Table 4: LED Status Indicators (continued)
LED
State
Description
SFP port Link/Act
On Green
Ethernet link up
Off
Ethernet link down
SFP port
Speed
On Amber
SFP port speed 1000 Mbps connection is
detected.
Off
No link or a SFP port speed 100Mbps
connection is detected
RR (Redundant Role)
On
Redundant Master (Ring Master, Ring
Coupling Backup, Dual Homing, Chain
Head, Balancing Chain Central Block ) is
enabled in the system.
Off
No Redundant Master is enabled in the
system.
RS (Redundant Status)
On
1. If any Ring port links are down, the RS
LED will be ON.
2. If the device has any of Redundant
Master (Ring Master, Ring Coupling
Backup, Dual Homing, Chain Head,
Balancing Chain Central Block ) and
detects a Ring/Coupling/Dual
Homing/Chain/Balancing Chain
failure (any node is link down), and
then RS LED will be ON.
Off
All of the Ring ports are link up or Ring/
Coupling/Dual Homing/Chain/Balancing
Chain is healthy.
Industrial Series Switch Overview
LED Status Indicators
ISW Series Managed Industrial Ethernet Switch Hardware Installation & User Guide
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