- 9 -
LED
Color State Description
Off
When the system has successfully
booted up and no events have been
triggered.
M/H
(MSTR/
HEAD)
Green
On
The switch is set as the Master of the
Turbo Ring, or as the Head of the Turbo
Chain, or as the Root of the RSTP.
Blinking
1.
The switch has become the Master
of the Turbo Ring after the Turbo
Ring has gone down.
2.
The switch is set as the Head of the
Turbo Chain and the Turbo Chain
has gone down.
3.
The switch is set as the Turbo
Ring’s Member and the
corresponding Ring port is down.
4.
The switch is set as the Turbo
Chains' Member/Tail and the
corresponding Head-end Chain port
is down.
Off
When the switch is not the
Master/Head/Root of this Turbo
Ring/Turbo Chain/RSTP Ring.
C/T
(CPLR/
TAIL)
Green
On
1.
The switch’s ring coupling or dual
homing function is enabled.
2.
The switch is set as the Tail of the
Turbo Chain.
Blinking
1.
The switch is set as the Tail of
Turbo Chain and the Chain has
gone down.
2.
The switch is set as Turbo Chain’s
Member/Head and the
corresponding Tail-end Chain port
has gone down.
Off
When the switch disables the coupling
or the Tail of Turbo Chain.
SYNC
Amber
On
The PTP function is enabled.
Blinking The switch receives sync packets but
the time has not converged yet.
Green
On
The PTP function has successfully
converged.
EPS
(External
Power
Supply)
Amber
On
Normal operation.
Off
No external power supply for PoE.
M1 Copper
(10/100/
1000 Mbps,
4GT model
only)
Green
On
When the port is active and links at
1,000 Mbps.
Blinking When the port’s data is being
transmitted at 1,000 Mbps.
Off
When the port is inactive or link down.
Amber
On
When the port is active and links at
10/100 Mbps.
Blinking When the port’s data is being
transmitted at 10/100 Mbps.
Off
When the port is inactive or link down.
