MicroAir Avionics T2000SFL, Руководство по установке

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Microair Avionics T2000SFL Transponder Installation Manual
6.2 Audio Beep
The T2000SFL beep function when set to ON, will emit a beep tone on this line. Audio beep should be taken to
the Auxiliary input of the aircraft’s radio or Audio Panel.
When connecting the beep function to the Microair M760 transceiver, simply join the beep line directly to any
headphone line (orange wire in factory supplied harness).
6.3 Suppression IN
The suppression IN line is used by the primary transponder in the aircraft to “suppress” the T2000SFL, to
prevent dual transmissions, and interference. When the primary transponder transmits, it will send a positive
voltage to the suppression IN, which prevents the T2000SFL from transmitting.
The T2000SFL requires a minimum signal voltage of 5V. The signal voltage may not exceed 20V.
6.4 Suppression OUT
Where the T2000SFL is the primary transponder, the suppression OUT line is used to prevent other transponder
and DME equipment installed in the aircraft, from interfering. When the T2000SFL transmits, it raises a positive
voltage on the suppression OUT line, which prevents the other equipment from transmitting.
The signal voltage is 5V.
6.5 External Standby
The external standby can be wired to a remote switch. When the line is taken to ground the T2000SFL will
return to standby mode, and stay there regardless of the position of the Selectmode knob. The REM STBY
function can reverse this operation to make the T2000SFL go to standby, when the external standby is not
grounded.
This line is typically taken to an air-switch, which will remain grounded while the airspeed is typically below 30
knots. Hence the transponder will not come out of standby mode until the aircraft has taken off. If the external
Standby Switch is to be taken to an air-switch, Microair recommends that an ON/OFF switch be put in series to
disable the air-switch operation if required.
Where the external standby line is to be operated by an air-switch, Microair recommends that a placard be fitted
on the panel.
AIR-SWITCH FITTED TO EXTERNAL STANDBY
TRANSPONDER WILL REMAIN IN STANDBY
WHILE AIRCRAFT IS ON THE GROUND
(example)
This placard is to advise the pilot that the transponder will remain in standby operation while on the ground. It
may be appropriate to fit an enable/disable switch on the external standby line, between the transponder and the
air-switch, to bypass this mode of operation.
6.6 External Ident
This line is typically wired to a momentary-ON switch, in a position more easily reached by the pilot / co-pilot
(e.g. control column). When this line is taken to ground
briefly , the T2000SFL will go through its Ident
function.
IMPORTANT NOTE
If any of the above wiring functions are not required, they can simply be
left not wired.
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