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A-20
Programming (cont'd)
System Data 1, Index 13. Each Bit in Index 13 directly correlates to a digit in the AUTHORIZATION
CODE assigned in AATC, and will determine the second digit of the Checksum method. Pick any Bits
0 - 4, but not the same combination of Bits as picked in Index 12.
AATC
SYS1, IN13
DESIGNATION
System Data 1, Index 14 determines the algorithm used to calculate the last two digits of every
AUTHORIZATION CODE. (Only decimal numbers may be used in this index, therefore, hexadecimal
values A to F may not be assigned). System Data 1, Index 14 = X & Y, where X and Y represent any
arbitrarily chosen decimal digit 1- 9, and where Y is used to determine the first digit and X is used to
determine the second digit in the Checksum method. The following data, 37H, has been used for the
example calculation:
SYS1, INDEX
14
DATA
Note:
If only one digit is to be added via the Checksum method, then Index 13 data will be OOH and Index 14.
Example Calculation:
In AATC, 26428 has been assigned. In System Data 1, Index 12, Bits 0 and 3 were chosen; 26428
2 + 2 = 4.
The decimal value of Bits 0 - 3 of Index 14 = 7.
4 + N =7. N = 3.
7 is obtained as any whole number greater than 4 that ends with a 7, the decimal value as determined in
System Data 1, Index 14, Bits 0 to 3. In AATC, 26428 has been assigned. In System Data 1, Index 13,
Bits 4 and 1 were chosen; 26428.
8 + 6 = 14.
The decimal value of Index 14, Bits 4 - 7 is 3.
14 + N = 23. N = 9.
23 is obtained as any whole number greater than 14 that ends with a 3, the decimal value determined in
System Data 1, Index 14, Bits 4 - 7. The AUTHORIZATION CODE will be 26428-39.
Digits 39 determined by the Checksum method will be unique to the AUTHORIZATION CODE 26428.
Note:
26428 will not be followed by any digits other than 39.
ASYD - System Data 1, Index 43, Bit 2, is service set tone sent after AUTHORIZATION CODE.
ASPA access code? 0/1: No/Yes. Assign data "1".
System Data 1, Index 43, bit 0, is AUTHORIZATION CODE required for DISA? 0/1: required/not
required. Normally assign data "0."
System Data 1, Index 93, Bit 6. Are the AMND tables Separate or Common for tenants in the system?
0/1: Separate/Common. Assign data "0" for separate tables.
System Data 2, Index 3, Bit 4: Is Account Code used with AUTHORIZATION CODE? 0/1: No/Yes.
System Data 2, Index 3, Bit 5: Type of code? 0/1: AUTHORIZATION CODE/ Forced Account Code;
assign data "0".
Page 32
Authorization Code
BIT 4
BIT 3
8
2
1
0
d4
d3
X
BIT 7
6
5
0
0
1
BIT 2
BIT 1
4
6
0
1
d2
d1
4
3
2
1
0
1
NEAX2400 IPX Feature Programming Manual
BIT 0
2
0
d0
Y
1
0
1
1
NDA-24297, Issue 1
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