Juniper EX4300 Series User Manual

Table 71: Special Instrucons to Follow Before Connecng Earth Ground to an EX Series Switch
(Connued)
Switch Special Instrucons
EX4200, EX4500,
and EX4550
If you plan to mount your switch on four posts of a rack or cabinet, mount your switch in
the rack or cabinet before aaching the grounding lug to the switch.
NOTE: The protecve earthing terminal on switches mounted on four posts of a rack is
accessible through the slot on the le rear bracket only if the rack is 27.5 in. (69.85 cm)
through 30.5 in. (77.47 cm) deep for a switch mounted ush with the rack front and
29.5 in. (74.93 cm) through 32.5 in. (82.55 cm) deep for a switch mounted 2 in. (5.08 cm)
recessed from the rack front. See Figure 65 on page 195.
Figure 65: Connecng the Grounding Lug to a Switch Mounted on Four Posts of
a Rack
1—
Protecve earthing terminal
3—
Grounding lug
2—
Side mounng-rail
4—
Rear mounng-blade
NOTE: The brackets must be aached to the chassis before the grounding lug is aached.
(The brackets are shown pulled away from the chassis so that the protecve earthing
terminal is seen.)
Connecng Earth Ground to an EX Series Switch
To connect earth ground to an EX Series switch:
1. Verify that a licensed electrician has aached the cable lug to the grounding cable.
195

Juniper EX4300 Series Specifications

General

Product Series	EX4300 Series
Power Consumption	Varies by model and configuration
Virtual Chassis Technology	Up to 10 switches
Software	Junos OS
Ports	24-port and 48-port models
10GBASE SFP+ Ports	Up to 8 ports
40GBASE QSFP+ Ports	2
Uplink Ports	Up to 4 ports
Jumbo Frames	Up to 9216 bytes
Operating Temperature	0°C to 45°C
Relative Humidity	5% to 90% noncondensing
Input Voltage	100 to 240V AC
Power Supply	AC or DC
Power Supply Options	AC or DC
Stacking	Yes
Layer 2 Features	Includes VLAN, STP, RSTP, MSTP, LACP
Layer 3 Features	OSPF, BGP
Management	CLI, Web GUI, SNMP
Security Features	DHCP snooping
QoS	8 queues per port, DSCP
Storage Temperature	-40°C to 70°C