Articles in the Notes category

  1. Notes on Legacy Railway Signalling

    Railway "Cab Signalling" systems, particularly those used for Automatic Train Operation (ATO) is another topic I find very interesting.

    Modern systems typically use "Balises", often similar to RFID in operation, and a wireless link to the train (occationally WiFi).

    While these are great from an operational perspective, I'm much more …

  2. Notes on the iD Alarm Protocol

    Overview

    The iD ("Intelligent Device") protocol was a method of connecting multiple devices (typically up to 30) on a single wire.

    One example of a device supporting this protocol was the "Karizma" panel from Advanced Design Electronics, but a number of other vendors also supported this protocol (including Texecom and …