Technobox 3673 PMC-to-PCI Adapter

The Technobox 3673 is a bridged PMC-to-PCI adapter that enables PCI Mezzanine Card (PMC) modules to operate within standard PCI-based systems. By performing active bus bridging between PMC and PCI interfaces, the 3673 maintains signal integrity at higher clock speeds and supports multiple adapter installations where passive alternatives would degrade performance. The adapter draws power directly from the PCI slot, with voltage levels dictated by the installed PMC module and host system (3.3 V or 5 V signaling). An integrated fan assembly provides active cooling for the mezzanine card.

– Technical Specifications

• Interface: PMC to PCI
• PCI Bus: 64-bit, 66 MHz
• Architecture: Active bridging between PMC and PCI buses
• Power Supply: Drawn from PCI slot; voltage determined by PMC module and host system
• Cooling: Integrated fan assembly
• I/O Connectivity: A and C rows of 96-pin DIN connector interface with 64-pin user I/O connector (J4/P4) on mezzanine card per IEEE 1386

– Key Features

• Active bus bridging maintains signal integrity at elevated clock speeds
• Suitable for configurations requiring multiple adapters or high-frequency operation
• Integrated thermal management via fan assembly
• Aluminum panel bracket (2.5 mm thick) with 0.5 mm chamfered edge
• Cost-optimized design omitting development-specific features (LEDs, clamping diodes, logic analyzer headers)
• PMC Side 1 not accessible for probing

– Compatibility & Integration

The 3673 accommodates PMC modules within a standard PCI slot, designed to fit short-length PCI boards. Installation in the endmost PCI slot position minimizes bus stubbing. Recommended for systems operating above passive adapter specifications or requiring more than two adapter installations in a single PCI segment.