NC-AD300E Manual
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Each E1 expressed by two square boxes, the red color means failure, the green color means
normal. The left boxes indicate the physical synchronization signal. The right box indicate the
HDLC link status. "Ss7Link" Here is the status of signaling links on SS7 signaling. Double-click
the sync box (left), you can open the current E1 channel state table. Double-click the link box
(right), you can open the link data tracking.