The Ramix PMC661J is a single-slot PMC (PCI Mezzanine Card) carrier board designed for VMEbus systems. It allows one standard PMC module to be integrated into a VME chassis, providing high-performance I/O expansion for industrial control, data acquisition, and defense applications. The board supports conduction-cooled and air-cooled PMC modules with front panel I/O access.
Form Factor: 6U VME (single slot)
PMC Slots: 1 (supports 64-bit PMC modules)
PCI Bus: 33 MHz, 32/64-bit, 3.3V or 5V (universal)
VME Interface: VME64 compliant (A16/A24/A32, D08/D16/D32/D64)
Front Panel I/O: Direct pass-through from PMC to front panel
Rear I/O (P2): User-defined I/O mapping (optional)
Cooling Options: Air-cooled (standard) or conduction-cooled (conformal coating)
Operating Temperature: -40°C to +85°C (conduction-cooled version)
Power Supply: From VME backplane (+5V, +3.3V, ±12V)
Dimensions: 233 × 160 mm (6U)
Compliance: IEEE 1386.1 (PMC standard), VITA 20 (conduction cooling)

The PMC661J provides a bridge between the VMEbus and the PMC local bus, allowing a wide variety of PMC modules—such as Gigabit Ethernet, frame grabbers, serial I/O, or FPGA cards—to be used in VME systems. The board includes programmable address decoders and interrupt handlers to map PMC resources into VME address space. Front panel I/O is directly routed from the PMC module, preserving high-speed signal integrity. An optional rear I/O transition module (P2) can route signals to the backplane for custom wiring.
The PMC661J is available in both air-cooled and conduction-cooled versions. The conduction-cooled variant is coated with a thermal transfer material and uses a wedge-lock retention mechanism for secure mounting in high-vibration environments. The board meets MIL-STD-810G for shock and vibration and MIL-STD-461 for EMI/EMC, making it suitable for military and aerospace applications.
This carrier board is used in radar systems, telecommunication infrastructure, industrial automation, and medical imaging equipment. It enables legacy VME systems to leverage modern PMC I/O modules, extending the life of existing installations while adding new functionality.



