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Status LEDs

Three Status LEDs (see SecureSync front panel layout (SAASM version)), located on the unit's front panel, indicate SecureSync's current operating status:

  • POWER: Green, always on while power is applied to the unit
  • SYNC: Tri-color LED indicates the time data accuracy
  • FAULT: Two-color, three-state LED, indicating if any alarms are present.

At power up, the unit automatically performs a brief LED test run during which all three LEDs are temporarily lit.

Front panel status indications

LED Label Activity/Color Description

POWER
Off Both AC, and DC input power are disconnected.
OR: The unit's AC input switch is turned OFF, and DC input is not present.
On/solid green AC and/or DC Power are supplied; the unit detects all power inputs.
Red The unit is configured for two power inputs, but detects only one power input. OR: Detects a power configuration error.
Green & blinking orange 1/sec. Power Error — general power configuration fault.

SYNC
Red Time Sync Alarm:
1) The unit has powered up, but has not yet achieved synchronization with its inputs.
2) The unit was synchronized to its selected input references, but has since lost all available inputs (or the inputs were declared invalid) and the Holdover period has since expired.
Solid green The unit has valid time and 1PPS reference inputs present and is synchronized to its reference.
Orange The unit is in Holdover Mode: It was synchronized to its selected input references, but has since lost all available inputs (or the inputs are not declared valid).The time and frequency outputs will remain useable until the Holdover period expires.

FAULT
Off No alarm conditions are currently active.
Blinking orange A GNSS antenna alarm has been asserted and is currently active. A short or open circuit has been detected in the GNSS antenna cable. The light will automatically turn off once the alarm condition clears.
To troubleshoot this condition, see Troubleshooting via Web UI Status Page.
Solid orange A Minor Alarm condition (other than an antenna problem alarm) has been asserted and is currently active.
To troubleshoot this condition, see Minor and Major Alarms.
Red A Major Alarm condition has been asserted and is currently active.
To troubleshoot this condition, see Minor and Major Alarms.