SCHROFF 3BSC690076R5 Industrial grade VME64x standard backplate
Specific Parameters
Electrical Parameters
Bus Type: Compatible with VME64x, VME32 standards, supporting VMEbus Revision C specificationSlot Quantity: 16 standard VMEbus slots, including 1 system slot (J1/J2/J3 connectors) and 15 expansion slotsTransmission Rate: 40MB/s in 32-bit mode, 80MB/s in 64-bit mode, supporting Block Transfer (BLT) and Multi-Block Transfer (MBLT)Power Supply Specifications: Supports redundant power supply of +5V DC (30A), ±12V DC (10A/slot), +3.3V DC (15A), power ripple ≤50mVBus Termination: Each slot has a built-in 75Ω terminating resistor, supporting automatic bus impedance matchingInsulation Performance: Inter-slot insulation resistance ≥100MΩ, withstanding voltage ≥2500V AC (no breakdown for 1 minute)Protection Functions: Integrated overcurrent protection (single-slot current limit 15A), overvoltage protection (threshold +5.5V/±13.2V), reverse connection protection
Mechanical Parameters
Overall Dimensions: 482.6mm (W, 19-inch standard) × 260mm (H) × 120mm (D), compatible with 1U/2U standard chassisWeight: Approximately 3.8kg, all-metal structure ensures mechanical strengthMounting Method: 19-inch rack-mounted installation, compatible with SCHROFF 8000/9000 series chassis, supporting front and rear fixingHousing Material: Cold-rolled steel plate (surface electrophoretic anti-rust treatment), slot connectors are gold-plated phosphor bronzeConnector Specifications: Each slot is equipped with J1 (96-pin), J2 (96-pin), J3 (64-pin) standard VME connectors, plug-in life ≥1000 timesHeat Dissipation Design: Reserved heat dissipation air ducts on the backplane, supporting combination of forced air cooling and natural heat dissipation
Environmental Parameters
Operating Temperature: -40℃ to +85℃ (no performance attenuation in full temperature range)Storage Temperature: -55℃ to +100℃, meeting extreme storage and transportation requirementsRelative Humidity: 5% to 95% (non-condensing), adapting to high-humidity industrial scenariosProtection Rating: IP20 (backplane itself, relying on overall chassis protection)Vibration Resistance: 10-500Hz frequency range, 2g acceleration (sine wave), 60 minutes of continuous testing per axis without poor contactEMC Compliance: Meets EN 55022 Class A (emission limits) and EN 55024 (immunity) standards, bus signal anti-interference ≥120dBCertifications: CE (EMC/Low Voltage Directive), UL 60950-1 (safety of information technology equipment), RoHS 2.0 compliance
Product Performance
Stable bus transmission: The transmission bit error rate is ≤10⁻⁹ under full load of 16 slots, supporting long-term continuous block transmission without packet loss, meeting the needs of large-scale data interactionHigh power supply reliability: Redundant power distribution design enables seamless switching of dual power supplies, and module operation is not affected when a single power supply fails, with a Mean Time Between Failures (MTBF) of ≥300,000 hoursWide compatibility: Fully compatible with VME64x standard modules (such as SCHROFF’s own I/O modules, third-party CPU modules), supporting plug-and-play without custom adaptationExcellent structural strength: Cold-rolled steel plate material and reinforced fixing design can resist vibration and impact in industrial sites; gold-plated slot connectors ensure contact resistance ≤10mΩ, with no performance attenuation after long-term plugging and unpluggingStrong environmental adaptability: No delay in low-temperature startup at -40℃, and power supply ripple is still controlled within 50mV at high temperature of +85℃, adapting to extreme working conditions such as deserts and alpine regionsConvenient maintenance: Built-in status indicators (power/bus status) in slots, supporting module hot swapping (with hot-swappable modules required), fault location time ≤10 minutes
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