Quick Reference
025-9368H
233
FIVE-TONE SIGNALING
The five-tone formats are easier to use than the Two-tone format. The format for a five-tone call
code is:
P12345X:
P = Preamble (optional)
1-5 = Capcode (digits 0-9,G,B,C,D,R,F)
X = Second address (1=No address, 2=2nd address)
The Model 748 supports 4 five-tone formats, EIA, CCIR, PZVEI and EEA. The tones and timing are
different for each; refer to the “Five-Tone Group/Timings” table for a list of the individual tones and
timings. Programming the call code is identical however.
Five-Tone Groups/Timing
This table indicates the five-tone frequency and tone timing values for the three available tone plans.
Note that the “C” tone is used for the “X” tone or 2nd address when specified.
Zetron Group
number
0
1
2
3
Tone series
EIA
CCIR
PZVEI
EEA
Tone number
Tone frequencies are in Hz.
0
600
1981
2400
1981
1
741
1124
1060
1124
2
882
1197
1160
1197
3
1023
1275
1270
1275
4
1164
1358
1400
1358
5
1305
1446
1530
1446
6
1446
1540
1670
1540
7
1587
1640
1830
1640
8
1728
1747
2000
1747
9
1869
1860
2200
1860
Group “G” tone
2151
2400
970
1055
B
2433
930
810
930
2nd Addr “C” tone
2010
2247
2800
2400
D
2292
991
885
991
Repeat “R” tone
459
2110
2600
2110
F
1091
1055
680
2247
TIMING
Tone timings are in milliseconds
Preamble
690
690
690
690
Gap
65
65
65
65
Tone
33
100
70
40
X Tone
65
100
70
40
Содержание 748
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