Product Details

The XYCOM XVME-202 is a discontinued single-height 3U VMEbus PAMUX interface module, designed for XYCOM legacy VME control racks and distributed industrial automation systems. This module acts as a dedicated communication bridge between the VME master CPU and remote PAMUX I/O subsystems, handling data transmission, address management and command distribution for distributed field I/O points. It supports connection with up to 16 PAMUX slave units, and the total expandable I/O capacity reaches 512 discrete points, which greatly extends the control coverage of the VME host system. It adopts a 50-conductor flat cable for connection, with a maximum transmission distance of 500 feet, and integrates on-board termination resistors to simplify long-distance wiring and maintain signal integrity. The board follows VMEbus IEEE 1014 standard, operating as an odd-byte-only VME slave, occupying 1K short I/O address space. It can send global reset signals to all connected PAMUX modules during system startup or fault reset, ensuring synchronized initialization of the whole distributed I/O network. Built-in noise filtering and transient suppression circuits reduce electromagnetic interference from inverters and servo drives on site, stabilizing long-distance communication signals. Users can configure base address and address modifier code via on-board jumpers to avoid address conflicts with other VME modules installed in the same rack. The front panel is equipped with LED indicators for power status and bus communication activity, helping maintenance technicians quickly check power failure, communication interruption and wiring faults during commissioning and routine inspection. The PCB adopts industrial-grade electronic components and EMC protection design, which can resist vibration, dust and temperature fluctuation in machining workshops and chemical process sites. This legacy PAMUX interface module is mainly supplied as spare replacement parts for existing XYCOM distributed control systems. Users need to confirm VME chassis compatibility, address allocation and PAMUX device matching before installation. A conformal coated version is optional for high humidity, dusty and corrosive industrial environments. This model is widely used in production line distributed control, packaging equipment, material handling systems and old VME-based remote I/O automation retrofit projects.

This pamux interface module adopts standard 3U single-height VME rack mount structure. It draws power from the VME backplane. LED indicators display power status and bus activity for convenient on-site inspection. The operating temperature range is 0°C to 50°C, storage temperature ranges from -40°C to 85°C, relative humidity 5% to 95% non-condensing. It complies with industrial shock, vibration and EMC standards and has CE certifications. It supports base address and communication parameter configuration backup for fast recovery after hardware replacement.

This XYCOM XVME-202 PAMUX interface module is widely applied in legacy VME control racks and distributed automation upgrade projects. It provides reliable bidirectional communication between VME host and remote PAMUX I/O units. As a reliable discontinued spare part, the XYCOM XVME-202 retains original VME bus and PAMUX protocol compatibility, and effectively reduces the renovation cost of legacy industrial control system maintenance.