Cisco Systems 1300 Series The echoes created as a radio signal bounces off of physical objects

Glossary

multipath	The echoes created as a radio signal bounces off of physical objects.
multicast packet	A single data message (packet) sent to multiple addresses.

N

non-root bridge A wireless transceiver connected to a remote Ethernet network that communicates only with another wireless transceiver connected to the main Ethernet network.

O

omni-directional This typically refers to a primarily circular antenna radiation pattern.

orthogonal Frequency A modulation technique used by IEEE 802.11a-compliant and IEEE 802.11g-compliant wireless

Division Multiplex LANs for transmission at 6, 9, 12, 18, 24, 36, 48, and 54 Mbps.

(OFDM)

P

packet

POST

power injector

A basic message unit for communication across a network. A packet usually includes routing information, data, and sometimes error detection information.

Power on self test. A series of diagnostic tests that run during a power up sequence.

A device that supplies DC power to another device over Ethernet communication lines.

Q

Quadruple Phase Shift

KeyingA modulation technique used by IEEE 802.11b-compliant wireless LANs for transmission at 2 Mbps.

R

range			A linear measure of the distance that a transmitter can send a signal.
receiver sensitivity			A measurement of the weakest signal a receiver can receive and still correctly translate it into data.
RF			Radio frequency. A generic term for radio-based technology.
root bridge			A wireless transceiver connected to the main Ethernet network that communicates with other
			wireless transceivers connected to remote Ethernet networks.
roaming			A feature of some Access Points that allows users to move through a facility while maintaining an
			unbroken connection to the LAN.
		Cisco Aironet 1300 Series Outdoor Access Point/Bridge Hardware Installation Guide
	GL-4		OL-5048-02