Dell PowerConnect J-EX4200, Hardware Manual

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J-EX4200 Ethernet Switches have these features:
•
Run under Junos OS for J-EX Series switches
•
Have options of 24-port and 48-port models
• Have options of full (all ports) or partial (8 ports) Power over Ethernet (PoE) capability
• Have optional uplink modules that provide connection to distribution switches
J-EX4200 Switches
J-EX4200 switches provide connectivity for medium- and high-density environments
and scalability for growing networks. These switches can be deployed wherever you need
a high density of Gigabit Ethernet ports (24 to 480 ports) or redundancy. Typically,
J-EX4200 switches are used in large branch offices, campus wiring closets, and data
centers where they can be positioned as the top device in a rack to provide connectivity
for all the devices in the rack.
You can connect individual J-EX4200 switches together to form one unit and manage
the unit as a single chassis, called a
Virtual Chassis . You can add more member switches
to the Virtual Chassis as needed, up to a total of 10 members.
J-EX4200 switches are available in models with 24 or 48 ports and with no ports or 8
ports equipped for PoE. All models provide ports that have 10/100/1000Base-T Gigabit
Ethernet connectors and optional 1-gigabit small form-factor pluggable (SFP) transceivers
or 10-gigabit small form-factor pluggable (SFP+) transceivers.
Additionally, a 24-port model provides 100Base-FX/1000Base-X SFP ports. This model
is typically used as a small distribution switch.
All J-EX4200 switches have dedicated 64-Gbps Virtual Chassis ports that allow you to
connect the switches to each other. You can also use optional uplink module ports to
connect members of a Virtual Chassis across multiple wiring closets.
To provide carrier-class reliability, J-EX4200 switches include:
• Dual redundant power supplies that are field-replaceable and hot-swappable. An
optional additional connection to an external power source is also available.
•
A field-replaceable fan tray with three fans. The switch remains operational if a single
fan fails.
• Redundant Routing Engines in a Virtual Chassis configuration. This redundancy enables
GRES (graceful Routing Engine switchover) and nonstop active routing.
•
Junos OS with its modular design that enables failed system processes to gracefully
restart.
Uplink Modules
Optional uplink modules are available for all J-EX4200 switches. Uplink modules provide
four 1-gigabit small form-factor pluggable (SFP) transceivers or two 10-gigabit small
form-factor pluggable (SFP+) transceivers. You can use SFP or SFP+ ports to connect
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Dell PowerConnect J-Series J-EX4200 Ethernet Switch Hardware Guide