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SECTION I INTRODUCTION
SM 7063 07/97 1-6
1.7 CDU MAJOR COMPONENTS
The photo and illustration below shows the CDU Model 6696 external components and typical front
panel layout.
I
D = 85323
Union Switch & Signal Inc.
SET
MENU
UP
MENU
DOWN
ALARM
MARKER
ON
LOW
BATTERY
F TO R
FAILURE
R TO F
FAILURE
MOVING
PRESSURE
E
M
E
R
G
E
N
C
Y
CANCEL
COMM
ARM
STOPPED
Figure 1-1. - Model 6696 CDU Features & Front Panel Layout
1.7.1 CDU Unit Housing
The CDU Model 6696 uses the same exterior aluminum alloy housing used on previous versions of
DIGITAIR
Cab Units. This helps ensure the Model 6696 will fit into, and be compatible with, existing
locomotive installations. Two mounting configurations are available; a Standard Mounting Tray style
mount, and an AAR Clean Cab Enclosure style mount.
The CDU is designed to be lightweight (9 pounds) and incorporates a fold-out carrying handle for
transporting the unit to the locomotive or between locomotives.