24
Ports and LEDs
Figure 20 LSEM1CGQ16SF0/LSEM3CGQ16SF0 front panel
(1) 100GBASE-R-QSFP28 fiber ports
(2) RUN/ALM LED
(3) 100GBASE-R-QSFP28 fiber port LEDs
Table 23 LED description
LED
Status
Description
QSFP28 port LED
Flashing
The QSFP28 port is sending or receiving data.
On
A link is present on the QSFP28 port.
Off
No link is present on the QSFP28 port.
RUN/ALM LED
Flashing green (once per
two seconds)
The interface module is operating correctly.
Flashing green (four
times per second)
The interface module is loading software.
Steady green
The interface module is starting up.
Steady red
The interface module is faulty, or a high severity
alarm has occurred on the interface module.
Flashing red (once per
four seconds)
The temperature of the interface module has
exceeded the upper warning threshold or fell below
the lower warning threshold.
Off
The interface module is faulty or not present.