34
Installation DRAGON MACH4000
Release
01
07/2018
D4K-12SFP
Figure 15: Media module status: location of the display elements on the module
LED Display Color Activity Meaning
PWR Supply
voltage
— none Media module is inoperative
green lights up Voltage supply to the media module is on
L/D Link state/
data traffic
— none Device detects an invalid or missing link
green lights up Device detects a valid link
flashes 1
time a
period
Port is switched to stand-by
flashes 3
times a
period
Port is switched off
yellow lights up Device detects a non-supported SFP
transceiver or a non-supported data rate
flashing Device is transmitting and/or receiving
data
flashes 1
time a
period
Device detects at least one unauthorized
MAC address (Port Security Violation)
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