ME8600 ETC inspection system for OBE production

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 with "RSU simulator developed in our company".

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

Set an OBE in a small-size shielding box ME8661 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 ME8661, 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.

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
Compact shielding box ME8661	Shielding box for free space measurement
Microwave coaxial cable (3m)	Maximum frequency : 18.5Hz
Coaxial D-sub cable C (3m)	For connection of ME8620 and ME8661. Notes 1
Host computer	With GP-IB board
A4 printer	The test result printed out on A4 paper
Software MAS860	Basic test software.
Optional
Optional A	Receiving sensitivity test
Optional B	Burst BER measurement
Optional C	Communication test (R / W)
Optional E	Dynamic operation test

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. Notes 2
10. Receiving sensitivity	[Optional A] Measure RxC and RxD of OBE. Notes 3
11. Strength of radio wave emitted secondarily
12. Burst BER measurement	[Optional B] Measure RxC and RxD of OBE. Notes 4

2. 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.

[Notes 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.

[Notes 4] Connection of burst BER measurement
The method illustrated below using a circulator is the standard connection for burst BER measurement.

Protocol test (basic operation 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

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 a. Ideal pattern-OBE maximum input b. Ideal pattern-OBE minimum input c. Real pattern A d. Real pattern B e. Adjacent lane run pattern f. Shadow wing pattern

Signal name	Kind of line	Contents
TxC	Coaxial line	Transmission clock. Signal for test of "signal transmission speed"
RxC	Coaxial line	Receiving clock. Signal for test of "receiving sensitivity" and "burst BER measurement"
RxD	Coaxial line	Receiving data. Signal for test of "receiving sensitivity " and "burst BER measurement"
	Coaxial line	Reserve
	Coaxial line	Reserve
	Coaxial line	Reserve
	Coaxial line	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	Signal line
OBE CONT-2	Signal line
OBE CONT-3	Signal line
OBE CONT-4	Signal line
OBE CONT-5	Signal line
OBE CONT-6	Signal line
OBE CONT-7	Signal line
	Signal line	Reserve
	Signal line	Reserve
	Signal line	Reserve
	Signal line	Reserve
	Signal line	Reserve
GND	Signal line	Ground
GND	Signal line	Ground
+5V	Signal line	Power supply for buffer circuits in ME8661. And power supply for OBE under test (changing into 12V by DC-DC converter).
+5V	Signal line

System name	Hard addition	Software name	Functions

Inspection system for production 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	o	MAS86A	Receiving sensitivity
Optional B	o	MAS86B	Burst BER measurement
Optional C	×	MAS86C	Communication test (R / W)
Optional E	o	MAS86E	Dynamic operation test

Communication test	Note
R / W test	[Optional C] The sequence to write data (W) to the OB and to read it (R) is repeated.