CHAPTER 6 Flashcards
1
Q
CHROMATIC DISPERSION
A
A RESULT OF THE PHENOMENON THAT THE VELOCITY OF PROPOGATION IN A MEDIUM IS FREQUENCY DEPENDENT, WHICH CAUSES THE FREQUENCY COMPONENTS TO LOSE PHASE COHERENCE AS IT PROPOGATES (E.G, TRANSMITTED PULSE WILL SPREAD OUT AS IT PROPOGATES.
TDMM: PAGE G-36
2
Q
MODAL DISPERSION
A
A CHARACTERISTIC OF TRANSMISSION IN AN OPTICAL FIBER THAT RESULTS FROM DIFFERENT LENGTHS OF THE LIGHT PATHS TAKEN BY THE MANY MODES OF LIGHT AS THEY TRAVEL DOWN THE FIBER FROM SOURCE TO RECEIVER. ALSO CALLED MODAL DISTORTION.
TDMM; PAGE G-122
3
Q
OTDR
A
OPTICAL TIME DOMAIN REFLECTOMETER
AN INSTRUMENT THAT MEASURES TRANSMISSION CHARACTERISTICS OF THE OPTICAL FIBER BY MEASURING THE BACKSCATTER AND REFLECTION OF INJECTED LIGHT AS A FUNCTION OF TIME. USED TO MEASURE ATTENUATION OF OPTICAL FIBER, SPLICES, AND CONNECTORS AND LOCATE FAULTS.
TDMM: PAGE G-134
4
Q
WHAT IS THE DIFFERENCE BETWEEN AN EQUIPMENT CORD AND A PATCH CORD?
A
- EQUIPMENT CORDS ATTACH DIRECTLY TO ACTIVE EQUIPMENT
- PATCH CORDS ARE USED TO CROSS-CONNECT PASSIVE CABLING INFRASTRUCTURE
TDMM: PAGE 6-1
5
Q
NAME THE 2 GENERAL ENVIRONMENTAL STYLES OF BALANCED TWISTED-PAIR AND OPTICAL FIBER CABLING.
A
1, OUTSIDE PLANT
2. PREMISES
TDMM: PAGE 6-1
6
Q
WHICH IEC STANDARD SPECIFIES AN INTERNATIONAL CLASSIFICATION SYSTEM FOR THE SEALING EFFECTIVENESS OF ENCLOSURES FOR ELECTRICAL EQUIPMENT AGAINST THE INTRUSION INTO THE EQUIPMENT OF FOREIGN BODIES AND MOISTURE?
A
IEC 60529
TDMM: PAGE 6-2
7
Q
WHAT TERM DOES ISO/IEC USE TO DESCRIBE CHANNEL AND LINK PERFORMANCE?
A
CLASS
TDMM: PAGE 6-3, TABLE 6.1
8
Q
WHAT TERM DOES ISO/IEC USE TO DESCRIBE CABLE AND CONENCTING HARDWARE PERFORMANCE?
A
CATEGORY
TDMM: PAGE 6-3, TABLE 6.1
9
Q
WHAT TERM DOES TIA USE TO DESCRIBE PERFORMANCE LEVELS FOR CABLING AND CABLING COMPONENTS?
A
CATEGORY
TDMM: PAGE 6-3, TABLE 6.1
10
Q
WHAT IS THE MINIMUM ACCEPTABLE PERFORMANCE LEVEL FOR NETWORK CABLING?
A
CATEGORY 5e/CLASS D
TDMM: PAGE 6-3
11
Q
WHAT DOES BICSI RECOMMEND AS THE MINIMUM PERFORMANCE LEVEL FOR HORIZONTAL BALANCED TWISTED-PAIR CABLING?
A
CATEGORY 6A/CLASS E
TDMM: PAGE 6-3
12
Q
PER TIA STANDARDS, WHAT IS THE MAXIMUM FREQUENCY AT WHICH CATEGORY 3 CABLE CAN OPERATE?
A
16 MHz
TDMM: PAGE 6-4, TABLE 6.2
13
Q
PER TIA STANDARD, WHAT IS THE MAXIMUM FREQUENCY AT WHICH CATEGORY 5e CABLE CAN OPERATE?
A
100 MHz
TDMM: PAGE 6-4, TABLE 6.2
14
Q
PER TIA STANDARDS, WHAT IS THE MAXIMUM FREQUENCY AT WHICH CATEFORY 6 CABLE CAN OPERATE?
A
250 MHz
TDMM: PAGE 6-4, TABLE 6.2
15
Q
PER TIA STANDARDS, WHAT IS THE MAXIMUM FREQUENCY AT WHICH CATEGORY 6A CABLE CAN OPERATE?
A
500 MHz
TDMM: PAGE 6-4, TABLE 6.2
16
Q
PER ISO STANDARDS, WHAT IS THE MAXIMUM FREQUENCY AT WHICH CATEGORY 7/CLASS F CABLE CAN OPERATE?
A
600 MHz
TDMM: PAGE 6-4, TABLE 6.2
17
Q
PER ISO STANDARDS, WHAT IS THE MAXIMUM FREQUENCY AT WHICH CATEGORY 7A/CLASS F CABLE CAN OPERATE?
A
1000 MHz
TDMM: PAGE 6-4, TABLE 6.2
18
Q
PER ISO STANDARDS, WHAT IS THE MAXIMUM FREQUENCY AT WHICH CATEGORY 8.1/CLASS I CABLE CAN OPERATE?
A
2000 MHz
TDMM: PAGE 6-4, TABLE 6.2
19
Q
PER ISO STANDARDS, WHAT IS THE MAXIMUM FREQUENCY AT WHICH CATEGORY 8.2/ CLASS II CABLE CAN OPERATE?
A
2000 MHz
TDMM: PAGE 6-4, TABLE 6.2
20
Q
ISO/IEC USES AN X/Y DESIGNATION TO DESCRIBE BALANCED TWISTED-PAIR CABLES. WHAT DO THE LETTERS REPRESENT?
A
X= OVERALL SCREEN TYPE
Y=INDIVIDUAL SCREEN TYPE
TDMM: PAGE 6-4
21
Q
TRUE OR FALSE
THE ANSI/TIA STANDARDS PROVIDE CLEAR CABLE DESIGNATIONS.
A
FALSE. THE ANSI/TIA STANDARDS DO NOT PROVIDE CLEAR CABLE DESIGNATIONS.
TDMM: PAGE 6-4
22
Q
WHAT ARE THE 2 MOST FREQUENTLY USED ANSI/TIA CABLE DESIGNATION?
A
-UTP
-ScTP
TDMM: PAGE 6-4
23
Q
TRUE OR FALSE
CABLE DESIGN DESIGNATIONS CAN BE APPLIED TO CONNECTING HARDWARE IN THE SAME MANNER AS CABLE.
A
FALSE. DESIGNATIONS CANNOT BE APPLIED IN THE SAME MANNER TO CONENCTING HARDWARE BECAUSE OF THE SIGNIFICANT DESIGN DIFFRENCES.
TDMM: PAGE 6-4
24
Q
HOW SHOULD CONNECTING HARDWARE BE REFERENCED IN GENERAL?
A
AS UNSCREENED OR SCREENED. UTP, STP, OR FTP MAY BE APPROPRIATE AS WELL.
TDMM: PAGE 6-4
25
WHAT IS THE CHARACTERISTIC IMPEDANCE OF BALANCED TWISTED-PAIR CABLE?
100 OHMS (± 15 OHMS)
TDMM: PAGE 6-7
26
WHAT CONDUCTOR SIZES ARE USED FOR BALANCED TWISTED-PAIR CABLE?
22 TO 26 AWG
TDMM: PAGE 6-7
27
NAME 3 COMPONENTS FOUND IN ALL BALANCED TWISTED-PAIR CABLING.
1. SOLID OR STRANDED CONDUCTORS
2. THERMOPLASTIC INUSLATION
3. OUTER JACKET OR SHEATH
TDMM: PAGE 6-8
28
HOW IS EFFICIENT INSULATION DEFINED?
AS MATERIAL WHERE ANY LOSS OF THE TRANSMITTED SIGNAL BECAUSE OF LOSS ASSOCIATED WITH THE INSULATION IS MINIMAL
TDMM: PAGE 6-8
29
NAME 2 FACTORS THAT AFFECT THE MUTUAL CAPACITANCE OF BALANCED TWISTED-PAIR CABLE.
1. THE CONDUCTORS INSULATING MATERIAL
2. THE INSULATIONS THICKNESS
TDMM: PAGE 6-9
30
WHAT DOES PERMITTIVITY INDICATE?
INSULATIONS ABILITY TO TRANSMIT (OR PERMIT) AN ELECTRIC FIELD
TDMM: PAGE 6-9
31
NAME THE 4 PRIMARY PARAMETERS THAT CONTROL THE TRANSMISSION PERFORMANCE OF A CABLE.
1. RESISTANCE
2. CONDUCTANCE
3. INDUCTANCE
4. CAPACITANCE
TDMM: PAGE 6-10
32
NAME 6 SECONDARY PARAMETERS THAT AFFECTTHE TRANSMISSION PERFORMANCE OF A CABLE.
1. INSERTION LOSS
2. CROSSTALK LOSS
3. RETURN LOSS
4.PROPOGATION DELAY
5. PROPOGATION DELAY SKEW
6. NOMINAL VELOCITY PROPOGATION
TDMM: PAGE 6-10
33
NAME 4 MECHANICAL CHARACTERISTICS THAT MAY INFLUENCE TRANSMISSION PERFORMANCE.
1. TENSILE STRENGTH
2. TEMPERATURE RATING
3. FLAMMABILITY RATING
4. ENVIRONMENTAL IMPACT RESISTANCE
TDMM: PAGE 6-10
34
TRUE OR FALSE
SCREENED CABLES RADIATE LESS ELECTROMAGNETIC ENERGY THAN UNSCREENED CABLES.
TRUE. SCREENED CABLES RADIATE LESS ELECTROMAGNETIC ENERGY THAN UNSCREENED CABLES.
TDMM; PAGE 6-11
35
NAME 2 COMMON STYLES OF SCREENING IN BALANCED TWISTED-PAIR CABLES.
1. FOIL
2. BRAID
TDMM: PAGE 6-11
36
NAME 3 FUNCTIONS PERFORMED BY A CABLE SCREEN/SHIELD.
1. REDUCES THE LEVEL OF THE SIGNAL RADIATED FROM THE CABLE.
2. MINIMIZES THE EFFECT OF EXTERNAL EMI ON THE CABLE PAIRS.
3. PROVIDES PHYSICAL PROTECTION.
TDMM: PAGE 6-11
37
NAME 3 FACTORS THAT DETERMINE A SCREENS EFFECTIVENESS.
1. MATERIAL TYPE
2. THICKNESS
3. RELATIVE COVERAGE
TDMM: PAGE 6-11
38
WHAT TYPE OF ELECTROMAGNETIC FIELD IS TYPICALLY BLOCKED BY FOIL?
HIGHER FREQUENCY
(30MHz AND HIGHER)
TDMM: PAGE 6-11
39
WHAT TYPE OF ELECTROMAGNETIC FIELD IS EFFECTIVELY BLOCKED BY COPPER BRAID?
LOWER FREQUENCY
(BELOW 30 MHz)
40
WHAT TYPE OF ELECTROMAGNETIC FIELD IS EFFECTIVELY BLOCKED BY SOLID METAL TUBING BLOCKS?
ALMOST ANY ELECTROMAGNETIC FIELDS
TDMM: PAGE 6-11
41
WHAT IS THE PURPOSE OF A DRAIN WIRE?
TO DRAIN THE CURRENT INDUCED ON THE SCREEN
TDMM: PAGE 6-11
42
WHAT TYPE OF SCREEN PROVIDES THE HIGHEST LEVEL OF PROTECTION IN AN ENVIRONMENT WITH UNUSUALLY STRONG EFFECTS FROM RELATIVELY LOW-FREQUENCY EMI?
A COMBINATION OF BRAID AND FOIL SCREENS PROVIDES THE HIGHEST LEVEL OF PROTECTION.
TDMM: PAGE 6-12
43
WHAT IS THE ONLY TYPE OF SCREEN THAT IS EFFECTIVE AT VERY LOW FREQUENCIES (LESS THAN 1 kHz)
THICK-WALL METAL CONDUIT
TDMM: PAGE 6-12
44
WHAT TYPE OF SCREEN IS A BETTER CHOICE IN AN ENVIRONMENT WITH UNUSUALLY STRONG EFFECTS FROM RELATIVELY HIGH-FREQUENCY EMI?
FOIL SCREEN
TDMM: PAGE 6-12
45
TRUE OR FALSE
MULTIPAIR SCREENED CABLING IS RECOGNIZED FOR USE IN HORIZONTAL AND BACKBONE CABLING APPLICATIONS.
FALSE. MULTIPAIR SCREENED CABLING IS RECOGNIZED FOR USE IN BACKBONE CABLING APPLICATIONS ONLY.
TDMM: PAGE 6-12
46
WHY DO BALANCED TWISTED-PAIR PATCH CORDS TYPICALLY HAVE STRANDED CONDUCTORS?
FOR ADDED FLEXIBILITY
TDMM: PAGE 6-12
47
BALANCED TWISTED-PAIR PATCH CORDS THAT ARE STRANDED MAY EXHIBIT ___ PERCENT TO___ PERCENT MORE ATTENUATION THAN SOLID CONDUCTORS.
20, 50
TDMM: PAGE 6-12
48
WHAT TYPES OF CONNECTORS ARE TYPICALLY USED ON THE ENDS OF BALANCED TWISTED-PAIR PATCH CORDS?
8-POSITION, 8-CONTACT (8P8C)
TDMM: PAGE 6-12
49
WHAT TERM IS USED TO DESCRIBE CORDS THAT DIRECTLY ATTACH TO EQUIPMENT ON ONE OR BOTH ENDS?
EQUIPMENT CORD
TDMM: PAGE 6-13
50
WHAT TERM IS USED TO DESCRIBE CORDS THAT ATTACH ONE SET OF CONNECTING HARDWARE TO FORM A CROSS-CONNECTION?
PATCH CORD.
TDMM: PAGE 6-13
51
WHICH TYPE OF PATCH CORD, SOLID OR STRANDED CONDUCTOR, TYPICALLY FEATURES BETTER INSERTION LOSS CHARACTERISTICS?
SOLID
TDMM: PAGE 6-13
52
WHICH TYPE OF PATCH CORD, SOLID OR STRANDED CONDUCTOR, TYPICALLY FEATURES BETTER FLEX LIFE CHARACTERISTICS?
STRANDED
TDMM; PAGE 6-13
53
WHAT IS THE PRIMARY DIFFERENCE BETWEEN TWISTED-PAIR AND OPTICAL FIBER CABLES?
OPTICAL FIBER USES PULSES OF LIGHT TO TRANSMIT SIGNALS WHEREAS BALANCED TWISTED-PAIR USES AND ELECTRON FLOW.
TDMM: PAGE 6-14
54
NAME THE 2 CLASSIFICATIONS OF OPTICAL FIBER CABLE.
SINGLEMODE
MULTIMODE
TDMM: PAGE 6-14
55
WHAS IS THE CORE DIAMETER OF A SINGLE MODE FIBER?
8 TO 11 µm
TDMM: PAGE 6-14
56
WHAT IS THE APPROXIMATE CLADDING DIAMETER OF A SINGLEMODE FIBER?
125 µm
TDMM: PAGE 6-14
57
WHAT ARE THE COMMON CORE DIAMETERS FOR MULTIMODE FIBERS?
50 µm OR 62.5 µm
TDMM: PAGE 6-14
58
WHAT IS THE APPROXIMATE CLADDING DIAMETER OF MULTIMODE FIBER?
125 µm
TDMM: PAGE 6-14
59
WHAT 3 CLASSIFICATION TERMS ARE USED TO DESCRIBE AN OPTICAL FIBER CABLE?
1. INDOOR/OUTDOOR
2. INDOOR
3. OUTDOOR
TDMM: PAGE 6-16
60
WHAT IS THE RECOMMENDED USE FOR 62.6 µm CORE FIBER CABLE?
FOR EXTENSIONS TO EXISTING INSTALLATIONS ONLY.
TDMM: PAGE 6-16
61
WHAT COMMON WAVELENGTHS ARE SUPPORTED BY MULTIMODE OPTICAL FIBER CABLE?
850 nm VCSEL
1300 nm LED
TDMM: PAGE 6-16
62
WHAT IS THE MAXIMUM DISTANCE FOR RUNNING SINGLEMODE OPTICAL FIBER CABLE IN STRUCTURED CABLING SYSTEMS?
3000 m (9840')
TDMM: PAGE 6-17
63
WHAT TYPE OF LIGHT SOURCE IS TYPICALLY USED WITH SINGLEMODE OPTICAL FIBER CABLE?
A LASER LIGHT SOURCE
TDMM: PAGE 6-17
64
WHAT COMMON WAVELENGTH ARE SUPPORTED BY SINGLMODE OPTICAL FIBER CABLE?
1310 nm
1490 nm
1550 nm
1625 nm
TDMM: PAGE 6-16
65
NAME 3 CAUSES OF ATTENUATION IN OPTICAL FIBER CABLE.
1. GLASS MATERIAL, IMPURITIES, AND POINT DEFECTS
2. MACROBENDS AND MICROBENDS IN THE FIBER STRANDS
3. NUCLEAR RADIATION (POINT DEFFECTS) (ONLY IN RARE CASES)
TDMM: PAGE 6-17
66
OPTICAL FIBER ATTENUTAITON IS _______ PROPORTIONAL TO LENGTH
DIRECTLY
TDMM: PAGE 6-17
67
WHAT DOES THE MODAL BANDWIDTH OF MULTIMODE OPTICAL FIBER PROVIDE?
A MEASURE OF THE AMOUNT OF INFORMATION AN OPTICAL FIBER IS CAPABLE OF TRANSPORTING
TDMM: PAGE 6-18
68
HOW IS THE MODAL BANDWIDTH OF MULTIMODE OPTICAL FIBER DEFINED?
AS THE FREQUENCY AT WHICH THE LIGHT PULSE AMPLITUDE DROPS 3dB AT AN 1km (.625 mi) DISTANCE
TDMM: PAGE 6-18
69
HOW WILL INCREASING THE LENGTH AFFECT THE INFORMATION-CARRYING CAPACITY OF AN OPTICAL FIBER CABLE?
INCREASING THE CABLE LENGTH WILL LOWER THE INFORMATION-CARRYING CAPACITY OF THE OPTICAL FIBER.
TDMM: PAGE 6-18
70
NAME THE 2 COMPONENTS THAT ARE USED TO DETERMINE OVERALL BANDWIDTH.
1. MODAL DISPERSION
2. CHROMATIC DISPERSION
TDMM: PAGE 6-18
71
FROM A PRACTICAL POINT OF VIEW, HOW IS THE BANDWIDTH OF SINGLEMODE OPTICAL FIBER DESCRIBED?
AS UNLIMITED
TDMM: PAGE 6-18
72
WHERE IS LOOSE-TUBE OPTICAL FIBER CABLE PRIMARILY USED?
OUTDOORS
TDMM: PAGE 6-19
73
WHAT IS THE MOST COMMON DIAMETER FOR LOOSE-TUBE OPTICAL FIBER?
250 µm
TDMM: PAGE 6-19
74
WHAT ARE THE 2 MAIN FUNCTIONS OF A CABLE JACKET ON AN OPTICAL FIBER CABLE?
1. PHYSICAL PROTECTION FOR THE OPTICAL FIBERS
2. ENVIRONMENTAL PROTECTION FOR THE OPTICAL FIBERS.
TDMM; PAGE 6-19
75
NAME 3 ADVANTAGES OF LOOSE-TUBE OPTICAL FIBER CABLE COMPARED TO TIGHT-BUFFERED CABLES WITH THE SAME NUMBER OF STRANDS.
1. A GREATER TENSILE STRENGTH AND MORE ROBUST OUTER JACKET
2. A GREATER RESISTANCE TO LOW-TEMPERATURE EFFECTS ON ATTENUTAION
3. A CABLE JACKET THAT EXPANDS AND CONTRACTS WITH CHANGES IN TEMPERATURE WITHOUT AFFECTING THE OPTICAL FIBER.
TDMM: PAGE 6-19
76
WHERE IS TIGHT-BUFFERED OPTICAL FIBER CABLE PRIMARILY USED?
INSIDE BUILDINGS
TDMM: PAGE 6-21
77
WHAT IS THE MOST COMMON DIAMETER FOR TIGHT-BUFFERED OPTICAL FIBER CABLES?
900 µm
TDMM: PAGE 6-21
78
HOW DOES TIGHT-BUFFERED CABLES PROTECT THE OPTICAL FIBER?
BY SUPPORTING EACH STRAND OF GLASS WITH A BUFFER COATING EXTRUDED OVER THE BASE OPTICAL FIBER's 250 µm ACRYLATE COATING.
TDMM: PAGE 6-21
79
NAME 3 PREDOMINATE TYPES OF COAXIAL CABLE.
SERIES 6
SERIES 11
RG 59
TDMM: PAGE 6-24
80
WHAT IS THE CHARACTERISTIC IMPEDANCE OF SERIES-6 COAXIAL CABLE?
75 OHMS
TDMM: PAGE 6-24
81
TRUE OR FALSE
THE METALLIC COVERING ON A COAXIAL CONDUCTOR ACTS AS A SCREEN.
FALSE. THE METALLIC COVERING IS NOT A SCREEN-IT IS A CONDUTCTOR IN THE CIRCUIT.
TDMM: PAGE 6-24
82
WHAT TYPE OF CONDUCTOR DOES A SERIES-6 COAXIAL CABLE HAVE?
SOLID-CENTER CONDUCTOR
TDMM: PAGE 6-24
83
WHAT TYPES OF CONNECTORS ARE USED WITH SERIES-6 COAXIAL CABLE>
F-STYLE
BNC CONNECTOR
TDMM: PAGE 6-24
84
WHAT TYPE OF COAXIAL CABLE IS USED IN VIDEO BACKBONE APPLICATIONS?
SERIES-11U
TDMM: PAGE 6-25
85
WHY IS SERIES-11U COAXIAL CABLE THE PREFFERED CHOICE FOR LONGER RUNS?
IT HAS LOWER SIGNAL ATTENUATION THAN SERIES-6.
TDMM: PAGE 6-25
86
WHAT IS THE CHARACTERISTIC IMPEDANCE OF SERIES 11-U COAXIAL CABLE?
75 OHMS
TDMM; PAGE 6-25
87
WHAT TYPE OF CONDUCTOR DOES A SERIES-11U COAXIAL CABLE HAVE?
18 AWG STRANDED CENTER CONDUCTOR
TDMM: PAGE 6-25
88
WHAT TYPES OF CONNECTORS ARE USED WITH SERIES-11U COAXIAL CABLE?
F-STYLE CONNECTORS
N-STYLE CONNECTORS
TDMM: PAGE 6-25
89
THE LONGER THE CABLE LENGTH, THE_____ THE ATTENUATION
GREATER
TDMM; PAGE 6-25
90
HOW DOES THE OUTSIDE DIAMETER OF A COAXIAL CABLE AFFECT ATTENUATION?
FOR A GIVEN DIELECTRIC, THE LARGER THE CABLE's OUTSIDE DIAMETER, THE LOWER THE ATTENUATION
TDMM: PAGE 6-25
91
WHAT FACTOR DETERMINES HOW OFTEN SIGNAL NEEDS TO BE AMPLIFIED IN THE NETWORK?
ATTENUATION
TDMM; PAGE 6-25
92
TRUE OR FALSE
A COAXIAL CABLE MAY BE SELECTED BY SIMPLY IDENTIFYING THE PHYSICAL SIZE.
FALSE. A COAXIAL CABLE CANNOT BE SELECTED BY SIMPLY IDENTIFYING THE PHYSICAL SIZE; A FULL UNDERSTANDING OF THE APPLICATION IS NECESSARY.
TDMM: PAGE 6-26
93
WHAT DESIGNATION IS CURRENTLY USED FOR COAXIAL CABLES USED IN BROADBAND APPLICATIONS?
SERIES-X
TDMM: PAGE 6-26
94
NAME 6 FACTORS THE ICT DESIGNER SHOULD CONSIDER WHEN DESIGNING A BROADBAND DISTRIBUTION SYSTEM.
1. AMPLIFIER LINK BUDGETS
2. AMPLIFIER CASCADE LIMITATIONS
3. ENVIRONMENTAL CONDITIONS
4. DROP LENGTH
5. MINIMUM LEVELS OF THE SIGNAL TO THE HOUSE
6. PRICE
TDMM; PAGE 6-26
95
WHAT TERM IS APPLIED TO DEFINE THE AREAS THROUGHOUT THE BUILDING, COMPARTMENT, OR CHAMBER TO WHICH ONE OR MORE AIR DUCTS ARE CONNECTED, FORMING PART OF THE AIR DISTRIBUTION SYSTEM?
PLENUM
TDMM: PAGE 6-27
96
WHY ARE PLENUM AREAS THE MOST DANGEROUS IN TERMS OF FIRE SAFETY?
BECASUE THEY FACILITATE THE FAST DISTRIBUTION OF THE FLAME AND COMBUTION PRODUCTS (SMOKE AND GASES) THROUGHT THE BUILDING.
TDMM: PAGE 6-27
97
WHAT TERM REFERS TO ANY VERTICAL SERVICE DUCTS (SHAFTS AND CHAMBERS) AND THE INTERFLOOR PASSAGES OF THE BUILDING SUBJECT TO CABLE INSTALLATION?
RISER
TDMM: PAGE 6-27
98
WHAT LOCATIONS ARE LISTED AS SUITABLE FOR CMP CABLES?
DUCTS, PLENUMS, AND OTHER SPACES USED FOR ENVIRONMENTAL AIR.
TDMM: PAGE 6-28
99
WHY ARE CMR CABLES REQUIRED TO HAVE FIRE-RESISTANT QUALITIES?
TO PREVENT CARRYING OF FIRE FROM FLOOR TO FLOOR.
TDMM: PAGE 6-28
100
WHAT LOCATIONS ARE LISTED AS SUITABLE FOR CMX CABLES?
DWELLINGS AND RACEWAYS
TDMM: PAGE 6-28
101
TRUE OR FALSE
TYPE CMUC UNDERCARPET COMMUNICATIONS WIRES AND CABLES SHALL BE LISTED AS RESISTANT TO FLAME SPREAD.
TRUE. TYPE CMUC UNDERCARPET COMMUNICATIONS WIRES AND CABLES SHALL BE LISTED AS BEING RESISTANT TO FLAME SPREAD.
TDMM: PAGE 6-28
102
WHAT TYPES OF CABLES HAVE AN -LP DESIGNATION?
CABLES THAT ARE SUITABLE FOR USE IN HIGH DENSITY POE APPLICATIONS.
TDMM: PAGE 6-28
103
WHAT LOCATIONS ARE LISTED AS SUITABLE FOR ONFP AND OFCP CABLES?
DUCTS, PLENUMS, AND OTHER SPACE USED FOR ENVIRONMENTAL AIR.
TDMM: PAGE 6-29
104
WHY ARE OFNR AND OFCR CABLES REQUIRED TO HAVE FIRE RESISTANT CHARACTERISTICS?
TO PREVENT FIRE FROM SPREADING FLOOR TO FLOOR
TDMM: PAGE 6-29
105
ARE OFNG AND OFCG GENERAL-PURPOSE FIBERS REQUIRED TO BE RESISTANT TO THE SPREAD OF FIRES?
YES, OFNG AND OFCG GENERAL-PURPOSE FIBERS SHALL BE LISTED AS BEING RESISTANT TO THE SPREAD OF FIRES.
TDMM: PAGE 6-29
106
NAME THE 2 FIRE SAFETY SPECIFICATIONS THAT ARE USED IN EUROPE.
IEC 60332-1
IEC 60332-3-24
TDMM: PAGE 6-31
107
WHAT TERM DESCRIBES GAS-TIGHT PHYSICAL CONTACT BETWEEN TWO CONDUCTORS?
INSULATION DISPLACEMENT CONTACT (IDC)
TDMM: PAGE 6-33
108
WHAT TYPE OF SPECIAL TOOL IS TYPICALLY REQUIRED TO CREATE AN IDC CONNECTION?
PUNCH-DOWN TOOL
TDMM: PAGE 6-33
109
HOW IS GAS-TIGHT CONTACT ESTABLISHED IN AN IDC CONNECTION?
BY A COLD WELD AND ELIMINATION OF THE AIR GAP BETWEEN THE CONDUCTOR AND THE IDC
TDMM: PAGE 6-33
110
NAME THE 4 BASIC STYLES OF IDC CONNECTORS
1. 110-STYLE
2. 66-STYLE
3. BIX-STYLE
4. LSA-STYLE
TDMM: PAGE 6-33
111
NAME 4 REASONS THE 110-STYLE IS THE MOST POPULAR IDC CONNECTOR.
1. COMPACT DESIGN
2. RELIABILITY
3. HIGH TRANSMISSION PERFORMANCE CAPABILITIES
4. RELATIVELY INEXPENSIVE TO MANUFACTURE
TDMM: PAGE 6-33
112
HOW MANY TERMINATION CYCLES CAN A 110-STYLE IDC CONNECTOR COMPLETE BEFORE ITS RELIABILITY DEGRADES?
AT LEAST 200
TDMM: PAGE 6-33
113
WHAT IS THE DISADVANTAGE OF THE 110-STYLE IDC CONNECTOR?
IT DOES NOT EXIST IN SCREENED VERSIONS AS A STAND-ALONE CONNECTOR.
TDMM: PAGE 6-35
114
WHY HAS THE 66-BLOCK, ONE OF THE OLDEST INDUSTRY CONNECTORS, REMAINED AN ALTERNATIVE FOR TELECOMMUNICATIONS APPLICATIONS?
BECAUSE OF ITS HIGH-DENSITY TERMINATION DESIGN AND SIMPLE AND INEXPENSIVE MANUFACTURING.
TDMM: PAGE 6-36
115
TRUE OR FALSE
IT IS POSSIBLE TO TERMINATE MORE THAN ONE CONDUCTOR IN THE SAME 66-CONTACT.
TRUE, IT IS POSSIBLE TO TERMINATE MORE THAN ONE CONDUCTOR IN THE SAME 66 CONTACT, BUT SUCH PRACTICE IS NOT RECOMMENDED.
TDMM: PAGE 6-36
116
NAME 4 DISADVANTAGES OF A 66-SYLE IDC CONNECTOR.
1. DOES NOT EXIST IN SCREENED VERSIONS AS A STAND-ALONE CONNECTOR.
2. COVERS A COMPARITVELY NARROW RANGE OF TRANSMISSION PERFORMANCE CATEGORIES.
3. CAN EXIST ONLY ON THE FORM OF A 66-STYLE CONNECTING BLOCK
4. HAS A LIMITED NUMBER OF APPLICATIONS.
TDMM: PAGE 6-39
117
NAME 4 APPLICAITONS SUPPORTED BY THE 66-STYLE CONNECTOR.
1. DEMARCATION POINT CONNECTING HARDWARE.
2. PLATFORM FOR CIRCUIT PROTECTION
3. COMPACT CROSS-CONNECTIONS AND INTERCONNECTIONS IN VOICE DATA APPLICATIONS.
4. METAL CONDUCTING SPLICING
TDMM: PAGE 6-39
118
HOW MANY TERMINATION CYCLES CAN A BIX-STYLE IDC CONNECTOR COMPLETE BEFORE RELIABILITY DEGRADES?
AT LEAST 200
TDMM: PAGE 6-39
119
NAME 3 DISADVANTAGES OF THE BIX-STYLE CONNECTOR.
1. IT IS NOT WIDELY USED BY THE INDUSTRY.
2. THE CONDUCTOR TERMINATION IS PERFORMED WITH A SPECIAL TOOL.
3. IT IS NONEXISTENT IN SCREENED VERSIONS AS A STAND-ALONE CONNECTOR.
TDMM: PAGE 6-41
120
NAME 3 REASONS THE LSA-STYLE CONNECTOR IS A POPULAR CHOICE FOR VOICE AND DATA NETWORKS/
1. UNIQUE QUALITY
2. TRANSMISSION PERFORMANCE CAPABILITIES
3. ULTIMATE TERMINATION DENSITY
TDMM: PAGE 6-41
121
NAME 3 DISADVANTAGES OF AN LSA-STYLE CONNECTOR.
1. COMPARATIVELY COMPLEX AND EXPENSIVE DESIGN
2. CONDUCTOR TERMINATION IS PERFORMED WITH A SPECIAL TOOL, WHICH IS NOT ALWAYS AVAILABLE
3. NOT WIDELY USED BY THE DATA INDUSTRY
TDMM: PAGE 6-43
122
NAME THE 2 PARTS OF A MODULAR CONNECTOR.
1. PLUG
2. JACK
TDMM: PAGE 6-44
123
WHERE ARE 4P4C MODULAR CONNECTORS PRIMARILY USED?
TELEPHONE HANDSET CORDS.
TDMM: PAGE 6-44
124
WHERE ARE 6P4C AND 6P6C MODULAR CONNECTORS USED?
TELEPHONE AND MODEM CORDS
TDMM: PAGE 6-44
125
WHERE ARE 8P8C MODULAR CONNECORS USED?
DATA COMMUNICATION LINES AND PATCH CORDS.
TDMM: PAGE 6-44
126
HOW MANY MATING CYLES IS A PL 1 MODULAR CONNECTOR RATED TO WITHSTAND WITHOUT FAILING?
750 MATING CYLES
TDMM: PAGE 6-44
127
HOW MANY MATING CYCLES IS A PL 2 MODULAR CONNECTOR RATED TO WITHSTAND WITHOUT FAILING?
2500 MATING CYLES
TDMM: PAGE 6-44
128
WHAT IS A MODULAR PLUG?
A MALE TELECOMMUNICATIONS CONNECTOR FOR CABLES OR CORDS
TDMM: PAGE 6-45
129
WHAT DOES THE NUMBER OF POSITIONS INDICATE ABOUT A MODULAR PLUG?
THE CONNECTORS WIDTH
TDMM: PAGE 6-4
130
WHAT DOES THE NUMBER OF CONTACTS INSTALLED INTO THE AVAILABLE POSITIONS INDICATE ABOUT A MODULAR PLUG?
THE MAXIMUM NUMBER OF CONDUCTORS THE CONNECTOR CAN TERMINATE.
TDMM: PAGE 6-46
131
NAME 2 DISADVANTAGES OF A MODULAR PLUG.
1. IT HAS DESIGN-LIMITED TRANSMISSION PERFORMANCE.
2. MECHANICAL CONTACT RESULTS IN A LIMITED LIFECYCLE.
TDMM: PAGE 6-47
132
WHAT IS MODULAR PLUGS TYPICAL APPLICATION?
EQUIPMENT CORDS AND PATCH CORDS.
TDMM: PAGE 4-47
133
WHAT IS A MODULAR JACK?
A FEMALE TELECOMMUNICATIONS OUTLET/CONNECTOR THAT MAY BE KEYED OR UNKEYED AND MAY HAVE 4, 6, OR 8 CONTACT POSITIONS.
TDMM: PAGE 6-48
134
NAME THE 3 TYPES OF EIGHT-POSITION PIN/PAIR ASSIGNMENTS USED WITH MODULAR JACKS.
1. T568A
2. T568B
3. USOC-8
135
NAME 5 ADVANTAGES OF MODULAR JACKS.
1. MOST WIDELY USED JACK DESIGN IN DATA COMMUNICATIONS
2. HIGHEST-DENSITY JACK DESIGN.
3. INEXPENSIVE AND EASY TO MANUFACTURE.
4. WIDE VARIETY OF CONFIGURATIONS.
5. COMPARITIVELY HIGH TRANSMISSION PERFORMANCE CHARACTERISTICS.
TDMM: PAGE 6-50
136
NAME 2 DISADVANTAGES OF MODULAR JACKS.
1. IT HAS DESIGN-LIMITED TRANSMISSION PERFORMANCE
2. MECHANICAL CONTACT RESULTS IN A LIMITED LIFECYCLE
TDMM: PAGE 6-50
137
NAME 4 TYPICAL APPLICATIONS FOR MODULAR JACKS.
1. WORK AREA TELECOMMUNICATIONS OUTLET/CONNECTORS.
2. PATCH PANEL CONNECTORS
3. PREWIRED CONNECTING BLOCKS AND PANELS
4. ACTIVE EQUIPMENT INPUT AND OUTPUT CONNECTORS.
TDMM: PAGE 6-51
138
WHAT TYPE OF CONNECTOR IS THE KEY SYSTEM TELEPHONE SYSTEM CONNECTOR?
50-POSITION MINIATURE RIBBON CONNECTORS.
TDMM: PAGE 6-51
139
WHAT TYPE OF SPECIAL TOOL IS NEEDED TO TERMINATE 50-POSITION MINIATURE RIBBON CONNECTORS?
BUTTERFLY TOOL
TDMM: PAGE 6-51
140
TRUE OR FALSE
THE 50-POSITION MINIATURE RIBBON CONNECTORS ARE STANDARDIZED BY STRUCTURED CABLING STANDARDS.
FALSE, THE 50-POSITION MINIATURE RIBBON CONNECTORS ARE NOT STANDARDIZED BY STRUCTURED CABLING STANDARDS, BUT THEY ARE STILL WIDELY USED AS ADAPTERS FOR CONNECTION OF CERTAIN STYLES OF ACTIVE EQUIPMENT TO TELECOMMUNICATIONS CABLING.
TDMM: PAGE 6-53
141
WHAT TRANSMISSION PERFORMANCE CATEGORIES ARE AVAILABLBE FOR 50-POSITION MINIATURE RIBBON CONNECTORS?
CATEGORY 3, 5 AND 5e
TDMM: PAGE 6-53
142
NAME 3 ADVANTAGES OF 50-POSITION MINIATURE RIBBON CONNECTORS.
1. WIDELY USED IN TELECOMMUNICATIONS AND DATA COMMUNICATIONS INDUSTRIES
2. HIGH DENSITY OF CONNECTIONS
3. WIDE RANGE OF DESIGNS AND CONFIGURATIONS COVERING MANY APPLICAITONS
TDMM: PAGE 6-54
143
NAME 2 TYPICAL APPLICATIONS OF 50-POSITION MINIATURE RIBBON CONNECTORS.
1. TELECOMMUNICATIONS EQUIPMENT INTERFACES AND CORDS
2. DATA COMMUNICATIONS EQUIPMENT INTERFACES AND CORDS.
TDMM: PAGE 6-54
144
NAME THE 5 BASIC TYPES OF CONNECTING HARDWARE USED WITH BALANCED TWISTED-PAIR CABLING SYSTEMS.
1. TELECOMMUNICATIONS OUTLETS/CONNECTORS, INCLUDING MULTIUSER OUTLETS.
2. PATCH PANELS.
3. CONNECTING BLOCKS.
4. CABLE ASSEMBLIES.
5. SPLICES
TDMM: PAGE 6-55
145
WHAT TYPE OF HARDWARE SERVES AS THE END POINT OF THE HORIZONTAL CABLING?
BALANCED TWISTED-PAIR OUTLETS/CONNECTORS
TDMM: PAGE 6-55
146
NAME THE 3 MAIN ELEMENTS OF A TELECOMMUNICATIONS OUTLET/CONNECTOR ASSEMBLY.
1. MOUNTING BOX
2. MOUNTING PLATE FOR FACEPLATE
3. CONNECTOR
TDMM: PAGE 6-56
147
WHAT IS AN OUTLET MODULE?
A TELECOMMUNICATIONS JACK INSTALLED INTO THE CONNECTING HARDWARE HOUSING OR ON ITS PRINTED CIRCUIT BOARD
TDMM: PAGE 6-56
148
WHAT IS THE PURPOSE OF BALANCED TWISTED-PAIR OUTLETS/CONNECTORS?
TO CONNECAT ACTIVE TELECOMMUNICATIONS EQUIPMENT TO THE CABLING AT WORK AREAS.
TDMM: PAGE 6-57
149
WHAT IS A PATH PANEL?
AN ADMINISTRATION POINT IN THE CABLING WHERE THE CABLE IS TERMINATED TO CONNECTING HARDWARE MOUNTED IN A PANEL ASSEMBLY THAT ACCEPTS PATCH CORDS
TDMM: PAGE 6-57
150
WHAT IS THE MAIN PURPOSE OF A PATCH PANEL AS CONNECTING HARDWARE?
TO PROVIDE HIGH-DENISITY, READILY AVAILABLE, RELIABLE, AND DURABLE CONNECTION FILEDS IN TERMINATION SPACES AND THEIR COUNTERPARTS IN SPECIALIZED TELECOMMUNICATIONS SYSTEMS
TDMM: PAGE 6-57
151
NAME 3 FACTORS THAT DETERMINE A PATCH PANEL'S DESIGN.
1. MOUNTING METHOD
2. STYLE OF CONNECTOR MODULE
3. TRANSMISSION MEDIUM STYLE
TDMM: PAGE 6-58
152
WHAT DESIGN DETAIL IS COMMON TO ALL STYLES OF PATCH PANELS?
A STEEL FRONT PANEL THAT SERVES AS A SUPPORT FOR THE INTERNAL CIRCUITRY AND A MOUNTING BASE FOR THE CONNECTORS.
TDMM: PAGE 6-58
153
HOW MAY CONNECTIONS ARE AVAILABLE IN A HIGH-DENSITY PATCH PANEL?
48 PER 1 RMU
TDMM: PAGE 6-58
154
HOW IS CABLE STRAIN RELIEF ACCOMPLISHED IN A PATCH PANEL?
BY USING TIE WRAPS OR HOOK-AND-LOOP STRAPS ON A CABLE MANAGEMENT BAR THAT IS INSTALLED AT THE REAR OF THE PATCH PANEL.
TDMM: PAGE 6-59
155
NAME 4 TYPICAL APPLICATIONS OF PATCH PANELS.
1. INTERCONNECTION CONNECTING HARDWARE IN TELECOMMUNICATIONS SPACES
2. CROSS-CONNECTION CONNECTING HARDWARE IN TELECOMMUNICATIONS SPACES.
3. MULTIUSER TELECOMMUNICATIONS OUTLET ASSEMBLIES
4. CP AND HCP CONNECTING HARDWARE
TDMM: PAGE 6-60
156
WHAT IS THE MAXIMUM CATEGORY OF TRANSMISSION PERFORMANCE THAT CAN BE SUPPORTED BY A 66-STYLE BLOCK?
CATEGORY 5e
TDMM: PAGE 6-61
157
HOW ARE CROSS-CONNECTS CREATED ON 66-STYLE BLOCKS?
WITH BRIDGING CLIPS OR CROSS-CONNECT JUMPERS
TDMM: PAGE 6-62
158
NAME THE 3 PARTS OF A 66-STYLE CONNECTING BLOCK.
1. BASE EQUIPPED WITH TWO MOUNTING TABS
2. CONTACT-HOLDING BODY FRAME WITH TWO FANNING STRIPS
3. 66-STYLE CONTACTS
TDMM: PAGE 6-62
159
WHAT IS AN OPTIONAL COMPONENT OF A 110-STYLE BLOCK?
1. STANDOFF LEGS
TDMM: PAGE 6-64
160
DOES THE 110-STYLE WIRNG BLOCK CONTAIN AN IDC?
NO, THE IDC FOR THIS STYLE OF TERMINATION APPLICAITON IS IN THE 2-PAIR (C-2), 3-PAIR (C-3), 4-PAIR (C-4), AND 5-PAIR (C-5) CONNECTING BLOCK, WHICH IS PUNCHED DOWN ON TOP OF THE 110-STYLE WIRING BLOCK.
TDMM: PAGE 6-64
161
WHAT SPECIAL TOOL IS NEEDED TO TERMINATE ON A 110 BLOCK?
A SINGLE--POSITION OR MULTIPAIR PUNCH-DOWN TOOL
TDMM: PAGE 6-64
162
WHAT PAIR INCREMENTS ARE AVAILABLE FOR BIX-STYLE CONNECTING BLOCKS?
-50
-250
-300
-900
TDMM: PAGE 6-66
163
NAME THE 4 BASIC LSA-STYLE BLOCK CONFIGUATIONS.
1. DISCONNECT MODULES
2. CONNECT MODULES
3. SWITCHING MODULES
4. FEED-THROUGH MODULES
TDMM: PAGE 6-68
164
WHAT PAIR INCREMENTS ARE AVAILABLE FOR LSA-STYLE CONNECTING BLOCKS?
-8
-10
-20
165
WHAT IS THE PURPOSE OF AN LSA-STYLE CONNECT MODULE?
TO PROVIDE A CONTINOUS LINK BETWEEN THE CABLE AND THE CROSS-CONNECT WIRING
TDMM: PAGE 6-69
166
WHAT IS THE PURPOSE OF AN LSA-STYLE DISCONECT MODULE?
TO ALLOW TEMPORARY OR PERMANENT DISCONNECT OF THE CIRCUIT
TDMM: PAGE 6-69
167
WHAT IS THE PURPOSE OF AN LSA-STYLE SWITCHING MODULE?
TO ALLOW FOR HIGH-DENSITY TERMINATION AND PATCH CABLES
TDMM: PAGE 6-69
168
WHAT IS THE PURPOSE OF AN LSA-STYLE FEED-THROUGH MODULE?
TO PROVIDE A CONTINOUS LINK BETWEEN THE FEEDER AND THE JUMPER FOR HIGH-DENSITY TERMINATIONS IN SMALL AREAS
TDMM: PAGE 6-69
169
WHAT DOES HYBRID MEAN WHEN APPLIED TO EQUIPMENT CORDS AND PATCH CORDS?
THAT THE CORDS HAVE DISIMILAR CONNECTORS ON EACH END OF THE ASSEMBLY
TDMM: PAGE 6-71
170
WHAT CORRECTION FACTOR IS USED TO DETERMINE THE INSERTION LOSS PARAMETERS FOR CABLE ASSEMBLIES WITH 24 AWG CONDUCTORS?
1.2 (20%) TO 1.5 (50%)
TDMM: PAGE 6-72
171
WHAT CORRECTION FACTOR IS USED TO DETERMINE INSERTION LOSS PARAMETERS FOR CABLE ASSEMBLIES WITH 26 AWG CONDUCTORS?
1.5 (50%)
TDMM: PAGE 6-72
172
NAME 2 ADVANTAGES OF A CABLE ASSEMBLY/
1. COMPACT AND INEXPENSIVE DEVICE FOR INTERCONNECTIONS AND CROSS-CONNECTIONS
2. AVAILABLE IN MULTIPLE CONFIGURATIONS AND TRANSMISSION PERFORMANCE LEVEL CATAGORIES
TDMM: PAGE 6-72
173
NAME 3 TYPICAL APPLICATIONS OF A CABLE ASSEMBLY.
1. CROSS-CONNECTIONS IN DATA ANALOG TRANSMISSION SYSTEMS
2. INTERCONNECTIONS IN DATA ANALOG TRANSMISSION SYSTEMS
3. CONNECTIONS TO TEST INSTRUMENTS
TDMM; PAGE 6-72
174
WHAT IS A BALANCED TWISTED-PAIR SPLICE?
A DEVICE THAT PERMANENTLY JOINS CONDUCTORS
TDMM: PAGE 6-73
175
HOW MANY CONDUCTORS CAN BE TERMINATED BY A SINGLE-PAIR SPLICE
2 TO 3
TDMM: PAGE 6-74
176
HOW MANY CABLE PAIRS CAN BE SPLICED WITH A MULTIPAIR SPLICING MODULE?
UP TO 25
TDMM: PAGE 6-74
177
NAME 3 ADVANTAGES OF A BALANCED TWISTED-PAIR SPLICE.
1. IS WIDELY USED IN OSP AND PREMISED CABLING FOR CONNECTION, SPLITTING AND RE-ROUTING OF CABLING SEGMENTS
2. PROVIDES A COST-EFFECTIVE METHOD OF CONNECTION
3. CAN BE USED IN A WIDE RANGE OF APPLICAITONS
TDMM: PAGE 6-75
178
NAME THE 2 TYPICAL APPLICATIONS FOR A BALANCED TWISTED-PAIR SPLICE/
1. CONNECTORIZATION APPLICAITONS
2. CABLING PLANT APPLICATIONS
TDMM: PAGE 6-76
179
TRUE OR FALSE
OPTICAL FIBER CONNECTORS AND ADAPTERS ARE GENERALLY NOT SPECIFIED BY CABLING INDUSTRY STANDARDS.
TRUE, OPTICAL FIBER CONNECTORS AND ADAPTERS ARE GENERALLY NOT SPECIFIED BY CABLING INDUSTRY STANDARDS
TDMM: PAGE 6-77
180
NAME THE 3 COMMON TYPES OF OPTICAL FIBER INTERFACES.
1. LC
2. SC
3. ST
TDMM: PAGE 6-77
181
WHAT CAN BE USED TO CONVERT A SIMPLEX LC CONNECTOR TO DUPLEX?
A CLIP
TDMM; PAGE 6-77
182
WHO ESTABLISHES THE BANDWIDTH AND RETURN LOSS OF AN OPTICAL FIBER CABLE?
MANUFACTURER
TDMM: PAGE 6-77
183
WHAT IS THE ONLY TRANSMISSION CHARACTERISTIC THAT CAN EASILY, RELIABLY, AND REPEATEDLY BE MEASURED IN THE FIELD WITH HANDHELD DEVICES?
ATTENUATION
TDMM: PAGE 6-77
184
WHAT TYPE OF DEVICE IS RECOMMENDED FOR PASS/FAIL DETERMINATION OF OPTICAL LOSS BUDGETS?
POWER METER AND LIGHT SOURCE
TDMM: PAGE 6-77
185
HOW DOES THE SIZE OF AN LC-STYLE CONNECTOR COMPARE TO THE SIZE OF AN SC-STYLE CONNECTOR?
AN LC-CONNECTOR IS ABOUT HALF THE SIZE OF AN SC-STYLE CONNECTOR.
TDMM: PAGE 6-80
186
WHAT IS THE DISADVANTAGE OF THE SC-STYLE OPTICAL FIBER CONNECTOR?
IT DOES NOT FEATURE AN SFF DESIGN.
TDMM: PAGE 6-82
187
WHAT PREVENTS AN ST-STYLE CONNECTOR FROM ROTATING?
A KEY
TDMM: PAGE 6-83
188
NAME THE 2 PRIMARY SPLICING METHODS FOR OPTICAL FIBER.
1. MECHANICAL
2. FUSION
TDMM: PAGE 6-85
189
NAME 2 BENEFITS OF FUSION SPLICING COMPARED WITH MECHANICAL SPLICING.
1. REDUCED LOSS (ATTENUATION)
2. REDUCED REFLECTANCE
TDMM: PAGE 6-85
190
WHAT IS THE MINIMUM RETURN LOSS FOR SPLICED MULTIMODE FIBER?
20dB
TDMM: PAGE 6-87
191
WHAT IS THE MINIMUM RETURN LOSS FOR SPLICED SINGLEMODE FIBER?
35dB
TDMM: PAGE 6-87
192
WHERE IS OPTICAL FIBER PIGTAIL SPLICING COMMONLY USED?
IN PREMISES CBALING ENVIRONMENTS
TDMM: PAGE 6-87
193
NAME THE 2 APPLICATIONS AREAS FOR OPTICAL FIBER PATCH PANELS.
1. RACK MOUNTED
2. WALL MOUNTED
TDMM: PAGE 6-89
194
NAME 3 FACTORS THAT ARE USED TO DETERMINE THE STYLE OF OPTICAL FIBER SPLICING HARDWARE.
1. MOUNTING REQUIREMENTS
2. OPTICAL FIBER STRAND COUNT
3. SPLICING METHOD
TDMM: PAGE 6-93
195
WHAT IS THE SPLICE INSERTION LOSS ALLOWANCE FOR NETWORK CABLING STANDARDS?
.3 dB PER SPLICE
TDMM: PAGE 6-94
196
NAME THE 2 REASONS THAT OPTICAL FIBER SPLICING HARDWARE IS TYPICALLY USED.
1. TO JOIN TWO DISCRETE OPTICAL FIBERS AS PART OF A SYSTEM DESIGN AND INSTALLATION
2. TO REPAIR A BREAK IN ONE OR MORE DAMAGED OPTICAL FIBER STANDS
TDMM: PAGE 6-94
197
NAME 3 POPULAR STYLES OF COAXIAL CONNECTORS.
1. F-TYPE
2. BNC
3. N-STYLE
TDMM: PAGE 6-95
198
WHY SHOULD SCREW-ON AND HEX CONNECTORS BE AVOIDED IN COMMERCIAL INSTALLATIONS>?
THEY SHOULD BE AVOIDED BECASUE THEIR PERFORMANCE CHARACTERISTICS. THET CREATE INTERMITTENT PROBLEMD THAT CAN BE DIFFICULT TO TROUBLESHOOT
TDMM: PAGE 6-95
199
WHAT TYPE OF CONNECTOR IS RECOMMENDED TO ENSURE DATA TRANSFER?
CAPTIVE-PIN CONNECTOR
TDMM: PAGE 6-95
200
WHAT IS THE STANDARD CONNECTOR FOR USE ON RG59, SERIES-6, AND SERIES-11 CABLE?
F-STYLE
TDMM: PAGE 6-95
201
WHY ARE BNC CONNECTORS THE MOST COMMON COAXIAL CABLE CONNECTOR?
BECAUSE OF THEIR RELIABILITY AND RUGGEDNESS
TDMM: PAGE 6-96
202
NAME THE 3 ELEMENTS OF A TYPICAL BNC CONNECTOR.
1. FERRULE
2. CONNECTOR BODY
3. SILVER OR GOLD-PLATED CENTER PIN
TDMM: PAGE 6-96
203
WHERE ARE 50-OHM BNC CONNECTORS USED MOST OFTEN?
IN THE AUDIOVISUAL INDUSTRY AS A CONNECTOR FOR RF ANTENNA SIGNALS
TDMM: PAE 6-97
204
WHICH TYPE OF BNC CONNECTOR IS MOST COMMON?
75-OHM
TDMM: PAGE 6-97
205
NAME THE 3 BNC-STYE CONNECTOR DESIGNS USED IN DATA NETWORK APPLICATIONS.
1. T-CONNECTOR
2. BARREL CONNECTORS
3. TERMINATORS
TDMM: PAGE 6-97
206
NAME THE 3 VERSIONS OF THE BNC-STYLE CONNECTOR (FROM A CONNECTORIZATION POINT OF VIEW)
1. CRIMP
2. THREE-PIECE
3. SCREW ON
TDMM: PAGE 6-97
207
TYPICALLY, 50-OHM CONNECTOR IS SPECIFIED FOR USE AT FREQUENCIES UP TO ____GHz
4 GHz
TDMM: PAGE 6-98
208
TYPICALLY, 75-OHM CONNECTOR IS SPECIFIED FOR USE AT FREQUENCIES UP TO ____GHz
2
TDMM: PAGE 6-98
209
WHAT IS THE DISADVANTAGE OF A BNC-STYLE CONNECTOR?
FIELD INSTALLATION REQUIRES A SPECIAL TOOL
TDMM: PAGE 6-98
210
WHAT IS THE MOST WIDELY USED STYLE OF COAXIAL CONNECTOR FOR RESIDENTIAL CABLE SERVICE?
F-STYLE
TDMM: PAGE 6-98
211
TRUE OR FALSE
F-STYLE CONNECTORS CAN BE USED WITH CABLES THAT HAVE A STRANDED CENTER CONDUCTOR/
FALSE, F-STYLE CONNECTORS CANNOT BE USED WITH CABLES THAT HAVE A STRANDED CENTER CONDUCTOR BECAUSE THE DO NOT HAVE CENTER PINS.
TDMM: PAGE 6-99
212
WHY ARE ONE-PIECE F-STYLE CONNECTORS GAINING FAVOR?
BECASUE OF THEIR HIGHER BANDWIDTH CAPABILITIES FOR SATELLITE AND BROADBAND CABLE INSTALLATIONS.
TDMM; PAGE 6-99
213
WHAT ACTS AS THE CENTER PIN FOR AN F-STYLE CONNECTOR
SOLID CENTER CONDUCTOR
TDMM: PAGE 6-99
214
F-STYLE CONNECTORS HAVE 75-OHM IMPEDANCE MATCH UP TO ___GHz
1 GHz
TDMM: PAGE 6-100
215
NAME 2 DISADVANTAGES OF THE F-STYLE CONNECTOR.
1. IT IS LESS RELIABLE THAT THE BNC-STYLE CONNECTOR.
2. FIELD INSTALLATION OF SOME CONSTRUCTIONS REQUIRES SPECIAL TOOLS
TDMM: PAGE 6-100
216
NAME 2 TYPICAL APPLICATIONS OF THE F-STYLE CONNECTOR.
1. VIDEO TRANSMISSION AND DISTRIBUTION SYSTEMS
2. ANTENNA SYSTEMS
TDMM: PAGE 6-100
217
NAME THE 3 DESIGNS OF AN N-STYLE CONNECTORS THAT ARE USED FOR DATA NETWORK APPLICATIONS.
1. MALE
2. BARREL CONNECTORS
3. TERMINATORS
TDMM: PAGE 6-101
218
WHAT BANDWIDTH DO N-STYLE CONNECTORS SUPPORT?
11 GHz TO 18 GHz
TDMM: PAGE 6-101
219
NAME 3 ADVANTAGES OF AN N-STYLE CONNECTOR.
1. PROVIDES THE HIGHESTH BANDWIDTH AMONG COAXIAL CONNECTORS
2. EASY USE
3. RELIABLE STYLE CONNECTOR
TDMM: PAGE 6-102
220
NAME 3 DISADVANTAGES OF AN N-STYLE CONNECTOR.
1. FIELD INSTALLATION REQUIRES SPECIAL TOOLS
2. IT HAS A NARROW RANGE OF DIFFERENT OPTIONS.
3. IT IS NOT WIDELY USED IN ANALOG DIGITAL TRANSMISSION SYSTEMS.
TDMM: PAGE 6-102
221
NAME 5-TYPICAL APPLICATIONS FOR N-STYLE CONNECTORS.
1. LAND MOBILE SYSTEMS
2. WIRELESS DATA TRANSMISSION SYSTEMS'
3. PAGING AND CELLULAR SYSTEMS
4. CABLE TV HEADEND SYSTEMS
5, ANTENNA SYSTEMS
TDMM: PAGE 6-102
222
NAME THE 3 BASIC TYPES OF COAXIAL CONNECTING HARDWARE.
1. TELECOMMUNCICATIONS OUTLETS/CONNECTORS
2. PATCH PANELS
3. CABLE ASSEMBLIES
TDMM: PAGE 6-103
223
NAME THE 3 ELEMENTS OF A COAXIAL OUTLET
1. MOUNTING BOX
2. MOUNTING PLATE OR FACEPLATE
3. CONNECTOR
TDMM: PAGE 6-104
