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TRT800 / P/N 800ATC-(200)-(200)
Operation and Installation
17
Document-No: 03.2102.010.71e / Revision: 2.02
3.6 Equipment
Connections
3.6.1 Electrical
Connections
One 15 pin D-SUB miniature connector includes all electrical
connections, except for the antenna. Use only an AC Address Adaptor
TRT800EM or TRT800EMSS as they are part of the certification and
include a memory with the stored ICAO 24bit Aircraft Address.
3.6.1.1 Mutual Suppression
Other equipment on board (e. g. DME) may transmit in the same
frequency band as the transponder.
If such a device is installed a suppression wiring shall be installed in
order to protect the receiving parts of the different devices from in-band
transmissions.
Mutual suppression is a synchronous pulse that is sent to the other
equipment to suppress transmission of a competing transmitter for the
duration of the pulse train transmission. The transponder transmission
may be suppressed by an external source and vice versa.
To activate mutual suppression connect the SUPP_I/O signal to the
according signals of the other equipment
3.6.1.2 Ground Switch
If a Ground-Switch is connected (and activated in the Setup), the
transponder is enabled to distinguish between On-Ground and In-Flight.
Condition. In On-Ground Condition the transponder automatically enters
the Standby mode.
In order to activate this function the signal „FLY-GND“ must be
connected to a switch, which combines the signal with „GND“ in case the
gear is weighted, or remains open in the other case.
This option must additionally be activated in the Setup. For details on
configuration please refer to section 4.2.1.
The (+UB)-wire has to protected by circuit breaker (2 Amp.)!