MAN_DZ7_001 Rev 1.1 Flightcell® DZMx Plus Installation Manual
Page 11 of 61
Effective Date: 28 Jun 2021
Mechanical drawings showing dimensions and mounting details are available on the
Flightcell website
CAD solid model files are available on request from Flightcell International. Contact
[email protected] for more information.
DZMx Plus Wiring Guide
Wiring diagrams for the Flightcell DZMx Plus Transceiver and Control Head are available
on the Flightcell website
Necessary Installations
The following are essential parts of the DZMx Plus installation:
»
Power Supply
»
DZMx Antennas
»
Power Supply
The DZMx Plus unit and other components require aircraft DC power. Operating range is 12-
32VDC. It is recommended that the DZMx Plus be connected to the emergency (primary)
power bus on the aircraft. This is to ensure successful operation of tracking (including
engine start/stop data) and emergency calls.
When operating on a nominal 28V supply circuit breakers or fuses of the following rating
should be used between DZMx Plus system components and the power supply:
»
A 4-amp circuit breaker/fuse is recommended to protect the DZMx Plus system
»
A 1-amp circuit breaker/fuse is recommended to protect an external modem (Iridium
or cellular) module, if installed
»
A 1-amp circuit breaker/fuse is recommended to protect a Flightcell Iridium phone
cradle, if installed
»
A 1-amp circuit breaker/fuse is recommended to protect the DZMx Plus Control
Head
If combining two or more circuits on a single circuit breaker a 4-amp circuit breaker/fuse is
recommended.
Fabricating Wiring Harnesses
All wiring should be carried out with aviation specification fireproof cable.
Screened cable should be used where indicated in the wiring diagrams. Where cable screen
connections are not explicitly shown, they should be left unterminated.
The following minimum wiring specification is recommended:
»
Power supply - 22 AWG stranded (0.325mm
2
)
»
Other cabling - 24 AWG stranded (0.205mm
2
).
It is recommended that enough slack be left in the main cable to enable the DZMx Plus
to be partially removed from the aircraft panel for service or to exchange the Iridium and/or
cellular SIM card.