
RLX2-IHx Series ♦ 802.11a, b, g, n
Glossary of Terms
Industrial Hotspots
User Manual
ProSoft Technology, Inc.
Page 243 of 248
Hz
Hertz
. The international unit for measuring frequency equivalent to the older unit of
cycles per second. One megahertz (MHz) is one million hertz. One gigahertz (GHz) is
one billion hertz. The standard US electrical power frequency is 60 Hz. 802.11a devices
operate in the 5 GHz band; 802.11b and g devices operate in the 2.4 GHz band.
I
IEEE
Institute of Electrical and Electronics Engineers, Inc
. IEEE is a professional organization
with members in over 175 countries and is an authority in technical areas such as
computer engineering and telecommunications. IEEE developed the 802.11
specifications.
IP Address
A 32-bit identification number for each node on an Internet Protocol network. These
addresses are represented as four sets of 8-bit numbers (numbers from 0 to 255),
separated by periods ("dots").
Networks using the TCP/IP protocol route messages based on the IP address of the
destination. Each number can be 0 to 255. For example, 192.168.0.100 could be an IP
address. Each node on the network must have a unique IP address.
K
Key
A set of information (often from 40 to as much as 256 bits in size) that is used as a seed
to an encryption algorithm to encrypt (scramble) data. Ideally, the key must also be
known by the receiver to decrypt the data.
L
LAN
Local Area Network
. A system of connecting PCs and other devices within the same
physical proximity for sharing resources such as internet connections, printers, files, and
drives. When Wi-Fi is used to connect the devices, the system is known as a wireless
LAN or WLAN.
LED
Light-emitting diode
.
Line of Sight (LoS)
A clear line from one antenna to another in a long-range wireless network.
M
MAC ID
Media Access Control address
. Every device has its own MAC address which is a
unique identifier used to unambiguously identify the source and destination of any
packet on the network.
Mbps
Megabits per second
, or a million bits per second. A measure of data rate.