Apply power to the network engine. After you apply power, the device requires approximately three minutes to start up and become operational. See LED test sequence at startup.
Startup is complete and the network engine is operational when the HEARTBEAT LED is flashing purple and the FAULT LED is off. The various LEDs are shown in Figure 1.
Note: The super capacitor in the SNE that backs up volatile
memory during shutdown can degrade if the engine sits idle without power for over nine months.
Ensure you connect an idle SNE to power for approximately 24 hours every 8 to 9 months, which
sufficiently charges the super capacitor.