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ACOM/IFT CAT 1 > DAISS > Flashcards

DAISS Flashcards

1
Q

What does DAISS stand for?

A

Digital Airborne Intercommunications and Switching Set

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2
Q

What is the function of DAISS?

A

audio and data interface for onboard, air-to-air, and air-to-ground communications

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3
Q

Where are the Electrical Interface Units (EIUs) located and how many are there?

A

5 total
4 in C1 cabinet
1 in P20 Bay 6

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4
Q

What are the power requirements for the Electrical Interface Units (EIUs)?

A

28 VDC from RED EIU 1, 2, 3, & 4 on E42-1

28 VDC from RED EIU No. 5 on P20 Distr

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5
Q

What is the function of the Electrical Interface Units (EIUs)?

A

provide an interface between DAISS and aircraft equipment: Radio, Cryptic, Data, Power Amplifier (PA)
secure communications

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6
Q

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

A

C1 cabinet

2 total

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7
Q

What are the power requirements for the Attendant Control Units (ACUs)?

A

115 VAC 400 Hz from DAISS ACU 1 & 2 on E42-1

28 VDC from ACU 1 & 2 on E42-1

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8
Q

What is the function of the Attendant Control Units (ACUs)?

A

provide all control function of the DAISS; op programs; BIT

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9
Q

What happens if an Attendant Control Unit (ACU) fails?

A

automatically switches to the alternate ACU

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10
Q

Where are the Transmultiplexers (XMUXs) located and how many are there?

A

3 total

C1 cabinet

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11
Q

What are the power requirements for the Transmultiplexers (XMUXs)?

A

115 VAC 400 Hz from DAISS MUX 1, 2, & 3 on E42-1

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12
Q

What is the function of the Transmultiplexers (XMUXs)?

A

creates 15 channels out of 1 frequency input;
combines 15 channels into 1 frequency output;
interface between DAISS and Frequency Division Multiplex (FDM)

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13
Q

Where are the Status Display Units (SDUs) located and how many are there?

A

2 total

P30 Bay 2; ACO station

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14
Q

What are the power requirements for the Status Display Units (SDUs)?

A

28 VDC from DAISS 1 & 2 on E 42-1

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15
Q

What is the function of the Status Display Units (SDUs)?

A

provide operator interface for administrative and maintenance functions

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16
Q

Where are the Subscriber Station Units (SSUs) located and how many are there?

A

10 total
P30 Bay 2; ACO station; 6 in Battlestaff area;
2 in fwd Crew Rest area

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17
Q

What are the power requirements for the Subscriber Station Units (SSUs)?

A

28 VDC from DAISS 1 & 2 on E42-1

18
Q

What is the function of the Subscriber Station Units (SSUs)?

A

operator interface to DAISS;

provide dialing and access to radio and ICS

19
Q

Where is the Maintenance Control Unit (MCU) located?

A

ACO station

20
Q

What are the power requirements for the Maintenance Control Unit (MCU)?

A

28 VDC from P5

21
Q

What is the function of the Maintenance Control Unit (MCU)?

A

provide access to the CALL Intercom Network and Emergency PA Assembly

22
Q

Where is the Emergency PA Assembly located?

A

ACO station

23
Q

What are the power requirements for the Emergency PA Assembly?

A

28 VDC from P5

24
Q

What is the function of the Emergency PA Assembly?

A

provide ACO access to DAISS during normal operation or direct access to aircraft PA system during an emergency

25
Q

Where are the DAISS Loudspeakers located and how many are there?

A

7 total
1 in Crew Rest
6 in Battlestaff

26
Q

What are the power requirements for the DAISS Loudspeakers?

A

28 VDC from DAISS 1 & 2 on E42-1

27
Q

What is the function of the DAISS Loudspeakers?

A

to amplify the SSU audio output and provide it to the operator

28
Q

Where is the Battlestaff Security Panel located?

A

Left Battlestaff Console

29
Q

What are the power requirements for the Battlestaff Security Panel?

A

28 VDC from BTSF SECURITY on E903-1

30
Q

What is the function of the Battlestaff Security Console?

A

to allow lockout or enabling of DAISS SDUs

31
Q

Where are the Secure Terminal Equipments (STEs) located and how many are there?

A

6 total

C1 cabinet

32
Q

The 6 Secure Terminal Equipments (STE) are also known as _____.

A

TSECs 15-20

33
Q

What are the power requirements for the Secure Terminal Equipments (STEs)?

A

115 VAC 400 Hz from TSEC 15, 16, 17, 18, 19, & 20 on E42-1

34
Q

What is the function of the Secure Terminal Equipments (STEs)?

A

to provide voice/data encryption with an integral wire line MODEM

35
Q

What kind of FORTEZZA card contains both split ciks?

A

Fill Card

36
Q

What kind of FORTEZZA card contains operational keys & split cik A?

A

User Card

37
Q

What kind of FORTEZZA card allows changes to security settings of a specific STE?

A

TPA Card

38
Q

What kind of FORTEZZA card contains cik split B and is used to associate a User Card with another STE?

A

Carry Card

39
Q

Where are the STE RCUs located and how many are there?

A

3 total

P30 Bay 1

40
Q

What are the power requirements for the STE RCUs?

A

28 VDC from STE RCU 1, 2, & 3 on P30 DISTR 2

41
Q

What is the function of the STE RCUs?

A

operate 2 STE terminals as a dual controller

ACOM/IFT CAT 1 (27 decks)

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