User's Manual

FLITELINE AVIONICS SYSTEM
PILOT’S GUIDE
Publication No. 150-047012 Page 53
Rev. D Dec 2005
FliteLine ATC Transponder System (FliteXPDR)
General Description CTR-352
The CTR-352 Control Display Unit provides a simultaneous control of up to two Mode A/C transponders. The
CTR-352 Control display provides tuning of the ATC 4096 Code with a special VFR Quicktune feature to rapidly
change the ATC code to 1200. The IDENT Annunciator (ID) appears in the display when the Transponder is
replying to interrogation from the ATC ground station. When the CTR-352 Control Display Unit is turned on, a
diagnosis of all critical circuits begins, and continues until the System is turned off. If a fault is detected at any
time, a failure annunciation appears in the display.
The CTR-352 Control Display Unit has a nonvolatile memory which allows it to remember the code displayed,
indefinitely, even when power is removed. This feature prevents momentary power interrupts from affecting the
system, and allows the last code used to appear immediately when the System is turned on.
The CVC-352 Communication Control Display Unit is designed to interface with Chelton FliteLine ATC
Transponder Radios (CTR-351), and Collins Transponder Radios with the ARINC 410 (2x5) Interfaces.