Manual Part 7

RBS 2000Glossary
TRA Transcoder Rate Adapter
The TRA Unit (TRAU) in BSC performs transcoding
of speech information and rate adaptation of data
information.
Tracy ASIC in the TRU
TRS
Transceiver System
TRU Transceiver Unit
TRX Transceiver (combined transmitter and receiver)
TRXC
Transceiver Controller
TS
Time Slot
A 0.577 ms period (TDMA frame subunit) corresponding
to 156.25 raw bits of information. The eight time slots of
each TDMA frame are numbered 0...7.
TT Total Time
TU Timing Unit
TX Transmitter
TXA
Transmitter Antenna A
TXB
Transmitter Antenna B
TXBP
Transmitter BandPass filter
TXU Radio Transmitter Unit
UAS
Unavailable Seconds
UAST
UnAvailable STate supervision
UL Underwriter Laboratories
uplink Signalling direction from the MS to the system.
UPS
Uninterrupted Power Supply
VCO
Voltage Controlled Oscillator
VSWR
Voltage S
tanding Wave Ratio RF signal measure. The
quotient between transmitted and reflected voltage.
22 (24)
EN/LZT 720 0283 Uen R1B