Layer1

Layer 1 - Fiber Optics Fiber Optics uses light (visible and non-visble) to transmit communication signels All Fiber optic cables are made up of sever important compmen Core: is ushally made up of very thin crystal clear glass or platic that allows light to pass through. Think of the core as a guide to help ensure the light passes through to the other side. Cladding: is ushally made up of ### which has a high index of refraction, meaning when light its the cladding at the right angle is it reflected (refracted) back into the core....

Power Power may not techincally be consider part of “Layer 1” but it is a cirtial and often over look part of IT. Below I will go over the basics of power and then go into how it applies to IT. Voltage (V) Electromotive Force or often refered to as electric pressure. Common House voltage (in the US) is 120V but many higher end servers and UPS’s run on 240V....