structured cabling technologies
TRANSCRIPT
”
“Overview
Structured Cabling Technologies
What are structure cabling networks
Closed vs. Open structures
Backbone and Horizontal cable
Installed environments
Different types and compare and contrast them
Benefits
Color coding and Wiring sequence
Installation practices
Structured Cabling
Cabling system that allows constant moves and changes to be performed
by on site personnel
Growth and flexibility built into the cabling scheme
Can be either proprietary (closed) or non proprietary (open)
Open System Architecture
Closed systems are proprietary to a particular vendor or system
Open system give greater flexibility by being applications and
vendor independent.
Why open
Facility to run voice, video, data service over same cable.
Investment protects
On site personnel can perform their own shifts and changes, thus
reducing the cost of ownership
Closed vs. Open
Backbone
Backbone & Horizontal cabling
Horizontal
Installed environment
Topologies
Topology | Advantages
•Inexpensive to maintain
•Requires less cable
•Does not require extensive training
•Good choice for small networksBus
•Provides equal access for all devices on the ring
•Easier to manage and maintain than bus topology
•Easier to manage and maintain than bus topology
•Handles high volume traffic wellRing
•Easy to install and upgrade
•Central hub makes troubleshooting easy
•Easier to manage and maintain that bus and ring topologiesStar
Topology | disadvantages
•Difficult to isolate malfunctions because of series connections
•When one device fails, all devices fail
•Heavy traffic causes considerable slowdowns and network crashes
Bus
•Difficult to isolate malfunctions
•Expansion of network disrupts services for allRing
•Hub failure causes entire network to go down
•More expensive for cablingStar
Benefits of structured cabling
Greater flexibility
Future-proof solution
Easy, low cost moves and changes
Simpler to manage
No downtime when reconnecting equipments
Independent of protocol and network technologies
Standards & Terminology
Standard organizations
IEEE (Institute of Electrical and Electronics Engineers)
ISO (International Standards Organization)
ANSI/EIA/TIA
UTP Color Coding The purpose of giving color codes to identify
each pair easily.
Both UTP and STP confirms this standard
Wiring sequence The cable color code is the 568B standard on each
end of a straight-through 10/100BaseT cable. If a
crossover cable is needed, use the 568A standard
on one end and 568B on the other end
Use a straight thru cable assembly,568B on both
ends when connecting Hub to Xcvr or NIC Card.
When connecting hub to hub, Xcvr to Xcvr, or NIC
to NIC, the wires must crossover at the opposite
end of the cable assembly,use the 568B on one
end, 568A on the other end
Elements of structured cabling
systemsUTP cables
UTP CAT 5
UTP CAT 6e
STP CAT 5e
UTP patch panel
Z-Max 6
Z-Max 6A
CAT 6
UTP Wall Outlet
CAT 5
CAT 6
CAT 7
UTP Patch code &
Adapters
CAT 5e
RJ 45
Cable Management
Panel
558329-1
ICCMSCMA42
Installation practices
Types of pathways
Conduit
Under Floor
Suspended Ceiling
Cable tray
Summery
People make the difference
Method depends on
problem domain
Open structure is widely used
Design concepts
Standardsapplicable
Color coding approaches for
identification
References
[1] “Structured Cabling”. Arp 17 2010.
Available http://www.slideshare.net/chrismcandrew/structured-cabling. [Accessed: Aug 1, 2014].
[2] Structured Cabling Systems. [E-book] Available: http://k-
12.pisd.edu/currinst/network/if1_4st.pdf [Accessed: 2 Aug 2014].