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CHAPTER 5: TECHNICAL GLOSSARY
Category 5e/6/7 (CAT5e/6/7) Network Cabling — Category 5e/6/7 cable is commonly also referred to as CAT5e/6/7. This cabling is
available in either solid or stranded twisted pair copper wire variants and as UTP (Unshielded Twisted Pair) or STP (Shielded Twisted Pair).
UTP cables are not surrounded by any shielding, making them more susceptible to electromagnetic interference (EMI). STP cables include
shielding over each individual pair of copper wires that provides better protection against EMI. Category 5 has been superseded by CAT5e
cabling, which includes improved data integrity to support high-speed communications.
USB Cables — USB cables have two distinct connectors. The Type A connector is used to connect the cable from a USB device to the Type
A port on a computer or hub. The Type B connector is used to attach the USB cable to a USB device.
USB Type A USB Type A
USB Type B USB Type B
port connector
port
connector
FIGURE 5-1. USB CABLES
