FunkTronic Major BOS 1a, Руководство пользователя

Страница: 6 / 11

- 6 -
mbos1a (06.09.2012)
Kompetent für Elektroniksysteme
mbos1a(06.09.2012)
- 7 -
Kompetent für Elektroniksysteme
Transmitter Control
The transmitter is switched on with one of the PTT or Call buttons as long as it is pressed. The PTT
output can switch to GND as well as to 12 V. Via the open collector output several control sets can
be connected in parallel.
Connecting several Control Sets in Parallel
As the NF output is only active during transmission and the NF input can be switched to high-resistance,
the connection of several control sets in parallel is possible. Therefor, RJ45 patch sockets can be
used (bus wiring or star wiring).
By decoding the PTT output (in this case used as an input) it is possible to mute the Major BOS 1a
externally in order to avoid feedback between control sets placed adjacently to each other.
Headset
An external headset with a suitable foot switch can be connected to one of the 6-pin Western
sockets.
The sockets' pinout differs only in the polarity of the electret microphone's bias voltage in order to
provide the two frequently used pin assignments for headsets with 4/6-pin Western plugs.
Tape Connection
For voice recording a tape recorder can be connected to socket ST4. The output level can be set
internally.
External Loudspeaker
An external loudspeaker can be connected to ST4. The volume is set with the main volume control
knob.