EXFO ETS-1000G - Manual (Page 22)

Device Description
12 ETS-1000G
LEDs
1G, 1st LED Green LED is
constantly on.
A connection to the 1G
equipment being tested is
established.
Red LED is
constantly on.
No connection.
—
LED is off.
Interface is disabled.
1G, 2nd LED Green LED is flashing
or constantly
on.
Packet traffic is being
transmitted over 1G
interface.
— LED is off. Packet traffic is not being
transmitted.
1G, 3rd LED Green LED is flashing
or constantly
on.
Packet traffic is being
received on 1G interface.
— LED is off. Packet traffic is not being
received.
Test Green LED is
constantly on.
A test is being performed.
Green LED is flashing. The Loopback mode is
enabled.
— LED is off. The Loopback mode is
disabled; testing is not
performed.
Laser Red LED is
constantly on.
Laser is enabled (SFP/SFP+).
LED Color State Description