SSI is an application which enables a PC computer to control the operation of a model railway layout through hardware connected to the communications port.

SSI uses the MRAPI middle ware product to provide the actual hardware communications.

SSI replaces a conventional control panel with a computer screen, providing significant levels of functionality that would otherwise require complex wiring. It does not drive trains.

SSI uses the signalman centric (signalman tells trains what to do, driver drives according to signals) rather than driver centric (driver drives trains and system changes signals depending on where he is) paradigm.

Here are some key features of "SSI Model Railway Control System":

· Network or standalone operation - using peer to peer and no servers
· Multiple profiles, panels and timetables on different workstations or the same workstation
· Multi-screen support (extended desktops)
· Loco Decoder programming support - including graphical setting of speed curves
· Train describer functionality
· Ability to create your own graphic and colour sets
· Networked clock (including fast operation)
· Improved timetabling
· Separate Layout Designer and Layout Operator applications
· Significantly upgraded layout design tools
· Indication of out-of-correspondence devices
· Even better performance
· Import facility for layout files from previous versions
· Backwards compatible with previous versions