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selected?
5. If a system failure occurs, how to maintain comm between the aircraft
and ground station ?
6. Where are the captain's and first officer's audio control panel located?
7. Where is the first observer's ACP located ?
8. Where is the remote electronics unit located ?
9. How many microphone pushbuttons are located on the top of ACP ?
What are they ?
10. What is the function of these pushbutton ?
11. Can all pushbutton be selected at a time ?
12. How many circular-shaped knobs are located on the ACP ? What is
the function of these knobs ?
13. How many knobs may be turned on at the same time ?
14. When the VHF-1 microphone selector push button is selected, is the
VHF-1 audio automatically enabled ?
15. The R/T-I/C switch is a 3 position switch. In the R/T position, where
is the PTT signal sent to ? In the I/C position, what are connected
directly to the flight interphone system?
16. What is the function of the BOOM/MASK switch?
17. What does the V/B/R switch control ?
18. When the V/B/R switch in the V position, will the morse identifier be
heard only?
19. What is the use of ALT/NORM switch?
20. When ALT is selected on the first officer's ACP, it is connected
directly to VHF-1. True or false?
21. Where are the 3 identical station cards located? What is the function
of the 3 cards?
22. What is the function of the fourth card (AAU)?
23. Which card is the motherboard?
24. What is the purpose of interphone/microphone switch? Where is the
switch located?
25. When the interphone/microphone switch is in the INT position,
microphone audio is directed to the selected comm system. That is
true or false? If false, what is the true?
26. Where is the warning audio from GPWS sent to ?
27. What activates the altitude alert tone generator?
28. what does the REU send to the voice recorder?
29. What does the alternate mode of operation provide?
EXERCISE
A. Find out the explanations of the following words in your "
English-Chinese technical dictionary".
1. audio control/selector panel [P1-14]
2. navigation [P1-104]
3. printed circuit card [P1-117]
B. Translate Paragraph 1,2,3 and 4 of Lesson 41 into Chinese.
C. Explain the following abbreviations and acronyms.
1. REU
2. ACP
3. I/C
4. PTT
5. AAU
6. FLT INT
7. PA
8. SERV INT
9. MKR
10. SPKR
11. MIC
D. Answer the questions to Lesson 41 (in Chinese).
LESSON 42
SERVICE INTERPHONE AND CREW CALL
VOCABULARY
1. service interphone [ 's:vis]['intfoun] 勤(服)務(wù)內(nèi)話
2. communication [ kmju:ni' kein] n. 通信; 聯(lián)絡(luò)
3. service station 勤(服)務(wù)位置
4. intercom=intercommunication 互相通話聯(lián)絡(luò)
5. network [ 'netw:k] n. 網(wǎng)絡(luò)
6. handset [ 'hændset ]n. 手機
7. doorway [ 'd :wei ] n. 門口; 入口
8. resemble [ ri'zembl ] vt. 類似; 相象
9. microphone [ 'maikrfoun ] n. 話筒; 送話器
10. speaker [ 'spi:k ] n. 喇叭; 揚聲器
11. grip [ grip ] n. 把手; 手柄
12. jack [ d æk ] n. 插座; 插口
13. headset [ 'hedset ] n. 頭戴耳機
14. toggle switch [ 't gl ] 搬鈕開關(guān)
15. prevent M from + ing 使M 不致--- ; 防止M 做---
16. interfere [ int' fi ] vi. 干擾; 妨礙
17. advise [ d'vaiz ] v. 建議; 提醒
18. horn [ h :n ] n. 喇叭; 報警器
19. readily [ 'redili ] ad. 容易地; 不費力
20. personnel [ p:s' nel ] n. (全體)工作(維護)人員
TEXT
[1] The service interphone is used for communication between the
attendant stations, the flight compartment, and the airplane servicing
stations. The system is an intercom network shared by the flight crew, the
attendants, and the ground crew. A crew member who operates a handset
or selects the service interphone function of an audio control panel is
interfaced with the system. Operation of the system from the servicing
station jacks requires the service interphone switch to be "ON" . This
switch is located on the P5 aft overhead panel. There are 3 handsets in
figure 42-1. The forward attendant handset is installed at the forward
attendant panel near the forward entry doorway. The aft attendant
handset is installed at the aft attendant panel near the aft entry doorway.
A provision handset is located at the aft end of the control stand.
Fig. 42-1 service interphone system
These handsets are used to talk to and listen to other station in the
interphone system. The handsets resemble the common hand-held
telephone receiver with a microphone on one end and a speaker on the
other. A pushbutton switch is located on the grip, press this pushbutton
　
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