With 12VDC regulator:
quantity 1-9: $34.00 each
quantity 10-19: $27.00 each
quantity 20-39: $25.00 each
quantity 40+: $23.50 each
The Occupancy Bus Utility Board, or OBUB, simplifies installation of the Modular Signal System (MSS)
into your module or layout by integrating all the MSS-specific wiring into a printed circuit board.
Modular Signal System
Occupancy Bus Utility Board 3 (OBUB-3)
This kit includes a bare board and through-hole
components, requiring only basic soldering skills.
Complete instructions include assembly,
installation, configuration, and connection
diagrams for MSS Crossover and Cascade
OBUB-3 Bare Board
The OBUB-3 bare board by itself - you purchase the through-hole
components separately following the included parts list.
Complete instructions include assembly, installation, configuration,
and connection diagrams for MSS Crossover and Cascade
* Fully compliant to the new V2.0 Modular Signal System Standard
* DIP switches configure the OBUB-3 as MSS Crossover Node or MSS Cascade Node
* RJ45 jacks for direct plug-in of CAT5 network cables used in the MSS
* Screw terminals to connect external detectors and signal drivers (not included)
* Supports diodes for isolating MSS occupancy wires
* optional 12VDC rectifier/regulator to power external MSS electronics
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Thanks for your interest in Scale Nature Company!
- Gregg Fuhriman, proprietor -
Without 12VDC regulator:
quantity 1-9: $29.00 each
quantity 10-19: $23.00 each
quantity 20-39: $20.50 each
quantity 40+: $19.50 each
OBUB-3 Bare Board
Scale Nature Company
Innovations for scale model railroading