T640 Connector Interface Panel (CIP) LEDs
Two small LEDs on the left edge of the ETHERNET port indicate activity and the speed
of the connection in use. Table 4 on page 22 describes the functions of the LEDs.
NOTE: For routers with RE-C1800 Routing Engines, see the release notes for
your router regarding more information about the LED behavior for the
ETHERNET port.
Table 4: CIP LEDs
DescriptionStateColorLED
Traffic is passing through the port.On steadliyGreenACT 0 and ACT 1
No traffic is passing through the port.Off--
100-Mbps connectionOn steadilyGreenGRN = 100M
YEL= 10M
10-Mbps connection
NOTE: When RE-C1800 Routing Engines are
installed, the yellow LED indicates a 100-Mbps
connection.
On steadilyYellow
Control board is offline.Off--
Related
Documentation
Outstanding Issues with the T640 Router on page 11•
• T640 Connector Interface Panel (CIP) Description on page 19
• T640 RE-C1800 Description on page 42
• Connecting the T640 Router to a Network for Out-of-Band Management on page 212
• T640 LED Overview on page 464
T640 Craft Interface Description
The craft interface allows you to view status and troubleshooting information at a glance
and to perform many system control functions. It is hot-insertable and hot-removable.
The craft interface is located on the front of the router above the FPCs and contains the
following:
Copyright © 2017, Juniper Networks, Inc.22
T640 Core Router Hardware Guide
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