mbos8a_eng (13.03.2014)
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Kompetent für Elektroniksysteme
mbos8a_eng (13.03.2014)
- 7 -
Kompetent für Elektroniksysteme
c)
By connecting a compatible handset/headset and pressing the corresponding PTT button
PTT2 (e.g. a foot switch). By doing this the transmitter of the selected radio channel is also
turned on (PTT LED lights up) and you can talk with the caller through the microphone of
the handset/headset. Depending on the configuration you can hear the caller constantly
on the handset or only after releasing the PTT button. The volume of the corresponding
channel is adjustable.
If another controlling device is already transmitting on a radio channel the Major BOS
4a can be programmed so that the corresponding TX LED blinks and optionally the PTT
button is blocked. After ending the call the activated radio channel can be deactivated by
pressing the corresponding selection button again.
The microphone level of the handset/headset can be adjusted with the potentiometer
P10
and the level of its loudspeaker with the potentiometer
P12
.
Loudspeaker
The
built-in
loudspeaker is automatically turned off during transmission.
It is also possible to configurate the
EEPROM-Register 02A in bit 1
so that the
loudspeaker is also turned off automatically when the handset is lifted.
register 02A
Loudspeaker switching status when handset is lifted
bit 1: 0 = Loudspeaker ON
1 = Loudspeaker OFF
The receiver AF (on the loudspeaker) of individual radio channels can either be muted
manually by pressing the loudspeaker buttons or automatically when the correspending
busy line is activated (see section
Parallel circuit of several Major BOS 8a
).
In
EEPROM register 025
the loudspeaker switching statuses of the radio channels 1..8
(
bit 0..7
) can be preselected after turning on the radio installation.
register 025
Loudspeaker switching status after turning on
bit 0:
Channel 1
OFF/ON (0/1)
bit 1:
Channel 2
OFF/ON (0/1)
bit 2:
Channel 3
OFF/ON (0/1)
bit 3:
Channel 4
OFF/ON (0/1)
bit 4:
Channel 5
OFF/ON (0/1)
bit 5:
Channel 6
OFF/ON (0/1)
bit 6:
Channel 7
OFF/ON (0/1)
bit 7:
Channel 8
OFF/ON (0/1)
In addition it is possible to make a configuration in the
EEPROM register 028
so that the
loudspeaker switching statuses are automatically saved in EEPROM register 025 when
the Major is turned off.
register 028
Saving the loudspeaker switching statuses
No/Yes (00/01)
Summary of Contents for Major BOS 8a
Page 1: ...Major BOS 8a...
