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PROCEDURA DE TESTARE FUNCTIONALA & DE PROGRAMARE A CARDULUI IDR-140M CMS 4´2

tehnica mecanica





PROCEDURA DE TESTARE FUNCTIONALA & DE PROGRAMARE A CARDULUI IDR-140M CMS 4´





ECHIPAMENTE NECESARE (HARDWARE

Echipamentele necesare pentru testare, sunt:



Sursa de alimentare\ -48V/5A


Multimetru (pentru masurarea tensiunilor +DC)


Osciloscop digital care are memorat shape of the 2 Mbit/G.703/75&120 Ohm pulse


Frecventmetru pentru masurarea semnalelor


BERmetru pentru rata de 2 Mbit cu interfata de 75 & 120 Ohm


DataCom Analyser cu interfata V.24 (RS232)


Un PC, cu caracteristici minime: Pe II 350/64 MB RAM/2,5 GB HDD


Un cablu serial pentru conectarea la PC


Un cablu pentru programarea JTAG


O placa externa de distributie cu cabluri


Un terminator de 75 Ohm


Unterminator de 120 Ohm


Un modul pentru testul extern I/O


Un rack de referinta pentru teste.Structura rack-ului este prezentata in figura 1.



Figura . Rack de referinta folosit pentru teste


SOFTWARE NECESAR

Urmatoarele programe software trebie sa fie instalat pe PC:

  • WebPack Device Programmer
  • SPI configurator

PROCEDURA DE TEST

INSPECTIE VIZUALA

Se verifica daca strapurile si jumperii sunt in pozitiile corecte. Locatia strapurilor si a jumperilor pe card sunt prezentate in fiugura urmatoare:

Figure

Figure







De asemenea, se verifica daca jumperii din Tabelul 1 sunt in pozitie corecta.


J1B

DESCHIS


J1H

DESCHIS

J2B

DESCHIS


J2H 151p157b

DESCHIS

J4B

DESCHIS


JM2

DESCHIS

J5B

DESCHIS


JM3

DESCHIS

J6B

DESCHIS


JM4

DESCHIS

J7B

DESCHIS


JM5

DESCHIS

J2

DESCHIS


U1_J1

POZITIA 1-2

J3

DESCHIS


JI1

DESCHIS

J1F

POZITIA 1-2


JI2

DESCHIS

J1E

INCHIS


JI3

DESCHIS (75 Ohm)

INCHIS (120 Ohm)

J2E

DESCHIS


JI4

DESCHIS (75 Ohm)

INCHIS (120 Ohm)

J3E

DESCHIS


JI5

DESCHIS (75 Ohm)

INCHIS (120 Ohm)

J4E

DESCHIS


JI6

DESCHIS (75 Ohm)

INCHIS (120 Ohm)

J4

DESCHIS


JI7

DESCHIS (75 Ohm)

INCHIS (120 Ohm)

J5

DESCHIS


JI8

DESCHIS (75 Ohm)

INCHIS (120 Ohm)

J6

DESCHIS


JI9

DESCHIS (75 Ohm)

INCHIS (120 Ohm)

J7

DESCHIS


JI10



DESCHIS (75 Ohm)

INCHIS (120 Ohm)


Tabelul 1














PROCEDURA DE PROGRAMARE

Pentru aceasta procedura se va folosi cablul de programare JTAG si programul software WebPack.


Se efectueaza urmatorii pasi:


  1. Se conecteaza cardul CMS la rack-ul de referinta.

  1. Se conecteaza cablul de programare JTAG, prima data la portul paralel al PC-ului si apoi la PCB-ul din spate al rack-ului, prin intermediul conectorului, UB_27, la fel cum este prezentat in Tabelul 2:

TDO

Pin 3

TDI

Pin 5

TMS

Pin 7

TCK

Pin 9

VCC

Pin 11

GND

Pin 2, Pin 4, Pin 6, Pin 8,

Pin 10, Pin 12, Pin 14

No Connect

Pin 1, Pin 13


Tabelul 2

  1. Pe PCB-ul din spatele rack-ului se afla si conectorul UB_28, se va conecta prin intermediul unui jumper pinul 1 la pinul 2.
  2. Se alimenteaza testorul de la swich-ul sursei de alimentare de referinta. Sursa trebuie conectata la PCB-ul rack-ului.
  3. Then, run at the PC the WebPack Device Programmer Software. From the FILE menu we select OPEN and from the browser window we select the "CMS.cdf" file, which is located in the C:/CIU/CMS/ directory. Select from the JTAG chain the XC18V02_vq44 device. From the OPERATIONS menu we select PROGRAM. We must tick the following boxes, Erase Before Programming, Verify and Load FPGA (if it is not already selected).

  1. Press the OK button. It will start the programming and verification procedure.

´8 DISPLAY

0xFF


Visual Inspection

( Spinning "/" end-> Hello !!!)



Intel Flash Memory

0x00

0x01




Atmel Flash Memory

0x00

0x01




I/O (Buzzer, CPU Led, ALM Led)

0xFF


Acoustic / Visual Inspection



MODULE Presence

0x00

0x0F

0x0F = 0000 1 1 1 1



4 I/O EOW

0xFF


Visual Inspection



RTC

0x00

0x01




NMS1 (serial 1)

0x00

0x01




NMS2 (serial 2)

0x00

0x02




Buttons (Enter, Exit, Up, Down)

0xFF


Visual Inspection



Framer (SPI)

0x00

0x01




ODU1 & ODU2

0x00

0x01 & 0x02



Figure


For tests 1, 6 and 10 require the Test Operator Intervention in order to complete them.


During test 1, the 1´8 LCD will spin the following characters " / - | \ " and will complete the test by displaying "HELLO!!!". For the successful completion of the test, all the pixels on the display matrix should flash ON and OFF.


For test 6, the use of the external I/O board is required. The board consists of 4 LEDs for output indication, and 4 switches for selecting input alarm activation commands. When starting the test, the 4 LEDs will turn ON and OFF one at a time, so it can test the 4 output lines. After the output test is completed, the test operator should test the 4 input lines by switching the 4 switches ON and OFF one at a time and observing the 1´8 LCD for switch indication. The test is completed successfully when all 4 LEDs turn ON and OFF and when the user switches ON and OFF the 4 switches we get a confirmation of switch activity on the display.

Figure . External I/O board


In test 10 when the respective button is held pressed (Enter, Exit, Up, Down), then on the 1´8 LCD the respective word (Enter, Exit, Up, Down) should be displayed. The test operator should verify whether the button has been pressed and then released in order to successfully complete the test.


In order for Test 6 to continue, the operator needs to PRESS ENTER


In order for Test 10 to continue, the operator needs to PRESS SIMULTANIOUS ENTER & EXIT.


When testing has finished operator MUST OPEN Jumper J1E.



PANA AICI AM DE TRADUS

MUX 4X2 TEST

For this procedure we must connect the serial cable, first to the serial port of the PC and then to the NMS 1 port to the CMS card on the rack. The test procedure is split into the following steps.

  1. Run the SPI Configurator Software on the PC. Select COM 1 (or COM 2) from the Port Selection menu. Press the LOAD ACTIONS button, click OPEN and on the browser window select the C:/CIU/CMS_Mux4x2/liu_mux4x2.txt file. After the file is loaded, the following should occur: The leds LDM, LDI2, LDI3, LDI4, LDI5 of the PCB, must be switch ON.

  1. Press the LOAD ACTIONS button, click OPEN and from the browser window select the C:/CIU/CMS_Mux4x2/loop_framer_a_b.txt file. The green led LDM must be switch OFF but the red leds shall remain ON.

  1. Set the following settings on the BER meter:

Bit Rate


2,048 Mbit/s (Unframed)

Line Code


HDB3

Line Impedance


75 Ohm (unbalanced)

Test Pattern


PRBS-15

Tx Clock Source


Internal

Rx Clock Source


Recovered from data (if required)

Jitter


OFF

Clock


Calibrated


Then connect the 4X2 75-Ohm system as follows:

Figure

If the system under test is a 4X2 120-Ohm system, the connection should be as follows:


Figure .

The connections within the D25 Female connector and with the BER tester in the case of the 120-Ohm system, are shown in the following table:


CONNECTIONS ON THE D25 CONNECTOR AND TO THE BER TESTER

BER Tester Out (+)














BER Tester In (+)

BER Tester Out (-)














BER Tester In (-)

BER Tester GND














BER Tester GND


The pin assignment on the D25 Male connector on the front panel of the system, is:


GND




OUT-4P

Positive OUT 4


OUT-4N

Negative OUT 4



IN-4P

Positive IN 4


IN-4N

Negative IN 4





GND



GND




OUT-3P

Positive OUT 3


OUT-3N

Negative OUT 3



IN-3P

Positive IN 3


IN-3N

Negative IN 3



GND



GND




OUT-2P

Positive OUT 2


OUT-2N

Negative OUT 2



IN-2P

Positive IN 2


IN-2N

Negative IN 2



GND



GND




OUT-1P

Positive OUT 1


OUT-1N

Negative OUT 1



IN-1P

Positive IN 1


IN-1N

Negative IN 1



GND



GND






After all the connections as shown above have been made, the green led must remain OFF and the red leds must be switched OFF.

At the BERmeter we must see NO ERRORS.

The BER Measurement takes place for about 1 min.


  1. Press the LOAD ACTIONS button, click OPEN and from the browser window select the C:/CIU/CMS_Mux4x2/powerdown_1_Mux4x2.txt file. The leds LDI2 and LDI3 must be switched ON and leds LDI4 and LDI5 must remain OFF.

  1. Press the LOAD ACTIONS button, click OPEN and from the browser window select the C:/CIU/ CMS_Mux4x2/powerdown_2_Mux4x2.txt file. The leds LDI2 and LDI3 must be switched OFF and leds LDI4 and LDI5 must be ON.


  1. Press the LOAD ACTIONS button, click OPEN, and from the browser window select the C:/CIU/CMS_Mux4x2/liu_mux4x2.txt file. The leds LDI(2,3,4,5) must be turned OFF.

  1. To test point TPM1 (Figure 2) measure with the multimeter, +2.5V + 0.2V.

  1. To test point TP1D (Figure 2) measure with the multimeter, +5.0V + 0.25V

  1. To test point TPM12 (Figure 2) measure with the oscilloscope, +2.5 V with ripple 0.5V P-P. Set the oscilloscope to 1V/div and 100 S/div accuracy for better observation of the ripple.

  1. To test point TPM3 (Figure 2) measure with frequency meter, 8.192 MHz, from 8191590 Hz to 8192410 Hz.

  1. To test point TPM2 (Figure 2) measure with frequency meter, 8,448 MHz, from 8195000 Hz to 8701000 Hz, range

HITLESS SWITCH TEST

  1. Press the LOAD ACTIONS button, click OPEN, and from the browser window select the C:/CIU/CMS_Mux4x2/rx_path_mux4x2.txt file. We must read in SPI Configurator window the following value [00].

  1. Press the LOAD ACTIONS button, click OPEN and from the browser window select the C:/CIU/CMS_Mux4x2/switch_b_mux4x2.txt file.

  1. Press the LOAD ACTIONS button, click OPEN and from the browser window select the C:/CIU/CMS_Mux4x2/rx_path_mux4x2.txt file. We must read in SPI Configurator window the following value [02].

PARALLEL ALARMS TEST

  1. Press the LOAD ACTIONS button, click OPEN and from the browser window select the C:/CIU/CMS_Mux4x2/parallel_1_mux4x2.txt file. We must read in SPI Configurator window the following value [FF].

  1. Press the LOAD ACTIONS button, click OPEN and from the browser window select the C:/CIU/CMS_Mux4x2/parallel_2_mux4x2.txt file.

  1. Press the LOAD ACTIONS button, click OPEN and from the browser window select the C:/CIU/CMS_Mux4x2/parallel_1.txt file. We must read in SPI Configurator window the following value [00].


MASK OF THE PULSE CHECK

Change the Test Pattern on the BERmeter from PRBS-15 to pattern "1000". Then make the connections as shown in the following figures, depending on whether the system under test is 75-Ohm or 120-Ohm. For the connection to the Oscilloscope we must use a 75-Ohm termination module. The shape of the pulse must already be stored in the memory of the Oscilloscope, and its characteristics are shown in the figure that follows.

Figure

In the case of the 75-Ohm system, repeat the same procedure for all of 4 channels to verify that the mask pulse is according to G.703 specs. After finishing the test, change the test pattern back to PRBS-15.


Figure



In the case of the 120-Ohm system the test cable assembly, which connects the system with the BER tester, is shown in the following figure. Tests should be repeated for all the system tributaries. Note that the way the (+) or (-) inputs of each tributary is connected to the BER tester or to the 120-Ohm termination module, is not significant.


Figure .


Use the pin assignment on the D25 Male connector given earlier, in order to construct the test cable assembly, if not already constructed.



SUB-MUX AND DATA INTERFACE TEST

First of all we must make the following settings to the Datacom Analyser.


Interface:

V.24 [DTE] [ASYNC]

Tx Data Rate:

19.2 KB/s

Character Length:


Stop Bits:


Parity:

None

Test Pattern:

PRBS-15


Before we start the procedure we must connect the serial cable, first to the serial port of the PC and then to the NMS1 port of the CMS. The test procedure is split into the following steps.


Run on the PC, the SPI Configurator Software. Select COM 1 (or COM 2) from Port Selection menu. Press the LOAD ACTIONS button, click OPEN and from the browser window select the C:/CIU/CMS_Mux4x2/Submux_mux4x2.txt file.


2.) Press the LOAD ACTIONS button, click OPEN and from the browser window select the

C:/CIU/CMS_Mux4x2/loop_framer_a_b.txt file.


3.) Then connect the External Distribution Board, first to the AUX connector of the CMS card and then the D-type connector (D9 or D25) to the Datacom Analyser. The connections are shown in the following figure.



Figure .


To the Datacom Analyser we must see NO ERRORS.

The BER Measurement takes place for about 1 min.


SWITCH ALARM TEST

1.) Press the LOAD ACTIONS button, click OPEN and from the browser window select the

C:/CIU/CMS_Mux4x2/submux_tx_path.txt file. We must read in SPI Configurator window the following value [14].


2.)Press the LOAD ACTIONS button, click OPEN and from the browser window select the

C:/CIU/CMS_Mux4x2/submux_rx_path.txt file. We must read in SPI Configurator window the following value [00].


3.) Press the LOAD ACTIONS button, click OPEN and from the browser window select the

C:/CIU/CMS_Mux4x2/submux_switch_path.txt file. When the file loads, the Datacom Analyser may have errors for a while. We reset the instrument and after that we must have the indication NO ERRORS


4.) Press the LOAD ACTIONS button, click OPEN and from the browser window select the

C:/CIU/CMS_Mux4x2/submux_tx_path.txt file. We must read in SPI Configurator window the following value [98].


5.) Press the LOAD ACTIONS button, click OPEN and from the browser window select the

C:/CIU/CMS/submux_rx_path.txt file. We must read in SPI Configurator window the following value [02].
































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