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Face-side connections
Charger jack
mc-20
The
HoTT transmitter's charger jack becomes
accessible after turning the left face-side cover away.
The transmitter's rechargeable LiIo battery can be
charged by way of the charger socket located behind
a cover on the left, front side of the transmitter – as
viewed from the front – with the included plug-in
charger (order no. 32032.4).
Maximum permissible charging current with Graupner
automatic chargers: 1.5 A.
Never use plug-in chargers from other manufacturers
or chargers intended for other battery types. Charger
output voltage which is too high or possibly even
different plug polarity, see further below, can cause
immense damage.
More information about charging the transmitter's
battery can be found on page 16. Observe the
safety notices on pages 7 ... 9 when handling lithium
batteries.
22
General operating notices - Face-side connections
DSC / Direct Servo Control
The acronym "DSC" is a carryover which stands for
the original "Direct Servo Control" function. However,
in HoTT systems the "direct servo control" function
is no longer available via a diagnose cable due to
technical reasons.
Once the left face-side cover has been moved
mc-20
away, the
HoTT transmitter's DSC socket is
accessible:
The standard two-pole DSC jack in the
transmitter is used as the teacher or pupil jack as well
as an interface to fl ight simulators.
To ensure a proper DSC connection, please
observe:
1.
Make any necessary menu changes.
Refer to the section beginning on page 210 to
mc-20
adapt the
HoTT transmitter to a teacher/
pupil system.
2.
When operating a fl ight simulator or when
mc-20
operating the
HoTT transmitter as a pupil
transmitter, ALWAYS leave the transmitter's ON/
OFF switch in the "OFF" position as only in this
position does the transmitter's RF module remain
inactive after the DSC cable is inserted. This also
reduces the transmitter's power consumption
somewhat.
Battery
Only the "
" LED should remain constantly
illuminated and the transmitter's basic display
should show the character string "DSC" below the
operating time clock. At this time, the display of
telemetry data and symbols will be suppressed.
#01
0:00h
4.1V
0
The transmitter's upper display will show the
message "CANNOT RECEIVE DATA" during this
time.
Thus the transmitter is ready for operation.
In contrast, the
mode is to be switched on prior to plugging in the
respective cable.
3.
Connect the other end of the cable to the desired
mc-20
HoTT
unit in compliance with the given operating
instructions for that unit.
Important:
Pay attention that all plugs are inserted
securely into their respective sockets and
use only the prescribed 2-pole TRS connector
plugs on the DSC-side.
4.
In the line "DSC Output" in the »
model«, page 81 or 88 or the line "Pre-set DSC
Output" in the »General basic settings«, page
258, – depending on the number of functions
transferred – one of the following modes can be
set: PPM10, PPM16, PPM18 or PPM24. Default
setting: PPM10.
Notice about fl ight simulators:
Because of the myriad of fl ight simulators available
on the market, it may be necessary to have the
contact layout of the audio plug or DSC module
appropriately modifi ed by Graupner Service.
0:00.0
Stop watch
0:00.0
Flight tim
0:00h
K78
DSC
0
0
0
mc-20
HoTT transmitter in teacher
Basic settings,
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