Maruson SUR-1218UPS, User Manual

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When AC power fails, “NC” and “NO” connection will
provide a notification signal to the DVR/NVR or alarm system.
Majority of DVR/NVR systems also have e-mail alert features
to send notification of AC power failure.
Long-distance cameras tend to lose voltage due to distance
from power source. Setting Vdc to a high setting will improve
long-distance camera picture quality.
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UPS Bypass Switch
A) UPS Mode: Unit will go into backup mode if power fails.
B) AC Bypass Mode: Switch to this mode when batteries need to be changed or UPS is
abnormal. “AC Bypass” mode will continue to offer power to cameras, DVR and monitor.
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