Alarms, Status and Logs

Alarms and alerts configuration

Alarms

Access through SYSTEM → ALARMS tab.

The parameters that trigger alarms are based on the FM tuner signal.

• If RF Level < 40 dB or multipath > 10%, measurements are not valid.
• In this case, fields appear dimmed and no alarms are generated.

The 542APC can send email alerts for the following events:

1. AUDIO SILENCE
2. OVERMODULATION
3. LOW RF POWER

Alarms Configuration

• E-mail Send To → address where alerts will be sent.
  • “Send Test” sends a test email.

To send alerts to multiple addresses, use the mail forwarding feature on the configured account.

• LOG and E-MAIL checkboxes → enable internal memory logging and/or email sending.

Alarm Types

• AUDIO SILENCE:
  • Triggers when the signal falls below the threshold defined in Fail Backup.
  • The time limit (seconds) is adjusted with a slider control.
  • Important: the FM Receiver post-Gain signal is analyzed, so gain affects detection.
• OVERMODULATION:
  • Activates if modulation exceeds the value defined in the alarm.
  • This setting does not affect transmission, only detection.
• LOW RF POWER LEVEL:
  • Activates when low transmission power is detected.
  • Procedure: press Set REF under normal conditions. Then define the % of loss that triggers the alarm.
  • Does not affect transmission.
• SYSTEM START:
  • Generates alarm when equipment restarts (e.g. power outage).
• SYSTEM ERRORS:
  • For internal use only. Events are logged in SYSLOG.

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Status and Logs

• SYSTEM STATUS
  • Shows the current status of the internal stages (Main Processor, Stereo Generator, FM Monitor, RDS and AoIP/Streaming).
• SYSTEM TIME:
  • If the unit has Internet access, it syncs time with an NTP server
  • It can also be synchronized from PC using SYNC FROM PC
  • Date and time are only used in reports and logs
• SYSLOG:
  • Internal memory event log
  • Reserved for specialized personnel in diagnostics and technical support