Fiber Optic Port Leds; Table 4. Line Card Fiber Optic Port Leds; Table 5. At-Cm70S - Fiber Optic Port Leds - Allied Telesis AT-CM20x Series Reference Manual

Chapter 1: Converteon™ Fast Ethernet and Gigabit Ethernet Line Cards
Fiber Optic Port
LEDs
Table 4 lists the fiber optic port LEDs, except for AT-CM70S line card. For
LEDs on the AT-CM70S line card, refer to Table 5.

Table 4. Line Card Fiber Optic Port LEDs

LED State
LK Green
Blinking
Green
OFF
AT Blinking
Green
OFF
Table 5 lists the fiber optic port LEDs on the AT-CM70S line card.

Table 5. AT-CM70S - Fiber Optic Port LEDs

LED State
LK Green
OFF
OAM Green
OFF
Description
Link established on the fiber optic port.
While in Smart MissingLink mode, a
valid connection is established on the
port while a link on the other port is lost.
No link established on the fiber optic
port.
TX/RX activity detected on the fiber optic
port.
No activity detected on the fiber optic
port.
Description
Link established on the fiber optic port.
No link established on the fiber optic
port.
The OAM mode is enabled (visible or
bypass) and can be set by the the DIP
switches.
The OAM mode is disabled.
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