Integrate AV Solutions Flashcards

(65 cards)

1
Q

Class 1 Wire

A

Shock and Fire hazard exist. 600v or more

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2
Q

Class 2 Wire

A

Neither shock nor fire hazard exist. 150v or more

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3
Q

Class 3 wire

A

Not Fire Hazard, but shock hazard. 300v or more

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4
Q

Types of Cable (4)

A

Coaxial
Unshielded Twisted Pair
Shielded Twisted Pair
Fiber Optic

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5
Q

Coaxial Cable

A

Commonly used for RF and Video

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6
Q

Unshielded Twisted Pair

A

Hi Speed Data

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7
Q

Shielded Twisted Pair

A

Audio and Low Speed Data

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8
Q

Fiber Optic

A

Long Distance Audio, Video, Data

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9
Q

Signal Seperation

A

Physical Distance among cables of various signal levels

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10
Q

Stripping Cables

A

No more than 10% of strands in a wire containing more than 21 strands can be lost

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11
Q

Mounting Malfunctions (5)

A
Improper Calculations
Shear - break from wall
Tensile Strength - Hardware's Elasticity physically stretches
Pull Out
Placement of Bolts
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12
Q

Minimum Safety Factor

A

5

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13
Q

Mounting Types (3)

A

Floor
Wall
Overhead

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14
Q

Wall Mounting (2)

A

Can the wall withstand the weight of the load. Investigate wall construction
Will the weight of the load pull the assembly from the wall

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15
Q

Wall Blocking

A

Nogging, Dwang

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16
Q

Overhead mounting in concrete (2)

A

Poured Pan - waffle looking concrete

Post Tension - smooth with hi tension cables within (drilling into a cable in post tension concrete can snap)

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17
Q

Control Systems - HMI

A

Human Machine Interface

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18
Q

HMI Components (3)

A

Hardware
Software
Firmware

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19
Q

Hardware Components (4)

A

CPU
User Interface (touch panel, wall buttons)
Transmitters and Receivers
Interface Components

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20
Q

Ethernet

A

Transmits Data over LAN

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21
Q

LAN

A

Local Area Network

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22
Q

Ethernet Data Speeds (4)

A

10 Mbps
100 Mbps
1 Gbps
40/100 Gbps

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23
Q

Ethernet Transmission

A

Signals are transmitted serially, one bit at a time, over the shared signal channel

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24
Q

MANs

A

Metropolitan Area Network. LANs are connected together of over a Corporate Campus

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25
WANs
Wide Area Network. MANs and LANs are connected together within multiple cities.
26
Methods of controlling AV devices (5)
``` Infrared RF Contact closure RS-232 RS-422 ```
27
Infrared
Least desirable connection. No feedback.
28
RF
Required emitter and receiver. does not need to be in line of site. Typically wall or rack mounted.
29
Contact closure
switch. simplest form of remote control communication. opening and closing an electrical circuit
30
Types of Contact closure (2)
momentary - activate only when pushed. | latching - stay in on or off
31
RS-232
Max 50' cable length. limited to 115.2 Kbps. Unbalanced connection. allows feedback
32
RS-422
Max 4000' cable length. 10 Mbps. Balanced Connection
33
TCP
Transmission Control Protocol
34
Transmission Control Protocol (4)
Creates a verified connection with remote host before sending data. Reliable - tracks each packet to insure it arrives intact Most common protocol for sending data across internet supports ethernet network communication
35
Static IP address
Never changing IP address
36
Dynamic IP address
Changeable IP address
37
IP addresses
All devices in a network must have an IP address
38
Check box for "assign IP address"
Found in Network Configurations
39
DHCP
Dynamic Host Configuration Protocol
40
Dynamic Host Configuration Protocol
Will assign addresses | Device gets to keep address for a preset "lease time"
41
Static IP Address Use
Static IP addresses work well for devices that you want to reliable locate.
42
Static IP Address Input
If you don't have a DHCP service on a network you will need to set addresses manually
43
Reserved Static IP addresses
You may wont to reserve a set of static addresses for your AV devices. These addresses will be manually reserved on a DHCP server
44
Setting an IP Address Requirement (2)
IP Address | Subnet Mask
45
Device Identified by domain name requirements (3)
Device Domain Name DNS Server Gateway
46
DNS
Domain Name System
47
Domain Name System (3)
Server that keeps track of all your equipment on a network can call devices by name instead of numbers no two devices can have the same name on a system
48
DHCP and DNS
When DHCP and DNS servers are working togetheryou may never need to know the IP addresses
49
WINS
Windows Internet Network System. Behave similarly to DNS
50
Software in Control System (3)
System will not function without software. eg. In order to create a touch panel you need to have specific software You may need to load programs into control systems
51
Firmware in Control Systems (4)
Set of software Instructions that a machine follows Bridge between hardware and software Periodically updated You may be required to upload current firmware
52
Non-volitle Memory Chip
Won't lose info when power is removed
53
Power Control Systems - North America, Japan, Parts of South America (5)
``` 60 HZ 120v Single Phase 120/240v Single Phase 120/208v Three Phase 277/408v Three Phase ```
54
120v Single Phase
2 wires
55
120/240v Single Phase
Uses three wires. One wire with 120v, Another with 120v same phase. third is neutral. Used in hoes where load is small. Two legs of power can power appliances
56
120/208v Three Phase
In Commercial Buildings want AV equipment to come from one phase ideally Interconnect equipment form different phases can cause noise Uses 4 wires. Each hot caries it's own phase Any phase together result in 208v Transformer is called a Wye because "Y" shape
57
277/408v Three Phase
120/208v is easily derived from this system
58
Designing a Balanced Load
A large infrequently used AV system cannot be placed on one phase of a building's power system. The system would be unbalances
59
Power Control Systems - Rest of the world
230v single phase | 230/400v three phase
60
Series Circuits
Power seeks to return to its source. Voltage will divide across the registers as well as the wire in a circuit
61
Parallel Circuits
Current will take any and all available pathways | Voltage remains the same across all loads
62
Grounding (3)
Ground ensures the systems are stable, safe and reliable Primary objective is to limit human exposure to high voltage requires connecting one side of a circuit to the ground
63
What need to be grounded (2)
Anything powered by electricity Metallic elements that come in contact with electrical components - building frame, wiring conduit, raceways, equipment racks
64
Specifying Electrical Power
Ascertain Electrical Loads Required | Determine how power will be supplied and distributed
65
AMP =
AMP = Watts / Volts