Handset Test System
The Handset Test System is a turnkey test solution for Handset manufacturers and
designers. With an optimized Test Program it can completely evaluate the acoustic
and electrical properties of a handset in as little as 5 seconds!
Handset Test System Features
- ITU-T and OREM standards compliant Acoustic measurements correlate directly to your R&D Lab
- Programmable DC voltage for microphone transducers
- Programmable plugin termination impedance modules
- Detailed test reports can be displayed on the monitor, printed or sent to a PC for capture.
- Up to 48 different Test Programs containing limits and testing sequences can be stored in non-volatile CMOS RAM.
- A typical handset can be tested in 5 to 10 seconds, depending on the test program.
- Test Program Limits, testing sequences, and operator messages are easily modified using the Microtronix Test Program Editor (TPE) for Windows.
PC software and accessories
are also available.
Compatible with both the
Microtronix Model 500 and Model 501 Test
Systems, the Handset Test
System consists of the following units:
Test Capability
- Acoustical frequency response measurements for Transmit and Receive
- Loudness Ratings can be calculated to ITU-T or OREM specifications
- Acoustic test results and limits can be defined in different ways (e.g. absolute, relative to 1 kHz, sensitivity, best fit, etc.)
- Receiver Varistor Test
- Transmitter Acoustic Shock
- Short Circuit Test checks for a resistance of greater than 100 kohms between the transmitter and receiver wires.
- Transmit and Receive Harmonic distortion test
The Model 500 Handset Test System is very flexible. Please contact
info@microtronix.ca or your local representative if you have special test requirements.
System
Hardware
The Model 500 Units fit standard 19"
racks and are stackable. These separate units are connected by
ribbon-cables containing the proprietary analog channels and digital bus.
Model 500 Controller Unit
- Instant start up from reset or power on.
- Instant Test Program starts from memory.
- No disk drives for maximum reliability in harsh environments
- Rugged power supply keeps working under a wide range of input voltage
- Built-in 9" monochrome screen for displaying test instructions, messages, and detailed results
- 27 button keypad
- Microtronix L4 System Firmware in FLASH memory provides test sequence control, test execution and operator user interface
Parallel printer port
- Multiple RS-232 ports for connection to Graph Manager and Summary Collector
If
you prefer a PC based controller see the Model
501 Controller
Measurement Unit
- Two independent Voltmeters with 14 bit A-to-D converters
- Programmable/ tracking bandpass filters for noise discrimination
Interface electronics to Acoustic Fixture
- Programmable Oscillator
Handset Unit
- Modular handset termination on front panel
- Tests electret or dynamic transmitters
- Programmable transmitter and receiver DC power supplies
- Seven program selectable transmitter and receiver terminations; two standard and five custom
- Short Circuit Test circuitry
- 1U chassis size
Acoustic Fixture
- Rugged and simple construction for heavy production use
- Quick handset clamping
- Artificial Mouth output can be regulated either by using the built-in microphone for real-time feedback, or by applying predetermined voltages saved in a look up table during calibration.
- Multiple-position Artificial Mouth can be configured to ITU-T or OREM standards
- IEC 318 or ANSI 6cc Artificial Ear couplers available
- Acoustic Coupler is spring loaded to accomodate handset size variations
- Molded handset Locating Rings are available for accurate positioning in factory applications (sample Handset must be provided to
Microtronix)
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