TT31 Transponder Installation Manual
8 May 2017
00455-00
Issue AQ
______________________
Trig Avionics Limited
Page 13
Dimension
Cut size
(mm)
Cut size
(inches)
A
12.7
0.5
B
6.4
0.25
C
3.2
0.125
•
Insert the cable into the connector – the inner conductor should align with the centre contact,
the inner shield should be inside the body of the connector and the outer shield should be
outside the body.
•
Solder the centre conductor to the centre contact, aligning the conductor with the slot in the
contact. Avoid excess solder heat on the centre BNC conductor pin.
•
Solder the inner shield to the inside of the connector body by applying a soldering iron to the
body and running solder into the gap. Try to avoid excess solder heat on the connector body.
•
Solder the outer shield to the outside of the connector body. Avoid excess solder heat on the
connector body.
•
Slide heat shrink tubing forward (flush to connector) and heat to shrink the tubing.
•
Complete the assembly by installing the bushing over the centre contact, and fitting the cap.
Solder the cap in place in at least two places.