Network problems with ISD400-7xx1 switched off

This article describes an issue that may occur when the supply voltage of an ISD400-7xx1 is switched off.

How to detect a low reception level on the ISD400 Core data transmission system?

This article describes the behavior of display, frontside LED and switching output in case of low reception level at ISD400 Core.

How does the heating of the ISD400 Core data transmission systems work?

This article describes how the heating of the ISD400 Core data transmission works.