Modular Signaling System Debugger
As a debugger for the Modular Signal System, the MSS-DEBUG monitors signals on the occupancy bus as well as sends occupancy signals to test installations. It's useful for bench testing signal installations on a module when no larger MSS network is available, or for figuring out why an MSS installation isn't working correctly. The MSS-DEBUG requires 3x AAA batteries to provide operating power and includes a 1' straight-through ethernet cable for attaching it to an adjacent MSS node.
- Diagnostic LEDs indicate status of MSS signal lines:
- Local Block Occupancy
- Approach Occupancy In (to node)
- Advance Approach Occupancy In (to node)
- Advance Occupancy Out (from node)
- Advance Approach Occupancy Out (from node)
- Diverging Approach In/Out (to/from node)
- Switches for toggling each signal line to test module response
- 12V bus pull-up voltage for testing bus segments without pull-ups (e.g. MSS-CROSSOVER module)
- Compliant with the Modular Signal System 2.0.1 standard
- Powered from 3x AAA batteries
3.25"(L) x 1.9"(W)
Many thanks to Gregg Fuhriman and other contributors for the development and release of the Modular Signal System specification.
The complete gEDA design files are available on GitHub.
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