[Discontinued Product]ETC Inspection System For OBE Production ME8600
The low-priced ETC inspection system developed for OBE production line.
- This is a low cost version automatic test system developed for OBE (on Board Equipment) production lines.
- It is also good for wireless system tests, protocol tests, dynamic operation tests and communication tests.
Features
All the tests during production of OBE can be conducted.
- Wireless system test (receiving sensitivity and burst BER measurement in options are included, and it is 12 items.)
- Protocol test (basic operation test of ARIB)
- Dynamic operation test
- Communication test
All the tests are conducted automatically.
Set an OBE in the small-size shielding box ME8661A and click [Test start] on the host computer. All the test items are executed automatically without human intervention.
Test results are printed on an inspection sheet.
Test results are printed on an inspection sheet of the user’s specified format on termination of a test. The customer is requested to give us the specified format at the time of placement of an order. The expenses for creation of inspection sheets are included in the standard system price.
More compact with rack accommodation.
The equipment is accommodated in a rack of height 1080mm (including castors), except for the small-size shielding box ME8661A, host computer and printer.
Low price
Price reduction was materialized by development of RSU simulator in our company and also by narrowing wireless system test items to important ones only.
System composition
*Please refer to “Test system and optional“.
| Item | Explanation of the contents |
|---|---|
| RSU simulator ME8610 | Simple frame master RSU and ASK standard signal generator |
| Control and measurement equipment ME8620 | Detector, Digitizer, Frequency counter, Microwave signal switching equipment [Optional ]BER measuring circuit, Programmable attenuator |
| Power meter | Main frame ML2437A, Power sensor MA2472A |
| RF spectrum analyzer | Main frame MS2665C, Standard crystal oscillator |
| Small-size shielding box ME8661A | Shielding box for free space measurement |
| Microwave coaxial cable (3m) | Maximum frequency : 18.5Hz |
| CoaxialD-subCableC (3m) | For connection of ME8620 and ME8661A.*1 |
| Host computer | With GP-IB board |
| A4 printer | The test result printed out on A4 paper |
| Software MAS860 | Basic test software. |
| Option | |
| Option A | Receiving sensitivity test |
| Option Ｂ | Burst BER measurement |
| Option Ｃ | Communication test (R / W) |
| Option Ｅ | Dynamic operation test |
[*1]Signal of coaxial D-sub connector
Coaxial D-sub connector consists of 7 coaxial lines and 17 single lines.
Test item
| Wireless system test | Note |
|---|---|
| 1. Deviation of antenna power | Measure peak power |
| 2. Frequency deviation | |
| 3. Strength of spurious emission | |
| 4. Tolerance of occupied frequency bandwidth | |
| 5. Carrier off leakage power | |
| 6. Modulation factor | |
| 7. Adjacent channel leakage power | |
| 8. Transmission opening eye ratio | |
| 9. Signal transmission speed | Measure TxC or “0” “1” modulation signal of OBE. *2 |
| 10. Receiving sensitivity | [Optional A]Measure RxC and RxD of OBE. *3 |
| 11. Strength of radio wave emitted secondarily | |
| 12. Burst BER measurement | [OptionA]Measure RxC and RxD of OBE. *4 |
[*2]Selection of the signal source for signal transmission speed test.
One out of the following can be selected as the signal source for “signal transmission speed” test.
- “TxC” signal taken out of the OBE to be tested.
- Signal produced by waveform shaping after detection of output signal in the state where the output mode of the OBE to be tested is set at repeating of “0” and “1” … There is a possibility of dispersion arising in measured values due to noise, if this signal source is used.
[*3]RxC and RxD for receiving sensitivity test
In a “receiving sensitivity” test it is necessary to take “RxC (receiving clock)” and “RxD (receiving data)” out of the OBE to be tested. If RxC and RxD cannot be taken out, a simple method to substitute the test with a communication test is available. Please contact us for such a method.
[*4]Connection of burst BER measurement
The method illustrated below using a circulator is the standard connection for burst BER measurement.
| Wireless system test | Note |
|---|---|
| 1.Check of ACTC transmission | Whether the operation is normal or not is displayed on the host computer. |
| 2.Check of ACTC transmission stop-maximum number of transmission times | |
| 3.Check of ACTC transmission stop-ACPI | |
| 4.Check of ACTC transmission stop-FCMC entry | |
| 5.Receiving of BST | |
| 6.Transmission of VST | |
| 7.End procedure 1 | |
| 8.End procedure 2 | |
| 9.Transmission and receiving of data | |
| 10.Transmission and receiving of data-Continuance | |
| 11.Transmission and receiving of data-Duplicate reject function | |
| 12.Transmission and receiving of data- OBE resending function | |
| 13.Transmission and receiving of data-OBE resending demand function | |
| 14.WCNC transmission function |
| Communication test | Note |
|---|---|
| R/W Test | [Optional C] The sequence to write data (W) to the OB and to read it (R) is repeated. |
| Dynamic operation test | Note |
|---|---|
| 1.Usual run test | [Optional E] |
| 2.Low-speed run test | |
| 3.High-speed run test | |
| Concerning each above-mentioned test: Ideal pattern-OBE maximum input Ideal pattern-OBE minimum input Real pattern A Real pattern B Adjacent lane run pattern Shadow wing pattern |
| Signal name | Kind of line | Contents |
|---|---|---|
| TxC | Coaxial line | Transmission clock. Signal for test of “signal transmission speed” |
| RxC | “ | Receiving clock. Signal for test of “receiving sensitivity” and “burst BER measurement” |
| RxD | “ | Receiving data. Signal for test of “receiving sensitivity ” and “burst BER measurement” |
| “ | Reserve | |
| “ | Reserve | |
| “ | Reserve | |
| “ | Reserve | |
| OBE CONT-0 | Signal line | Control signal for setup of OBE ‘s output mode. * It is possible to change to the setup using RS-232C and reserved terminals may be used. (But additional expenses are required elsewhere.) |
| OBE CONT-1 | “ | |
| OBE CONT-2 | “ | |
| OBE CONT-3 | “ | |
| OBE CONT-4 | “ | |
| OBE CONT-5 | “ | |
| OBE CONT-6 | “ | |
| OBE CONT-7 | “ | |
| Reserve | ||
| Reserve | ||
| Reserve | ||
| Reserve | ||
| Reserve | ||
| GND | “ | Ground |
| GND | “ | Ground |
| +5V | “ | Power supply for buffer circuits in ME8661A. And power supply for OBE under test . (changing into 12V by DC-DC converter). |
| +5V | “ |
Test system and optional
| System name | Hard addition | Software name | Functions |
|---|---|---|---|
| Automatic inspection system ME8600 | MAS860 | Wireless system test・Protocol test・Dynamic operation test・Communication test | |
| Protocol and communication test system ME8607 | MAS867 | Protocol test・Communication test | |
| Optional A | MAS86A | Receiving sensitivity | |
| Optional B | MAS86B | Burst BER measurement | |
| Optional C | MAS86C | Communication test(R/W) | |
| Optional E | MAS86E | Dynamic operation test |
ETC inspection system for OBE production ME8600
Please feel free to contact us.
If you want to verify 5G, customize a radio wave shield box, or need product repair, please do not hesitate to contact us about any small matter.