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N-Tron
®
Series NT24k
®
Compact Hardware Manual
1-81
P
RODUCT
O
VERVIEW
R
EVISED
2017-09-11
LED
S
D
RAWING
N
O
. LP0987-D
1.29 LEDs
Data ports have two LEDs labeled LNK and ACT. The LNK LED indicates link status and the ACT LED indicates
activity. The NT24k-16M12 models have one LED labeled LNK/ACT where solid green indicates link only and
flashing or solid yellow indicates link and activity.
The table below describes the operating modes:
GX Ports
RJ45 ports
FX ports
M12 ports
DM ports
LED
Color
Description
Green
Power is On
Red
Power is On and a fault condition exists
Off
Power is Off
LNK
Green
10/100/1000 Mb Link between ports
Off
No link between ports
ACT
Green
Data is active between ports. Activity light blink rate indicates activity, not
necessarily the volume of activity
Off
Data is inactive between ports
LNK/ACT
Green
10/100/1000 Mb Link between ports. Data is inactive between ports
Yellow
10/100/1000 Mb Link between ports. Data is active between ports. The
blink rate indicates activity, not necessarily the volume of activity
Off
No link or activity between ports
PoE Port Status
Green
Port is supplying PoE power normally
Blinking
Port has not completed negotiation with the powered device or indicates a
fault condition exists
Off
No PoE power is being supplied to the device
BYPASS
Green
Ports are in forced bypass mode
Off
When unit is powered on, ports are not in bypass mode (operate as
standard ports)
When unit is powered off, ports are in bypass mode