6809471A67-O August 20, 2003 39
Level 1 and 2 Service Manual SIM Card and Identification
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 17.
International Mobile Station Equipment Identity (IMEI)
The International Mobile station Equipment Identity (IMEI) number is an
individual number unique to the PCB and is stored within the unit's memory.
The IMEI uniquely identifies an individual mobile station and thereby provides a
means for controlling access to GSM networks based on mobile station types or
individual units. The full IMEI structure is listed in Table
3.
Where
TAC Type Allocation Code, formerly known as Type Approval Code
NN Reporting body identifier
XXXX Type Identifier
YY YY is set to 00 from 01/01/2003 until 31/03/2004
ZZZZZZ Individual unit serial number
A Phase 1 = 0.
Phase 2 = check digit defined as a function of all other IMEI digits
Other label number configurations present are:
000807-A
Figure 17. MSN Label Breakdown
Table 3. IMEI Number Breakdown
TAC Serial Number Check Digit
NNXXXX YY ZZZZZZ A
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
TM
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