Cable crimpers
- “Pinch” the connector onto a wire
– Coaxial, twisted pair, fiber - Connect the modular connector to
the Ethernet cable
– The final step of the process - Metal prongs are pushed through the insulation
– The plug is also permanently pressed
onto the cable sheath
RJ45s connectors need to be connected to either net cables
crimper removes the ___ from the end of a wire
sheith
wire types cat5 cat6
there are differnet__ for cable typers
connectors
WIFI analyzer
information about what frequencies are in use and which ones are open
will show what interferes may happen
shows you if you may need to relocate a wifi Antena
Toner generator/probe
used to find a cable
adds signal to copper wire
you have to connect a tone generator to one end of the cable
inductive prove doesnt need to touch copper wire just needs to get close
Punch down tool
put each wire into there slot on a punchdown block
pushes down the wire and cuts off any extra
cable testers
two units
lug each one to two end of the cable
it’ll tell you where each pin is connected
can’t tell you if there is cross talk signal loss
to do that you need a time domain reflextomider
loopback
test the interface of a device by looping the wire out of the device and back it
use rs 232 9 pin of 25 pin
you can also use ethernet cable t1 and fiber
Taps and port mirrors
physical data tap
you place this in the middle of a data link
you can send that data to an analyzer
same thing as a port mirror a function built into a switch
Twisted pair copper cabling
how many pair of wire on the inside
he pairs consist of _ and ___
some pair are twisted ___ then overs
what we use for Ethernet
4
the pairs consist of transmit+ and transmit -
tighter
coaxial cable
- two or more forms that share a common axis
- RG6 used in tv digital cable
Plenum space
in buldings that have a drop ceiling the air that is leaving the building goes through a space called the plenum
all of network cables are in this area as well
plenum rated cable
the jacket or or what surrounds the wire is a called a polyvinyl chloride
if the company is putting there wires in a plenum they ll need wires such as
flourinated ethylene plymer FEP
or low smoke plyvinyl chloride PVC
plenum rated cable may not be a s flexible but they are safer in a fire
UTP stand for
unshielded twisted pair
no additional shielding
most common twisted pair cabling
stp
shielded twisted pair
Additional shielding protects against interference
– Shield each pair and/or the overall cable
– Requires the cable to be grounded
- Abbreviations on the outside of the wires
u
s
f
– U = Unshielded
– S = Braided shielding
– F = Foil shielding
Direct burial STP
when you need to run a wire outside
- Provides protection from the elements
– Designed to be waterproof
– Often filled with gel to repel water
– Conduit may not be needed
Optical fiber communication
- Transmission by light
– The visible spectrum - No Radio Frequencies signal
– Very difficult to monitor or tap - Signal slow to degrade
– Transmission over long distances - Immune to radio interference - There’s no RF
Multimode fiber
- Short-range communication
– Up to 2 km - Relatively inexpensive light source
– LED is used to send light through fiber
Single-mode fiber
- Long-range communication
– Up to 100 km without processing - Expensive light source
– Commonly uses lasers to send light through the fiber
What is ISO/IEC 11801
classes of networking standards of cables
TIA telecommunications industry association
– Standards for cables, market analysis, trade shows,
government affairs, etc.
– ANSI/TIA-568: Commercial Building
Telecommunications Cabling Standard
What is T568A and T568B
Pin and pair assignments of eight-conductor 100 ohm balanced twisted pair cabling
what colors to be used for what wires
gives you two options two standards that companys can choose they both do the same thing
