Ch. 7 - Telecommunications Spaces.csv Flashcards Preview

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Flashcards in Ch. 7 - Telecommunications Spaces.csv Deck (84):
2

Name the four telecom spaces:

Telecommunications Enclosure (TE)
Telecommunications Room (TR)
Equipment Room (ER)
Entrance Facility (EF)
(7-1)

3

Locate noise-generating equipment (e.g, photocopy equipment) _______ the telecommunications space.

outside
(7-2)

4

TR ceiling standard height =

8'
(7-4)

5

TR ceiling choice height =

10'
(7-4)

6

Maintenance clearance for equip on walls, racks =

3.28'
(7-4)

7

Wallmount equipment depth =

6"
(7-4)

8

Aisle space =

3.28'
(7-4)

9

Racks & cabinet space =

3.28' x 3.28' x 7.5'
(7-4)

10

Corners side clearance =

12"
(7-4)

11

Sleeves, slots & conduits should be located ______________

on the left side of the room
(7-5)

12

Trays & conduit protrude from ceiling

2"
(7-5)

13

EMT also called

Thin wall
(7-7)

14

Lightest weight steel conduit made

EMT
(7-7)

15

Generally, the thread protectors for 1/2", 2 1/2" and 3 1/2" RMC steel conduit are color coded:

yellow
(7-7)

16

Doorway openings =

3' W x 6'.5" H
(Kobe is 6'.5" & shoots 3 pointers)
(7-9)

17

Double door opening

6' W x 7'.5" H
(7-9)

18

Doorsills =

not recommended
(7-9)

19

Doors should open

outward
(test)
(7-9)

20

Doors should be installed

to eithier slide side-to-side or be removable
(7-9)

21

**Min. power requirements for a telecom space

-2 dedicated outlets (min.)
-Located @ least 6" AFF
-Placed @ 6' intervals around perimeter walls
-@ least (1) on emergency power, if avail.
(test)
(7-10)

22

TR temperature & humidity WITHOUT active equipment

95°F & 85% humidity
(test)
(7-11)

23

**TR temperature & humidity WITH active equipment

77°F & 55% humidity
(test)
(7-11)

24

*TE/TR/ER/EF air change frequency

1 air change per hour
(test)
(7-11)

25

*Tunnel air change frequency

3 air changes per hour
(test)
(7-11)

26

*Battery room air change frequency

4 air changes per hour
(test)
(7-11)

27

Fire extingusher placement

as close to entrance as possible
(7-12)

28

TR sprinkler heads

wire cages
(7-12)

29

TR wet pipe systems

drainage troughs
(7-12)

30

TR wall covering

2 coats of paint
(7-12)

31

Locate light switch

near the entrance
(7-13)

32

Coordinate lighting layout with

equipment layout
(7-13)

33

Minimum lighting @ point of cable termination

500 lux (50 foot candles)
(Latiffe, too much light)
(test)
(7-13)

34

Locate light fixtures

minimum of 8.5' AFF
(7-13)

35

TR space should be at ____________ height to avoid scaffolding & ladders

standard working
(7-14)

36

Size guidelines: TR serving 5,000 ft² or less

10' x 8'
(7-15)

37

Size guidelines: TR serving >5,000 ft² to 8,000 ft²

10' x 9'
(7-15)

38

Size guidelines: TR serving >8,000 ft² to 10,000 ft²

10' x 11'
(7-15)

39

A building may be served by a shallow room if its smaller than _______.

5,000 ft²
(7-16)

40

A building may be served by a wall cabinet if its smaller than ________.

1,000 ft²
(7-16)

41

Walk-in rooms must be at least

4' x 6'
(7-16)

42

Shallow rooms must be at least

2' D x 8.5' W
(7-16)

43

Space for balanced twisted pair =

4 in² for each 4 pair circuit
(test)
(7-17)

44

Space for fiber =

2 in² for each strand
(test)
(7-17)

45

A clear space of ___ to ___ above & below the top & bottom of the connecting hardware for cable handling.

5"-6"
(7-19)

46

Corners result in _____ of lost space.

12"
(7-19)

47

Plywood

at least 2 walls lined 8' x 3/4"
kiln dried to 15%
(7-20)

48

Mount plywood at least _______ AFF with _______ exposed.

8" / Grade A side
(7-20)

49

TR's and TE's provide an environmentally suitable and secure area for installing:

Cables
Cross-connects
Hardware
Telecommunications equipment
(7-21)

50

A TR is an enclosed ___________.

architectual space
(7-22)

51

A TE is a _______ or _________.

case or housing
(7-22)

52

Every building is served by at least one _____, with a min. of one _____ per floor.

TR or ER; TR
(7-22)

53

How many TR's per floor?

At least one per floor per building
No limit
(7-22)

54

A TR serves a _________.

floor area or person
(7-22)

55

An ER serves a _________.

other buildings
(7-22)

56

Full size TR max __________. Small TR max ________.

480, 4-pair terminations
240, 4-pair terminations
(7-26)

57

TE door =

hinged or removable
(7-29)

58

TE minimum power

one dedicated
(7-29)

59

**Lighting requirement for a TE?

min. of 500 lux (500 foot candles)
(always the answer in every room)
(test)
(7-30)

60

Pathways ___________ pass through TE's.

must not
(it's a case, not a room)
(7-30)

61

TE's should serve an area not greater than _______.

3,600 ft²
(7-30)

62

ER's, EF's & TR's can?

serve as one another
(7-31)

63

ER description & function

enviromentally controlled space & serves other buildings
(7-31)

64

ER's differ from TR's in that ______ whereas ___________

ER's serve a bldg, campus, tenant or SP.
TR's serve a floor area of a bldg.
(test)
(7-31)

65

An ER should be placed in a location that minimizes the:

Size & length of the backbone cables
Length of the horizontal cable
(7-37)

66

Locate the ER

in the center of campus
10th floor of a 20 story bldg
always in the middle
(7-37)

67

If seperate access provider (AP) space is required, it should be ______ or ______ to the EF.

in or adjacent to
(7-37)

68

A seperate AP space may require a

mesh partition or cabinet
(7-37)

69

A space of at least ______ x______ should be allocated for each AP.

4' x 6'
(7-37)

70

An equipment room must meet the space requirement specified by the:

Equipment provider(s)
(7-41)

71

An ER must include space for:

environmental control equipment
power distribution/conditioners, and
UPS systems
(7-42)

72

If usable floor space is unknown while figuring an ER then:

deduct 20%
(7-43)

73

**Steps to determine minimum size of an ER?

1. Divide amount of usable floor space by 100 ft² for the number of individual work areas.
2. Divide amount of total floor splace by 250 ft² to determine BAS devices.
3. Multiply WA's served by 0.75 ft² & BAS by 0.25 Ft² to get the ER size.
(7-43)

74

**ER / WA math for test - Q: 55 WA's x 0.75 ft² =

A: 41.25 (41)
(7-43)

75

Typical cabinet requires how much space?

10 x 10 ft²
(7-44)

76

Most ER's include _________.

work areas.
(7-45)

77

The most common methods for routing cable through equipment room wall and floors are:

Sleeves and slots
(7-49)

78

*Circular sleeves are preferred because?

easier to fire caulk
(test)
(7-49)

79

HVAC sensor height?

5' AFF
(7-54)

80

Environmental control requirements for an ER:

77F
55% humidity
5,000 BTU
(ER's always have active equipment)
(7-54)

81

To keep dust & static electricity to a minimum in ER's, you should install?

tile instead of carpet
(7-55)

82

Floor loading of equipment cabinets in an ER vary from

50 - 250 lbf/ft²
(7-55)

83

ER floor rating under distributed load

must be greater than (100 lbf/ft²)
(7-55)

84

An EF is an entrance to a building for _________ network service cables, including wireless.

both public and private
(7-59)

85

Test Oct - In a TR which value would not be correct?

Temp 77° Humidity 59%
(I picked normal temp, high humidity)