REFORM BICC-VERO VMEbus Extender Card

The BICC-VERO VMEbus Extender, also cataloged as the VMEbus Extender / Backplane, operates as a dedicated hardware component for circuit board debugging, signal prototyping, and physical module depth extension within VME-based systems.

Hardware Specifications

Industrial Control and Drive Architecture

• Backplane Bus Communication Velocity The extender card preserves backplane bus communication velocity across extended physical distances by utilizing a high-performance stripline engineering layout. This trace layout minimizes distributed capacitance and inductive loading, keeping propagation delays and signal skew within VMEbus timing tolerances during high-frequency parallel data transfers.
• Profinet / EtherNet/IP Deterministic Networks Dedicated outer ground planes function as integrated shielding barriers to maintain the stability of industrial bridge cards and network processors plugged into the extender. This mechanical layout suppresses cross-talk and high-frequency external noise, protecting deterministic communications and physical interface connections from signal integrity degradation during hardware testing.
• I/O Density Scaling and Card-Cage Flex The extender allows boards of different depths to operate simultaneously outside the physical confines of the standard card cage. This architecture maximizes I/O scaling validation options by allowing test technicians to access and measure high-density field bus couplers and processor modules without crowding active subrack layouts.
• Firmware Flash Compatibility and Debug Integrity Hardwired test points for all pins on the J1 and J2 connectors allow logic analyzers and oscilloscopes to monitor live system bus operations. This direct physical access allows engineers to trace runtime anomalies, evaluate bus arbitration cycles, and debug firmware flash code loading routines in real time without introducing data truncation or signal reflection.

Frequently Asked Questions

Q: Does the BICC-VERO VMEbus extender introduce signal reflection errors on high-speed J1/J2 lines?

A: No. The high-performance stripline construction matches the characteristic impedance parameters of the native VME backplane bus. This controlled trace environment suppresses signal reflections and ringback waves across extended tracking lines, allowing clean bus arbitration during active testing cycles.

Q: Can testing tools be attached to the J1 and J2 test points while the VME chassis is fully powered?

A: Yes. The individual test points are structurally isolated and mapped to correspond directly to specific connector pins. Technicians can connect logic analyzer clips or oscilloscope probes under power, provided standard static-dissipative and short-circuit prevention procedures are maintained.