Table 1. Media Converter Led Functional Descriptions - Allied Telesis AT-DMC1000/SC Installation Manual

Chapter 1: Overview
20
Table 1 describes the media converter's LEDs.

Table 1. Media Converter LED Functional Descriptions

LED State
Off
Solid Green
(with
Heartbeat)
SYS
Slow
Blinking
Green
Off
Steady
Green
Copper Port
LINK/ACT
Rapid
(ACT =
Blinking
Activity)
Green
Slow
Blinking
Green
Off
Steady
Green
Copper Port
Blinking
DUP/COL
Green
Slow
Blinking
Green
Description
The media converter is not receiving
power or is not operational and will not
pass traffic.
The media converter is operational.
Note: The SYS LED will flicker briefly at a
regular interval. This "heartbeat" indicates
that the internal system is running
normally.
An error is present on the media
converter.
The port has not established a link.
The port has an established link to a
network device, but it is not transmitting or
receiving network packets.
The port is transmitting or receiving
network packets.
SML is on and detects a failure on the fiber
port.
The port has not established a link.
The port is operating in full-duplex mode.
Collisions are occurring on the port.
If copper port LINK/ACT LED also slowly
blinking, SML is on.