M320 Craft Interface Description; M320 Craft Interface Alarm Leds And Aco/Lt Button; Figure 14: Front Panel Of The Craft Interface - Juniper M320 Hardware Manual

M320 Router Hardware Guide

M320 Craft Interface Description

Figure 14: Front Panel of the Craft Interface

Related
Documentation

M320 Craft Interface Alarm LEDs and ACO/LT Button

28
M320 Craft Interface Power Supply LEDs on page 31
M320 Craft Interface FPC LEDs and Online/Offline Buttons on page 32
The craft interface allows you to view status and troubleshooting information at a glance
and to perform many system control functions. It is hot-insertable and hot-removable.
The craft interface is located on the front of the router above the FPCs. Figure 14 on
page 28 shows the front panel of the M320 craft interface.
M320 Craft Interface Alarm LEDs and ACO/LT Button on page 28
M320 Craft Interface Host Subsystem LEDs on page 30
Replacing an M320 Craft Interface on page 158
Two large alarm LEDs are located at the upper right 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 LED display 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 left 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 LED display continues to report the alarm message
until you clear the condition that caused the alarm.
Table 7 on page 29 describes the alarm LEDs and alarm cutoff button in more detail.
(for "alarm
ACO/LT
Copyright © 2010, Juniper Networks, Inc.