-
What is the color code order for UTP?
- Primary: blue, orange, green, brown, slate
- Secondary: white, red, black, yellow, violet
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What color pairs are used for transmit in four-pair UTPT568a?
- Green, Green/White pair
- Transmits on pin 1 & 2
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What color pairs are used for receive in four-pair UTPT568a?
- Orange, orange/white pair
- receives on pins 3 & 6
-
How many wires are there in CAT5e cable?
- 8
- Blue, orange, green, brown, and a white that corresponds to each
-
What is 16-4 wire used for
Speaker wire
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What are RJ45 modular plugs used for?
Data
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An F fitting is used for what type of wire
Coax
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What does POTS stand for?
Plain Old Telephone Service
-
What does UTP stand for?
Unshielded twisted pairs
-
What is the minimum wiring grade for structured wiring
Cat-5e
-
For an RJ11 plug, which wires are tip, and which are the ring?
- Tip - Secondary color with primary marks
- Ring - Primary color with secondary marks
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What are the two most common types of coax cable?
-
What is a dielectric element used for?
Supports an electrostatic field in a coax cable
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When working with a split M-block, what blade would you need for your punch‐down tool?
66 blade
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How many positions are in an RJ45 and an RJ11 plug?
- RJ-45: 8 positions
- RJ-11: 6 positions
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What is a modular crimp tool used for?
Making modular Crimp connections
-
What information will an eight‐position data modular tester provide?
- Opens
- Shorts
- Cross pairs
- Good cable
-
What is the common name for an amplifier probe / tone generator?
Fox and Hound
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Why do we typically not use higher than a 70V system in the US?
Conduit
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What setup will give you the least coverage?
Edge to Edge
-
What are some other names for constant voltage systems?
- Distributed systems
- 70V systems
-
What are some places that constant voltage systems are used?
- schools
- factories
- malls
- convention center
- restaurants
- stadiums
- office
- stores
-
Where did the idea of constant voltage systems come from?
The power company and power distribution
-
What are some different types of amplifiers used?
- Autoformer,
- direct drive,
- constant voltage
-
How many speakers can you put into a system?
- Based off of how much power you're pulling
- Can't exceed the max power output of the amplifier
-
What are some other factors that will contribute to power loss?
- Insertion loss
- Cable length and gauge
-
What are the common voltages used?
-
What is the general rule when dealing with power?
Don't exceed more than 80% of total power of the amplifier
-
Which setup will offer the most overlap?
Center on center
-
What are some other pieces of gear you can use?
- Autoformer
- Mixer Amplifier
- Auto-mixer
- Music on hold
-
What company developed T568A and T568B wiring standards?
AT&T
-
What is the maximum distance for 568UTP copper cable set by the EIA?
100 METERS
-
What kind of wire is used to supply power to a CCTV camera?
18-2
-
Where do IR emitters need to ultimately be placed?
with the control device
-
What is the difference between 802.11A and 802.11G wireless protocols?
-
What is a gigabit?
1 billion bits / 1000 mbits / 1000 base t
-
What are the disadvantages of daisy chaining devices?
- splices
- poor signal strength
- troubleshooting
-
What are the three television standards
-
How many different colors can be supported by a single chip and three chip DMD?
- 16 million single chip
- 35 trillion for 3 chip
-
What is the big advantage of LCD over Plasma?
- less chance of image burn-in
- no recharge
-
What is the advantage of Plasma over LCD?
- large format
- less expensive
-
What are some methods of analog video distribution?
- Splitter
- Combiner
- Tap
- Distribution Amplifier
- RF Modular
-
What is needed for digital video distribution?
A/D converter
-
What does VESA stand for?
video electronics standard association
-
What does VESA do?
Set standards for computer based video
-
What does CCTV stand for?
Close Circuit Television
-
Difference between Splitter & Tap
tap has Uneven power outputs
-
LNB
- Low Noise block-down converter
- 4 cables
-
-
What is CAN and OOH?
- CAN = Captive Audience Network
- OOH = Out of Home
-
What were some past methods of gathering information?
-
What are some categories of digital signage?
- Large Outdoor Displays
- Transport Related
- Business to Business (Corporate)
- Room Signage (Hospitality)
- Retail
- Education
- Government
- Health Care
-
Who is the largest user of digital signage?
Retail
-
What are dwell points
Places that customers will be for an extended period of time.
-
Name the components that make up a digital signage system.
- Network
- Display
- Media Player
- scheduler
- content
-
What are some types of common displays that are used?
- LCD
- Plasma
- Projector
- LED boards
- Interactive
-
What is the purpose of a scheduler?
Tells the player when to play certain content at a certain time.
-
Name the common types of content.
- Video,
- stills,
- ticker,
- audio,
- HTML,
- animation
-
What is one of the most important things to think about when designing a system?
Does the sign have value to both the audience and the operator?
-
What are ROI and ROO?
- ROI = Return on investment
- ROO = Return on Objective
-
What is TCO?
TCO = Total cost of ownership
-
What are the phases in an installation project?
- Program Phase
- Design Phase
- Construction Phase
-
What are the different teams involved in an installation?
- Owners
- Design team
- Installation team
- Management team
-
What is needs analysis?
Determine the nature of the system, infrastructure, and system budget.
-
What is benchmarking?
Going to a similar facility to find out what they are doing with the AV system.
-
What should be included in the programming phase report?
- Executive summary
- System description
- Infrastructure
- Special issues
- Preliminary budget
- Cost breakdown
-
What is infrastructure?
- The architectural elements of a building.
- - Space plan
- - Screen locations
- - Seating locations
- - Conduit runs
-
What are some of the forms you might have to use?
- Letter of Transmittal
- Request for Information (RFI)
- Requests for Change (RFC)
- Change Orders (CO)
- Construction Change Directive (CCD)
-
What is a one‐line drawing?
- simplified representation of the system
- signal FLOW DIAGRAM
-
Which phase do you actually buy the equipment?
construction phase
-
What are some environmental standards OSHA suggests for the job site?
- Temp: 68-76 degrees F
- Humidity: 20-60%
-
What is a punch list?
A list of tasks that need to be completed according to the contract
-
What are the four main parts of the ear?
- Outer ear
- Middle ear
- Inner ear or Cochlea
- Auditory Nervous System
-
What is the difference between Conductive and Sensorineural Hearing Loss?
- Conductive: Sound is prevented from entering the ear
- Sensorineural: Damage to the cochlea or nervous system
-
What is tinnitus?
Ringing in the ears due to damaged or broken hairs in the cochlea
-
What is an otoscope used for?
Examination of the middle and outer ear
-
What are the different kinds of hearing aids that are available
- Open fit
- Behind the ear
- In the ear
- In the canal
- Completely in the canal
-
What are the different kinds of implants that are available?
- Cochlear Implant
- Bone-Anchored Hearing Aid
- Middle Ear Implant
- Auditory Brainstem Implant
-
How does a telecoil work?
takes a magnetic field that is outputted by a device and translates it into sound
-
What is the biggest drawback of an infrared system?
Requires line of sight to work
-
How does an induction loop work?
Transmits an electromagnetic wave that can be picked up by a telecoil or induction receiver.
-
How many channels does Pro‐Logic support?
4
-
What is a 5.1 system?
5 channels of audio with 1 LFE channel
-
What was the first film to use surround sound?
fantasia
-
What is required for a system to be THX certified?
- Physical structure
- Projection system
- Seating arrangement
- Sound system
-
What are some of the THX standards that theaters must satisfy to attain certification status?
- Noise and distortion levels
- Sightline ratios
- Equipment caliber
- Meet LUCAS FILM standards
-
How did Dolby put digital audio on to a filmstrip?
they put audio between the sprocket holes
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