Interphase V/FDDI 5211 VME FDDI Adapter Module - Dual Attachment

The Interphase V/FDDI 5211 is a single 6U VME slot adapter module that delivers dual attachment FDDI connectivity for VME-based systems. Built around a Motorola 68EC040 processor and Motorola FDDI chipset, this module supports both Single Attachment Stations (SAS) and Dual Attachment Stations (DAS) configurations on a single card. It employs custom Interphase ASICs to optimize DMA transfers and uses a split buffered architecture that enables full-rate data movement independent of host CPU cycles. The adapter is ANSI X3T9.5 compliant and has completed interoperability testing.

Technical Specifications

Processor: Motorola 68EC040

Network Interface: Motorola FDDI chipset with SMT Rev 6.2 and 7.3 support

VMEbus Interface: VME64 compliant, supporting transfers up to 45 Mbps; high-speed proprietary interface with unaligned transfers and queued host bus state machine

Memory Configuration: Variable up to 4 MB Video RAM (BRAM); selectable 1 MB or 4 MB communications buffer; options for 1 MB SRAM, 2 MB DRAM, or 128K SRAM

Firmware Storage: 256K FLASH (nonvolatile) with 384K and 512K options

Power Consumption: 5.0 A @ 5 V DC

FDDI Ports: Two transmitter ports, two receiver ports, one optical bypass port with up to 300 mA current sink capability

Optical Connectors: Multimode ST fiber; SC Duplex and ST for dual attachment; FSD MIC, SC Duplex, ST for single attachment

Copper Support: ANSI TP-PMD specification

Physical Form Factor: Single 6U VME slot; 233 mm length × 160 mm width × 20 mm thickness; 550 g weight

Operating Temperature: 0 to 55°C

Key Features

Dual attachment capability within a single VME slot

Custom ASIC-based DMA engine for optimized data transfers

Split buffered architecture eliminates real-time CPU involvement

Flash EPROM firmware upgrades supported

Selectable memory and storage configurations

Backward compatible with 4211 model

Typical Applications

VME-based systems requiring FDDI network connectivity

PXI and VXI instrumentation systems

High-speed data acquisition and transfer applications

Compatibility & Integration Designed for VME64-based architectures including PXI and VXI systems. SMT Rev 7.3 compatible with Solaris 2.x environments.