User's Manual

Eagle II GSM Radio Module Technical Manual Preliminary Draft: 08/31/00 53
Part Number: 07100017 version 00.04
© 2000 Xircom, Inc. All rights reserved.
All trademarks and copyrights are the property of Xircom, Inc.
GSM
Global System for Mobile
Communications
Standard for digital communications. Allows consistent communications in
various parts of the world despite variations in RF spectrum allocations.
Transferring the SIM (see below) permits users to roam by changing terminal
equipment.
HLR
Home Location Register
Home Location Register
ICD
Interface Control Document
Document that defines the hardware interfaces.
IMEI
International Mobile Equipment
Identity
A unique number for each GSM Terminal tracked by the GSM operators in
their Equipment Identity Register (EIR) database.
IMSI
International Mobile Subscriber
Identification
A unique number identifying the subscriber stored in the SIM card. Number is
used in conjunction with the network for call routing.
Ki
A secret code used in authentication and encryption by the terminal.
LED
Light Emitting Diode
Light Emitting Diode
MMS
More Messages to Send
More Messages to Send
MO
Mobile Originated
A voice or data call originated at the mobile terminal.
MT
Mobile Terminated
A voice or data call originated from the network and sent to the mobile
terminal.
MSC
Mobile Switching Center
The central switch of the GSM network. Performs call routing, collects call
detail records for billing, and supervises system operations.
Non-Transparent Mode
Delivers a constantly low error rate but with a non-guaranteed throughput or
delay. The Non-Transparent service provides a performance that is closest to
using a modem over a fixed PSTN line.
NRTL
Nationally Recognized Test
Laboratory
OSHA-approved Nationally Recognized Testing Laboratory
OEM
Original Equipment Manufacturer
PA
Power Amplifier
Packet
A collection of data transmitted over a digital network in a burst.
PCS
Personal Communications
Service
A collection of services and capabilities providing flexibility of access and
mobility through a combination of wireless and wireline networks.
PDU
Protocol Data Unit
Data packet defined by protocol layer of SMS interface.
PLMN
Public Land Mobile Network