

ICS station connection for emergency communication to the flight deck, crew members, and Reel Operator

18

Where is the Emergency Audio Panel (EAP) located?

center pedestal of flight deck

19

What are the power requirements for the EAP?

28 VDC from PRI CCU, SEC CCU, BACKUP CSU, AC CSU c/bs on P5
also from RADIO PANEL - MAIN c/b on P7

20

What is the function of the EAP?

automatically initiate or allow the Pilot and Co-pilot to select the PA emergency audio backup mode

21

Where is the Emergency PA Assembly located?

ACO position 19

22

Where is the PA Amplifier located?

E45 Rack, FWD Lower Lobe

23

How many Loudspeakers are there and where are they located?

16
Main Deck (9)
Lower Compartments (7)

24

What are the power requirements for the PA and Loudspeaker system?

28 VDC from AF AMP c/b on P5

25

What is the function of the PA and Loudspeaker system?

route audio to PA speakers and headsets
provide ACO access to DAISS during normal operation or access to PA during emergency( backup)