Chapter 6 - ICT Cables and Connecting Hardware Flashcards
What is the maximum distance supported for single mode fiber?
~10,000m (32,800ft)
What is the maximum distance supported for OM5 at a transmission of: 100 MB 1 GB 10Gb 40Gb 100Gb
100 MB : N/A 1 GB: N/A 10Gb: ~550m (1800ft) 40Gb: ~150m (500ft) 100Gb: ~150m (500ft)
What is the maximum distance supported for OM4 at a transmission of: 100 MB 1 GB 10Gb 40Gb 100Gb
100 MB : 1800 ft 1 GB: 3281 ft 10Gb: 1800ft 40Gb: 500ft 100Gb: ~150m (500ft)
What is the maximum distance supported for OM3 at a transmission of: 100 MB 1 GB 10Gb 40Gb 100Gb
100 MB : 1800ft 1 GB: 1800ft 10Gb: 984ft 40Gb: 328ft 100Gb: 328ft
What is the maximum distance supported for OM2 at a transmission of: 100 MB 1 GB 10Gb 40Gb 100Gb
100 MB : 1800ft 1 GB: 1800ft 10Gb: 269ft 40Gb: N/A 100Gb: N/A
What is the maximum distance supported for OM1 at a transmission of: 100 MB 1 GB 10Gb 40Gb 100Gb
100 MB : 1800ft 1 GB: 722ft 10Gb: 108ft 40Gb: N/A 100Gb: N/A
What is the maximum attenuation for OM1 cable at:
850nm wavelength
1300nm wavelength
850nm wavelength: 3.5 dB/km
1300nm wavelength: 1.5 dB/km
What is the maximum attenuation for OM2 cable at:
850nm wavelength
1300nm wavelength
850nm wavelength: 3.5 dB/km
1300nm wavelength: 1.5 dB/km
What is the maximum attenuation for OM3 cable at:
850nm wavelength
1300nm wavelength
850nm wavelength: 3.5 dB/km
1300nm wavelength: 1.5 dB/km
What is the maximum attenuation for OM4 cable at:
850nm wavelength
1300nm wavelength
850nm wavelength: 3.5 dB/km
1300nm wavelength: 1.5 dB/km
What is the maximum attenuation for OM5 cable at:
850/880nm wavelength
910/940nm wavelength
3.0 dB/km
What is the maximum attenuation for OS1 cable at:
1310nm wavelength
1550nm wavelength
1.0 dB/km
What is the maximum attenuation for OS1a cable at:
1310nm wavelength
1383nm wavelength
1550nm wavelength
1.0 dB/km
What is the maximum attenuation for OS2 cable at:
1310nm wavelength
1383nm wavelength
1550nm wavelength
0.4 dB/km
The bandwidth for optical fiber cable transmission performance parameters are as follows:
OM1 : OM2: OM3: OM4: OM5:
OM1: 200 MHz-km and 500 MHz-km
OM2: 500 MHz-km and 500 MHz-km
OM3: 1500 MHz-Km (OFL), 2000 MHz-km (EMB) and 500 MHz-km
OM4: 3500 MHz-km (OFL), 4700 MHz-km (EMB), and 500 MHz-km
OM5: 3500 MHz-km (OFL), 4700 MHz-km (EMB) at 850
What are the advantages of BIX-style connectors?
- High quality, reliable, and durable electrical contact
- High transmission performance characteristics
- Simple, inexpensive design
- Short termination time
- Allows connections to be created in one-pair increments
- Wide range of connector configurations
- Can be used in a number of different styles of connecting hardware
- Patch cords used for cross connections and interconnections to BIX style connectors can be terminated in the field with 100 percent transmission compliant BIX-plugs
- High density of terminations
What are the disadvantages of BIX style connectors?
- It is not widely used by the industry
- The conductor termination is performed with a special tool
- It is nonexistent in screened versions as a stand-alone connector
Balanced twisted pair cable designations use an x/y designation where x is the overall screen type and Y is the individual pair screen type. For the x designations what does the following letters designate a cable have?
U = \_\_\_\_ F = \_\_\_\_ S = \_\_\_\_ SF = \_\_\_\_
U = Overall screen absent F = Overall foil screen S = Overall braid screen SF = Dual overall screen (foil braid)
Balanced twisted pair cable designations use an x/y designation where x is the overall screen type and Y is the individual pair screen type. For the y designations what does the following letters designate a cable have?
U = \_\_\_\_ F = \_\_\_\_
U = Individual screens absent F = Individual foil screens
24 AWG stranded copper patch cords attenuate up to ___ more than solid cables.
A) 10 percent
B) 15 percent
C) 20 percent
D) 30 percent
C) 20 percent
Copper patch cords should be constructed with stranded cable to allow flexibility.
What are the three levels of patch panel connection densities?
Low density with the following number of connections (ports):
12 or 16 per 1 RMU
24 or 32 per 2 RMU
48 per 3 RMU
Medium density with the following number of connections (ports):
24 per 1 RMU
48 per 2 RMU
High density with the following number of connections (ports):
48 per 1 RMU
True or False
A time domain reflectometer (TDR) test is a required acceptance testing for balanced twisted-pair cabling.
False
TDR sends pulses of energy through the cabling, and when the pulses encounter the end or a fault, it reflects a portion of the pulse energy back.
TDR is a powerful tool for troubleshooting cabling problems.
T568A has 8 position pin/pairs in what pair order?
Pair 3 (1,2; White Green) Pair 2 (3,6; White Orange) Pair 1 (4,5; Blue, White) Pair 4 (7, 8; White, Brown)
T568B has 8 position pin/pairs in what pair order?
Pair 2 (1,2; White Orange) Pair 3 (3,6; White Green) Pair 1 (4,5; Blue, White) Pair 4 (7, 8; White, Brown)
The splice insertion loss allowance for network cabling standards is 0.3dB per optical splice for a:
A) mechanical or fusion multimode splice
B) Fusion multimode or singlemode splice
C) mechanical or fusion, multimode or singlemode splice
C) mechanical or fusion, multimode or singlemode splice
What is the minimum acceptable performance level for network cabling?
Cat 5e
What is the recommended cabling to service a majority of applications?
Cat 6a
What is the BICSI minimum recommended cable performance?
Cat 6a
Fusion and mechanical optical fiber splices shall have a minimum return loss of ____ for multimode fiber and ____ for single mode fiber.
20dB for multimode
35dB for single mode
Which one of the following is not a predominant type of coaxial cable?
A) RG 59
B) RG 75
C) Series 11
D) Series 6
B) RG 75
Stranded balanced twisted-pair patch cords may exhibit ___ (ANSI/TIA) to ____ (ISO/IEC) more attenuation than solid conductors.
A) 10 percent; 25 percent
B) 15 percent; 40 percent
C) 20 percent; 50 percent
D) 25 percent; 45 percent
C) 20 percent; 50 percent
