Gefen CAT5 - Manual (Page 16)

12
TERMINOLOGY
CAT-5
Category 5 cable, commonly known as Cat 5, is an unshielded twisted pair type cable
designed for high signal integrity. The actual standard defi nes specifi c electrical
properties of the wire, but it is most commonly known as being rated for its Ethernet
capability of 100 Mbit/s. Its specifi c standard designation is EIA/TIA-568. Cat 5 cable
typically has three twists per inch of each twisted pair of 24 gauge copper wires within
the cable.
CAT-5e
Similar to Cat 5 cable, but is enhanced to support speeds of up to 1000 megabits per
second.
DDC
Short form for Display Data Channel, a VESA standard for communication between
a monitor and a video adapter. Using DDC, a monitor can inform the video card about
its properties, such as maximum resolution and color depth. The video card can then
use this information to ensure that the user is presented with valid options for confi
guring the display.
DDWG
Digital Display Working Group DDWG are the creators of the DVI specifi cation.
DVI
Digital Visual Interface. Connection standard developed by Intel for connecting
computers to digital monitors such as fl at panels and DLP projectors. A consumer
electronics version, not necessarily compatible with the PC version, is used as a
connection standard for HDTV tuners and displays. Transmits an uncompressed
digital signal to the display. The latter version uses HDCP copy protection to prevent
unauthorized copying of source material.
USB
Universal Serial Bus. An external peripheral interface standard for communication
between a computer and external peripherals over a cable using bi-serial transmission.
VESA
Video Electronic Standards Association, a consortium of manufacturers formed to
establish and maintain industry wide standards for video cards and monitors. VESA was
instrumental in the introduction of the Super VGA and Extended VGA video graphics
standards with a refresh rate of 70 Hz, minimizing fl icker and helping to reduce user
eyestrain and fatigue.
PS/2
A port type developed by IBM for the purpose of connecting a keyboard or mouse to a
PC. The PS/2 port has a mini-DIN plug connector containing 6 pins. PS/2 ports are used
so that the serial port can be used by another device. The PS/2 port is often called the
mouse port.