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3CC08991ATAA TQ BJA 01
Issue 01 -- March 2004
2.7
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IDU controls, indications and connectors
The indoor units have a “Connector” panel and an “Operation” panel (Figure 18). The operation panel carries
controls and indicators which duplicate those on the “Connector” side. The tables in the sections that follow
describe these components.
In some configurations, some of the items described below may be omitted.
2.7.1 -- Classic main IDU
Connector panel of the main IDU
Figure 18 - Controls, indicators and connectors on the main IDU
Ground terminal
Front panel of the main IDU
The connector panel of the main IDU is fitted with:
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indicators showing the operational status of the equipment at a glance,
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connectors.
The components are listed in the table below.
ITEM
TYPE
FUNCTION
Items shown on a shaded background appear on both panels.
Red LED
URG: Urgent alarm present.
Red LED
NURG: Non-urgent alarm present.
Yellow LED
ATT: Alarm attended, acknowledged by the operator.
Yellow LED
BZ: Busy (telephone ESC busy).
Green LED
IDU: No IDU alarm
or IDU configuration is valid.
Green LED
ODU: No ODU alarm
or ODU configuration is valid.
ON/OFF
Two-position
switch
For powering the unit up/down.
The green LED beneath this switch indicates when the unit is pow-
ered up.
RST
Pushbutton
Resets the unit’s software.
IDU-ACO/ODU
Momentary ac-
tion two-position
switch
S
On startup: selects the IDU or ODU configuration if the
configuration data is lost
S
In operation: ACknOwledge (acknowledgement of an urgent
alarm)/test the LEDs.
Summary of Contents for 9400 UX
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