T1600 Craft Interface Lcd And Navigation Buttons - Juniper T1600 Hardware Manual

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T1600 Craft Interface LCD and Navigation Buttons

Copyright © 2010, Juniper Networks, Inc.
Table 15: Alarm LEDs and Alarm Cutoff/Lamp Test Button
Shape Color
Red
Yellow
—
T1600 Craft Interface Description on page 51
T1600 Alarm Relay Contacts on page 58
T1600 Craft Interface LCD and Navigation Buttons on page 53
A four-line LCD is located in the craft interface, along with six navigation buttons. The
LCD operates in two modes:
LED idle mode
LED alarm mode
During normal operation, the LCD operates in idle mode and reports current status
information, as shown in Figure 33 on page 53.
Figure 33: LCD in Idle Mode
The lines in the display report the following information:
First line—Router name.
Second line—Length of time the router has been running, reported in the following
form:
Up days + hours:minutes
Chapter 3: T1600 Router Hardware Components Overview
State Description
On steadily Critical alarm LED—Indicates a critical condition that
can cause the router to stop functioning. Possible
causes include component removal, failure, or
overheating.
On steadily Warning alarm LED—Indicates a serious but nonfatal
error condition, such as a maintenance alert or a
significant increase in component temperature.
— Alarm cutoff/lamp test button—Deactivates red and
yellow alarms. Causes all LEDs on the craft interface
to light (for testing purposes), when pressed and
held.
53