Ac powered, Ac powered with battery backup – Contemporary Control Systems EISC Configurable Switches Installation Guide User Manual

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TD021000-0IF

AC Powered

The EISC can be powered by an AC voltage in the range of 8–24 V
capable of delivering 12 VA of apparent power. Two auxiliary power
supplies are available as accessory items: The AI-XFMR is for 120
VAC. The AI-XFMR-E is for use with 230 VAC.

Figure 4 — AC Powered

Figure 5 — AC Powered with Grounded Secondary

AC Powered with Battery Backup

The EISC can also operate in the AC mode with a user-provided backup
battery supplying power, if the AC source fails. The EISC does NOT
charge the battery, so separate provisions are required for charging.

Figure 6 — AC Powered with Battery Backup