Signalling

Signalling

here is a message sequence chart for railway signalling.

Bell:

http://www.railwaycodes.org.uk/signal/bellcodes.shtm bell codes website.

Bellcode repeater - using a PICchip or Arduino to repeated bell sequence.

https://www.dougrice.co.uk/www/wetString/bellcode/BellCodesTrimmed.htm - web page with javascript prototype

Block Instruments:

JavaScript? Simulator:- https://www.dougrice.co.uk/www/wetString/blockSignalling/signalling.htm

JavaScript? Simulator:- https://www.dougrice.co.uk/www/wetString/blockSignalling/signallingSound.htm - using Beeps for bells

https://wwwi.dougrice.co.uk/cgi-bin/wiki.pl?Bellcode_Repeater - Bell code repeater