User's Manual
Terms and Abbreviations
68P09255A69-3
Aug 2002
1X SC4812ET Lite BTS Optimization/ATP Software Release 2.16.1.x
PRELIMINARY
1-14
Terms and Abbreviations
Standard and Non-standard Terms and Abbreviations
Standard terms and abbreviations used in this manual are defined in
Cellular Glossary of Terms and Acronyms; 68P09213A95. Any
non-standard terms or abbreviations included in this manual are listed in
Table 1-1.
Table 1-1: Non-Standard Terms and Abbreviations
Term or Abbreviation Definition
1X One of two bandwidths currently defined in the IS-2000 CDMA specification,
which extends the capability of the IS-95A and B specifications. 1X bandwidth
provides wireless packet voice and data transmission capability at up to 144
Mbps.
ACLC AC Load Center. An SC4812ET Lite RF Base Transceiver Station (BTS)
subassembly which provides the frame interface for external AC power
connection and internal AC circuit control and protection.
BBXR The redundant BBX for a CCP shelf or cage. In the SC4812ET Lite BTS SCCP
cage, the BBX installed in slot BBX-R1 (Figure 1-6).
BBX-1X Broad Band Transceiver, 1X. Third generation BBX card with CDMA2000 1X
packet as well as IS-95A/B capability.
BBX2 Broad Band Transceiver, second generation, card
CCD Clock Combining and Distribution. SC4812-series BTS CDMA Channel
Processor (CCP) shelf module which accepts timing signals from the active
source and distributes them to other CCP shelf modules.
CIO Combiner Input/Output
companion frame A BTS frame configured to operate at the same site with another companion
frame. Companion frames may share antenna signals, but are not inter-connected
on the same LAN. Companion frames are managed as separate BTSs in the Base
Station System (BSS).
DLM DownLoad Manager. Software application resident on the GLI card which permits
download of software upgrades from the Centralized Base Station Controller
(CBSC) to BTSs without the need for a site visit.
DMAC Digital Metering, Alarm, Control. Part of the Meter Alarm Panel (MAP) which
provides control of and status information for the AC power rectifiers as well as
back-up battery monitoring and test capability. Term is used interchangeably with
MAP (see below).
DPLL Digital Phase-Locked Loop
DRDC Duplexer, Receive Filter, Dual Directional Coupler. Provides duplexing of BTS
transmit and receive signals to a single antenna and antenna signal sampling in
either the forward (transmit) or reflected (receive) direction for use by an RF
Diagnostic Subsystem (RFDS).
EMPC Expansion Multi-coupler Preselector Card. BTS expansion frame MPC module
which is used to receive, amplify, and distribute RX signals from the starter frame
MPC.
. . . continued on next page
1