Motorola T193, Service Manual

Page: 32 / 57

28 July 27, 2001 6881038B70
Subscriber Identity Module (SIM) and Identification Product Family C21
Subscriber Identity Module (SIM) and Identification
SIM
A SIM is required to access the existing local GSM network, or remote networks
when traveling (if a roaming agreement has been made with the provider).
The SIM card contains:
• All the data necessary to access GSM services
• The ability to store user information such as phone numbers.
• All information required by the network provider to provide access to the net-
work.
Identification
Each Motorola GSM device is labelled with a variety of identifying numbers. The
following information describes the current identifying labels.
Mechanical Serial Number (MSN)
The Mechanical Serial Number (MSN) is an individual unit identity number and
remains with the unit throughout the life of the unit.
The MSN can be used to log and track a unit on Motorola's Service Center Database.
The MSN is divided into 4 sections as shown in Figure 16.
000807a
Figure 16. MSN label breakdown
MSN 10 Digits
3 Digits 1 Digit 2 Digits 4 Digits
APC DC DC SNR
Account Product Code
i.e. StarTAC Phone130
Distribution Center
i.e. Easter Inch Date Code: Year and
Month of Shipment Unit's individual serial
number
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