Chapter 5 Flashcards
What are the three main types of physical cabling?
Coaxial, TP and Fiber Optic
What are the common types of coaxial cables used and what are they used for?
RG-6 coax for digital cable/satellite TV and RG-59 coax for analog cable TV
What is the maximum distance for a RG-6 coax cable?
304m
What is the maximum distance for a RG-59 coax?
228m
What type of coax cable would you use for digital cable/satellite TV?
RG-6
What type of coax cable would you use for analog cable TV?
RG-59
What types of fiber optic cable are available?
SMF and MMF fiber
What are the main types of TP cabling in use?
Cat 5 UTP or STP, Cat 5e UTP, Cat 6 UTP, Cat 6A UTP, Cat 7 STP and Cat 8 STP
What are the specs for different categories of TP cables?
Cat 5 - up to 100Mbps, up to 100m (100BaseT)
Cat 5e - up to 1GBps, up to 100m (1000BaseT)
Cat 6 - up 10 10Gbps, up to 55m (10GBaseT)
Cat 6a - up to 10Gbps, up to 100m (10GBaseT)
Cat 7 - up to 10Gbps, up to 100m (10GBaseT)
Cat 8 - up to 25/40Gbps, up to 30 metres OR 100Gbps up to 100m (25GBaseT or 40GBaseT)
Why would you use Cat 6 if it has lower speed rates than previous categories?
It’s the lowest grade usable for connecting different parts of a large network, such as over different floors of a building
Which categories of TP use STP?
Cat 7 and 8
What fiber optic cables are available?
MMF fiber - 1Gbps up to 550m (1000BaseLX or 1000BaseSX)
MMF fiber - 10Gbps up to 300m (10GBaseSR or 10GBase SW)
SMF fiber - 10Gbps up to 40km (10GBaseER or 10GBaseEW)
Where is MMF typically used?
In shorter, horizontal cables
Where is SMF typically used?
In phone systems and backbone cabling, or longer cabling
What are the pros and cons of fiber optic?
Pros - immune to electrical interference
Cons - expensive and the signal will eventually degrade
When would you use an extra waterproof sheathing?
For running cables outside of underground
When would we use a cable guard?
If a cable might be stepped on
How deep should cables be buried?
6” to 8” below ground
What types of connectors are used for coaxial cables?
vampire taps, BNC and T connectors are older but not really used now
F type connectors are common, mostly for RG-6 but sometimes RG-59
How would you select and connect and connector for a coaxial cable?
I would use an F type connector, push the exposed end of the copper into the F type connector and screw it into place
What type of connector would you use with a Class I Cat 8 (Cat 8.1) cable?
RJ-45
How would you use a RJ-45 connector with a Class II Cat 8 (8.2) cable?
I wouldn’t, they aren’t compatible
What connector types are available for TP cables?
RJ-45, RJ-11 and punchdown blocks (66 or 110)
Why would you use a crimper?
To connect an RJ connector to a TP cable
Why would you use a splitter?
To split TP cabling into two sets of signals using two pairs per signal. However, it’s better to use a hub or switch
What colour is assigned to TP pair 1?
Blue
What colour is assigned to TP pair 2?
Orange
What colour is assigned to TP pair 3?
Green
What colour is assigned to TP pair 4?
Brown
Which wire of each TP pair is twisted with white?
Wire 1
What is the T568A cabling standard?
Pin 1: Pair 3 Wire 1 - White/green
Pin 2: Pair 3 Wire 2 - Green
Pin 3: Pair 2 Wire 1 - White/orange
Pin 4: Pair 1 Wire 2 - Blue
Pin 5: Pair 1 Wire 1 - White/blue
Pin 6: Pair 2 Wire 2 - Orange
Pin 7: Pair 4 Wire 1 - White/brown
Pin 8: Pair 4 Wire 2 - Brown
What is the T568B cabling standard?
Pin 1: Pair 2 Wire 1 - White/orange
Pin 2: Pair 2 Wire 2 - Orange
Pin 3: Pair 3 Wire 1 - White/green
Pin 4: Pair 1 Wire 2 - Blue
Pin 5: Pair 1 Wire 1 - White/blue
Pin 6: Pair 3 Wire 2 - Green
Pin 7: Pair 4 Wire 1 - White/brown
Pin 8: Pair 4 Wire 2 - Brown
What changes in crossover cabling?
Essentially swaps to the other standard, but reverses the blue and brown cable pairs
What colour is the cable in pin 1 under T568A?
White/green
What colour is the cable in pin 2 under T568A?
Green
What colour is the cable in pin 3 under T568A?
White/orange
What colour is the cable in pin 4 under T568A?
Blue
What colour is the cable in pin 5 under T568A?
White/blue
What colour is the cable in pin 5 under T568A?
Orange
What colour is the cable in pin 7 under T568A?
White/brown
What colour is the cable in pin 8 under T568A?
Brown
What colour is the cable in pin 1 under T568B?
White/orange
What colour is the cable in pin 2 under T568B?
Orange
What colour is the cable in pin 3 under T568B?
White/green
What colour is the cable in pin 4 under T568B?
Blue
What colour is the cable in pin 5 under T568B?
White/blue
What colour is the cable in pin 6 under T568B?
Green
What colour is the cable in pin 7 under T568B?
White/brown
What colour is the cable in pin 8 under T568B?
Brown
What colour are patch cables?
Black
When do you need to use a crossover cable?
When connecting a computer to a router or a switch, or when connecting two computers or two hubs or two routers
What are the specs (ethernet, max speed and max distance) of a Cat 5 UTP/STP cable?
100BaseT, 100Mbps and 100m
What are the specs (ethernet, max speed and max distance) of a Cat 5e UTP cable?
1000BaseT, 1Gbps and 100m
What are the specs (ethernet, max speed and max distance) of a Cat 6 UTP/STP cable?
10GBaseT, 10Gbps and 55m
What are the specs (ethernet, max speed and max distance) of a Cat 6a UTP/STP cable?
10GBaseT, 10Gbps, 100m
What are the specs (ethernet, max speed and max distance) of a Cat 7 STP cable?
10GBaseT, 10Gbps and 100m
What are the specs (ethernet, max speed and max distance) of a Cat 8 STP cable?
10GBaseT, 10Gbps and 100m
What are the specs (ethernet, max speed and max distance) of a MMF fiber cable?
1000BaseLX or 1000Base SX, 1 Gbps and 550m
OR
10GBaseSR or 10GBaseSW, 10Gbps and 300m
What are the specs (ethernet, max speed and max distance) of a SMF fiber cable?
10GBaseER or 10GBaseEW, 10Gbps and 40km
What types of connectors would you use for a fiber optic cable?
ST (straight tip), SC (subscriber/square connector) or LC (lucent connector)
How would you use an ST connector on a fiber optic cable?
Using the twist and lock attachment
How would you use an SC connector on a fiber optic cable?
Releasing the latch to attach/remove
Where are SC connectors mostly used?
For SMF or MMF fiber optic cables
Where are LC connectors mostly used?
With adapters, fast storage area networks and Gigabit ethernet adapters
