Timing
Link
Login
This screen presents information about the physical state and current state
of the link.
Bit rate
The currently received bit rate is shown in bits per second (bps).
Bit rate difference
The current difference between the received signal's bit rate and the
nominal bit rate is shown in both parts per million (ppm) and bits per second
(bps).
Accumulated difference
The accumulated difference between the received signal's bit rate and the
nominal bit rate is shown. The information is presented as the number of bits
of difference detected over the accumulation period.
This is important information for identifying small frequency differences, which
may not be visible by showing the current bit rate difference.
The accumulated difference information is accumulated continuously. The
accumulation is reset when measurement is started or restarted.
The link status information consists of the following parameters:
Signal Present
Indicates the detection/loss of a valid signal (bit synchronization).
Sync Acquired
Indicates word synchronization acquired/lost.
Link Status
Indicates the current link status.
Fabric Login
Lamp icon lit in green when login.
Port Login
Lamp icon lit in green when login.
9.1.3.3 Alarms and Errors
The middle summary box in the status area of the Ports Setup screen
indicates alarms and errors. Status is indicated by the use of colored Lamp
icons.
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