Allied Telesis AT-MR820TR - Manual (Page 33)

AT-MR420TR and AT-MR820TR Installation Guide
11
Note
A data packet is too fast for the human eye to distinguish on
an LED, therefore the LEDs will not reflect real-time activity.
The repeater artificially stretches the LED on time for easier
observation.
Figure 6: Port Indicators
Each RJ45 repeater port has two LEDs — LINK OK and Receive:
❑ LINK OK
— No light—Indicates typically a physical connection problem.
The device at the other end of the cable may be powered off,
the cable may be loose or disconnected, or the cable has been
wired incorrectly. Check the crossover cable.
— Green (Steady)—Indicates a valid link exists.
❑ Receive
— Amber (Flashing)—Link is OK, port is not partitioned and
there is activity on the port. Brief flashes indicate low traffic
levels.
In short, port status LEDs show the functionality of the port. If the
LINK OK status light is green and the Receive status is flashing
amber, a signal is being received and the segment attached to the port
is functional.
MRx20TR(STP/UTP)_BookA Page 11 Thursday, April 3, 1997 5:24 PM