Specifications

Sweep Tab
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Sweep Tab Options 3
Button Description
Clear Bits Clears checked boxes from each port in the display.
Start Sweep/
Stop Sweep
Toggles Sweep process on or off. When toggled on,
Sweep stays in effect until toggled off or a different tab
is selected.
Sweep Tab Options 4
Port Detection Field* Indication
Freq. Lock Phase Locked Loop (PLL) Lock has been
achieved.
Link Usable The link is useable.
LIP (3x) A Loop Initialization Primitive (LIP)
sequence has been detected and action has
been taken.
LIP(F7) (3x) A loop port is in the non-participating mode
and is attempting to win arbitration and
begin initialization, possibly because the port
was reset or is powering up. Sometimes the
port is sending this sequence to another, hot-
cascaded hub.
LIP (F8) (3x) A loop port has detected a loop failure on its
receive input, is notifying other ports, and is
determining whether the loop is still
operational. Some events that could cause
the port to detect loop failure follow:
• A device on the loop has failed.
• A device on the loop has been powered
off.
• The physical connection between the
transmitter and receiver is broken.
Activating the port bypass circuit does not
typically result in a loop failure.
OPN The port is attempting to open
communications with another port on the
loop.
Note: As is the case with some ordered sets,
an OPN may not go all the way around the
loop, instead stopping at its destination.
* “(3x)” means three consecutive occurrences have been detected.