Greenspring CPCI-200 Modules CPCI-200 W/ IP-OCTAL 485 MFIO-200 / IP-OPTO INTERRUPTER MFIO-200 0021-42777 PCB ASSY

Technical Dossier

Product Details And Specifications

Greenspring CPCI-200 Series Technical Notes

The Greenspring CPCI-200 series represents a mature, field-proven line of CompactPCI (cPCI) mezzanine I/O modules engineered for deterministic real-time control in heavy industrial environments. Deployed across chemical processing plants, petroleum refineries, nuclear power generation facilities, and defense-grade embedded computing platforms, the CPCI-200 architecture leverages the IP (Industry Pack) mezzanine standard to deliver modular, hot-swappable I/O expansion on a 3U or 6U CompactPCI carrier. The series has accumulated significant installed base in applications where long-term hardware availability, signal isolation, and bus-level reliability are non-negotiable requirements. DriveKNMS maintains active sourcing channels for both current-production and end-of-life CPCI-200 variants, including the CPCI-200 W/ IP-OCTAL 485 MFIO-200 and CPCI-200 W/ IP-OPTO INTERRUPTER MFIO-200 0021-42777 PCB ASSY.

The Evolution of CPCI-200 Architecture

The CPCI-200 platform was developed by Greenspring Computers (later acquired by Acromag) during the mid-1990s as the embedded computing industry transitioned from VMEbus to the CompactPCI standard defined by PICMG 2.0. The IP mezzanine standard (ANSI/VITA 4) underpins the CPCI-200 design, allowing a single carrier card to host up to four IP modules, each independently addressable over the cPCI backplane. Early revisions of the CPCI-200 supported 8-bit and 16-bit IP module interfaces; later PCB assembly revisions (including the 0021-42777 board revision documented here) introduced enhanced EMI shielding, revised power regulation circuitry, and improved thermal management for extended-temperature industrial deployments. As the cPCI standard matured into CompactPCI Serial (PICMG CPCI-S.0), the CPCI-200 series remained on the parallel cPCI bus, making backward compatibility with legacy IP modules its primary long-term value proposition. Systems integrators maintaining CPCI-200-based racks must account for the parallel-to-serial bus incompatibility when planning platform migrations. Acromag's XVME and BusWorks series represent the functional successors for new designs, but direct hardware replacement of installed CPCI-200 assemblies requires sourcing original or equivalent PCB assemblies.

CPCI-200 Full Catalog & Functionalities (SKU List)

The following SKUs represent verified models within the Greenspring / Acromag CPCI-200 ecosystem, classified by functional category. Each entry reflects a distinct hardware configuration or IP mezzanine pairing.

CompactPCI Carrier Cards

• CPCI-200: 3U CompactPCI carrier, hosts up to 2 IP modules, 32-bit/33 MHz cPCI bus interface.
• CPCI-400: 6U CompactPCI carrier, hosts up to 4 IP modules, extended I/O backplane access.
• CPCI-200-1: Single-slot 3U carrier variant with reduced IP slot count for space-constrained chassis.

Serial Communication Modules (RS-485 / RS-232 / Multi-Protocol)

• CPCI-200 W/ IP-OCTAL 485 MFIO-200: CPCI-200 carrier populated with IP-OCTAL 485 mezzanine; provides 8-channel RS-485 serial I/O with MFIO-200 interface logic, PCB assembly 0021-42777.
• IP-OCTAL 485: Standalone IP mezzanine, 8-port RS-485/422 serial controller, 16C654 UART, up to 460.8 kbaud per channel.
• IP-OCTAL 232: 8-port RS-232 serial IP mezzanine, compatible with CPCI-200 carrier, EIA-232 signal levels.
• IP-SERIAL: Dual-port multi-protocol serial IP module supporting RS-232/422/485 selectable per port.

Digital Input / Opto-Isolated Interrupt Modules

• CPCI-200 W/ IP-OPTO INTERRUPTER MFIO-200 0021-42777: CPCI-200 carrier with IP-OPTO INTERRUPTER mezzanine; opto-isolated digital interrupt inputs, MFIO-200 interface, PCB assembly revision 0021-42777.
• IP-OPTOIO-16: 16-channel opto-isolated digital I/O IP module, 24 VDC field side, compatible with CPCI-200 carrier.
• IP-OPTOIO-48: 48-channel opto-isolated digital I/O IP mezzanine, 3-port configuration, TTL-compatible logic side.
• IP-DIGITAL-48: 48-channel TTL digital I/O IP module, non-isolated, bidirectional port configuration.

Analog Input / Output Modules

• IP-DAC8: 8-channel 12-bit analog output IP mezzanine, ±10 V or 4–20 mA output range, compatible with CPCI-200.
• IP-ADC8: 8-channel 12-bit analog input IP module, single-ended or differential, 100 kSPS aggregate throughput.
• IP-ANALOG-16: 16-channel analog input IP mezzanine, 16-bit resolution, programmable gain amplifier.

Counter / Timer and Motion Modules

• IP-QUADRATURE: Dual-axis quadrature encoder input IP module, 32-bit counters, index pulse capture, for CPCI-200 carrier.
• IP-COUNTER-48: 48-bit event counter / timer IP mezzanine, 40 MHz clock input, compatible with CPCI-200 platform.

Communication Adapter Modules

• IP-CANBUS: Dual-port CAN bus IP mezzanine, ISO 11898-2, up to 1 Mbit/s, for CPCI-200 carrier integration.
• IP-ARCNET: ARCNET coax/twisted-pair IP module, legacy industrial network interface for CPCI-200 hosted systems.