Juniper T640 Hardware Guide

the ping and traceroute utilities. For information about using the CLI to troubleshoot
the Junos OS, see the appropriate Junos OS configuration guide.
•
JTAC—If you need assistance during troubleshooting, you can contact the Juniper
Networks Technical Assistance Center (JTAC) by using the Web or by telephone. If
you encounter software problems, or problems with hardware components not
discussed here, contact JTAC.
Related
Documentation
T640 Connector Interface Panel (CIP) Description on page 19•
• T640 LED Overview on page 464
• T640 Alarm Messages Overview on page 466
• Contacting Customer Support on page 483
T640 LED Overview
•
Craft Interface LEDs on page 464
•
Component LEDs on page 465
Craft Interface LEDs
The craft interface is the panel on the front of the router that displays system status
messages and allows you to troubleshoot the router. The craft interface is located at the
top of the chassis above the FPC card cage. It contains LEDs, buttons, and an LCD showing
status messages for the router.
To display system alarm messages on the LCD, see “T640 Alarm Messages Overview”
on page 466. For more information about using the craft interface, see “T640 Craft Interface
Description” on page 22.
LEDs on the craft interface include:
•
Host subsystem LEDs—Three LEDs (one green MASTER, one green OK, and one red
FAIL) indicate the status of each host subsystem. The host subsystem LEDs are located
on the upper right of the craft interface, and are labeled HOST0 and HOST1.
See “T640 Craft Interface Host Subsystem LEDs” on page 24.
•
SIB LEDs—Two LEDs (one red FAIL and one green OK) indicate the status of each SIB.
The SIB LEDs are located on the upper right of the craft interface, and are labeled SIB0
through SIB4.
See “T640 Craft Interface SIB LEDs” on page 26.
•
FPC LEDs—Two LEDs (one red FAIL and one green OK) indicate the status of each
FPC. The FPC LEDs are located along the bottom edge of the craft interface, and are
labeled FPC0 through FPC7.
Copyright © 2017, Juniper Networks, Inc.464
T640 Core Router Hardware Guide

Juniper T640 Specifications

General

Brand	Juniper
Model	T640
Category	Network Router
Language	English