Ericsson MDX LBI-39014A Maintenance Manual page 10

In the Motorola tone format, the first tone may be one to
three tones: A for individual call, B for Quick-Call and C for
Group Call. The second or final tone is B in all cases.
The Motorola tone format is illustrated as follows:
INDIVIDUAL CALL FORMAT
<-1.0 SEC MIN-> <----NONE----> <--3 SEC MIN-->
TONE A GAP TONE B
GROUP CALL FORMAT
<-1.0 SEC MIN-> <----NONE----> <--3 SEC MIN-->
TONE C GAP TONE B
QUICK CALL FORMAT
<-------------------------------8 SEC------------------------------->
TONEB
INDIVIDUAL CALL
Tables 4 & 5 may also be used to determine the tone fre-
quencies. The first digit of the code determines the tone groups
used in the code (See Table 4). Then Table 5 is used to deter-
mine the actual tone frequencies.
For a code of 124, the tone groups used are shown in Table
4. Tone A and Tone B are both located in Tone Group 1 and
Tone B is tone number 4. Refer to the following examples for
additional information.
EXAMPLE 1 - Code 098:
The "0" in Table 4 (First Digit of Code) shows that Tone A
is Tone Group 4 and Tone B is Tone Group 2 (See Table 5).
Tone number 9 in Tone Group 4 is 524.6 Hz
Tone number 8 in Tone Group 2 is 879.0 Hz
EXAMPLE 2 - Code 265:
The digit "2" in Table 5 shows that both Tone A and Tone B
are both in Tone Group 2.
Tone number 6 is 788.5 Hz
Tone number 5 is 746.8 Hz
Table 5 - Motorola Type Coder Numbers
First Digit of Group From Which Group From Which
Code Tone A Is Selected Tone B Is Selected
1 1 1
2 2 2
3 1 2
4 4 4
5 5 5
6 2 1
7 4 5
8 5 4
9 2 4
0 4 2
A 3 3
GROUP CALL (Quick-Call Format)
In Group Call application, the Tone Group is determined by
Table 7, while the frequency is determined by Table 6. Refer to
the following examples.
NOTE
Group Call code numbers range from 00 to 99. How-
ever, there are several group calls with the same Tone
B frequency. This limits the total number of groups
called to 40.
EXAMPLE 1 - Group Call Code 07 (also code 27 and 37):
The digit "0" in Table 7 shows the Tone B is in Tone Group
2 (TG2) along with 20 to 29 and 30 to 39. Tone number 7 in
Tone Group 2 is 832.5 Hz (See Table 6).
EXAMPLE 2 - Group Call Code 98 (also code 48 and 88):
The digit "9" in Table 7 shows that Tone B is in Tone Group
(TG4) along with 40 to 49 and 80 to 89. Tone number 8 in
Tone Group 4 is 496.8 Hz.
Table 6 - Motorola Tone Frequencies and Groups
Tone Tone Tone Tone
No. Group 1 Group 2 Group 3
1
349.0 Hz 600.9 Hz 288.5 Hz
2 368.5 Hz 634.5 Hz 296.5 Hz
3 389.0 Hz 669.9 Hz 305.7 Hz
4 410.8 Hz 707.3 Hz 313.0 Hz
5 433.7 Hz 746.8 Hz 953.7 Hz
6 457.9 Hz 788.5 Hz 979.9 Hz
7 483.5 Hz 832.5 Hz 1006.9 Hz
8 510.5 Hz
879.0 Hz 1034.7 Hz
9 539.0 Hz 928.1 Hz 1063.2 Hz
0 330.5 Hz 569.1 Hz 1092.4 Hz
Table 7 - Motorola Group Call Tone Groups (TG)
Tone Number
00-09
10-19
20-29
30-39
40-49
50-59
60-69
70-79
80-89
90-99
LBI-39014A
Tone Tone Tone
Group 4 Group 5 Group 6
339.6 Hz 584.8 Hz 1153.4 Hz
358.6 Hz 617.4 Hz 1185.2 Hz
378.6 Hz 651.9 Hz 1217.8 Hz
399.8 Hz 688.3 Hz 1251.4 Hz
422.1 Hz 726.8 Hz 1285.8 Hz
445.7 Hz 767.4 Hz 1321.2 Hz
470.5 Hz 810.2 Hz 1357.6 Hz
496.8 Hz 855.5 Hz 1395.0 Hz
524.6 Hz 903.2 Hz 1433.4 Hz
321.7 Hz 553.9 Hz 1122.5 Hz
Tone Group
TG2
TG1
TG2
TG2
TG4
TG5
TG1
TG5
TG4
TG4
9