Cabling – Horizontal and Vertical Everything you never really wanted to know…

Purpose of the lesson Bone up on terminology Get a sense for how network wiring should be done Increase understanding of why we go from patch panel to patch panel and not switch to switch

Why? Most cabling in a building consists of wiring from a patch panel in a wiring closet to another patch panel

Patch Panel A patch panel is just an un-energized device that houses the two ends of a networking wire. It gives the cable a start and end, set, that does not change. It takes a hub or switch to then energize the wire and create the network signal

Patch Panel But switching technologies change faster than wiring does Thus you set your wire in as high as it can go and change switches as technology changes Cheaper and easier

Patch panel The use of patch panels also makes troubleshooting easier. The wires from panel to panel are usually not the problem eliminating one part Remember the 100m of wire between switches, well the limit between panels is 90 m, only to allow 3m to connect the switches and 6 m to connect the computer in the other end

Wiring Closet This is literally a closet that will house the patch panel, the rack it is in, the switches that energize it and the like A closet for wiring and patch panels has to have good power, be in a central location, be ventilated and secure. Planning is necessary to reduce the amount of wiring need in a building. Placing your closets well will reduce the overall need for wire.

Wiring Closet Different types  MDC – main distribution closet, close to you pop, houses the backbone switches, main patch panels and maybe even your server  IDC – intermediate distribution closet, between the main closet and receptacles in labs and classrooms

Horizontal Cabling Cabling between IDC and classrooms and labs  May involve patch panel to panel or direct to receptacles  Energizes off of the backbone with a link from the MDC

Vertical Cabling Back bone based cabling,  Providing throughput from the POP and main distribution closet to intermediate distribution closets that then farm out the horizontal cabling.  This is the main highway of info in your building

How does it all work The main switch hooks into the POP…somehow depending on what it is, it then energizes the main patch panel in the MDC

How does it all work cont’d The MDC takes one line, the backbone as it were and transfers the info to the IDC. In the IDC this info comes in on the patch panel and then energizes the switch that then energizes the rest of the patch panel

How does it all work cont’d This is the original process in reverse, it is the patch panel that is energized which then energizes the switch, which then can energize the other wires on the patch panel

Wireless Standards of wireless  (A) a Frequency- 5 GHz Typical Data Rate - 23 Mbit/s Max Data rate – 54 Mbit/s Range – 115 feet  (B) b Frequency GHz Typical Data Rate Mbit/s Max Data rate – 11 Mbit/s Range feet

Wireless Standards of wireless  (G) g Frequency GHz Typical Data Rate – 19 Mbit/s Max Data rate - 54 Mbit/s Range – 125 feet  (N) n Frequency - 5GHz and/or 2.4GHz Typical Data Rate - 74 Mbit/s Max Data rate Mbit/s (2 streams) Range – 230 feet

Wireless WAP - wireless access point  Larger enterprises/schools Wireless Router  SOHO Small Office Home Office

Wireless Security Access must be secured  WEP Wired Equivalent Privacy  Key  WPA WiFi Protected Access  Shared secret  MAC Address Recognition