Black Box TS255A Spécifications télécharger pdf (Page 25)

Interpreting the Link and Speed LEDs

Chapter 2 Copper TAPs

rev. 1

common speed and other capabilities. The LED pattern is that the

Speed LEDs flash and the Link LEDs flicker.

2 Connecting. The link parameters are attempting to connect using

the parameters determined during the Capabilities search. The

LED pattern is that the TAP shows the connection speed while

the Link LEDs continue to flicker.

3 Connected. Both link ports/connections are connected to the link

partners at a common speed. The Speed LED shows connection

speed. The Link LEDs light steadily (idle) or flicker depending on

whether there is any traffic present. If a Link LED is unlit, there is

no functioning device connected to that port.

See “How do I connect my failover devices?” on page 55 for details

about what happens when a primary device fails.

Error conditions are shown by the Speed LEDs for approximately 10

seconds, after which the TAP resets itself (goes back to the Search

connection step).

Table 3 Errors

LED Pattern Error Condition

The Speed LED lights repeat the following

sequence: 10

→ 100 → 1000.

No Common Speed. There is no common speed capability

between the devices attached to Link A and Link B.

The 10 LED flashes. The other Speed LEDs are

on and do not flash.

Timed Out. The TAP software has timed out waiting for

some event.

The expected speed’s LED is on, while the

actual speed’s LED flashes.

Wrong Speed. One of the links has connected at the

wrong speed.

The 1000 LED flashes. The other Speed LEDs

are on and do not flash.

Logic Error. This error occurs when the link partner

capabilities are ambiguous.

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Black Box TS255A Spécifications Page 25