...Drain Wire • A shielded cable will have a wire running the length of the cable between the shield and the insulated wires. This is the drain wire. Normal practice is to have the shield connected to a specific pin at one end. • Drain wire normally co...
...Fibre • Multimode fibre cable has a large-diameter core and therefore has multiple modes of propagation—that is, several wavelengths of light are used in the fibre core. It’s primarily used for lighter- capacity or shorter-distance applications. • M...
...twisted-pair (STP) cable using either a DB9 connector or a unique square connector called the IBM data connector. Later, Token Ring was adapted to use conventional unshielded twisted-pair (UTP) cable with RJ-45 connectors. The most common kinds...
...of wire in 4-pair CAT5/CAT5e/CAT6 cable, leaving the other two pairs free to transmit power for Power over Ethernet (PoE) applications. However, Gigabit Ethernet or 1000BASE-T uses all four pairs of wires, leaving no pairs free for power. So how ca...
...to consolidate the cable clutter associated with multiple peripherals and ports, USB supports all types of computer- and telephone-related devices. • USB detects and configures the new devices instantly • Before the arrival of Universal Serial ...
...money. • Computer cables can only be too short, but never too long. The same applies to networking cables. Sometimes it is just the last meter that is missing, but in many cases some kilometres are missing. A standard 10/100 or 10/100/1000 Cop...
...ratios • Within a CATx cable of a certain length, the individual pairs might have individual different lengths, caused by higher or lower twist ratios. • There are two common cable standards: • One with a 2 + 2 structure (two pairs of approximately...
...more. You can run fibre cable next to industrial equipment without worry. Fibre is also less susceptible to temperature fluctuations and can be submerged in water. • Security • Fibre doesn't radiate signals and is extremely difficult to tap. If it i...
...connecting IEEE-488 cables, some rules apply. The total number of devices should be 15 or less. The total length of all cables should not exceed 2 metres multiplied by the number of connected devices, up to a maximum of 20 metres. And no more th...
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