Allied-telesis AT-MR820T Uživatelský manuál stáhnout pdf (Strana 30)

Installation

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

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Allied-telesis AT-MR820T Uživatelský manuál Strana 30