T1600 Craft Interface Alarm Leds And Aco/Lt Button - Juniper T1600 Hardware Manual

T1600 Core Router Hardware Guide
Figure 32: Front Panel of the Craft Interface
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T1600 Craft Interface Alarm LEDs and ACO/LT Button

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button for each FPC that you use to take the FPC offline and bring
ONLINE/OFFLINE
it online. The button is located next to the FPC LEDs on the bottom of the craft interface.
Host Subsystem Master
SIB and LEDs
OK FAIL
FPC and LEDs for the fans
OK FAIL
T1600 Craft Interface LCD and Navigation Buttons on page 53
T1600 Craft Interface Alarm LEDs and ACO/LT Button on page 52
T1600 Craft Interface Host Subsystem LEDs on page 54
T1600 Craft Interface SIB LEDs on page 55
T1600 Craft Interface FPC LEDs on page 55
Replacing the T1600 Craft Interface on page 211
Two large alarm LEDs are located at the upper left of the craft interface . The circular
red LED lights to indicate a critical condition that can result in a system shutdown. The
triangular yellow LED lights to indicate a less severe condition that requires monitoring
or maintenance. Both LEDs can be lit simultaneously.
A condition that causes an LED to light also activates the corresponding alarm relay
contact on the connector interface panel (CIP). The LCD on the craft interface reports
the cause of the alarm.
To deactivate red and yellow alarms, press the button labeled
cutoff/lamp test"), which is located to the right of the alarm LEDs. Deactivating an alarm
turns off both LEDs and deactivates the device attached to the corresponding alarm
relay contact on the CIP. However, the LCD continues to report the alarm message until
you clear the condition that caused the alarm.
Table 15 on page 53 describes the alarm LEDs and alarm cutoff button in more detail.
, OK , and FAIL LEDs
(for "alarm
ACO/LT
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