ACR&Artex ELT to Nav Interface Boeing - Manual (Page 23)

25-69-11
Page 23 of 58
JUL 28/11
ACR ELECTRONICS, INC / ARTEX PRODUCTS
ABBREVIATED COMPONENT MAINTENANCE MANUAL
-B (453-6501)
DESCRIPTION AND OPERATION
TASK 25-69-11-870-801
1. Description
SUBTASK 25-69-11-870-001
A. Overview
(1) The ELT/NAV Interface -B is integrated into the ELT system. See "Figure 1. ELT/NAV Interface
-B System Integration".
Figure 1. ELT/NAV Interface -B System Integration
(2) The ELT/NAV Interface -B is designed to work with “ELT with 24-bit Address” and “ELT with
Serial Number” location protocols. In both cases, the ELT/NAV Interface -B provides position
coordinates (latitude and longitude) to the ELT.
(a) For aircraft using an “ELT with 24-bit Address” location protocol, the ELT/NAV Interface
-B also provides the means to reprogram an ELT automatically in the event an ELT
programmed with a different 24-bit address aircraft ID has been placed in the aircraft.
(b) For aircraft using an “ELT with Serial Number” location protocol, the ELT/NAV Interface -
B reprogramming receptacle (P1) is capped and the unit only provides position data to
the ELT.
ARINC 429/RS-232 INPUT FROM NAVIGATION SYSTEM
AIRCRAFT POWER
OPTIONAL 24-BIT ADDRESS WIRING
ELT/NAV
INTERFACE
PROTECTIVE TOP
COVER (REF.)
ELT (REF.)
MOUNTING
TRAY (REF.)
TO
ANTENNA (REF.)
NOTE: DUAL OUTPUT FOR
ANTENNA SHOWN, SINGLE
INPUT SIMILAR
ON
ARM
EL
T
REMOTE CONTROL
PANEL (REF.)