Allied Telesis AT-CM70S - Manual (Page 38)

Chapter 1: Converteon™ Fast Ethernet and Gigabit Ethernet Line Cards
38
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 5 lists the fiber optic port LEDs on the AT-CM70S line card.
Table 4. Line Card Fiber Optic Port LEDs
LED State Description
LK Green Link established on the fiber optic port.
Blinking
Green While in Smart MissingLink mode, a
valid connection is established on the
port while a link on the other port is lost.
OFF No link established on the fiber optic
port.
AT Blinking
Green TX/RX activity detected on the fiber optic
port.
OFF No activity detected on the fiber optic
port.
Table 5. AT-CM70S - Fiber Optic Port LEDs
LED State Description
LK Green Link established on the fiber optic port.
OFF No link established on the fiber optic
port.
OAM Green The OAM mode is enabled (visible or
bypass) and can be set by the the DIP
switches.
OFF The OAM mode is disabled.