Abaco Systems / SBS / BSI 4422-PCI Telemetry Module

The Abaco Systems BSI 4422-PCI is a PCI bus telemetry module that acquires, processes, and simulates PCM data streams up to 20 Mbps. The single full-size card integrates PCM decommutation, optional bit synchronization, IRIG time code reading, and dynamic PCM simulation capabilities. On-board DMA and dedicated memory enable high-speed data transfers across the PCI bus, while programmable setup parameters and pollable status readback simplify integration into data acquisition and control systems.

Technical Specifications

• Data Acquisition Rate: Input data streams to 20 Mbps


• PCM Decommutation: Processes streams to 20 Mbps; supports variable frame and word lengths (3–16 bits); implements SFID, FAC, and URC subframe methods


• PCM Simulation: Full-fidelity simulation to 20 Mbps with dynamic and unique data word generation; autonomous operation capable


• Bit Synchronizer (Optional): Accepts all PCM codes; includes tape driver output; available as daughter card


• IRIG Time Code Reader: Accepts IRIG-A or IRIG-B time codes; programmable fallback to system time; supports minor frame IRIG insertion


• Data Transfer: On-board DMA engine with dedicated on-board memory for buffer addresses


• Bus Interface: Single PCI bus module


• Connectors: DB9 (bit synchronizer), DB25 (decommutator/simulator/time functions), 50-pin parallel output header


• Operating Temperature: 0° to 50° C


• Non-Operating Temperature: −25° to +70° C


• Humidity: 0 to 90% (non-condensing)

Key Features

• Variable word length processing from 3 to 16 bits


• Autonomous PCM generation with dynamic data patterns


• Fallback time source capability when IRIG is unavailable


• DMA-based transfers minimize CPU overhead


• Status monitoring via pollable register on PCI bus

Typical Applications

• PCM telemetry data acquisition and analysis


• Real-time PCM stream decommutation


• Ground-based test and simulation systems


• Time-synchronized data collection with IRIG references

Compatibility & Integration Operable with T/MATE software, third-party packages, or custom software implementations. Optional bit synchronizer daughter cards (Model 4400-TM or 4400-TF) and Unique Recycling Code option available.