VMIC VMIPCI-5588 Reflective Memory Board

Module Feature

VMIPCI-5588 is a standard PCI bus fiber-optic reflective memory node board developed by VMIC,fully interoperable with VMIC 5565 / 5576 / 5530M series RFM nodes,building mixed PCI / VME / PMC fiber ring network. It adopts 32-bit 33 MHz PCI interface,onboard configurable reflective memory 1 MB,equipped with 512-word transfer FIFO buffer. Serial fiber baud rate reaches 1.2 Gbaud;effective throughput is 29.5 Mbyte/s under non-redundant mode and 14.8 Mbyte/s with redundant error protection. Single-mode fiber supports max node distance up to 10000 m,multimode fiber max distance 300 m. When host PC writes data to local onboard memory,dedicated hardware automatically replicates data to all other ring nodes without TCP/IP protocol overhead. Programmable cross-node interrupt supports event synchronization between distributed computers. Built-in BIT diagnostic continuously monitors optical receive power,signal lock and PCI bus health status,latches fault flag for software readback. Fiber link provides full galvanic isolation and strong EMI suppression. Rugged PCB with conformal coating,shock and vibration screened for power plant cabinet environment,widely used in gas/steam turbine distributed control,hardware-in-loop real-time simulation,aerospace flight test and industrial distributed data acquisition systems.

Working principle

PCI host writes data into local reflective memory. Onboard RFM controller captures write transaction,serializes data and transmits optical signal to all nodes on fiber ring. Hardware on every remote node automatically refreshes local shared memory copy. Cross-node interrupt channel sends trigger signal across fiber for time-critical event notification. BIT circuit detects optical power loss and CRC error to judge link integrity. PCI FPGA completes bus address decoding and bidirectional data handshake between PCI host and onboard memory bank.

Onboard components

PCI interface FPGA,reflective memory controller,1 MB SRAM bank,1.2 Gbaud ST duplex fiber transceiver,FIFO buffer array,CRC error detection logic,cross-node interrupt circuit,nonvolatile EEPROM for node ID storage,PCI gold finger edge connector,front-panel ST fiber ports,multi-status LED array.

LED indicators

Front panel LED indicators for board power,fiber link lock,network activity and communication fault alarm.

Hardware self-diagnosis

Visual inspection of PCB,components and solder joints;board ID register readback verification;onboard SRAM full read/write test;fiber ring throughput test;remote interrupt trigger verification;PCI bus communication test.

Programming software

VMIC reflective memory driver library and configuration utility,supports VxWorks,Linux and QNX real-time operating systems;software tool for memory mapping,unique node ID assignment,interrupt configuration and fault log reading.

Electrical & Process Parameters

Model: VMIPCI-5588 Brand: VMIC Device type: Standard PCI bus fiber optic reflective memory module Bus standard: 32 bit /33 MHz PCI Onboard SRAM:1 MB Max nodes per ring:256 Fiber baud rate:1.2 Gbaud Throughput:29.5 Mbyte/s(non-redundant),14.8 Mbyte/s(redundant) Max fiber distance:Single-mode fiber up to 10000 m,multimode fiber up to 300 m Control mode: Hardware automatic memory replication,cross-node interrupt,BIT built-in self-test,galvanic fiber isolation Power supply: Powered by PCI slot Power consumption: 7 W typical Cooling: Convection cooling Protection: CRC error checking,overcurrent protection,ESD protection,optical over-power protection Mounting: Standard full-height PCI bracket installation Protection class: PCB with optional conformal coating

Mechanical & Structure

Mounting: Standard full-height PCI board Protection class: PCB with optional conformal coating

Environmental

Operating temperature:0℃ ~ +65℃ Storage temperature:-40℃ ~ +85℃ Ambient humidity:20~80% non-condensing Certification: CE compliant Status: VMIC PCI fiber reflective memory board

Installation

Follow ESD safety procedure before handling.Fully power off industrial PC.Insert VMIPCI-5588 into vacant PCI slot and secure bracket screw.Connect duplex ST fiber cable to build ring topology.Assign unique node ID for each RFM node.Power on PC,install VMIC RFM driver,run BIT fiber diagnostic before commissioning.

Interface

PCI edge connector,front-panel duplex ST fiber port,interrupt and fault status register pins.

Diagnostic

Board undetected: PCI slot contact failure,incorrect BIOS resource allocation or damaged gold finger. No fiber lock: reversed TX/RX fiber wiring,low optical input power or transceiver fault. Cross-node data mismatch: duplicate node ID or broken fiber cable. Remote interrupt failure: interrupt vector misconfiguration in driver.

Product Brief

VMIC VMIPCI-5588 full height PCI fiber reflective memory board,1.2 Gbaud ST fiber,low latency hardware shared memory replication,supports mixed PCI/VME multi-node network,for gas/steam turbine distributed control and hardware-in-loop simulation real-time systems.