The Motorola 188987-008R and 188987-008R001 are part numbers for industrial electronic components, likely printed circuit boards (PCBs) or modules from Motorola’s legacy product lines. Motorola’s industrial and embedded systems division (now often associated with Curtiss-Wright after acquisitions) produced components for rugged applications such as aerospace, defense, and industrial control.
Part Number Structure Analysis
- The base number 188987 suggests a specific product family or platform.
- The suffixes -008R and -008R001 likely indicate revisions or variants (e.g., R001 could be a minor update to the original R version).
- In Motorola/Curtiss-Wright’s legacy systems, such part numbers are common for VMEbus, cPCI, or custom industrial boards.
Possible Functions
- Communication Modules: May serve as serial interface boards, Ethernet controllers, or protocol converters (e.g., for RS-232/422/485, CAN bus, or legacy telecommunication protocols).
- I/O Expansion Boards: Could include analog/digital I/O channels for data acquisition in test equipment or control systems.
- Power Supply or Backplane Components: Less likely, but possible if the part relates to power conditioning in rack-mounted systems.
- Aerospace/Defense Components: Given Motorola’s history in military electronics, these could be ruggedized boards for avionics, radar systems, or missile guidance.
Technical Context Clues
- If associated with VMEbus systems (e.g., MVME16x series), these might be companion boards for Motorola’s single-board computers (SBCs), providing additional connectivity or processing power.
- For cPCI (CompactPCI) systems, they could be part of modular industrial computers used in harsh environments.
- Legacy Status: Motorola divested its embedded computing business to Curtiss-Wright in 2009, and many older part numbers are not directly searchable on modern websites.
- Lack of Public Datasheets: Detailed specifications for legacy defense/aerospace components may be restricted or available only through official channels.
- Variant Differences: The “R001” suffix might denote a minor change (e.g., component tolerance, manufacturing batch) without altering core functionality.
Curtiss-Wright Heritage Support
- Contact Curtiss-Wright’s Defense Solutions group and provide the full part numbers. They may have archived documentation or be able to identify the component’s role in legacy systems.
- Website: Curtiss-Wright Industrial Solutions.
Third-Party Industrial Suppliers
- Search for the part numbers on platforms like Apex Waves, Industrial Ethernet Book, or ** eBay** (for used components), where sellers might list specifications or compatible systems.
Cross-Reference with Motorola MVME Series
- If the part is related to VMEbus systems, check manuals for MVME162, MVME5100, or similar SBCs to see if 188987-008R is a listed companion module (e.g., PMC card, daughter board).
If 188987-008R is a VMEbus Serial Interface Module:
- Specifications:
- 4 × RS-232/422/485 ports with 16550 UART compatibility.
- Supports baud rates up to 230.4 kbps.
- Interrupt-driven operation for real-time systems.
- Applications:
- Connecting legacy sensors (e.g., GPS, inertial measurement units) to a VME-based avionics computer.
- Data logging in industrial machinery using Modbus RTU protocol.
