190-01115-01 G3X/G3X Touch Installation Manual - GTR 20 Installation
Rev. AC Page 21-2
The use of ground-based cellular telephones while aircraft are airborne is prohibited by
FCC rules. Due to potential interference with onboard systems, the use of ground-based
cell phones while the aircraft is on the ground is subject to FAA regulation 14 CFR §91.21.
FCC regulation 47 CFR §22.925 prohibits airborne operation of ground-based cellular
telephones installed in or carried aboard aircraft. Ground-based cellular telephones must
not be operated while aircraft are off the ground. When any aircraft leaves the ground, all
ground-based cellular telephones on board that aircraft must be turned off. Ground-based
cell phones that are on, even in a monitoring state, can disrupt GPS/SBAS performance.
21.1.1 Status LED
The GTR 20 has an LED located in the hole to the right of the D-sub connector (J2001) that indicates its
current status. See Section 35.1.1
for details.
21.2 Equipment Available
21.2.1 Unit Configurations
21.2.2 Additional Equipment Required
The connector kit in Table 21-3 is required to install the unit, it is not provided with the GTR 20 unit only
(010-01076-00).
Table 21-2 GTR 20 Part Numbers
Model
Assembly Part
Number
Unit Only Part
Number
GTR 20 unit only 010-01076-00 011-03007-00
GTR 20 Standard (includes
items in Table 21-3)*
010-01076-01 011-03007-00
*Includes 011-03241-00 connector kit
Table 21-3 Contents of GTR 20 Connector Kit (011-03241-00)
Item Garmin P/N Quantity
Backshell w/Hdw, Jackscrew,37 Pin 011-01855-03 1
Screw, 8-32 x .312, PHP, SS/P 211-60209-09 5
Washer, Split Lock, Size 8 212-00018-04 5
Washer, Flat, Non-Std, SS, ID .195, OD .354 212-20065-00 5
Conn, Rcpt, D-Sub, Crimp Socket, Commercial, 37 CKT 330-00625-37 1
Contact, Socket, Military Crimp, Size 20 336-00022-02 37
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