User's Manual

Navini Networks, Inc. Ripwave Base Station I&C Guide
16
Term Stands For.... Meaning
LCP
Link Control Protocol Basis of the Point-to-Point Protocol (PPP) scheme for negotiating
and establishing connections.
LED
Light-emitting Diode An electronic device that lights up when electricity passes
through it. Often used to indicate equipment or system state.
LLC
Logical Link Controller A protocol that governs the transition of frames between data
stations regardless of how the medium is shared. It’s the upper
sub-layer that further defines the Media Access Control (MAC)
protocol. It provides the basis for an unacknowledged
connectionless service on a LAN - i.e., error correction,
multiplexing, broadcasting.
LOS
Line-of-sight Describes laser, microwave, RF, and infrared transmission
systems that require no obstruction in a direct path between the
transmitter and the receiver.
MAC
Media Access Control Protocol that governs access to a network in order to transmit
data between nodes. In a wireless LAN, the MAC is the radio
controller protocol (L2).
Mb
Megabit One million (1,000,000) bits.
MB
Megabyte One million bytes. Literally - 1,048,576 bytes.
Mbps
Megabits Per Second Transmission speed at rate of one million bytes per second.
MCBS
Multi-Carrier Beam Forming
Synchronized
Multiple Access technology used by Navini Ripwave systems
MDM
Modem Card A card in the Navini BTS that converts digital signals into analog
so the signals can be transmitted over telephone lines, and vice-
versa. Modem stands for modulator/demodulator.
MHz
Megahertz One million (1,000,000) hertz - cycles per second. Normally used
to refer to how fast a microprocessor can execute instructions.
MIB
Management Information Base A collection of managed objects used in SNMP-based networks.
MIBs carry information in a standard format so external tools can
analyze network management and performance.
MMDS
Multipoint Multi-channel
Distribution Service
Fixed wireless, high-speed local service that operates at 2.1 - 2.7
GHz. Speed 10 Mbps. Originally conceived for cable TV service.
NE
1
Near-end or
2
Network Element
1
The transmitting end, versus the receiving end, of a signal
transmission.
2
A router, switch, or hub in an ISDN network.
NEC
N
ational Electrical Code Official rules and regulations that apply to the installation of
electrical equipment in the U.S.
NIC
N
etwork Interface Card A computer circuit board or card that is installed in a computer
so that it can be connected to a network. Network interface cards
provide a dedicated, full-time connection to a network.
NLOS
N
on Line-of-site Describes laser, microwave, RF, and infrared transmission
systems that can penetrate obstructions in the path between the
transmitter and the receiver.
NMS
N
etwork Management Syste
m
A product that helps manage a network generally hosted on a
well-equipped computer such as an engineering workstation. The
system tracks network statistics and resources.
NOC
N
etwork Operations Center A centralized point, much like a traffic control tower, where
technicians or engineers can monitor network activity, alarms,
and statistics, as well as make network configuration and other
changes dynamically. For Internet, the NOC is often a hub for
ISP services.