There is no battery backup or capacitor in the 4iE, however, there is internal memory. Periodically the programming and date/time are stamped to a section of internal memory. This is then overwritten when the next stamp takes place. When the power is resumed following a power outage, the device will revert to the most recent stamp taken.
This post explains the size requirements of the image file you are trying to upload as a 4iE background.
Take a look at the inside of the DS-5 and preview the setting options available. Click “Read More” for details.
This page will explain the purpose of the LTC Dip Switch and the recommended settings for the most efficient installation.
