Card Set Information
What is the color code order for UTP?
: blue, orange, green, brown, slate
: white, red, black, yellow, violet
What color pairs are used for transmit in four-pair UTPT568a?
Green, Green/White pair
Transmits on pin 1 & 2
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?
Blue, orange, green, brown, and a white that corresponds to each
What is 16-4 wire used for
What are RJ45 modular plugs used for?
An F fitting is used for what type of wire
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
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
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
When working with a split M-block, what blade would you need for your punch‐down tool?
How many positions are in an RJ45 and an RJ11 plug?
: 8 positions
: 6 positions
What is a modular crimp tool used for?
Making modular Crimp connections
What information will an eight‐position data modular tester provide?
What is the common name for an amplifier probe / tone generator?
Fox and Hound
Why do we typically not use higher than a 70V system in the US?
What setup will give you the least coverage?
Edge to Edge
What are some other names for constant voltage systems?
What are some places that constant voltage systems are used?
Where did the idea of constant voltage systems come from?
The power company and power distribution
What are some different types of amplifiers used?
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?
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?
Music on hold
What company developed T568A and T568B wiring standards?
What is the maximum distance for 568UTP copper cable set by the EIA?
What kind of wire is used to supply power to a CCTV camera?
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?
A is 5 GHz
G is 2.4 GHz
What is a gigabit?
1 billion bits / 1000 mbits / 1000 base t
What are the disadvantages of daisy chaining devices?
poor signal strength
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
What is the advantage of Plasma over LCD?
What are some methods of analog video distribution?
What is needed for digital video distribution?
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
Low Noise block-down converter
Ntsc scan lines
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
Business to Business (Corporate)
Room Signage (Hospitality)
Who is the largest user of digital signage?
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.
What are some types of common displays that are used?
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.
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?
What are the different teams involved in an installation?
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?
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?
What are some environmental standards OSHA suggests for the job site?
: 68-76 degrees F
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?
Inner ear or Cochlea
Auditory Nervous System
What is the difference between Conductive and Sensorineural Hearing Loss?
: Sound is prevented from entering the ear
: 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
Behind the ear
In the ear
In the canal
Completely in the canal
What are the different kinds of implants that are available?
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?
What is a 5.1 system?
5 channels of audio with 1 LFE channel
What was the first film to use surround sound?
What is required for a system to be THX certified?
What are some of the THX standards that theaters must satisfy to attain certification status?
Noise and distortion levels
Meet LUCAS FILM standards
How did Dolby put digital audio on to a filmstrip?
they put audio between the sprocket holes