VMIC VMIVME 5504 332-000165-000 Reflective Memory Repeater Board

Module Feature

VMIVME 5504 (Part Number:332-000165-000) is a single-slot 6U VMEbus reflective memory repeater module developed by VMIC,designed to extend the transmission distance of VMIC reflective memory parallel network and regenerate differential data signals. It works with VMIC 5500 / 5550 series parallel reflective memory nodes to expand system coverage,performs signal reshaping,amplification and clock recovery to eliminate signal attenuation and distortion on long parallel cables. It adopts VMEbus standard mechanical and electrical design,VME bus interface supports A16/A24/A32 addressing and D08/D16/D32 data transfer,operates as VME slave for configuration and status readback. Two high-speed differential parallel ports are deployed for in/out network daisy-chain connection. Built-in BIT diagnostic monitors link integrity,signal quality and backplane power,latches link fault status and drives front panel fault LED. Rugged Eurocard PCB with conformal coating,shock and vibration screened for power plant cabinet environment,widely used in gas/steam turbine distributed control network,aerospace multi-chassis HIL simulation,defense ground test bench and long-distance VME reflective memory interconnection chassis.

Working principle

The incoming parallel differential reflective memory data stream enters the repeater input port. Onboard high-speed differential receiver captures raw data and clock; signal regeneration circuit reshapes degraded waveform and recovers clock signal,then transmits clean differential data to next network segment through output port. VME host reads network health status and configures working mode via VME registers. BIT continuously monitors signal amplitude and link lock status,triggers fault flag when link loss occurs. VME FPGA completes address decoding and bidirectional status register handshake with VME backplane. ESD and surge protection circuits safeguard differential transceivers against field transient noise.

Onboard components

VME interface FPGA,32-bit parallel differential transceiver array,signal reshaping & clock recovery logic,BIT link monitoring circuit,status register bank,dual high-density parallel field connectors,VME J1/J2 edge connector,multi-status LED array.

LED indicators

Front panel LED indicators for link lock and module fault alarm.

Hardware self-diagnosis

Visual inspection of PCB,components and solder joints;board ID register readback verification;link continuity test;signal integrity loopback check;VME A32 read/write communication test.

Programming software

VMIC reflective memory driver library and configuration utility,supports VxWorks,Linux and QNX real-time operating systems;software tool for link status monitoring and fault log retrieval.

Electrical & Process Parameters

Model: VMIVME 5504 332-000165-000 Brand: VMIC Device type: 6U VMEbus reflective memory parallel repeater module Bus standard: VMEbus, A16/A24/A32 addressing, D08/D16/D32 data transfer Network interface: Dual 32-bit differential parallel reflective memory ports Function: Signal regeneration,clock recovery,network distance extension Control mode: VME slave access,real-time BIT link monitoring,ESD & surge protection Power supply: +5 V from VME backplane Cooling: Convection cooling Protection: Differential port ESD protection,surge clamping,link loss fault reporting 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℃ ~ +70℃ Storage temperature:-40℃ ~ +85℃ Ambient humidity:20~80% non-condensing Certification: CE compliant Status: VMIC 6U VME reflective memory parallel signal repeater board

Installation

Follow ESD safety procedure before handling.Fully power off VME chassis.Insert VMIVME 5504 332-000165-000 into vacant 6U VME slot and lock front panel ejector latches.Connect parallel reflective memory cables to front dual field ports for daisy-chain topology.Power on chassis,load VMIC RFM driver,run BIT link diagnostic before commissioning.

Interface

VME J1/J2 backplane connector,front-panel dual high-density parallel RFM connectors,fault status register pins.

Diagnostic

Board undetected: poor VME backplane contact,damaged edge connector or incorrect address jumper setting. Link loss alarm: loose parallel cable,pair skew mismatch or transceiver hardware fault. Intermittent data error: cable length exceeds limit or inadequate shielding. BIT fault triggered: abnormal power rail or clock recovery circuit failure.

Product Brief

VMIC VMIVME 5504 332-000165-000 single height 6U VME reflective memory repeater board,32-bit parallel differential signal regeneration and clock recovery,extends parallel RFM network distance for multi-chassis turbine control and aerospace hardware-in-loop simulation systems.