ACR&Artex ELT to Nav Interface - Manual (Page 56)

ARTEX PRODUCTS / ACR ELECTRONICS, INC.
DESCRIPTION, OPERATION, INSTALLATION AND MAINTENANCE MANUAL
453-6500
25-69-10
Page 56 of 58
APR 30/12
(3) Assemblies, subassemblies, and detail parts subject to modification, deletion, addition, or
replacement by an issued service bulletin, are annotated to indicate both pre- and post-
service bulletin configurations. The term (PRE SB XXXX) in the “Nomenclature” column
designates the original configuration, and the term (POST SB XXXX) identifies assemblies and
parts after the modification has been completed.
(4) The terms defined below are used when applicable to indicate the interchangeability of parts.
SUBTASK 25-69-10-990-004
D. UPA (Units Per Assembly) Column
(1) The quantity shown in this column represents the units required for one next higher assembly
or, when referring to attaching parts, the quantity to attach one such item.
(2) The abbreviation RF (reference) indicates the end item assembly is listed for reference
purposes.
TERM ABBREVIATION DEFINITION
Alternate ALT
The listed part is alternate to, and interchangeable
with, other parts within the same item number
variant group or other item numbers if
designated.
Superceded By SUPSD BY
The part is replaced by and is not interchangeable
with the item number designated in the notation.
Supersedes SUPSDS
The part replaces and is not interchangeable with
the item number designated in the notation.
Replaced By REPLD BY
The part is replaced by and is interchangeable
with the item number designated in the notation.
Replaces REPLS
The part replaces and is interchangeable with the
item number designated in the notation.