18 | Chapter 2. Physical Description
GS728TS, GS728TPS, GS752TS, and GS752TPS Smart Switch Hardware Installation Guide
SFP Port LEDs
The following table describes the dedicated SFP port LED designations. Each SFP port has
its own indication LED.
LED Designation
SFP Mode for 2 Combo Ports:
SPD/Link/ACT LED
• Off— No SFP module link is established.
• Solid Green — A valid 1000Mbps SFP module link is established.
• Blinking Green — The port is transmitting or receiving packets at
1000Mbps.
• Solid Yellow — A valid 100Mbps SFP module link is established.
• Blinking Yellow — The port is transmitting or receiving packets
at 100Mbps.
SFP Mode for last 4 SFP Ports:
SPD/Link/ACT LED
• Off—No SFP module link is established on the port.
• Solid Green—A valid 1000/2500Mbps SFP module link is established
on the port.
• Blinking Green—Packets transmission or reception is occurring on the
port at 1000/2500Mbps.
Note: If the port media change to copper, the SFP port LED will change to
the OFF status.
System LEDs
The following table describes the system LED designations.
LED Designation
Power • Solid Green — Device is powered on, run-time code is up and running.
• Solid Yellow — Device is booting up.
• Off — Power is not supplied to the device
Fan • Solid Yellow — Fan has experienced a fail.
• Off — Fan is operating normally.
Stack Master LED • Solid Green — The switch acts as a master unit in a stack of GS700TS series
switches.
• Off — The switch acts as a slave in a stack of GS700TS series switches, or the
stack is operating in standalone mode.
Stack ID Displays the stack ID, from 1 to 6.
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