Description And Operation; Description; Overview; Figure 1. Elt/Nav Interface System Integration - COBHAM ELT/NAV INTERFACE Abbreviated Component Maintenance Manual

TASK 25-69-10-870-801

1. Description

SUBTASK 25-69-10-870-001
A.

Overview

(1) The ELT/NAV Interface is integrated into the ELT system. See "Figure 1. ELT/NAV Interface
System Integration".
REMOTE SWITCH (REF.)
ARINC 429/RS-232 INPUT FROM NAVIGATION SYSTEM
AIRCRAFT POWER
(2) The ELT/NAV Interface is designed to work with "ELT with 24-bit Address" and "ELT with
Serial Number" location protocols. In both cases, the ELT/NAV Interface 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
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
reprogramming receptacle (P1) is capped and the unit only provides position data to the
ELT.
COBHAM AVIONICS WULFSBERG ELECTRONICS
ABBREVIATED COMPONENT MAINTENANCE MANUAL
453-6500

DESCRIPTION AND OPERATION

ELT/NAV
INTERFACE
MOUNTING
TRAY (REF.)
OPTIONAL 24-BIT ADDRESS WIRING

Figure 1. ELT/NAV Interface System Integration

PROTECTIVE TOP
COVER (REF.)
ELT (REF.)
25-69-10
TO
ANTENNA (REF.)
NOTE: DUAL OUTPUT FOR
ANTENNA SHOWN, SINGLE
INPUT SIMILAR
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APR 06/10