Juniper EX4300 Series

corresponding interface. If a port is congured to operate at 40-Gbps or 100-Gbps speed, the LED
labeled 2 for that port in Figure 36 on page 77 becomes operaonal and indicates the link acvity on
the corresponding port.
Figure 37: LEDs on the Ports on the 4-Port 1-Gigabit Ethernet SFP/10-Gigabit Ethernet SFP+ Uplink
Module for EX4300-48MP and EX4300-48MP-S Switches
1—
Capve screws of the uplink module
3—
Status LED of the uplink module port
2—
Link acvity LED of the uplink module port
4—
Handle of the uplink module
The Table 21 on page 78 describes the link acvity LED on 10/100/1000BASE-T network ports, SFP
network ports, SFP+ uplink ports, SFP+ uplink module ports, built-in QSFP+ ports, QSFP+ uplink module
ports, and QSFP+/QSFP28 uplink module ports.
Table 21:
Link/Acvity LED
LED Color State and Descripon
Link acvity Green
• Blinking—The port and the link are acve, and there is link acvity.
• On steadily—The port and the link are acve, but there is no link
acvity.
• O—The port is not acve.
On EX4300 switches except EX4300-48MP and EX4300-48MP-S switches, from the Idle menu of the
LCD panel, use the Enter buon on the LCD panel to toggle between the ADM, DPX, SPD, and PoE+
indicators.
Table 22 on page 79 describes the Status LED on 10/100/1000BASE-T Ethernet network ports and
SFP network ports on EX4300 switches except EX4300-48MP and EX4300-48MP-S switches.
78