User's Manual

RF Station I D This is a configurable number, from one to 2.048, that identifies an
AP or CPE to the network.
RSSI Received Signal Strength I ndicator. Strength of received signal
expressed in dB. The Access Point measures RSSI as a fade
margin value.
11.16 S
Sensitivity The minimum signal strength required for usable performance,
expressed in dBm.
Shadowing Shadowing is a form of diffraction typically caused by antennas
being mounted too close to a structure, where they lose a portion
of the signal lobe due to reflection. The receiving antenna is in a
shadowed area. To minimize shadowing, mount the antenna
higher.
SNMP Simple Network Management Protocol. A protocol used to remotely
manage a network element by polling, setting terminal values, and
monitoring network statistics and events. It is the de facto internet
work management standard, designed to provide a mechanism for
exchanging management information in a TCP/ I P based Internet
environment.
SNMP NMS
Trap I P Address
This is the address to which all the alarms and event messages are
sent.
Spectrum
Analyzer
An instrument that captures RF energy and displays its amplitude
and frequency on a screen.
Spread
Spectrum ( SS)
Any of a group of modulation formats in which an RF bandwidth
much wider than the signal bandwidth is used to transmit data,
resulting in a greater immunity to noise interference.
Straight-
Through Cable
A straight-through cable is wired the same at both ends. That is,
pin one connects to pin one, pin two to pin two, and so on.
Straight through cables are used to connect an IDU to a PC.
System Gain The maximum path loss that the system can support and produce
usable data transmission.
System I mage
File
The Access Point uses system image files to store system
configuration settings. The default system image file is called the
factory image and is used when the units are first powered up.
11.17 T
Telnet An Internet communications protocol that enables a computer to
function as a terminal working on a remote computer. A computer
with a network connection to an Access Point can telnet to any of
the units and access their configuration menus.
LibraPlus 5860 User Guide Appendix B: Def initions: S Page 87 of 95