Juniper EX4400 - Page 86

Figure 58: LEDs on the 4x25GbE SFP28 Extension Module Ports
1—
Link acvity LED
2—
Status LED
Table 42: Status LED on the 4x25GbE SFP28 Extension Module Ports
Color State and Descripon
Green Indicates the speed. The speed indicators are:
• On steadily—10 Gbps
• Three blinks per second—25 Gbps
• Unlit—The port is not acve.
Cooling System and
Airow in an EX4400 Switch
IN THIS SECTION
Fan Modules | 79
EX4400 Switches with Front-to-Back Airow | 80
EX4400 Switches with Back-to-Front Airow | 85
How to Posion the Switch | 87
Fan Module Status | 88
78