User's Manual

PHS8-US Hardware Interface Overview
1.2 Terms and Abbreviations
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PHS8-US_HIO_v01.000 Page 8 of 40 2012-01-06
Confidential / Released
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PBCCH Packet Switched Broadcast Control Channel
PCB Printed Circuit Board
PCL Power Control Level
PCM Pulse Code Modulation
PCS Personal Communication System, also referred to as GSM 1900
PD Pull Down resistor (appr. 100k)
PDU Protocol Data Unit
PS Packet Switched
PSK Phase Shift Keying
PU Pull Up resistor (appr. 100k)
QAM Quadrature Amplitude Modulation
R&TTE Radio and Telecommunication Terminal Equipment
RF Radio Frequency
ROPR Radio Output Power Reduction
RTC Real Time Clock
Rx Receive Direction
SAR Specific Absorption Rate
SELV Safety Extra Low Voltage
SIM Subscriber Identification Module
SLIC Subscriber Line Interface Circuit
SMPL Sudden Momentary Power Loss
SMD Surface Mount Device
SMS Short Message Service
SMT Surface Mount Technology
SNR Signal-to-Noise Ratio
SRAM Static Random Access Memory
SRB Signalling Radio Bearer
SUPL Secure User Plane Location
TDMA Time Division Multiple Access
TE Terminal Equipment
TPC Transmit Power Control
TS Technical Specification
TTFF Time To First Fix
Tx Transmit Direction
UL Upload
UMTS Universal Mobile Telecommunications System
Abbreviation Description