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BICSI RCDD > * Chapter 3: Telecommunication Spaces > Flashcards

* Chapter 3: Telecommunication Spaces Flashcards

1
Q

Telecommunication Spaces are..

A

The rooms and areas where telecommunication cabling systems are terminated, cross connected and interconnected to installed telecom equipment.

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2
Q

Minimum TR ceiling height

A

Minimum 8’ AFF (2.4meters). Ideally 10’

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3
Q

Are drop ceilings recommended for TRs?

A

No, only if an underfloor distribution method is used

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4
Q

How much space should be allocated for the installation and maintenance of all cabling and equipment mounted on walls, racks, cabinets or enclosures?

A

3.28 Feet or 1 Meter

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5
Q

Provide at least ____ depth off the wall for wall mounted equipment

A

6 inches

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6
Q

Provide space for an isle of at least _____ wide in the front and in the rear of the space for each equipment rack, cabinet and enclosure.

A

3.28 Feet or 1 Meter

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7
Q

When installing racks, in corners a minimum of _____ side clearance is recommended.

A

12 inches

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8
Q

True or False: Clearance is measured from the outermost surface of any devices, hardware, cables, etc that installed in racks, cabinets, enclosures or backboards.

A

True

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9
Q

Trays and conduits located within the ceiling of a TR should protrude into the room a distance of ____ to ____ with a bend and above ____ high.

A

Trays and conduits located within the ceiling of a TR should protrude into the room a distance of (1 inch) to (2 inch) with a bend and above (8ft) high.

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10
Q

How many sleeves are recommended to serve a TR, ER or EF

A

At least four (4 Trade Size)

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11
Q

TR Door Guidelines / Recomendations

A

At least three ft wide and 6.5 ft high if lockable.

Double doors are recommended for ER’s 6 ft wide by 7.5 ft high

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12
Q

T/F - TR Doors should have the same fire rating as the walls in the room

A

True

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13
Q

Dust and static electricity should be avoided by:

A

Installing antistatic floor tile or grounded floor tiles and mats bonded to ground using manufacturer recommended hardware

Placing printers outside of TRs

Treating floors, walls and ceiling to minimize dust. (should be recommended by the GC or Building Contractor)

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14
Q

A TR should contain minimum of _____ dedicated, nonswitched ac receptacles for equipment power, each on individual branch circuits.

A

Two dedicated ac receptacles

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15
Q

Non switched receptacles

A

Not controlled by a wall switch or other occupancy sensor that may lead to inadvertent loss of service

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16
Q

TR HVAC should

A

maintain a continuous and dedicated environmental control. If emergency power is available, the ITS designer should consider connecting it to the HVAC system that serves the space

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17
Q

T/F Telecom Spaces should be located above any threat of flooding

A

True

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18
Q

T/F Liquid carrying pipers shall not be routed through, above or in the walls encompassing the telecom space

A

True

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19
Q

Floor load rating for a TR

A

50 pound force per sqft. lbf/ft2

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20
Q

Where should light switches be located in TR’s

A

Near the entrance. Dimmers and vacancy sensors are not recommended

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21
Q

TR Lighting

A

Should not come off same circuit as telecom equipment

One light set on normal power and one on emergency power

Use a light colored finish on walls, floors and cabinets to enhance room lighting

22
Q

Provide a minimum of ___lux (_____ foot-candles) at the point of cable termination

A

538 lux.. 50 foot-candles

23
Q

Light fixtures in TR should be a minimum of ____m or ____ft AFF when possible

A

2.6m 8.5 ft

24
Q

Telecom Spaces in a multi floor building should be aligned ________

A

vertically (stacked)

25
Q

Likely sources of EMI include

A

electrical power transformers

copiers

door openers

elevator systems

factory equipment

26
Q

Telecom space sizing guidelines for horizontal cabling distribution are based on distributing telecom services (drops) to one individual work area per ______sqft

A

100 sqft of usable floor space

27
Q

What should be the minimum size of the TR if the space is 5,000sqft or less?

A

10ft X 8ft

28
Q

What should be the minimum size of the TR if the space is between 5,000 and 8,000 sqft?

A

10’X9’

29
Q

What should be the minimum size of the TR if the space is between 8,000 and 10,000 sqft ?

A

10’X11’

30
Q

TF: The installation of active equipment is not recommended in shallow rooms because many types of active equipment require environmental controls and a depth of at least 1m or 3.28ft

A

True

31
Q

Shallow rooms serving areas of 1000 sqft or less should be at least…

A

2’X8.5’

32
Q

Walk in rooms serving areas less than 5,000 sqft should be at least..

A

4.5’x4.5’

33
Q

For retrofits, if the minimum room sizes cannot be met, ____D x____W x____H should be provided with double doors or sliding doors for every _____, 4 pair cable terminations served

A

4’ x 6’ x 8.5’

240

34
Q

Space allocation for..

Balanced Twisted Pair

Fiber

A

4 sq inches per cable to be patched or cross connected

2 sq inches per fiber strand/core to be patched or cross connected

35
Q

Examples of corrosive, combustible or explosive materials which should never be stored in TR

A 
Cleaning chemicals
Office and computer supplies (paper, cardboard, copier/print fluids.)
Grounds keeping chemicals
Gas and other fuels
Hazardous Materials (asbestos)
36
Q

A clear space or ___ to ____ inches above and below the top and bottom of the connecting hardware should be left for cable handling

A

5 to 6 inches

37
Q

Racks, cabinets or enclosures are recommended to have a height of _____ and have a rail size and top flange width of ____

A

7’ and 19”

38
Q

Mounting holes on racks and whatnot should consist of two equipment holes ____ inches apart per ru with ____ inch of space between ru’s

A

1.25in and .50in

39
Q

When additional width is required for special equipment, racks/cabinets with a width of _____ inches should be considered

A

23 inches

40
Q

A TR is

A

an enclosed space (ROOM) for housing telecom equipment, cable terminations and cross connects

41
Q

A TE is

A

a case or housing for telecom equipment, cable terminations and cross connects

42
Q

Types of cabling facilities that may be housed in the TRs include

A

HC - Horizontal Cross Connect
IC -
MC -

43
Q

The primary function of the TR and TE is to

A

house the horizontal cross connects.

Though. it may also include backbone cabling, active equipment and more

44
Q

If the building is smaller than ____, it may be served by shallow rooms.

A

5,000 sq ft

45
Q

If the building is smaller than _____, it may be served by wall cabinets, self-contained cabinets, or enclosed cabinets.

A

1,000 sq ft

46
Q

How much space should be allocated for each 4-pair balanced twisted pair circuit to be patched or cross connected?

A

4 sq in
Note when cabling requires surge protection, the recommended space allocation is two to four times larger than this for cross-connections

47
Q

How much space should be allocated for each optical fiber core/strand to be patched or cross connect?

A

2 sq in
Note: this space allocation is also appropriate for coaxial cable
Note when cabling requires surge protection, the recommended space allocation is two to four times larger than this for cross-connections

48
Q

Define a telecommunications Enclosure (TE)

A

A TE is a case or housing for telecommunications equipment, cable terminations, and cross-connect cabling. Typically limited to Horizontal Cross-connect (Floor Distributors)

49
Q

There should be at least one TR or ER per floor. If the usable floor space to be served exceeds ____, consider additional TRs.

A

10,000 sq ft.
Also will need more TRs if the cable length between the Horizontal Cross-connect and the telecommunications outlet location, including slack, exceeds 295ft.
For TRs that serve areas of office of less than one work area per 100 sq ft, a TR may serve larger areas than the 10,000 sq ft, provided the horizontal cable length requirements are met.

50
Q

The size and number of conduits or sleeves used for backbone pathways depend on the usable floor space served by the backbone distribution system. However at least ____ sleeves are recommended to serve a TR, ER, or EF.

A

(4) 4”

BICSI RCDD (22 decks)

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