Allied Telesis AT-MR420T, Installation Manual

Page: 30 / 66

Installation
8
Port Status Indicators
Associated with each 10Base-T (RJ45) network port are the two Port
status LEDs. These LEDs indicate whether the port is linked, receiving
data, or both. See Figure 5.
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 5: Port Indicators
Each RJ45 repeater port has two LEDs — LINK OK and Receive:
❑
LINK OK
— No light—Link is not OK. If the polarity is incorrect, the
Link OK light is OFF until polarity is corrected by the
multiport repeater UTP port.
— Green (Steady)—Indicates a valid link.
❑
Receive
— Amber (Flashing)—Link is OK, port is not partitioned and
there is activity on the port. Brief flashes indicate low traffic
levels.
MRx20T(UTP)Ver6_Book Page 8 Thursday, April 3, 1997 5:18 PM