Spectracom 9183 - Status Indicator

Model 9183 Instruction Manual Page 4-3
4.1.1 Status Indicator
At power up, a quick LED test is run. The unit displays a Red – Green – Orange sequence to
ensure the operation of the LEDs.
The table on the following page describes the operation of the LEDs. In this table, the terms
“Blink” and “Flash” are used.
Blink is defined as ½ second on, ½ second off
Flash is defined as
1
/
20
second on,
19
/
20
second off
LABEL COLOR ACTIVITY DESCRIPTION
POWER
Green On
Off
Power is supplied to the NetClock.
Power is disconnected.
Off No fault but not synchronized to GPS. Holdover
spec has not been met.
Green On Synchronized to GPS. Time is valid and within the
Locked to GPS accuracy specs.
Blinking
Green
Holdover mode. Not synchronized to GPS but time
is still within Holdover accuracy specs. Also
indicates the unit is synchronized with the optional
dial-out modem (Option 3).
Yellow On No longer synchronized to GPS but no unit fault.
Time accuracy may not be meeting holdover specs.
Blinking
Yellow
Unit is in power-up initialization mode. The unit is
in this mode for the brief period between power on
and when it is operationally ready to receive satellite
data.
Flashing Red GPS antenna fault. This flash may occur over any of
the other color conditions at runtime.
Red On Unit fault. Time may not be valid. Overrides all
other indicators.
SYNC
Multi
Blinking Red If the unit fails Power On Self Test (POST) then the
indicator will blink in a sequence indicating the
failure code (consult factory)
Ethernet
(left)
Yellow On
Off
LAN Activity detected.
No LAN traffic detected.
Ethernet
(right)
Green On
Off
LAN Link established 10 or 100 Mb/s.
No link established.
Table 4-1: Status Indicator