User's Manual

Terms and Abbreviations

68P09255A69-3

Aug 2002

1X SC4812ET Lite BTS Optimization/ATP Software Release 2.16.1.x

PRELIMINARY

1-16

Table 1-1: Non-Standard Terms and Abbreviations

Term or Abbreviation Definition

RGPS Remote Global Positioning System. GPS receiver and signal distribution

subsystem which provides digital timing information for up to four BTS RFMFs

at a cell site.

RGPS expansion

primary frame

BTS frame where the RGD is located and which serves as the distribution point

for RGPS digital timing signals to other (secondary) BTS frames at a cell site.

RGPS expansion

secondary frame

BTS frame which receives RGPS digital timing signals distributed from the

primary RGPS expansion frame at a cell site.

RHSO Remote High-Stability Oscillator. Subsystem which generates and distributes

synchronization signals from a single HSO to up to four RF modem frames.

SCCP Small CDMA Channel Processor. The type of CCP shelf used in the SC4812ET

Lite BTS.

test equipment set The LMF computer, communications test set, directional couplers, attenuators,

termination loads, associated test cables, and adapters needed for the complete

calibration and acceptance testing of a BTS. The test equipment set is calibrated

and maintained as a unit. When one component of a set is replaced, the complete

set must be recalibrated to ensure measurement errors are not introduced during

BTS optimization and ATP.

stand-alone frame See starter frame

starter frame A BTS frame which can operate as a stand-alone BTS or serve as the initial frame

in a companion frame installation. After an SC4812ET Lite starter frame is

modified to operate with a companion frame, its configuration is identical to the

added companion frame.

TCP Temperature Compensation Panel. A function of the SC4812ET Lite MAP which

provides the capability to adjust DC voltage output of the rectifiers to compensate

for variations resulting from temperature changes.

TRDC Transmit & Receive Dual Directional Coupler (Non-duplexed, Receive Filter).

TRDCs contains separate transmit and receive paths and bandpass filters which

are not connected electrically. Transmit and receive antenna signals are not

duplexed and must be handled by separate antennas. Each RF path contains a dual

directional coupler on the antenna port which allows sampling of antenna signals

in the forward (transmit) and reflected (receive) directions for use by an RFDS.