Table 10: Link/Activity LED on the Management Port on an EX4500 Switch
State and Description
Color
LED
•
Blinking—The port and the link are active, and there is link
activity.
•
On steadily—The port and the link are active, but there is no
link activity.
•
Off—The port is not active.
Green
Link/Activity
describes the Status LED.
Table 11: Status LED on the Management Port on an EX4500 Switch
State and Description
Color
LED
Indicates the speed. The speed indicators are:
•
One blink per second—10 Mbps
•
Two blinks per second—100 Mbps
•
Three blinks per second—1000 Mbps
Green
Status
Related
Documentation
Front Panel of an EX4500 Switch on page 12
•
•
Connecting a Switch to a Network for Out-of-Band Management on page 149
AC Power Supply in EX4500 Switches
The AC power supply in EX4500 switches is a hot-insertable and hot-removable
field-replaceable unit (FRU): You can install it without powering off the switch or
disrupting the switching function.
EX4500 switches ship with an AC power supply that gives an output of 1000 W at
low-voltage line (100–120 VAC) and 1200 W at high-voltage line (200–240 VAC). You
can install a second power supply in the switch too.
Power supplies are installed at the rear of the chassis in slots labeled 1 and 0. Both power
supplies are accessible from the rear of the chassis.
WARNING:
The switch is pluggable type A equipment installed in a
restricted-access location. It has a separate protective earthing terminal
provided on the chassis in addition to the grounding pin of the power supply
cord. This separate protective earthing terminal must be permanently
connected to earth ground. See
“Connecting Earth Ground to an EX Series
Each AC power supply weighs approximately 3 lb (1.3 kg) and has an independent 12 A
rated AC appliance inlet on its front. Each inlet requires a dedicated AC power feed. Each
27
Copyright © 2015, Juniper Networks, Inc.
Chapter 2: Component Descriptions
Содержание EX4500-40F-BF
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