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CS8030 - Test System for Telephonometry
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The basic structure carry-out all telephonometric measurements on telephone
set, Cordless, DECT, GSM or other mobile telephones, meeting the most
important Standards as UIT (CCITT), IEEE, OREM, AUSTRALIA, etc...
- A new
AC-4
Test Head, with
extended band - 100Hz to 8KHz, was designed to guarantee the better
measurement accuracy.
- The new AC-4 is conceived with advanced ergonomy for customer's
comfort in manufacturing environment, providing the automatic locking and
unlocking of the handset or TE under test. The AC-3 Test Head is also connectable with reduced performances.
- To
increase the capabilities of CS8030,
a programmable optional PSTN User Interface Simulator
can be installed.
- At present our R&D department is
studying an
ISDN User Interface, programmable and able to make many
measurements required by ETSI TBR8 rules. The ISDN interface let you able to
verify your TE from a functional point-of-view.
TYPICAL
MEASUREMENTS ACCURACY |
Acoustic
receiving and emitting sensitivity |
±0,5dB
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| Acoustic
receiving and emitting Loudness Rating |
±0,3dB |
| Harmonic
Distortion |
±0,2dB |
| RMS noise
measurements |
±0,2dB |
| Signals levels |
± 0,1dB |
| Return loss |
± 0,2dB |
Frequency |
± 0,01% |
Receiving,
emitting and sidetone measurement time - Hi-Speed |
0,7s
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Hi
accuracy |
3,4s |
| TEST
FAMILIES
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ACOUSTIC TESTS: |
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ELECTRICAL TESTS: |
- Impedance, return loss and echo return
loss
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- Unwanted signals out of band (*)
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OTHER TESTS: |
- Magnetic field around the earcap (provided
for coupling to hearing aids –UIT-P37) (*)
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| (*) under development
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The
System can be completed with: |
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Programming
and use
The CS8030 presents two kinds of programming.
The first method and most used is to assemble a sequential test program
obtained by choosing, in any order, the tests offered by the three
families. For each test, default parameters and limits are suggested,
depending of the national or international specifications selected.
The second method is to choose directly a test program or a single test
inside a program, by means of an IEEE-488 parallel port.
This means a System completely open.
The Engineer can select three ways to record the measurement results,
addressing it to:
- the IEEE-488 port;
- a local file;
- a remote file via its optional LAN
interface.
Special
features
CS8030 meets Laboratories and Manufacturing needs. It can work in
high-accuracy or in high-speed mode.
- High-accuracy mode means to spend
more measurement time to obtain the maximum of accuracy and
repeatability. That is typical for Design, Quality, Approval
Laboratories, etc...
- High-speed mode save inspection time, guaranteeing, at the same time,
good measurement accuracy.
CS8030 supports up to 4 test bench. An automation procedure runs the
test program associated to each AC-4, when it is loaded with the
telephone, in sequence.
Environment
The particular measure method allows the System to be used directly in
manufacturing areas, without protections or acoustic shields.
Special algorithms made transmission measurements free of
environmental noise influence.
Flexibility
CS8030 is system software based. So it's easy upgradeable by floppy
disks. New releases can be installed by wizard set-up procedures.
The hardware was conceived able to accept future enlargements.
Easy updateable for new Specifications or new Countries.
Low cost
related to the throughput
- Cost effective.
- Very reduced maintenance!
- Requires only periodical calibration of electroacoustic devices by
means of integrated calibration procedures which drives the operations,
collect the calibration data for the history of the Test Head, and
produce a Calibration certificate for the Quality purposes.
- The System Instruction Manual includes a calibration and verification
procedures list, to let possible the calibration of the complete System
from Accredited Laboratories. |
