Nortel Networks 8672ATMM - Manual (Page 25)

23
LEDs
The MDAs have two bicolor LEDs on each port: one marked TX
(transmit) and one marked RX (receive).
Table 6 describes the
LEDs.
Table 6 MDA LED indications
Label Color State Meaning
TX Green Steady Indicates network activity for the
corresponding port. A very low level of
network activity (approximately 1-5 pps) can
cause the LED to blink.
—
Off The port is not transmitting data (no network
activity).
Amber Blinking The port is out of order; the administrative
state is down.
RX Green Blinking Indicates network activity for the
corresponding port (the port is receiving
traffic).
Green Steady The port is operational; no network activity.
Amber Blinking The port is not operational; the administrative
state is down.
Amber Steady A Remote Defect Indication (RDI)
1
alarm
condition has been detected; the
administrative state is down.
—
Off The port is not operational (be sure that the
MDA is fully seated in the slot; check that the
port is properly configured).