LAVA’s wireless serial device servers (WiFi ESLs) can operate in Ad Hoc or Infrastructure modes. Ad Hoc networks can be set up simply and easily with no need for a pre-existing wireless network, or for additional network hardware beyond the nodes in the network itself.
Infrastructure networks are collections of wireless devices attached to an intermediate piece of network infrastructure, typically an access point, router, or PC running access point software.
Advantages of Infrastructure networks include greater power and distance than most Ad Hoc networks, greater scalability and stability, and better security.
Cable is the medium through which information usually moves from one network device to another. Fiber optic cabling consists of a center glass core surrounded by several layers of protective materials.
Fiber optic cables have the ability to transmit signals over much longer distances than coaxial and twisted pair. We are a group of current or aspiring teachers currently studying at Pace University in Westchester County in New York State.
The information listed on this website is intended to assist Network Administrators in the mapping of Ethernet cables for T-568A Straight-Through Ethernet Cable.
This article outlines the necessary tools and products in order to make your own ethernet cables.
This article highlights the different types of Ethernet cabling include Cat 5, Cat 5e, Cat 6 and Cat 7.
This site includes an interesting video that shows and tells you how Fiber Optic cables are developed. This stie provides an thorough overview of Fiber Optic cables with an emphasis to cable design, connector types, and the difference between single mode and mulimode.


These two modes are fundamentally different, each with their own advantages and disadvantages.
In their simplest form, Ad Hoc networks are peer-to-peer connections between two wireless devices capable of operating in Ad Hoc mode. A WiFi ESL in Infrastructure mode becomes a wireless part of a larger Local Area Network (LAN).
These advantages come at the cost of greater expense to set up, and of reduced flexibility. For one thing, it means that a WiFi ESL in Ad Hoc mode is an extremely simple and effective means of adding a serial port to a laptop, with no need for USB-to-serial, hard wired Ethernet-to-serial connection, or a wireless router.
Unshielded twisted pair (UTP) is the most popular and is generally the best option for school networks.
It transmits light rather than electronic signals eliminating the problem of electrical interference. A plastic coating then cushions the fiber center, and Kevlar fibers help to strengthen the cables and prevent breakage. Multimode cable has a larger diameter; however, both cables provide high bandwidth at high speeds. This article also list the wire maps for assorted Ethernet cables and also describes what each pin does in each arrangement. The site includes descriptions of each connector type and also includes a very clear image which shows what it looks like. Disadvantages of Ad Hoc networks include generally shorter working ranges than those of more highly-powered Infrastructure networks, decreasing performance as the number of devices in an Ad Hoc network increases, and no bridge to wired networks. For another, in Infrastructure mode, WiFi ESLs offer all the advantages of wired networked serial ports: simplicity, reliability, and configurability.


In some cases, a network will utilize only one type of cable, other networks will use a variety of cable types. This makes it ideal for certain environments that contain a large amount of electrical interference.
This capacity broadens communication possibilities to include services such as video conferencing and interactive services. Another disadvantage of conventional Ad Hoc networks is that they do not implement the strongest levels of security now available. The type of cable chosen for a network is related to the network's topology, protocol, and size.
Each pair is twisted with a different number of twists per inch to help eliminate interference from adjacent pairs and other electrical devices.
Understanding the characteristics of different types of cable and how they relate to other aspects of a network is necessary for the development of a successful network. The tighter the twisting, the higher the supported transmission rate and the greater the cost per foot.
Although UTP cable is the least expensive cable, it may be susceptible to radio and electrical frequency interference (it should not be too close to electric motors, fluorescent lights, etc.). If you must place cable in environments with lots of potential interference, or if you must place cable in extremely sensitive environments that may be susceptible to the electrical current in the UTP, shielded twisted pair may be the solution.



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