HP E3800-24G-2SFP+ Installation And Getting Started Manual page 37

Verifying the Module is Installed Correctly
Observe the Module Status (Mdl) and Fault LEDs on the front of the switch to
verify the module is installed properly.
Figure 2-6. Location of Module Status LEDs
Fault LED
If the module is installed properly and the switch is powered on, the module
undergoes a self test that takes a few seconds. You can use the LEDs to
determine that the module is installed properly and has passed the self test,
as described in the "LED Behavior" table below.
Table 2-1. Stacking Module LED Behavior
LED Display for a Properly Installed Module
Mdl LED on the front The LED goes ON as soon as the module is installed and the switch
of the switch and is powered on, and stays ON steadily.
Module Status LED
on the module
Fault OFF normal state, no fault condition exist.
Link (for each If stacking cables are connected to the module and to a Stacking
stacking port on the Module on another powered on E3800 switch, the LED goes ON to
module) indicate the stacking port is enabled, connected, and detects a
signal from the attached switch.
Module (Mdl) Status
LED
Installing the Switch
Installation Procedures
2-9