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midUTS

functional test, optimized.

Combining bench-top portability with powerful automated test functionality, the midUTS is an extremely versatile yet cost-effective solution for your electronics functional test needs. Comprised of high-performance commercial-off-the-shelf (COTS) instruments, Bloomy’s medium-density signal-routing PCBAs, and a pair of high-integrity, production-grade cables connected to an adjacent benchtop fixture, the midUTS can be used in engineering for PCBA bring up, scaled to manufacturing to perform high-volume PCBA and sub-assembly functional testing, as well as depot diagnostic test, debug, and repair of field returns. The two mass-interconnected cables connect the midUTS to as many as 320 test points on the device under test (DUT), supporting an extreme wide variety of products using bed-of-nails as well as cable-connected DUT test fixtures. Most importantly, the midUTS helps you automate sequences of functional tests using a USB-connected MS Windows PC running NI TestStand and the Bloomy EFT Module for TestStand. This ideal balance between powerful features and affordable cost allow you to automate earlier in the product development lifecycle, substantially increasing product quality and minimizing time-to-market!

midUTS is ideally suited for:

  • Printed circuit board assembly (PCBA) and subassembly functional test
  • Engineering development, manufacturing, quality assurance and repair depot testing
  • Electronic product OEM, CM and EMS firms
  • Transporting and sharing automated test assets among multiple stakeholders
  • Typical device under test include robot and autonomous vehicle controls, computers and sensors; avionics, consumer electronics, defense, as well as medical devices

Development, manufacturing, and repair of electronic assemblies require cost-effective, adaptable automated test solutions. Our medium Universal Test System (midUTS) helps to meet these needs by providing a portable bench-top test system that can be used during bench-top engineering development and design validation and verification testing of a product, then moved to manufacturing to perform production testing, and utilized in a repair depot to debug and repair field returns.

Powered by NI USB instrumentation, a Pickering 2-slot LXI chassis containing two Pickering PXI switch matrix controllers, two robust Virginia Panel Corporation (VPC) i1 mass-interconnect jacks (one for GPIO, one for the switch matrix), Bloomy’s power control and switch matrix electronics, use of standard off-the-shelf cables to reduce system costs, the midUTS is driven by an internal fan-less PC with MS Windows operating system that runs test procedures developed with our Electronic Functional Test software suite (EFT) based on the test industry’s leading de-facto test software, NI TestStand and LabVIEW. Pertinent instrumentation for your device’s unique test needs is easy to add to the system in the form of up to 2 programmable DC power supplies, or replacement of the standard Pickering PXI switch matrix controllers with other PXI cards. Connections to your device under test (DUT) are made using fixtures as described in the Connectivity tab above.

The following specifications are standard. Systems can be customized to accommodate your requirements.

Instrumentation
NI USB-4065 Digital Multi Meter (DMM)
Resolution6 1/2 digit, 22-bit
FunctionsVDC, IDC, VAC, IAC, 2-wire resistance
NI USB 6341 X-Series Data Acquisition
Analog Input16 single-ended / 8 differential
±10V, 16-bit, 500K S/s
Analog Output2 single-ended
±10V, 16-bit, 900K S/s
Digital I/O8-channel, TTL, bi-directional, 1 MHz
Counter Timer4-channel, TTL, 100 MHz
Mux / Matrix Switching
TopologiesTwo 2x16 1-wire matrix
Two 2x8 1-wire matrix
Two 64x4 1-wire matrix
Switch Ratings2x16, 2x8: 37VDC, 0.5A, 10W max., 1 MHz BW
64x4: 300VDC max., 2A, 60W max., 4 MHz BW
General Purpose Relays
Relay ConfigurationsTwo SPDT, 30VDC @ 5A
Fixed Power Supplies
QuantityUp to 3
Power Options5, 12, ±15, 24VDC; up to 5A each
Programmable Power Supplies
QuantityUp to 2 (1U half rack size)
Power Options0-6VDC/0-100A to 0-600VDC/0-1.3A
Communication
Number of Ports2 (can be expanded)
Port OptionsRS-232, RS-422/485, CAN, SPI, I2C
Interfaces
Mass InterconnectTwo VPC i1, 160 pin
USB5 (type A or B)
Network1 (Cat5e RJ45 8x8)
Controller
TypeNeouSys low-profile fanless PC, i7,
8GB RAM, 64 GB SSD, Windows 10
User InterfaceBluetooth (wireless) keyboard and mouse,
22" LED desktop display
Physical
Dimensions20" W x 36" D x 10.5" H
Weight60 lbs

The device under test (DUT) is typically placed into a custom bed-of-nails or cable-connected DUT test fixture. The test fixture is then connected to the midUTS via the two VPC i1 mass interconnect cables. Together, the mass interconnect cables and fixture form an interface test adapter (ITA) packed with high-density connector module that route signals to and from the instrumentation and switch matrix in the midUTS. You can create your own fixtures or take advantage of our vast fixture-design experience.


i1 Mass Interconnect Cable


Cable-Connected DUT Test Fixture


Bed-of-Nails Test Fixture

midUTS with DUT Front View

midUTS with DUT Back View