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I2679-4.0 en
LED indicators
On the front panel of the Master/Slave card two LEDs indicate the status of the
link.
The
icon is used to identify the signal detect function.
The
icon is for data/synchronization identification.
Figure 11.55: LED indicators
A
icon
B
icon
The following table shows the function and possible combinations of the two
LEDs.
Table 11.1: Master/Slave card front panel LED indicators
FRONT PANEL LED INDICATORS
Status
No Link
Optical signal detection/
initialization
Receiving data
No valid characters detected/
off
off
no optical signal detected
Alignment characters detec-
on
off
on
on
Receiving valid data
GEN5i
Description
ted
215
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