Component Leds - Juniper T640 Hardware Manual

Component LEDs

Copyright © 2013, Juniper Networks, Inc.
See "T640 Craft Interface FPC LEDs and Online/Offline Buttons" on page
Alarm LEDs—One large red circular LED and one large yellow triangular LED, located
on the upper left of the craft interface, indicate two levels of alarm conditions. You can
determine the cause of the alarm condition by looking at the LCD on the craft interface.
See "T640 Craft Interface Alarm LEDs and ACO/LT Button" on page
The following LEDs are located on various router components and display the status of
those components:
Connector interface panel (CIP) LEDs—Two small LEDs on left edge of the
port on the CIP indicate the connection in use.
NOTE: When RE-C1800 are installed, the LEDs are always yellow for both
a 10-Mbps connection and 100-Mbps connection.
See "T640 Connector Interface Panel (CIP) LEDs" on page
Control board LEDs—Three LEDs on each control board faceplate indicate the status
of that control board. If no LEDs are lit, the control board is not receiving power.
See "T640 Standard Control Boards LEDs" on page
(T-CBs) LEDs" on page
PIC LEDs—Each port on each PIC has an LED that indicates the status of the port.
See the
T640 Interface Module Reference
SIB LEDs—Three LEDs on each SIB faceplate—
status of that SIB.
See "T640 Switch Interface Boards (SIBs) LEDs" on page 31
SCG LEDs—Three LEDs on each SCG faceplate indicate the status of that SCG.
T640 SONET Clock Generators (SCGs) LEDs on page 50
Power supply LEDs—LEDs on each power supply faceplate indicates the status of that
power supply.
See the following documentation:
T640 Two-Input 160-A DC Power Supply LEDs on page 62
T640 Three-Input 240-A DC Power Supply LEDs on page 65
T640 Four-Input 240-A DC Power Supply LEDs on page 68
T640 Six-Input DC Power Supply LEDs on page 70
T640 Three-Phase Delta and Wye AC Power Supply LEDs on page 74
Chapter 16: Troubleshooting T640 Router Hardware Components
46, or "T640 LCC-CB LEDs" on page
.
ACTIVE
55.
52.
ETHERNET
58.
44, "T640 T Series Control Boards
47.
, , and —indicate the
OK FAIL
201