Sierra Wireless MC5720, Hardware Integration Manual, Page: 26 / 30

MC5720/8755/8765 Hardware Integration Guide
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MC8755 / MC8765 Sierra Wireless MiniCards used on GSM networks
MHz MegaHertz = 10E6 Hertz (Hertz = 1 cycle/second)
MIO Module Input/Output
MPE Maximum Permissible Exposure — the level of radiation to which a
person may be exposed without hazardous effect or adverse
biological changes
OTA Over The Air or Radiated through the antenna
PCS Personal Communication System - PCS spans the 1.9 GHz radio
spectrum
RF Radio Frequency
RMS Root Mean Square
RUIM Removable User Identity Module
SA Selective Availability
Sensitivity (Audio) Measure of lowest power signal that the receiver can measure
Sensitivity (RF) Measure of lowest power signal at the receiver input that can
provide a prescribed BER/BLER/SNR value at the receiver output.
SIM Subscriber Identity Module
SNR Signal to Noise Ratio
SOF Start of Frame - a USB function
UART Universal Asynchronous Receiver Transmitter
UDK Universal Development Kit
UMTS Universal Mobile Telecommunications System
USB Universal Serial Bus
USIM Universal Subscriber Identity Module
VCC3.3 3.3 V supply voltage
WCDMA Wideband Code Division Multiple Access — In this document, the
term “UMTS” is used instead of “WCDMA”.
XIM In this document, XIM is used as part of the contact identifiers for
the USIM/RUIM interface (XIM_VCC, XIM_CLK, etc.). It indicates
either RUIM or USIM.
Table 5-1: Acronyms and definitions
Acronym or term Definition