TABLE OF CONTENTS
OPERATION Page
1. Controls and indicators 3-1
2. Function of controls and indicators 3-1
3. Operating instructions 3-2
A. Switching on the unit (pre-flight check) 3-2
B. Start-up 3-3
C. CODE display 3-3
D. Aircraft identification / Flight number 3-3
E. Flight level 3-4
F. Selftests of the unit (BITs) 3-4
G. Selection mode 3-5
G.1 Aircraft Identification (AI or FN) 3-6
G.2 VFR code setting 3-7
H. Flight operation in Mode A/C/S (reply and altitude code) 3-8
I. VFR code activation 3-9
J. Internal and external Ident 3-9
K. Special condings for air emergencies 3-9
L. Configuration mode 3-10
Fig. 3-1 Front view of BXP6401-X-(XX) 3-1
Fig. 3-2 Start-up indication 3-3
Fig. 3-3 AID indication 3-3
Fig. 3-4 FN indication 3-3
Fig. 3-5 Flight level indication 3-4
Fig. 3-6 Error indication and Warning indication 3-5
INSTALLATION AND OPERATION BXP6401-X-(XX)
Page III-I
34-50-08 September 2011