Juniper Networks M160 manual Alarm LEDs and Alarm Cutoff/Lamp Test Button, Craft Interface

M160 Internet Router Hardware Guide

Figure 11: Craft Interface

Yellow alarm

Red alarm

Alarm cutoff

Navigation

LCD

Navigation

Host module

LED

LED

button

buttons

buttons

LEDs

OFFLINE

ONLINE

MASTER

MENU

HOST0

ACO/LT

ENTER

HOST1

OFFLINE

ONLINE

MASTER

FAIL

OK

FAIL

OK

FAIL

OK

FAIL

OK

FAIL

OK

FAIL

OK

FAIL

OK

FAIL

OK

FPC 0

FPC 1

FPC 2

FPC 3

FPC 4

FPC 5

FPC 6

FPC 7

1231

FPC LEDs and offline buttons (for FPC 0-7)

NOTE: The LEDs for some router components are located on the component faceplate, rather than on the craft interface. For information about those LEDs, see the following sections:

“PCG Components” on page 19

“SFM Components” on page 20

“MCS Components” on page 26

Power System on page 35

For information about the elements on the craft interface, see the following sections:

Alarm LEDs and Alarm Cutoff/Lamp Test Button on page 28

LCD and Navigation Buttons on page 29

Host Module LEDs on page 31

FPC LEDs and Offline Button on page 31

Alarm LEDs and Alarm Cutoff/Lamp Test Button

Two large alarm LEDs are located at the upper left of the craft interface (see Figure 11). 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), as described in “Alarm

28 Craft Interface