Installation Instructions Chapter 1

Ripwave Base Station I&C Guide Navini Networks, Inc.
Chapter 1
12 Part #40-00047-01 Rev F v1.0 (TTA)
October 23, 2003
Term Stands For.... Meaning
CAM
1
Configuration & Alarm Manager or
2
Content Addressable Memory
1
An EMS functionality that is handled through a Graphical
User Interface for purposes of configuring elements in the
system and handling other OAM requirements.
2
Module of the
BTS software used to provide mappings of users to channels.
CBR Constant Bit Rate One of the two service categories available for the
Management PVC in the ATM/T1 BTS configuration (the
other one is UBR)
CC
1
Communications Controller or
2
Cross-check
1
A type of circuit card that resides in the Digital shelf of the
Ripwave BTS. It handles all interfaces between BTS and
network.
2
An EMS functionality that allows the system to
perform an automated sanity check of the datafill.
CD
1
Compact Disk or
2
Change Directory
1
An optical disk capable of storing large amounts of data (700x
floppy disk). It can be inserted into most PCs and “read” to
load files onto a computer
2
A software programming term in
“C” language that tells the computer to go to a different
location in the computer’s memory.
CDMA Code Division Multiple Access Digital cellular technology that uses a spread-spectrum
technique where individual conversations are encoded with a
random digital sequence. Increases capacity and speed of
communications messages between mobile units over other
types of wireless networks.
CD-ROM Compact Disk - Read Only Memory See “CD.” If a CD is not Read Only, computers can write data
to it with that capability.
CDVT Cell Delay Variation Tolerance Delay variation parameter required by UBR and CBR.
CHP Channel Processor Card A card in the digital shelf of the BTS that performs the first
stage of signal processing for up to 4 antennae. One Navini 2.4
GHz BTS has 8 antennae. The card performs digital-to-analog
conversion (DAC) and analog-to-digital conversion (ADC) for
up to 10 carriers.
CLEC Competitive Local Exchange Carrier A telephone company that competes with an incumbent Local
Exchange Carrier (LEC).
CLI Command Line Interface A text-based programming language through which a user
communicates with an operating system or an application.
CORBA Common Object Request Broker
Agent
A standard for Network Management Systems that allows
integration with NMS regardless of programming language or
Operating System.
CPE Customer Premise Equipment Communications equipment that resides at the customer’s
location.
D4 D4 A framing standard for traditional time-division multiplexing,
which standard describes user channels multiplexed onto a
trunk that has been segmented (framed) into 24 bytes of 8 bits
each. (See also ESF.)
dB Decibel Unit of measurement for sound. A logarithmic expression of
the ratio between two signal power, voltage, or current levels.
A decibel is one-tenth of a Bel, a seldom-used unit named for
Alexander Graham Bell, inventor of the telephone.
dBd Decibel/Dipole A ratio, measured in decibels, of the effective gain of an
antenna compared to a dipole antenna (2 horizontal rods in line
with each other). The greater the dBd value the higher the gain
and therefore the more acute the angle of coverage.