Acroname MTM-USBStem
Acroname MTM-USBStem
USB Link Module for Manufacturing Test Control & Data Collection
The Acroname MTM-USBStem is your gateway between a host PC and the MTM ecosystem. This versatile link module enables test direction, control, and data collection over USB—while also providing onboard I/O for standalone testing tasks. Daisy-chain multiple MTM modules with a single USB cable for rapid, error-free test station bring-up.
Key Specifications
Analog I/O
- 3 analog-to-digital inputs (ADC): 12-bit resolution
- 1 digital-to-analog output (DAC): 10-bit resolution
Digital I/O
- 15 general-purpose digital inputs/outputs (GPIO)
- All I/O protected up to 12V input
Communication Interfaces
- 1 upstream USB connection (PCIe edge connector)
- 1 upstream USB Mini-B connector
- 1 I2C FM+ bus (1 Mbit/s) — BrainStem network
- 1 I2C FM bus (400 kbit/s) — peripheral devices
- Serial UART ports
Additional Features
- microSD slot for additional storage
- Real-time clock (RTC)
- Bulk capture mode for analog inputs
- User, link, power, and heartbeat LEDs
Power & Environmental
- Input voltage: 6V to 12V DC
- I/O voltage: 3.3V
- Operating temperature: 0°C to 70°C (no external cooling required)
Why Choose the MTM-USBStem?
Single-Cable Test Station Setup
Connect your PC to an entire MTM network through one USB cable. Daisy-chain as many MTM modules as your test station requires—no complex wiring or multiple host connections needed.
Built for Production Environments
Part of Acroname's Manufacturing Test Module (MTM) series, the USBStem is ruggedized for CM and OEM environments. All pin interfaces include reverse polarity and overvoltage protection.
Host-Based or Standalone Operation
Run tests from a host PC using the BrainStem API (C++, Python), or load reflex programs directly onto the module for PC-free operation. The onboard microSD slot provides storage for data logging and embedded programs.
Cross-Platform Support
Native driver support for Windows, macOS, and Linux. No driver headaches—just plug in and start developing.
Ideal Applications
- Host-to-MTM network communication bridge
- Test station control and data collection
- Standalone embedded test sequences
- USB-to-I2C bridging
- General-purpose I/O control in automated test systems
What's in the Box
- MTM-USBStem Module
Technical Resources
- BrainStem SDK (C++, Python) — free download from Acroname
- CAD files (STEP, IGES) available
- Detailed datasheet with full specifications
Manufacturer: Acroname Inc. (Boulder, CO, USA)
SKU: S69-MTM-USBSTEM
Datasheets and Models
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