O. Thompson Co. produced a comprehensive line of microprocessor-based traction elevator control systems widely installed across North America. The Thompson system architecture centers on the CPU2002 main processor board, supported by modular 8-channel and 16-channel I/O boards, a dedicated Car Station Board for floor call logic, and a Fuse Block board for protected power distribution.
The 16-Channel I/O board (M00399) uses a fiber optic communication link for noise-immune data transfer between the machine room and car. The 8-Channel I/O relay board provides isolated relay outputs using Takamisawa JY24H-K 24VDC relays, each with individual LED status indicators.
The Thompson Car Station Board (M00299 REV 1.2) is one of the most complex boards in the system, housing 80+ Omron/Nais blue relays and dual QFP processors to handle all car station button inputs and floor call assignments. The Keypad/LCD Display Board provides the operator interface for system programming and diagnostics.
Gemini Elevator Service stocks, sells, and repairs O. Thompson elevator control boards. With 40 years of experience, we can identify the right board for your system quickly. All units carry a 1-year warranty and ship nationwide from Hackensack, NJ.