User's Manual

HC25 Hardware Interface Overview
1.2 Terms and Abbreviations
12
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HC25_HO_v00.220 Page 8 of 39 2007-03-20
Confidential / Preliminary
RACH Random Access Channel
RF Radio Frequency
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
SMS Short Message Service
SRAM Static Random Access Memory
SRB Signalling Radio Bearer
TA Terminal adapter (e.g. GSM engine)
TDMA Time Division Multiple Access
TE Terminal Equipment
TS Technical Specification
Tx Transmit Direction
UL Upload
UMTS Universal Mobile Telecommunications System
URC Unsolicited Result Code
USB Universal Serial Bus
UICC USIM Integrated Circuit Card
USIM UMTS Subscriber Identification Module
WCDMA Wideband Code Division Multiple Access
Abbreviation Description