Description

BVM PMC-CF2 Dual CompactFlash PMC Storage Module

Basic Technical Specifications

• Model: PMC-CF2
• Manufacturer: BVM Ltd (UK, professional embedded PMC mezzanine card manufacturer)
• Form Factor: Single-width 32-bit PMC card (IEEE P1386.1 standard), standard PMC mechanical outline
• Bus Interface: PCI 2.2 compliant, 33MHz 32-bit PCI bus, supports 3.3V/5V dual PCI signaling voltage
• Operating Temperature: Standard version 0°C ~ +70°C; extended temperature version -40°C ~ +85°C
• Storage Temperature: -40°C ~ +85°C
• Protection Class: IP20, for internal rack/chassis embedded installation only
• Board Dimensions: 149mm × 74mm standard single PMC size

Core Storage Parameters

1. Dual independent CF card slots (CF2 = 2 CompactFlash sockets)
   • Two fully isolated IDE-mode CompactFlash Type I/II slots
   • Supports industrial-grade SLC/MLC CF cards, capacity from 16MB up to 64GB
   • Each CF channel has independent chip select and interrupt control
2. Onboard Control & Reliability Circuit
   • Integrated IDE bridge controller with hardware write-protect jumper for each slot
   • LED status indicators for power, CF card detection, read/write activity
   • ESD, surge and reverse voltage protection on CF data bus
3. I/O Wiring Method
   • Front panel direct CF card insertion (easy on-site card replacement)
   • Optional P14 rear I/O routing for fully enclosed sealed chassis deployment
4. System Compatibility
   • Works with VMEbus, CompactPCI, cPCI Serial, VPX embedded CPU boards with PMC expansion slots
   • Supported OS: VxWorks, QNX, Linux, Windows Embedded, RTOS real-time operating systems
   • 

Product Overview

The BVM PMC-CF2 is an industrial embedded mezzanine storage expansion card designed for rugged real-time control computers, featuring two independent CompactFlash slots on a single standard PMC module. It is the direct matching storage accessory for the TEWS TPMC917 series PMC cards you previously queried, widely deployed together in legacy turbomachinery governor systems, DCS/SIS safety control cabinets, offshore platform embedded data recorders and railway on-board vehicle control units.

CompactFlash serves as solid-state non-volatile storage with zero moving parts, far superior to mechanical hard drives in shock, vibration and temperature resistance. The dual-slot design enables flexible deployment modes: one slot for main operating system and application firmware, the second for fault event logs, runtime parameter databases, historical trend data and equipment cumulative operating counters; alternatively configured as primary/backup redundant storage for critical safety systems to avoid single storage point failure.

The hardware write lock function prevents accidental overwriting of core control program files during field maintenance. With passive cooling design and industrial-grade PCB assembly, it delivers long-term 24/7 unattended continuous operation in high-interference environments filled with inverters, high-current contactors and power harmonic noise. Although BVM has phased out this classic PMC storage product, it remains an indispensable spare part for maintaining a large number of legacy embedded industrial control platforms worldwide.