Redhawk II GSM Modem Users Guide
Draft: 10/30/00
47
Part Number: 07100020 version 00B
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All trademarks and copyrights are the property of Xircom, Inc.
SIM
Subscriber Identification Module
“Smart Card” technology that contains user information and has four
main functions:
"
Authentication
"
Storage of data
"
Assist in encryption process
"
Subscriber protection
SMS
Short Message Services
Services provided by GSM network allowing the transmission and receipt
of short messages.
SMSC
Short Message Service Center
Location of SMS store and forward message server.
TBD
To Be Determined
Transparent Mode
Delivers a service with a variable error rate, with a guaranteed
throughput and delay.
Tx
Transmit
Type Approval
Rigorous testing required by GSM operators to ensure terminals operating
on network does not degrade performance, capacity, or functionality of
GSM network.
UL
Underwriters Laboratory
Testing agency chartered with ensuring safety of electrical devices.
USSD
Unstructured Supplementary Service Data
V.24 Serial Interface
The ITU-T standard defining interchange circuits between DTE and DCE.
V.24 is the ITU-T equivalent of EIA standard RS-232, with the exception
of voltage levels.