Allied Telesis AT-S70 - Manual (Page 76)

Chapter 7: Working with Line Cards and Other Modules
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Link (A) and Link (B)
Indicates whether there are any active connections between a port
and the device connected to the port. Online indicates that there is a
link while Offline indicates that there is no link.
OpMode
Indicates the operating mode status configured on the line cards.
Possible values are:
ˆ Smart Missing Link Mode (SML)
ˆ Missing Link Mode (ML)
ˆ OAM BYPASS Mode
ˆ OAM Visible Mode
ˆ Link Test Mode
More...
Scrolls the screen to show the remaining modules.
2. Press or select the “Return to ...” option at the bottom of the
menu, to save the settings and return to the previous menu.