RT2 High-Speed Backplane Connector

 The RT2 series high-speed backplane connector enables high-speed data transmission between backplanes, achieving a transmission rate of 6.25Gb/s, expandable to 10Gb/s. It is an important interface for the VME bus system. The VME bus, designed in 1981 by companies like Motorola for Euroboards, supports the backplane architecture standard for multiprocessor computer systems, with bandwidth increasing from the initial 40Mb/s to 320Mb/s. With the rapid development of communication technology, to meet the higher bandwidth requirements of VME bus inter-board data transmission, the VSO organization under VITA (VITA International Trade Organization Association) developed and launched new standards, primarily VITA41, VITA46, and VITA48. All three standards are based on the RT2 connector. The increased bandwidth has led to the gradual adoption of the WE bus in radar, image processing, and broadband communication fields.
VITA41 (also known as VXS, short for VMEbus Switched Serial) is a switchable serial extension standard. It adds structural technology to the traditional VME bus, replacing the P0/J0 connectors of the original WE module with RT2 connectors, thus increasing the data bus transmission bandwidth. VITA46, also known as VPX (Versatile Protocol Switching), replaces all connectors with RT2 connectors that support high-speed differential signal transmission, thereby achieving higher transmission speeds and more signal pins to meet user bandwidth requirements. VITA48, short for Enhanced and Rugged Design Mechanical Specification, supplements VITA46 in terms of module structure, ruggedized cooling, and other aspects, enabling it to meet the requirements of harsh military environments such as airborne applications, including those requiring resistance to shock, vibration, temperature, and altitude.

Product Overview
● Compliant with VITA41/VITA46/48 standards, for VME bus systems
● High-density, high-speed, modular, and universal connectors
● Modular design allows for integrated transmission of differential, single-ended, and power signals
● Transmission rate up to 6.25Gbps, expandable to 10Gbps
● 32 differential pairs per module, node density up to 113/inch (56 pairs/inch)
● Press-fit termination, no soldering required

Key Technical Specifications
Mechanical Performance
● Mechanical Life: 500 cycles of insertion/removal
● Shock: 294 m/s², half-sine wave, 11 ms
● Random Vibration: 10–2000 Hz, power spectral density 0.2 g²/Hz
● Sine Vibration: 10–2000 Hz, 20 g
Supported Communication Protocols
● 1000BASE-KX
● 10GBASE-KX4
● InfiniBand SDR, DDR, and QDR
● PCIe Gen 1, 2, and 3
● Serial RapidIO 2.5, 3.125, 5, and 6.25 Gbaud
Electrical Performance
● Low-Level Contact Resistance: ≤40 mΩ
● Rated Current: 8 A for single power supply, 1 A for single signal
● Insulation Resistance: Power contacts ≥10000 MΩ,
                     Signal contacts ≥1000 MΩ
● Withstand Voltage: 500 V
● Differential Characteristic Impedance: 100 Ω
● Transmission rate: 6.25Gbps
● Crosstalk: Better than -30dB
environmental performance
● Operating temperature: -55℃～+125℃
● Salt spray: 48h
● Flame retardant rating: UL94 V-0