Juniper EX4300, Руководство по оборудованию

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Table 3: Components in 24-Port EX4300 Switches (continued)
Supported
Uplink
Module
Power Supply
Shipped by Default Fan Modules Shipped
by Default
Number of
PoE-enabled
Ports
Built-In Ports Switch Models
4-port
10-Gigabit
Ethernet SFP+
uplink module Power supplies for
this model are not
shipped by default;
you must separately
order either AC power
supplies or DC power
supplies. Fan modules for this
model are not shipped
by default; you must
separately order either
two
AIR OUT (AFO)
labelled or two AIR IN
(AFI) labelled fan
modules.
24 24
10/100/1000BASE-T
Ethernet ports and
four QSFP+ ports EX4300-24P-S
You can use the QSFP+ ports as network ports or as Virtual Chassis ports (VCPs) to
connect the switch in a Virtual Chassis or a VCF. By default, the built-in QSFP+ ports are
configured as VCPs. You can also use the uplink module ports to connect members of a
Virtual Chassis or a VCF across multiple wiring closets by configuring the ports as VCPs.
For more information about Virtual Chassis, see
EX Series Virtual Chassis Overview . For
more information about VCFs, see Virtual Chassis Fabric Overview .
32-Port EX4300 Switches
The 32-port EX4300 switches—EX4300-32F and EX4300-32F-DC—provide 32 built-in
1-Gigabit Ethernet small form-factor pluggable (SFP) network ports that can house SFP
transceivers, four built-in 10-Gigabit Ethernet small form-factor pluggable plus (SFP+)
ports, and two built-in QSFP+ ports. They support power supply and fan module with
front-to-back airflow direction and have a slot for installing an optional uplink module—a
2-port 40-Gigabit Ethernet QSFP+ uplink module that can house two QSFP+ transceivers
or an 8-port 10-Gigabit Ethernet SFP+ uplink module that can house eight SFP+
transceivers, eight SFP transceivers, or a combination of eight SFP+ and SFP transceivers.
Figure 3 on page 6 shows the front panel of a 32-port EX4300 switch.
Figure 3: Front Panel of a 32-Port EX4300 Switch
Figure 4 on page 7 shows the rear panel of a 32-port EX4300 switch.
Copyright © 2015, Juniper Networks, Inc. 6
EX4300 Switch Hardware Guide