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OLD RCDD flashcards > (OLD) €h 07 - Telecom Spaces > Flashcards

(OLD) €h 07 - Telecom Spaces Flashcards

1
Q

7-1 Telecom Spaces

Telecom Enclosure (TE) =
Telecom Room (TR) =
A
  • a case

* architectural spaces

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2
Q

7-1 Telecom Spaces

Equipment Room (ER) = 
Entrance Facility (EF) =
A
  • environmentally controlled

* OSP

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3
Q

7-2 Acoustic Noise Levels

acoustic noise levels =
2

A
  • photo copy equip.

* outside telecom spaces

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4
Q

7-4 ceilings

min. ceiling height =
consideration =

A
  • 8 ft

* 10 ft

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5
Q

7-4 clearances

clearances =
wall mounted equipment =
Corners =

A
  • 3.28 ft
  • 6 in depth
  • 12 in
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6
Q

7-5 conduits, trays, slots, sleeves and ducts

Sleeves, slots, and/or conduits =

A

Left side of room

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7
Q

7-5 conduits, trays, slots, sleeves and ducts

Trays and conduits =

A

Protrude 1 inch to 2 inch

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8
Q

7-5 conduits, trays, slots, sleeves and ducts

Three types steel conduits =

A

Except black steel/iron pipe

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9
Q

7-5 conduits, trays, slots, sleeves and ducts

EMT =
3

A
  • thin walled
  • unthreaded
  • lightest-weight steel conduit
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10
Q

7-5 conduits, trays, slots, sleeves and ducts

Sleeves, slots =

A

Not to be left open

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11
Q

7-5 conduits, trays, slots, sleeves and ducts

At least four =

A

(4 trade size) sleeves

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12
Q

7-5 conduits, trays, slots, sleeves and ducts

Interconnected =

A

(3 trade size) conduits

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13
Q

7–9 doors

Doorway lockable doors =

A

3 ft wide and 6.5 ft high

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14
Q

7–9 doors

ER doors =

A

Double door recommended

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15
Q

7–9 doors

Doors that open =

A

Outward provide additional usable space

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16
Q

7–9 doors

Door sills =

A

Not recommended

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17
Q

7–9 doors

Doors =
2

A
  • slide side to side
    Or
  • removable
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18
Q

7–9 dust and static electricity

Avoided by =

A

Tiles instead of carpet

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19
Q

7–10 electrical power

Minimum of two dedicated =

A

Non-switched AC

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20
Q

7–10 electrical power

Duplex or quad convenience receptacles =

A

6 in and 6 ft

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21
Q

7–10 electrical power

One receptacle =

A

Emergency power

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22
Q

7–11 environmental control

TR no equipment =

A

95°F 85%

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23
Q

7–11 environmental control

TR housing equipment =

A

77°F 55%

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24
Q

7–11 environmental control

1 air change per hour =
3

A

TR
TE
ER

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25
Q

7–11 environmental control

3 air changes per hour =
4 air changes per hour =

A

Tunnel

Battery plant

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26
Q

7–12 fire protection

Portable fire extinguishers =

A

Close to the entrance as possible

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27
Q

7–12 fire protection

Wire cages =

A

Sprinkler heads

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28
Q

7–12 fire protection

Drainage troughs =

A

Wet pipe systems

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29
Q

7–12 fire protection

Wall linings =

A

Two coats of fire retardant

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30
Q

7–12

Q/A flood prevention =

A

Move TR to alternate location

31
Q

7–13 lighting

Light switches =

A

Near the entrance

32
Q

7–13 lighting

Coordinating the lighting layout =

A

Equipment layout

33
Q

7–13 lighting

Providing a minimum =

A

500lux (50foot-candles) measured at the point of cable termination

34
Q

7–14 safe and clean environment

Standard working height=

A

Avoid the use of ladder or scaffold

35
Q

7–15 size guidelines

5000 ft.² or less =

A

10ft x 8ft

36
Q

7–15 sizing guidelines

> 5000 ft.² to 8000 ft.² =

A

10ft x 9ft

37
Q

7–15 sizing guidelines

> 8000 ft.² to 10,000 ft.² =

A

10ft x 11ft

38
Q

7–16 sizing guidelines – smaller buildings

Walk-in rooms =

A

4ft x 6ft

39
Q

7–16 size guidelines – smaller building

Shallow rooms =

A

2ft x 8.5ft

40
Q

7–17 size guidelines termination space allocation

Balance twisted-pair =

A

4 in sq 4 pair circuit

41
Q

7–17 size guidelines termination space allocation

Optical fiber =

A

2 in.² Fiber Core/stand

42
Q

7–19 wall and rack, cabinets, or enclosure space for terminations

Clear space 5 in to 6 in =

A

Connecting hardware for cable handling

43
Q

7–19 wall and rack, cabinets, or enclosure space for terminations

Corners result in =

A

12in of lost space

44
Q

7–20 racks, cabinets, enclosures

(ANSI/CEA)-310-E =
^

A

Cabinets, racks, panels, and associated equipment

E = enclosures

45
Q

7–20 wall linings

At least two walls lined =
2

A
  • void – free plywood

* 8ft x 3/4in

46
Q

7–21 wall linings

Reduce warping plywood =

A

Kiln-dried to maximize moisture content of 15%

47
Q

7–20 wall linings

Mount plywood =

A

8in AFF to avoid damaging

48
Q

7–21 TR’s TE’s

TR & TE serves =

A

Serves tenants and floor area

49
Q

7–21 TR & TE

ER & EF serves =

A

Serves other buildings

50
Q

7–23 TR & TE applications

At least on TR or ER =

A

Serves every building

51
Q

7–22 TR and TE applications

Minimum of one TR =

A

Per floor

52
Q

7–22 TR and TE applications

No maximum number =

A

TR’s or TE that may be provided within a building

53
Q

7–24 TR guidelines

Q/A
20,000 ft.² serve =

A

2 TR design

54
Q

7–29 general TE’s

TE doors =

A

Hinged or removable

55
Q

7–29 general TE’s

TE electrical power =

A

Minimum one dedicated

56
Q

7–30 general TE

TE lighting =

A

Minimum 500 lux (50foot-candles)

57
Q

7–30 general TE

TE size and spacing =

A

3600 ft.²

58
Q

7–37 ER access to cable pathways

3 examples of ER access to cable pathways =

A
  • 10th floor of a 20 floor
  • Center single floor
  • Center large campus
59
Q

7–43 determining size based on area served

Q/A
255 work area x .75 = 191.25
55 BAS devices x .25 = 13.75

=

A

191 ft.² + 14 ft.² = 205 ft.² ER size

60
Q

743 determining size based on area size

Work areas =

A

.75 ft.²

61
Q

7–43 determining size based on area served

BAS devices =

A

.25 ft.²

62
Q

7–43 determining size based on area served

200 work areas =

A

No less than 160 ft.²

63
Q

7–44 working clearances

Equipment cabinets =

A

10 ft.² x 10 ft.² for working clearance

64
Q

7–49 cable pathways entering ER

Circular sleeves =

A

Easier to fire stop

65
Q

7–49 cable pathway and ER

Four 100mm (4trade size) =

A

One spare sleeve

66
Q

7–49 cable pathway entering ER

TR =

A

(4) 4 in add spare per 40,000 ft.²

67
Q

7–49 cable pathways entering ER

ER =

A

(5) 4in

68
Q

7–49 cable pathway entering ER

EF =

A

(5) 4in & (3) 2in = total 8

69
Q

7–54 environment control requirements

Temperature =
Relative humidity =
Heat dissipation =

A
  • 77°F
  • 55%
  • 5000 British thermal (Btu)
70
Q

7–50 for the environment control requirements

HVAC sensors=

A

5ft AFF

71
Q

7-55 Floor requirement

Instead of carpet =

A

Tile or other smooth surface that does not produce dust or static

72
Q

7-11 environmental control

HVAC =

A

365 days per year

73
Q

Junction box =

A

60ft

OLD RCDD flashcards (30 decks)

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