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Status LEDs

VersaSync's front panel status LEDs provide a real-time status overview: Eight (8) LEDs indicate the unit's current operating state:

The LEDs can be disabled, see Blackout Mode.

Blinking Intervals

The status LEDs can communicate five different operating statuses:

  • "OFF"
  • "ON"
  • "FAST": blinking interval @ 8Hz
  • "SLOW": blinking interval @ 2Hz
  • "HEARTBEAT": sinus-shaped interval @ 1Hz

LED Lighting Patterns

The table below indicates LED status light patterns for common VersaSync operating statuses.

Common light patterns

 
Start-up HEARTB. OFF OFF OFF OFF OFF OFF OFF
Acquiring fix FAST FAST FAST FAST FAST FAST HEARTB. FAST
Software upgrade FAST OFF OFF FAST OFF FAST HEARTB. OFF

Legend, individual LEDs

Legend for Status LEDs

Icon Light Meaning
OFF No power
HEARTBEAT Booting
ON Powered
OFF No GNSS reception (0 satellites)
HEARTBEAT GNSS acquisition in process (≥ 1 satellite(s), or 1PPS OK, or Time OK
SLOW Jamming detected
FAST Antenna short circuit
ON GNSS is available as reference (1PPS and Time OK)
OFF Inputs not detected/all inputs are disabled
FAST 1 or more input is missing, or invalid timing on 1 or more input detected
ON Inputs are enabled
OFF Unit is in Holdover (valid)
ON System Clock OK (valid)
FAST Invalid Time (Holdover period exceeded, or oscillator damaged)
OFF No output signal(s) detected/all outputs are disabled
FAST Malfunction detected (short circuit, or overload)
ON Outputs are enabled
OFF No network detected
FAST Network malfunction detected (e.g., no auto-negotiation)
ON Network OK, configuration OK
OFF Unit OK
FAST Unit requires attention; check other status LEDs, see Web UI
HEARTBEAT See table LED Lighting Patterns
OFF Temperature OK
FAST High temperature detected

LED Patterns during Booting

For the first five seconds after power-up all LEDs will be OFF. Then the Power LED will be blinking before it will be lit permanently. If you have configured your unit to operate in Blackout Mode, this will take effect once the blinking cycle ends.

Blackout Mode

All LEDS can be turned off via the Web UI, and the CLI.

To disable/enable all LED activity via the Web UI:

  • Navigate to MANAGEMENT > OTHER: LED Configuration and click the toggle switch.

To disable all LED activity, using the CLI:

  • Use the command ledctl to access a tool located in /usr/bin/. No arguments are required. To test the command do not forget to use the sudo command (sudo ledctl [options]).