Monthly Archives: April 2011

Cisco is an American-based multinational corporation that designs and manufactures consumer electronics, networking, voice, and communications technology and services. Connectzone stocks a large variety of cables for Cisco equipments and devices such as routers, switches, servers and much more. Get connected today and browse through our list of Cisco cables and find a connection that fit your networking needs. Cisco CAB-STACK Stackwise stacking cables can connect a mix of Catalyst 3750 & 3750-E stackable switches to form a single switching unit. Stacking know-how is optimized for Gigabit Ethernet & is designed

A fiber-optic technique is similar to the copper wire technique that fiber-optics is replacing. The difference is that fiber-optics use light pulses to transmit information down fiber lines in lieu of using electronic pulses to transmit information down copper lines. Taking a look at the parts in a fiber-optic chain will give a better understanding of how the technique works together with wire based systems. Where copper cabling makes use of electricity to transmit signals from finish to another, fiber optics use light pulses to accomplish the same purpose. The fiber cable is made of a transparent glass core surrounded by a mirror like covering called cladding. Light passes through the cable, bouncing off the cladding until it reaches the other finish of the fiber channel - this is called total

Multimode & Singlemode fiber are the five types of fiber in common use. Both fibers are 125 microns in outside diameter - a micron is one one-millionth of a meter & 125 microns is 0.005 inches- a bit larger than the typical human hair. Multimode fiber has light travelling in the core in lots of rays, called modes. It's a bigger core (always 62.5 microns, but sometimes 50 microns) & is used with LED sources at wavelengths of 850 & 1300 nm for slower local area networks (LANs) & lasers at 850 & 1310 nm for networks jogging at gigabits per second or more. singlemode has a much smaller core, only about 9 microns, so that the light travels in one ray. It is used for telephony & CATV with laser sources at 1300 & 1550 nm. Plastic Optical Fiber (POF) is large core (about 1mm)