Mx240 Alarm Relay Contacts On The Craft Interface; Mx240 Alarm Leds And Alarm Cutoff/Lamp Test Button; Figure 7: Alarm Relay Contacts - Juniper MX240 Hardware Manual

MX240 Alarm Relay Contacts on the Craft Interface

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MX240 Alarm LEDs and Alarm Cutoff/Lamp Test Button

Copyright © 2017, Juniper Networks, Inc.
MX240 Component LEDs on the Craft Interface on page 14
Replacing the MX240 Craft Interface on page 265
The craft interface has two alarm relay contacts for connecting the router to external
alarm devices (see Figure 7 on page
red or yellow alarm on the craft interface, the alarm relay contacts are also activated.
The alarm relay contacts are located on the upper right of the craft interface.

Figure 7: Alarm Relay Contacts

MX240 Craft Interface Overview on page 12
MX240 Alarm LEDs and Alarm Cutoff/Lamp Test Button on page 13
MX240 Component LEDs on the Craft Interface on page 14
Connecting the MX240 Router to Management and Alarm Devices on page 211
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 craft interface.
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 craft interface.
Table 6 on page 14 describes the alarm LEDs and alarm cutoff button in more detail.
Chapter 3: Chassis Components and Descriptions
13). Whenever a system condition triggers either the
(for "alarm
ACO/LT
13