Curtiss-Wright / Systran VLX2500 VME Crossbar Switch Module

The Curtiss-Wright/Systran VLX2500 is a managed, non-blocking crossbar switch module designed for high-speed digital signal routing in VME-based systems. Operating as an 8-port switch on a single 6U VME 64X card, it scales to 16 ports with an optional expansion module. The VLX2500 delivers up to 3.2 Gbps per port with 25.6 Gbps total fabric bandwidth, supporting data rates from 65 Mbps to 3.2 Gbps. SFP transceiver modules provide flexible connectivity across multiple signal types and protocols without altering data structure or impacting throughput.

Technical Specifications

Switching Fabric: Managed, non-blocking cross-point switch, VME 64X, 6U form factor

Port Configuration: 8 ports (base); 16 ports (with expansion card)

Total Bandwidth: 25.6 Gbps (base); 51.2 Gbps (with expansion)

Per-Port Bandwidth: Up to 3.2 Gbps

Data Rate Range: 65 Mbps to 3.2 Gbps

Port Interface: Small Form-Factor Pluggable (SFP) transceiver modules

Data Retiming: Optional per-port input retiming or bypass

Clock Reconditioning: Optional jitter reduction on input ports

Key Features

Protocol-transparent routing - any digital signal structure passes unaltered

Point-to-Point (full/half duplex), multicast (1-to-many), loop, and arbitrated loop topologies

Dual form factors: 6U VME card or 1U rackmount configuration

Ruggedized variants for harsh environments; conformal coating available

Dual control interfaces: RS-232 CLI or VMEbus configuration

Configurable status display and fault isolation via command line

Typical Applications High-speed digital signal distribution in defense, aerospace, test instrumentation, and signal processing systems requiring flexible, protocol-agnostic routing across multiple data rates and formats.

Compatibility & Integration Integrates into VME 64X backplanes. Control via RS-232 Command Line Interface or direct VMEbus access. Supports mixed-rate environments through SFP module flexibility.