Ch. 7 * (Telecommunications Spaces) Flashcards Preview

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Flashcards in Ch. 7 * (Telecommunications Spaces) Deck (60)
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Telecommunications Enclosure (TE)

Case

1

Telecommunications Room (TR)

Architectural space

2

Equipment Room (ER)

Environmentally controlled

3

Entrance Facility (EF)

OSP

4

Loud equipment should be located ___ the telecommunications space

Outside

5

Sleeves/slots should be located on the ___ side of the room

Left

6

Three types of steel conduit

Rigid metal conduit (RMC)
Intermediate metal conduit (IMC)
Electrical metallic tubing (EMT)
Except "black iron pipe"

7

EMT

Thin wall

8

EMT is the ___ weight steel conduit

Lightest

9

At least ___ 4" conduits should serve an ER, TR, EF

4

10

TRs on the same floor should be connected with at least ___ 3 inch conduit

1

11

Recommended door dimensions

3' X 6.5' - minimum
Double door recommended (slide side to side or removable)

12

Used to reduce static electricity

Antistatic floor tile

13

ER power provisions

Two dedicated duplex receptacles on individual circuits

14

HVAC should run

24 hours a day/365 days a year

15

Temperature of room that does not contain active equipment

95°

16

Rooms with active equipment should be kept at ___

77° and 55% humidity

17

Interchange per hour for TR

1

18

Air change per hour for tunnel

3

19

Air change per hour for battery plant

4

20

___ should be kept close to the entrance of the telecommunications space

Fire extinguishers

21

Telecommunication spaces should be located away from ___

Threats of flooding

22

Minimum lighting

50 foot-candles

23

Building less than 5000 sq'

Shallow room

24

Building less than 1000 sq'

Cabinet

25

Wall field sizing

4 sq" / balanced twisted-pair 4-pair circuit
2 sq" / optical fiber strand

26

Wire management spacing

5-6" above and below connecting hardware

27

Corners result in ___ of lost space

12"

28

Standard for racks, cabinets or enclosures

(ANSI/CEA) 310-E

29

TR's and TE's differ from ERs and EFs how?

They serve tenants as opposed to buildings or campuses

30

TRs or ERs should be located on every ___

Floor

31

One TR or ER for every ___ square feet

10,000

32

A full-size TR can support ___ 4-pair cables

480

33

A small TR can support ___ 4-pair cables

240

34

How many square feet does this room serve (2 racks)?

Less than 5000 sq'

35

TE doors may be?

Hinged or removable

36

TE service area

3,600 sq'

37

ERs should be located in the ___

Center

38

255 work areas
55 BAS devices
ER size ___

205 sq'

39

Typical equipment cabinets require ___ of floor area and ___ working clearance

10 sq' & 10 sq'

40

Recommended cable pathways entering TR

(4) 4" + spare if over 40,000sq'

41

Cable pathways entering ER

(5) 4"

42

Cable pathways entering EF

(5) 4" + (3) 2"

43

ER temperature

77°

44

ER humidity

55%

45

ER heat dissipation

5000 BTUs (British Thermal Unit)

46

HVAC sensors/controls located @ ___ AFF

5'

47

MC / HC

Main Crossconnect / Horizontal Crossconnect

48

The MC should be located ___

Close to the ER / center of building

49

Size of TR

5000 sq' - 8' x 10'
5000-8000 sq' - 9' x 10'
8000-10,000 sq' - 10' x 11'

50

TE power requirements

1 outlet

51

Standard working height means ___

No scaffold or ladder req'd

52

Avoid placing the TR near ___

Kitchens
Bathrooms
Janitor closets

53

Color code for 4", 5" & 6" conduit thread protectors

Blue

54

___ protect telecommunications systems from contaminants

Positive room pressure
Vapor barriers
Absolute filters

55

Recommended space height for rack, cabinet or enclosure

7.5'

56

ER minimum size

10' x 16'

57

Allow ___ more space for routing of cables, jumpers and patch cords

20%

58

Color code for 1", 2" & 3" conduit thread protectors

Orange

59

If usable space is unknown, deduct ___ % of the total floor area to estimate usable floorspace

15%