Mx960 Alarm Relay Contacts On The Craft Interface; Mx960 Alarm Leds And Alarm Cutoff/Lamp Test Button - Juniper MX960 Hardware Manual

Universal routing platform

Hide thumbs Also See for MX960:

Table of Contents

Replacing the MX960 Craft Interface | 433

MX960 Craft Interface Serial Number Label | 682

MX960 Alarm Relay Contacts on the Craft Interface

The craft interface has two alarm relay contacts for connecting the router to external alarm devices (see

Figure 8 on page

18). Whenever a system condition triggers either the 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 8: Alarm Relay Contacts

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

To deactivate red and yellow alarms, press the button labeled ACO/LT (for "alarm 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 19

describes the alarm LEDs and alarm cutoff button in more detail.

Show Quick Links

Table of Contents