xStack® DGS-3420 Series Layer 2+ Managed Stackable Gigabit Switch Hardware Installation Reference Guide
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h: When device was selected to be the
Backup Master
G: When Safeguard Engine entering
the exhausted mode.
Port LED Mode
Indicator
A LED Mode Select Button to switch two modes in turn for all
10/100/1000Mbps ports on DGS-3420-28PC/52P:
- Link/Act/Speed Mode
- PoE Mode
Green Solid Light A LED Mode Select Button to switch
Link/Act/Speed Mode
Solid Light A LED Mode Select Button to switch
PoE Mode
LED Per
10/100/1000 Mbps
Port
Link/Act/Speed Mode
Green Solid Light When there is a secure connection (or
link) to 1000Mbps Ethernet device at
any of the ports.
Blinking When there is reception or
transmission of data occurring at
1000Mbps.
Orange Solid Light When there is a secure connection (or
link) to 10/100Mbps Ethernet device at
any of the ports.
Blinking When there is reception or
transmission of data occurring at
10/100Mbps.
Off Light off No link.
PoE Mode
Green Solid Light Power feeding.
Orange Solid Light Error Condition.
Off Light Off No Power feeding.
LED per SFP Port Link/Act
Green Solid Light When there is a secure connection (or
link) to 1000Mbps Ethernet device at
any of the ports.
Blinking When there is reception or
transmission of data occurring at
1000Mbps.
Orange Solid Light When there is a secure connection (or
link) to 100Mbps Ethernet device at
any of the ports.
Blinking When there is reception or
transmission of data occurring at
100Mbps.
Off Light off No link
LED per SFP+
Port
Link/Act
Green Solid Light When there is a secure connection (or
link) to 10G bps Ethernet device at any
of the ports.
Blinking When there is reception or
transmission (i.e. Activity--Act) of data
occurring at a 10G bps port.
Orange Solid Light When there is a secure connection (or
link) to 1000Mbps Ethernet device at
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