CHAPTER 4 NDA-24298
Page 68
Issue 1
ASYD : Assignment of System Data
Note 1: Composition of Authorization Code, and its relation to Check Sum (related to INDEX 12~14).
Authorization Code consists of D0 D1 D2 D3 D4 D5 D6.
(When using Check Sum, a maximum of seven digits, including Check Digits, are available.)
There is a maximum of two Check Digits and eight Seek Digits.
• D5 is determined by Check Sum-1 and Check Code-1.
MOD10 (b
4
× D0 + b
3
× D1 + b
2
× D2 + b
1
× D3 + b
0
× D4 + D5) = Check Code-1
• D6 is determined by Check Sum-2 and Check Code-2.
MOD10 (b
4
× D0 + b
3
× D1 + b
2
× D2 + b
1
× D3 + b
0
× D4 + D6) = Check Code-2
Note 2: Only eight digits will print out on SMDR in the case of EPN – Authorization Code. Therefore, checks on authorization
codes should be limited to a total of eight digits.
1
10 00
0b
0
Not used0b
1
0b
2
0b
3
Not used
0b
4
Not used
0b
5
Not used
0b
6
Not used
0b
7
11 00
0b
0
Not used0b
1
0b
2
0b
3
Not used
0b
4
Not used
0b
5
Not used
0b
6
Not used
0b
7
12
b
0
Authorization Code Check Sum-1
b
4
= Check Sum of Digit 0
b
3
= Check Sum of Digit 1
b
2
= Check Sum of Digit 2
b
1
= Check Sum of Digit 3
b
0
= Check Sum of Digit 4
0/1 = No Check Sum/Check Sum
Note: When “00” Hex is entered, Check Sum is not used and
Authorization Codes can contain a maximum of 10
digits.
b
1
b
2
b
3
b
4
b
5
b
6
b
7
SYSTEM
DATA
TYPE
(SYS)
SYSTEM
DATA
INDEX
(INDEX)
0 – 511
DATA
(DATA)
00 – FF
(Hex)
BIT
CORRESPONDING
DATA
SYSTEM DATA CONTENTS
DATA
0/1
BIT
Seek Digits Check Digits