Astronics / EADS / Talon Instruments SR192 Digital Test Module

The Astronics/EADS/Talon Instruments SR192 is a VXI-based digital stimulus and response test module engineered for high-channel-count digital applications. This dual-slot C-size VXI module accommodates up to twelve I/O modules, delivering 96 to 192 digital I/O channels per unit with synchronization capability reaching 1152 channels across multiple modules. The SR192 supports TTL, ECL, RS485/422, and variable voltage logic (+/−15V or +5/−2V), configurable as single-ended or double-ended outputs with 50 mA source/sink current per channel.

## Technical Specifications

• **Digital I/O Channels:** 96 to 192 per module; up to 1152 channels with multiple synchronized modules
• **Timing Rate:** 50 MHz maximum
• **Data Rate:** 25 MHz; 50 MHz multiplexed
• **Memory Depth:** 128 Kbits per channel (256 Kbits multiplexed)
• **Edge Placement Resolution:** 5 ns
• **Channel-to-Channel Skew:** 5 ns
• **Source/Sink Current:** 50 mA per channel
• **Logic Options:** TTL, ECL, RS485/422, variable +/−15V, +5/−2V
• **Memory Architectures:** Stimulus, Tristate, Record, Expect, Mask
• **Data Formats:** Hold, RTZ, RT0, RTC
• **Test Sequence Memory:** 128 Kbits
• **Timing & Control Channels:** 20 channels
• **Configuration:** Single-ended or double-ended logic

## Key Features

• Modular front-end design supports SR115 bi-directional 16-channel modules, SR112/SR122 8-channel RS485 differential modules, SR125A, and SR214A variable voltage modules
• SR101/SR101A Timing Set modules provide sequence control, UUT handshaking, pattern data management, and conditional testing with up to 128 K test sequence memory
• Conditional and unconditional jump sequences with go-sub test capability
• Parallel and serial bus emulation support
• Optional SR210 Accessory Module (100 Hz to 50 MHz programmable clock) and SR110 DAC Module
• SCPI-compatible command interface matching Talon BE-64 protocol

## Typical Applications

Digital functional testing, bus emulation, parallel and serial protocol validation, multi-channel stimulus/response characterization.

## Compatibility & Integration

VXI ecosystem; controlled by SR101/SR101A timing modules; integrates with SR110 DAC and EADS SR107 PIO accessory modules; SCPI message-based programming interface.