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Structured Cabling Systems Cards Flashcards

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1
Q

What is an AP

A

A company that provides a physical( copper or optical fiber cabling) or wireless circuit path to the site

Examples of companies( telephone, local exchange carrier, broadband services and CATV)

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2
Q

What does the term mechanical termination refer to?

A

All optical fiber and copper terminations

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3
Q

Name the two types of back bone cabling

A
  1. Interbuilding backbone: this type of back bone cabling distributes telecom services between buildings and is referred to as cabling subsystem 2 or cabling subsystem 3
  2. Intrabuilding backbone cabling distributes telecom services between telecom spaces (ER,TR) within a single building and is referred to as campus cabling
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4
Q

What is subsystem three

A

A back bone that has cabling installed between an Mc( CD) and an IC(BD) or an HC(FD)

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5
Q

Subsystem two?

A

A back bone cable installed between an IC(BD) and an HC(FD)

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6
Q

What does a structured cabling system (SCS) include?

A
  1. Backbone cabling and associated pathways
  2. Horizontal cabling and associated pathways
  3. Cross connection facilities
  4. Work areas
  5. CPs
    6.MUTOA’s
  6. Interconnection facilities
  7. telecom outlets/ connectors
  8. TP’s
  9. Centralized cabling
  10. Distributed cabling
  11. Admin (ex labeling, documentation)
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7
Q

What does the term backbone mean?

A

It’s given to cabling and the other things that are used between the spaces within an ICT systems cabling structure

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8
Q

What are the main components of backbone cabling?

A

1.Cabling pathways- raceways, cable tray, penetrations ( sleeves or slots) and cable supports like j hooks
2. Cables- optical fiber, balance twisted pair, coaxial, or a combination of these
3. Connecting hardware- connecting blocks, patch panels, interconnections, cross-connections, patch cords, equipment cords.

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9
Q

What do these abbreviations mean?
HC(FD)
IC(BD)
MC(CD

A

HC(FD)- horizontal cross connect (floor distributor)
IC(BD)- intermediate cross connect (building distributor)
MC(CD)- main cross connect ( campus distributor)

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10
Q

What are the main components of back bone cabling?

A

1.Cabling pathways-raceways, cable trays, penetrations( sleeves or slots) and cable supports like j hooks
2. Cables- optical fiber, balance twisted pair, coaxial, or a combination of the three
3. Connecting hardware- connecting blocks, patch panels, interconnections, cross-connections, patch cords, equipment cords.

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11
Q

Name the types of backbone cable

A

1.100-ohm balanced twisted pair copper cable
2. 75-ohm coaxial cable
3. Multimode optical fiber cable
4.Single mode optical fiber cable

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12
Q

What is cat 3 cable available in?

A

4 pair through 2700 configurations

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13
Q

What is cat 5e commonly available in?

A

4 pair and 25 pair configurations

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14
Q

What is the maximum allowable horizontal cable length?

A

295 ft or 90 meters

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15
Q

For some applications what length is some cabling media such as cat 8 cable limited to?

A

A length of 98 feet or 30 meters

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16
Q

What amount of of telecom outlet/connectors is recommended per work area?

A

A minimum of two

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17
Q

What should you consider when selecting horizontal cabling?

A
  1. Maximum cable length. like cat 8 is at most allowed to be pulled 98 ft or the max length
  2. Overall sheath or jacket on the cable( depending on environment you’ll want different ones).
  3. Pathways your cable is taking
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18
Q

What should the cable being provided to a single work area consist of?

A

Telecom outlets/ connectors that are connected to 4 pair 100ohm cat 5e minimum cable. And either two or more strands of single mode or multimode optical fiber

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19
Q

How many systems does an ict system utilize at a time

A

3-4

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20
Q

What should be done To make sure the minimum performance of the cable channel of the installed cable

A

Make sure any connecting hardware and equipment cords ( like patch cords and cross connect jumper wires.) meet the same or higher performance of the previously installed cable

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21
Q

What is a patch cord?

A

They’re cords of smaller lengths of cables with connectors at both ends that allow the connecting of equipment to an outlet or the interconnection of equipment and patch panels.
They usually have 8p8c modular plugs

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22
Q

What does MPTL stand for and what is it?

A

It stands for Modular plug terminated link

The mptl replaces the jack at the work area end of the horizontal cable with a field termination device, after this happens the work area equipment cord isn’t needed anymore

Also it is critical on aps that the installer must check that there’s enough space at the equipment port for the larger plug

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23
Q

How must all connections between back bone and horizontal cabling be done ?

A

Through cross connections

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24
Q

When multi port equipment connections attach to horizontal or back bone cabling what is required?

A

Cross connections

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25
What applies to interconnections?
1. Equipment cords are interconnected to horizontal or back bone cabling terminations 2. Direct interconnections reduce the number of connections required to configure a link but that may reduce flexibility
26
What is an mptl and what does it do?
An MPTL is what replaces the jack on the cable at the work area end of a horizontal cable with a field terminated plug.
27
Because some of these plugs are physically larger than the typical equipment/ patch cord what must the installer check for( espically on waps)
The installer must check that there’s enough space at the equipment port to accommodate the larger plug
28
What are the two types of cross connections
Patch cords( like balanced twisted pair) connect between termination fields. and jumper wires( balanced twisted pair cabling in multiples of 1-pair, 2-pair, 3-pair, and 4 pair
29
What applies to all interconnections?
1. Equipment cords are interconnected to horizontal or back bone cabling terminations 2. Direct interconnections reduce the number of connections required to configure a link but this can reduce flexibility
30
COLOR CODING FOR CABLE COLOR
Orange- demarcation point Green- network connections Purple- common equipment ( like a mainframe computer) *white/silver White- cabling subsystem 3( termination of building back bone cable connecting MCs to ICs, formerly referred to as first level back bone) *purple Gray- cabling subsystem 2 ( termination of building back bone cable connecting ICs to HCs , formerly referred to as second level back bone) Blue- cabling subsystem 1 cable in ts( horizontal connections to telecom outlets/ connectors) Brown- (BROWN IN GROUND) campus cabling that takes precedence over white or gray for interbuilding runs Yellow- security
31
What all does a “work area” include?
They include the components that extend from the telecom outlet/connector to end user equipment
32
What should you keep in mind when planning for work area cabling?
1. Equipment cords are designed with to provide easy route changes 2. The MAXIMUM permanent link horizontal cable length is 295ft or 90m 3. The max equipment cord length in the work area is 5m or 16.5ft with some exceptions ( like a MUTOA) 4. Equipment cords need to match connector types for outlet jacks being served
33
For modular furniture inserts what must the installer do with them to maintain the furniture?
The installer must maintain the required partition between power cabling and telecom cable. They should also make sure the inserts will fit the brand of jack specified as some inserts are manufacture specific
34
What does UTC stand for?
It stands for under carpet telecommunications cable
35
Why shouldn’t UTC cable be the first choice?
-It’s susceptible to damage - limited flexibility for moves, adds and changes But the installer should coordinate with the designer to define a specific zone distribution layout to determine the location where the shorter sections of utc interconnect to the standard horizontal cable media
36
Where should TPs be located in a postion to limit the length of utc
Generally less than 10m or 33ft
37
What is a CP and what does it do?
A cp is a horizontal cabling intersection device permanently installed close to telecom outlets/ connectors. It provides a convenient method for termination of horizontal cabling when required by rearrangement of modular furniture systems layouts
38
How many CP’s should each open furniture cluster have
One cp should serve it
39
What is a MUTOA
It’s a specialized multi-user telecom outlet assembly located in work area clusters. MUTOAS are suitable for use in open office spaces that are frequently reconfigured. A MUTOA allows horizontal cabling to remain intact while the open office plan is changed
40
How many mutoas should serve a open office furniture cluster
At least one
41
Name the 4 classes of SCS administration
1. Class 1 addresses the needs of premises served by a single ER, which is the only telecom space on the site 2. Class 2 addresses infrastructure with one or more telecom spaces in a single building 3. Class three addresses infrastructure with multiple buildings at a single site (Ex. Campus environment) 4. Class four addresses infrastructure with multiple sites or campus’s
42
The administration system for each class includes what requirements
1. Identifiers 2. Records 3. Labeling
43
What document is advisable to obtain if the labeling scheme is based on the customers requirements
A cut sheet would be needed
44
name the types of network topology
bus, tree, ring, start, hierarchal
45
what type of network topology is used to install back bone cabling
hierarchal
46
what does topology refer to
an items topology refers to its features, physical appearance, and shape.
47
within the context of LAN what are the two meanings topology takes on
1. topology refers to the physical appearance of the LAN also known as physical topology 2. topology also refers to how the LAN functions. This logical topology is determined by how the messages are transmitted from device to device
48
BUS topology definition
It is a linear configuration that places all the network devices on one length of cable; like stops on a city bus route
49
Tree topology has what kind of cable?
an AUI cable
50
ring topology definition?
a ring topology places all the network devices in a circle
51
in a structured cable system what kind of topology is required
STAR TOPOLOGY
52
Hierarchal Star topology?
Its an extension of star topology In this configuration, departmental network devices are connected to a switch as in star topology. These switches are then connected to each other in a star topology via a central hub, following a star configuration. This is the recommended topology for structured cabling back bone distribution systems in buildings and in campus environments. Note: they are sometimes referred to as cluster stars
53
What is a pan and what does pan stand for?
PAN stands for personal area network and they are generally associated with an individual work space
54
What does LAN stand for? And what does it cover
LAN= Local area network and it covers an area generally associated with some or all of the spaces within a building
55
What does CAN stand for and what does it do
CAN= Campus Area network and it is created by linking the LAN's located in two or more buildings that are near each other. A Can is more commonly known as a Campus LAN
56
What will telecom spaces and work areas normally have?
workstations, servers, switches, and routers
57
What terms are usually used to describe work stations?
thin client, virtual desktop, network appliance, and managed computer
58
at a minimum what will a work station provide?
it provides the user with necessary interfaces for input ands display
59
What is a server?
A device that manages one or more resources shared by work station users and amins on a network
60
What features are a server normally equipped with?
- Multiple processors -Multiple NIC's - Secondary power supply and fans -More expansion and higher performance slots and memory capacity -Greater Storage Capacity - Improved storage management -Improved backup and archiving -Ability to replace failed components without powering off the device -Improved management and remote monitoring
61
What is server visualization?
It lets one physical server run multiple independent virtual servers, saving space and making management easier
62
What is a switch?
a switch is a network device that provides a centralized point for LAN communications, media communications and management activities. Each port on a switch is a separate communications channel reping a different domain
63
What is a Router
a router is a combination of hardware and software, typically in the form of a specialized device
64
What does UC stand for and what does it do:?
UC= Unified Communications and it is the convergence of VoIP tech with soft phone capabilities, PTP video comms, instant messages like texting and presence ( real time status indicator)
65
What does video communications enable users to do?
it enables users to send and receive motion video as a data stream with or without audio or other content.
66
Name the types of UP'S
- Static: -off-line or standby UPS units -Line-interactive UPS units -one line double conversion ups units •rotary •flywheel •modular
67
name the types of batteries
alkaline, vented led acid aka flooded lead-acid
68
What are batteries used for ?
they are used to provide power to ICT and SCS cable systems
69
How many classes of Data centers are there?
4 -class 1 the single path data center -class 2 the single path data center with redundant components -class 3 the concurrently maintainable and operable data center -class 4 the fault tolerant center
70
Note
As the number increases so does the amount of redundant cabling, components, and systems to where a class 4 data center often contains two separate infrastructures with their own set of redundant components
71
name the key areas of a data center
computer rooms and telecom rooms
72
what does an MDA have in it
the room that has the main cross connect
73
What is an HDA
the room that contains the horizontal cross connect
74
for fiber what is a common amount of ports to find from equipment mounted within a typical cabinet or rack
150-200 ports
75
what is a common amount of ports equipment mounted in a rack has
4-12 the max per ru- rack parts allowed is 72
76
Are data center owners allowed to change control requirements
yes
77
what does an entrance facility have in it?
the telecom service entrance to the building including the entrance through the building envelop
78
an EF may provide
A demarcation point between the AP's and the SP's and customer premises cabling if required space to house transitioning of osp cabling entering the building to approve for spaces within buildings
79
where does osp cable enter and get terminated within the building
the enter and terminate through the EF typically loctaed close to the ER
80
what are the types of ways you can get into the ef
under ground, tunnel, buried , aerial, and wireless
81
what are the advantages of using a buried entrance
preserve the aesthetic appearance of the building \ usually have a lower initial cabling installation cost than an underground installations can easily bypass obstructions compared with underground entrances
82
name advantages of aerial entrances
usually provide lowest installation cost are readily accessible for maintenance
83
when do you use the existing ER
its typically used by a WSP for connections to a DAS systems
84
what does an equipment room (ER) house
the equipment and servers that serve the entire building or campus and active equipment
85
how are TR's different than er's and ef's
they're usually floor serving
86
what is a TE
a telecom eclosure usually houses equipment, cabling terminations, and cross connect cabling
87
what is the max space a te can serve
335m squared or 3600ft
88
follow up of previous card on what a te is
- it is intended to support a dedicated local group of users -may require security measures -shall not be used in place of a tr but as an extension of a te -may contain power for active equipment -may contain fans -may be wall mounted. free standing or loocated in an exterior location
89
name the depths cable tray is manufactured in
50mm(2in),100mm(4in) and 150mm(6in)
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