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GPS 4 Timing Source Indicator LEDs
Figure 13: GPS 4 Timing Source Indicator LEDs
Power: Indicates that the unit is powered on.
Locked: The Protium unit is synched with the GPS.
Holdover: There is a valid clock, but it is not synchronized with the GPS.
Alarm: The GPS unit is not functioning properly.
Please Note: The “Power” LED should be lit when the unit is powered on.