User's Manual Part 2

Release8InstallationandConfigurationGuide
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Issue2,November2007 Draft5forRegulatoryReview 179
16.2.4 DiagnosticLEDs
The diagnostic LEDs report the following information about the status of the module.
Table 40 and Table 41 identify the LEDs in order of their left-to-right position as the cable
connections face downward.
NOTE:
The LED color helps you distinguish position of the LED. The LED color does
not
indicate any status.
Table 40: LEDs in AP and BHM
Label
Color
when
Active
Status Information
Provided Notes
LNK/5 green Ethernet link Continuously lit when link is present.
ACT/4 orange
Presence of data activity
on the Ethernet link
Flashes during data transfer. Frequency of flash is not a
diagnostic indication.
GPS/3 red Pulse of sync Continuously lit as pulse as AP receives pulse.
SES/2 green
Unused on the AP
SES is the session indicator on the CMM.
SYN/1 orange Presence of sync Always lit on the AP.
PWR red DC power Always lit when power is correctly supplied.
Table 41: LEDs in SM and BHS
Label
Color
when
Active
Status if
Registered
Notes
Operating Mode Aiming Mode
LNK/5 green Ethernet link
Continuously lit when link is
present.
These five LEDs act as a bar
graph to indicate the relative
quality of alignment. As power
level and jitter improve during
alignment, more of these
LEDs are lit.
ACT/4 orange
Presence of data
activity on the
Ethernet link
Flashes during data transfer.
Frequency of flash is not a
diagnostic indication.
GPS/3 red
Unused
If this module is not registered
to another, then these three
LEDs cycle on and off from left
to right.
SES/2 green
Unused
SYN/1 orange Presence of sync
PWR red DC power
Always lit when power is
correctly supplied.
Always lit when power is
correctly supplied.