Astronics / EADS / Talon Instruments SR214 16-Channel Variable Voltage Stimulus / Response Module

The Astronics / EADS / Talon Instruments SR214 is a 16-channel variable voltage stimulus and response module engineered for precision digital testing in aerospace, defense, and industrial applications. This VXI-compatible I/O module delivers synchronized stimulus generation and real-time response capture across multiple voltage standards, supporting complex test sequences with conditional branching and handshake control. The SR214 integrates into the SR192A Digital Test Module system to scale testing capacity to 192 channels.

Technical Specifications Timing & Data Performance

Timing rates to 50 MHz

Data rates to 25 MHz (50 MHz multiplexed)

Edge placement resolution: 5 ns

Channel-to-channel skew: 5 ns Electrical Characteristics

Voltage levels: TTL, ECL, RS485/422, variable ±15 V or +5/-2 V

Source/sink current: 50 mA per channel

16 stimulus/response channels per module Memory & Sequencing

Per-channel memory: 128 Kbits (256 Kbits multiplexed)

Test sequence memory: 128 K

Five memory architectures: Stimulus, Tristate, Record, Expect, and Mask

Data formats: Hold, RTZ, RT0, RTC Signal Control

Single-ended or double-ended logic options

Parallel and serial bus emulation capability

Trigger inputs from VXI TTL/ECL buses, front panel auxiliary inputs, or any channel

Offset sync outputs to test sequence start or step

Key Features

High-speed data sequencer controls stimulus/response patterns, UUT handshaking, timing, looping, and conditional testing

Real-time error capture during test execution

Conditional and unconditional jump, go-sub test sequence control

Graphical user interface for accelerated test development

LSRTAP file import support for rapid pattern data integration

Digital signal assignment matching to physical channels with operating characteristic definition

Typical Applications Aerospace and defense system validation, industrial equipment verification, complex digital bus testing, and multi-channel UUT functional and parametric assessment requiring precise timing correlation and conditional response monitoring.

Compatibility & Integration The SR214 mounts as a "C" size VXI module compatible with the SR192A motherboard. The SR192A system accommodates up to 12 I/O modules, enabling configurations of up to 192 total channels. SR214A modules support intermixing within compatible systems.