The SBX-C186 is a high-integration microprocessor expansion board developed by RLC Enterprises, based on the Intel 80C186 architecture. Designed as an iSBX multimodule compatible board, it serves as a powerful localized controller for legacy industrial computing systems. The Rev-A1 hardware revision features a robust layout designed for embedded control, providing significant computational offloading from the main system bus for real-time task management.

Product Specifications Model Number: SBX-C186 Revision: Rev-A1 Processor: Intel 80C186 (16-bit High-Integration Microprocessor) Bus Interface: iSBX (IEEE 705) Multimodule Connector Memory: Onboard EPROM/RAM sockets for local firmware and data storage Timers: Three internal 16-bit programmable timers Interrupts: Integrated interrupt controller with 6 external channels

Dimensions and Physical Attributes Width: 9.5 cm Length: 7.2 cm Height: 1.5 cm Weight: 0.12 kg Country of Origin: USA

Application Fields The SBX-C186 is specialized for high-speed I/O control and localized data processing. It is frequently utilized in specialized telecommunications equipment, CNC machine tools, and legacy automated testing systems. Its compact iSBX form factor allows it to be mounted directly onto Multibus or VME carrier boards to add intelligent processing capabilities without consuming additional backplane slots.

Product Usage Instructions To install the , align the female iSBX connector on the Rev-A1 board with the male pins on the host carrier board. Gently press down until the board is seated firmly and secure it using the appropriate mounting standoffs to prevent vibration-related disconnects. Ensure that any onboard jumpers for memory addressing or interrupt levels are configured to match the host system’s resource map. Programming typically involves cross-compiling code for the 80186 instruction set and burning the resulting binary into the onboard EPROM sockets.

Frequently Asked Questions Q&A Q: Can I use this board with a standard PC? A: No, the SBX-C186 is designed for industrial systems featuring an iSBX (Small Board Expansion) interface, which is different from standard PC PCIe or ISA slots.

Q: What is the benefit of the Rev-A1 revision? A: The Rev-A1 revision includes optimized trace routing for reduced noise and improved compatibility with high-speed 80C186 variants used in late-cycle industrial designs.

Q: Does the board require its own power supply? A: No, it draws its required power (+5V and ±12V as per iSBX standards) directly from the host carrier board through the multimodule connector.

Related Product News RLC Enterprises has a long-standing reputation for supporting embedded systems that require long-term availability. While the SBX-C186 is considered a legacy component, it remains in demand for “life-extension” projects in the aerospace and defense sectors, where recertifying entirely new hardware is cost-prohibitive. Recent supply chain efforts have focused on sourcing high-reliability Intel 80C186 components to maintain a steady inventory of Rev-A1 boards for maintenance and repair operations (MRO) globally.

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