Install Guide

LED behavior
The following S4200-ON Series (S4248FB-ON and S4248FBL-ON) switch LED behavior displays during open networking
installation environment (ONIE) operations:
Figure 4. S4200-ON Series LEDs
1.
System LED 2. Locator LED
3. Link Port LED 4. Activity Port LED
5. QSFP28 Port LED 6. RJ-45 Ethernet Port LED: Left is link; right is activity.
7. Fan LED 8. Power LED
Table 1. S4200-ON series LED behavior
LED Description
System Status/Health LED
● Solid green—Normal Operation
● Blinking green—Booting
● Solid yellow—Critical system error
● Blinking yellow—Noncritical system error, fan failure, or
power supply failure
Power LED
● Off—No power
● Solid green—Normal
● Solid yellow—POST is in process
● Blinking yellow—Power supply failed
FAN LED
● Solid green—Fan powered and running at the expected
RPM
● Blinking yellow—Fan failed, including incompatible airflow
direction when you insert the PSU or fan trays with
differing airflows
● Off—No power
LOCATOR LED/System beacon
● Off—Locator function is disabled
● Blinking blue—Locator function is enabled
RJ-45 Ethernet LED
● Off—no link and no activity detected
● On—Activity on the port
● Solid yellow—10MHz activity
● Solid green—100MHz activity
● Blinking green—1GHz activity
S4200-ON series switch 9