ACR&Artex ELT to Nav Interface User Manual
Page 50
ARTEX PRODUCTS / ACR ELECTRONICS, INC.
DESCRIPTION, OPERATION, INSTALLATION AND MAINTENANCE MANUAL
453-6500
25-69-10
Page 50 of 58
APR 30/12
(b)
Dress and tin the bare wire ends to prevent the strands from fraying during terminal
crimping operations.
(5)
Crimp contact pins 151-2101 onto one end of each wire.
(6)
Insert the contact pins into the appropriate pin locations of the 150-6502 plug (P1). See
"Figure 8. ELT/NAV Interface Wiring Diagram”, on page 46.
(7)
Verify each pin is inserted into the pin location on the P1 plug that corresponds to the
appropriate bit address. See "Figure 8. ELT/NAV Interface Wiring Diagram”, on page 46.
(8)
Connect the other end of each wire to pins P1-25 and P1-26, which are grounded through the
chassis. If the wires are spliced, fabricate the splices in a manner acceptable to the aircraft
manufacturer or as described in AC 43.13-1, § 13.
NOTE: Split the wires between P1-25 and P1-26, such that the number of wires going to
each pin are divided evenly.
(9)
Insert spare 151-2100 contact sockets and 151-2102 sealing plugs into unused plug positions.
(10) Install the 183-6502 strain relief on the plug and tighten the wire clamp. See "Figure 10. ELT/
NAV Interface Wiring Installation”, on page 48.
(11) Connect the P1 plug to the ELT/NAV Interface.
(12) Test the installation in accordance with SUBTASK 25-69-10-750-002, on page 36.
SUBTASK 25-69-10-450-003
D. 24-Bit Address Reprogramming – Switch Block Method
(1)
Locate and install the 24-bit switch block less than 3 feet (0.9 m) from the ELT/NAV Interface
in accordance with the manufacturer’s written instructions.
(2)
Prepare twenty-six (26) wires as follows:
(a)
Strip approximately 0.19 in. (5 mm) of insulation from the P1 plug end of each wire.
(b)
Dress and tin the bare wire ends to prevent the strands from fraying during terminal
crimping operations.
(3)
Prepare the switch block end of each wire in accordance with the switch block manufacturer’s
written instructions.
(4)
Crimp contact pins 151-2101 onto the plug end of each wire.
(5)
Insert the contact pins into the 150-6502 plug (P1). See "Figure 8. ELT/NAV Interface Wiring
Diagram”, on page 46.
(6)
Feed the wires through strain relief 183-6502. See "Figure 10. ELT/NAV Interface Wiring
Installation”, on page 48.
(7)
Install the strain relief on the P1 plug and tighten the wire clamp.
(8)
Identify the wires such that the pin locations and switch block terminations correspond to the
24-bit addresses shown in "Figure 8. ELT/NAV Interface Wiring Diagram”, on page 46.