2-10
SECTION 3
INSTALLATION INSTRUCTIONS
3.1
GENERAL
This section contains information and instructions for the correct installation of the TFM-556,
VHF/FM Transceiver. Make certain that the correct frequencies are preprogrammed in accordance
with the equipment user's valid FCC operator's license, prior to installation.
3.2
EQUIPMENT PACKING LOG
Unpack the equipment and check for any damage that may have occurred during transit. Save
the original shipping container for returns due to damage or warranty claims. Check that each
item on the packing slip has been shipped in the container. Verify that the equipment display
and backlighting configuration are the same as those ordered.
3.3
TRANSCEIVER
INSTALLATION
The TFM-556 transceiver is designed to be Dzus mounted and should be installed in conjunction with
an IN-550 installation kit. See Figure 3-1 for an outline drawing of the unit with dimensions to
facilitate the installation.
3.4
INSTALLATION KIT - CONTENTS
The IN-550 installation kit consists of:
1.
One 15 pin Cannon D mating connector (female) complete with crimp pins and hood.
2.
One 9 pin Cannon D mating connector (male) complete with crimp pins and hood.
3.
Three BNC antenna mating RF connectors (male).
3.5
ANTENNA
INSTALLATION
Antenna, P/N’s ATM-150, ATM-403 and ATM-30 may be obtained from Technisonic Industries
Limited or suitable equivalent 0dB gain antenna may be utilized with the TFM-556 transceiver.
The antennae should be mounted on the bottom of the aircraft whenever possible and must
be located at least 20 cm (8inches) from any occupant in the airframe. Consult with
instructions provided with the antennas. Connect RF cables from antennas to the back of the
TFM-556 unit by utilizing the BNC mating connector provided in the installation kit. The VHF
Low band (top) and UHF (middle) BNC connectors are located on the rear, above the 15-pin
D connector and the VHF high band BNC connector is below the 9-pin D. If an external antenna
tuner (ATU) is to be used, the ATC-550 (p/n 991102-1) will have to be utilized to control it.
The ATC-550 is an external box to the TFM-556.
3.6
INSTALLATION - PIN LOCATIONS AND CONNECTIONS
The pin numbers and locations for the 15 pin and 9 pin Cannon D located on the rear of the
TFM-556 transceiver are shown below. Pin connections are in provided in TABLE 3-1.
Transceiver mounted view of 15 pin female and 9 pin male connector
