Unit 3. Air Traffic Control Systems Flashcards
- Basic components
1. Identify the two major assemblies of the ETVS.
(1) Communications console.
(2) Central equipment.
- Where is the maintenance position located?
At the central equipment racks.
- How do the capabilities of the maintenance position differ from the operator positions?
There is no difference in capabilities.
- Key system features
1. What ETVS component is the primary operator-control mechanism?
The TED.
- How is position-to-frequency programming accomplished?
Via the SCT.
- What ETVS component displays system faults?
The SCT.
- What type of link does the radio subsystem use to pass card status and switchover control between redundant radio processor cards?
RS–232 link.
- List the components that make up the telephone subsystem in the ETVS.
(1) Telephone card cages.
(2) Interface cards.
(3) Ring generator.
(4) Phone conferencer pairs.
(5) TMU/CMU.
- Block diagram theory of operation
1. What is the purpose of the central equipment processor cards?
To provide central equipment interface for radio, operator, and telephone voice.
- What is the purpose of the DA and IA controls?
To establish telephone communications.
- How does an operator initiate communications for a radio channel?
Via a key-press on the TED.
- In what form does microphone audio travel to the central equipment rack during transmit?
In digital form.
- State the function of the CCS.
To designate operator position functions and system configuration.
- Fundamentals
1. How is DRU record and playback controlled?
With the computer workstation.
- State the purpose of the NiceLog Software Suite.
To manipulate various features within the DVRS.
- In the event of a power failure, how long will the UPS power the DVRS?
Five minutes.
- Capabilities/limitations and theory of operation
1. What is the recording capacity of each DAT in the DVRS?
500 channel hours.
- What is used to provide accurate time stamp of recordings?
A GPS receiver.
- Which CCA in the DRU digitizes the audio?
The ADIF.
- When is information on the hard disk deleted?
When the software determines that particular audio is the oldest audio on the hard disk and the hard disk is full.
