VMIC VMIVME-7455 Optical Storage Module

Module Feature

VMIVME-7455 is a single-slot 6U VMEbus optical storage board developed by VMIC (GE Fanuc / Abaco Systems). It integrates slim-line ATAPI/IDE CD-ROM drive inside standard 6U VME card frame,fits into one single VME slot for embedded VME system boot,firmware upgrade and program data loading. The CD-ROM supports CAV rotation mode,continuous read speed ranges from 1548 KB/s to 3600 KB/s,burst transfer speed reaches 16.7 MB/s,typical random access time 130 ms. The board acts as VME slave device,communicates with VME CPU board via VME bus,optical drive control signals routed through VME P2 rear connector. Front panel fitted with CD eject button and activity LED indicator. Built-in BIT diagnostic circuit monitors drive power,media presence and read error status,fault information can be retrieved from VME status register. Rugged Eurocard PCB with conformal coating,shock and vibration screened for power plant cabinet environment,widely used in gas/steam turbine VME control chassis firmware update,aerospace ground test bench and hardware-in-loop real-time simulation VME chassis.

Working principle

VME host controller sends ATAPI IDE read/write commands to VMIVME-7455 over VME bus. Onboard interface FPGA converts VME bus protocol to standard IDE ATAPI signal to operate the CD-ROM optical drive. Optical data is buffered on board and transmitted back to VME CPU. BIT circuit continuously monitors drive power supply and media read errors, and updates activity LED and fault status register.

Onboard components

VME interface FPGA,slim ATAPI IDE CD-ROM unit,IDE control register,data buffer,media presence detection circuit,BIT health monitoring logic,VME J1/J2 edge connector,P2 rear signal connector,front-panel CD eject button and activity LED.

LED indicators

Front panel LED indicators for optical drive read activity and module fault alarm.

Hardware self-diagnosis

Visual inspection of PCB,components and solder joints;board ID register readback verification;media presence detection test;CD read access test;VME A16 register read/write communication validation.

Programming software

VMIC optical storage driver library and configuration utility,supports VxWorks,Linux and QNX real-time operating systems;software tool for media mounting,CD data reading and BIT error log reading.

Electrical & Process Parameters

Model: VMIVME-7455 Brand: VMIC Device type: 6U VMEbus IDE ATAPI CD-ROM optical storage module Bus standard: VMEbus, A16 short addressing, D08/D16/D32 data transfer Drive type:Slim ATAPI IDE CD-ROM Transfer speed:1548 ~ 3600 KB/s sustained,16.7 MB/s burst Access time:130 ms typical Control mode: VME slave access,onboard slim CD carrier,media presence detection,BIT health monitoring,overcurrent protection Power supply: +5 V from VME backplane,600 mA max full load Cooling: Convection cooling Protection: Overcurrent cutoff for optical drive power Mounting: Standard single-height 6U VME front panel ejector locking Protection class: PCB with optional conformal coating

Mechanical & Structure

Mounting: Single-slot 6U VME Eurocard Protection class: PCB with optional conformal coating

Environmental

Operating temperature:0℃ ~ +50℃ Storage temperature:-40℃ ~ +85℃ Ambient humidity:20~80% non-condensing Certification: CE compliant Status: VMIC 6U VME single-slot IDE ATAPI CD-ROM optical storage board

Installation

Follow ESD safety procedure before handling.Fully power off VME chassis.Insert VMIVME-7455 into vacant 6U VME slot and lock front panel ejector latches.Insert CD media through front panel slot.Power on chassis,load VMIC storage driver,run BIT media detection diagnostic before commissioning.

Interface

VME J1/J2 backplane connector,P2 rear IDE signal pins,CD eject button,activity and fault status register pins.

Diagnostic

Board undetected: poor VME backplane contact,damaged edge connector or incorrect A16 address setting. Media not detected: CD disc damage or P2 connector pin poor contact. CD read failure: optical lens contamination or IDE controller hardware fault. Fault LED lit: drive overcurrent or power rail abnormality.

Product Brief

VMIC VMIVME-7455 single height 6U VME optical storage module,with integrated slim IDE ATAPI CD-ROM drive and BIT media health monitoring,provides removable optical media interface for VME system firmware loading and aerospace hardware-in-loop simulation VME racks.