Figure 18: Extended Craft Interface; Table 15: Craft Interface Leds, Buttons, And Connectors - Juniper MX2020 Hardware Manual

MX2020 3D Universal Edge Router Hardware Guide

Table 15: Craft Interface LEDs, Buttons, and Connectors

Function No.
1
2
3
4
5
6
7
8
9
38

Figure 18: Extended Craft Interface

0
Label
PSM
FANTRAYS
( ,
RE0 MASTER ONLINE
)
OFFLINE
( ,
RE1 MASTER ONLINE
OFFLINE )
MINOR ALARM
MAJOR ALARM
ACO/LT
M/S CHASSIS NUM
MINOR ALARM–[NC C NO]
MAJOR ALARM–[NC C NO]
through
LC 10 LC 19
Description
Status LEDs for PSMs
Status LEDs for fan trays
, and Two sets of status LEDs per host subsystem. There
are three LEDs per Routing Engine.
, and
Minor Alarm LED for monitoring or maintaining the
MX2020
Major Alarm LED for critical conditions, that can
result in system shutdown
Alarm Cutoff/ Lamp Test Button. Turns off both
minor and major alarms and deactivates the device
attached to the corresponding alarm relay contact
on the craft interface
Chassis ID and Standalone Dial. These two dials are
used. One dial is used to indicate the chassis number
for multi-chassis configurations. The second dial is
used to indicate whether the chassis is operating in
standalone mode or as part of a multi-chassis
system.
Two sets of alarm terminal contacts. Each consisting
of normal open and normal closed relays that signal
a minor or major alarm when broken.
Online and Offline buttons located next to each line
card allows you to take individual line cards offline
or online.
Status LEDs for the upper ten line cards.
through and through
0 8 9
through
0 3
Copyright © 2015, Juniper Networks, Inc.
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