Key facts
- Manuals
- 1
- Languages
- EN
- Last added
- 2026-10-17
Featured Nortroll manuals
ComTroll 333 ICU Indicator Communication Unit User Manual
The Nortroll ComTroll 333 ICU is a general GSM communication interface designed for fault detection and management in applications such as earth-fault indicators and line protection equipment. It communicates with SCADA systems via SMS through the ComTroll 120 GSM LON Router or standalone, acting as an extension to the QuickLink short-range radio system.
Covers: Introduction · Hardware Description · Functional Description · Configuration Commands · Status Messages · Installation in NetTroll
Latest Nortroll manuals
ComTroll 333 ICU Indicator Communication Unit User Manual
User Manual 24 pages · 658 KB · ENThis manual describes the installation, setup, configuration commands, and technical specifications for the Nortroll ComTroll 333 ICU GSM communication unit.
Which document do I need?
User Manual
Day-to-day operation, settings and troubleshooting. Start here if the product is already set up.
Questions answered in Nortroll manuals
What happens if the heartbeat messages are not received?
An alarm is raised to indicate a faulty device or a bad communication link.
From: ComTroll 333 ICU Indicator Communication Unit User Manual
Can the relay outputs be operated remotely?
Yes, they can be operated remotely by sending an SMS with the correct password.
From: ComTroll 333 ICU Indicator Communication Unit User Manual