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Kompetent für Elektroniksysteme
automatically adjusted. Therefore, if a change is made from ZVEI 1 to CCIR, the tone length has to
be redened as well. See section Tone Length.
Register 046 1. digit
0 = ZVEI 1
1 = CCIR
2 = ZVEI 2
3 = EEA
4 = ZVEI 3
Tone Table
Tone ZVEI 1
CCIR
ZVEI 2
EEA
ZVEI 3
0
2400 Hz
1981 Hz
2400 Hz
1981 Hz
2200 Hz
1
1060 Hz
1124 Hz
1060 Hz
1124 Hz
970
Hz
2
1160 Hz
1197 Hz
1160 Hz
1197 Hz
1060 Hz
3
1270 Hz
1275 Hz
1270 Hz
1275 Hz
1160 Hz
4
1400 Hz
1358 Hz
1400 Hz
1358 Hz
1270 Hz
5
1530 Hz
1446 Hz
1530 Hz
1446 Hz
1400 Hz
6
1670 Hz
1540 Hz
1670 Hz
1540 Hz
1530 Hz
7
1830 Hz
1640 Hz
1830 Hz
1640 Hz
1670 Hz
8
2000 Hz
1747 Hz
2000 Hz
1747 Hz
1830 Hz
9
2200 Hz
1860 Hz
2200 Hz
1860 Hz
2000 Hz
A
2800 Hz
2400 Hz
886
Hz
1055 Hz
886
Hz
B
810
Hz
930
Hz
810
Hz
930
Hz
810
Hz
C
970
Hz
2247 Hz
740
Hz
2247 Hz
740
Hz
D
886
Hz
991
Hz
680
Hz
991
Hz
680
Hz
E
2600 Hz
2110 Hz
970
Hz
2110 Hz
2400 Hz
Transmitter Keying
The transmitter can be keyed by the PTT button on the handset or by the red PTT button on the
keypad. The difference between these PTT buttons is the function of the microphones. The PTT
button on the handset switches on the microphone in the handset, and the PTT button on the keypad
switches on the microphone mounted in the housing of the unit. The transmitter is keyed as long
as the PTT button is pressed, except if the TX time out is exceeded. See also seotion TX Time Out
Timer. In the multi-wire Version the transmitter is controlled by optocoupler 1 and, at the same time,
by an open collector output. In the DC Version it is controlled by optocoupler 2, and in AC version by
a keying tone. During call transmission the transmitter is keyed automatically.
TX Time-Out Timer
The TX time-out timer is programmed in one-second intervals at digits 3 to 5 of register 047
(EEPROM 1). Values of '000' up to '255' are permitted. If the programmed value is '000', the TX
time-out timer is out of operation.
PTT Button Blocking
The PTT button blocking is programmed at the fth digit of register 040 (EEPROM 1) as follows:
0 = PTT button blocking is switched off
1 = PTT button is blocked in case of sensed carrier