Cable Basics

Cable Basics Rating: 5,7/10 2107votes

Follow me at ByMomKim on Facebook for the latest news! A Like would be appreciated The 10 Commandments of Cable Crochet The simple Basic Cable Crochet is a. I am preparing some customer education material on coaxial cables for customers (Figure 1 shows some coaxial cable examples) and I thought this information was worth. Crack Para Windows 7 Home Basic. Insulation is an important cable part. Surrounding the conductor, it prevents electrical leakage and contact with other conductors. Insulation also protects the cable.

Cable Basic Channels

By You will find two main types of networking cables in any bundle of cables lying around your office. The majority of the cables will be straight-through cables, but some may be crossover cables. In straight-through cables, the eight pins or wires that make up the cable match directly from one side of the cable to the other.

Cable Basics

With crossover cables, the send and receive wires are exchanged with each other or are crossed. In most cases, you will want to use the standard cable because these cables are designed for connecting devices or hosts to a switch. Crossover cables are designed for switch-to-switch connections. Many of the switches in Cisco’s product line support Auto-MDIX, which allows you to use a straight-through cable to connect two switches. If your switch does not support Auto-MDIX (or has it disabled), using a straight-through cable will not work to connect the switches, and the LED on that port will not illuminate. Bass Pro Onboard Charger Manual on this page.

If you forget this, remember to check the cable when interconnecting the switch. These cables will have either fiber connectors or some type of RJ45 connectors. Typically, you will use RJ45 connectors in ports, as shown. In this figure, notice that each switch port is numbered and illuminates when a running device is connected to the switch. Also, ensure that your cables still have their retaining clips on them and that the connectors are fully seated in the switch port socket. Just as straight-through cables will not connect switches with auto-MDIX disabled, crossover cables will not connect devices to switches with auto-MDIX disabled. After you have connected your client device to the switch, do not expect to be able to communicate with your new network neighbors right away.

By default, Spanning Tree Protocol (STP) is enabled on all of your ports, which means that new devices are not allowed to communicate until the switch is sure that the connected device is not another switch. STP does this by implementing a listening phase during which the switch is not allowed to send traffic to main data network. If the switch passes the test, then the port transitions into a forwarding state. You will see the light for that port change from amber (blocking) to green (forwarding). If you are powering up a switch from your shelf, do not connect it to the main network just yet. If the switch you are powering up has a VLAN database with a higher reversion number than your production switches, it will overwrite your production configuration, possibly deleting all of your production VLANs.

Figure 1: Different Types of Coaxial Cable. I am preparing some customer education material on for customers (Figure 1 shows some coaxial cable examples) and I thought this information was worth documenting here.

Our fiber optic products interface to coaxial cables so that service providers can use existing in-home wiring. Coaxial cable is much more commonly used in the United States for residential interconnect than in the rest of the world -- about have coaxial cable already wired within them. In my opinion, it is also the most misunderstood of the broadband interconnection products. My intent here is to cover some of the basic math associated with two important coaxial cable parameters. In later posts, I will discuss how the temperature affects coaxial cable losses and length, which are the specific topics that I am addressing with customers this week.