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Tektronix MB100 User Manual

1. ERROR ERROR ERRORED RATE TOTAL SECONDS 0 0E 00 0 0E 00 0 0E 00 0 0E 00 0 0E 00 0 0E 00 0 0E 00 0 0E 00 TOTAL BITS CHAN 1 952E 10 Channel Error Status Display 8 Channels ERROR STATUS INDICATORS Green LED 1 In Sync and valid error performance status Red LEDs 3 Sync loss word error and clock loss Yellow LEDs 4 History of sync loss word error clock loss and power loss LEDs remain on until reset AUDIO Audio tone indications error detected front panel volume adjustable DISPLAY 16 X 32 Back lighted LCD REMOTE GPIB Compatible with IEEE 488 2 RS232C DB 25 connector General Size 8 H X I4 W X 17 D Power AC 115V 250W nominal Operating Temp 10 to 40 degrees C Weight 22 Ib 10 kg A 9 Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www artisantg com Specifications A 10 MB100RT TTL ECL Translator Pods Inputs Data 24 or 32 and word clock 1 Level TTL nominal Connector Sub miniature SMB SSMB Female Outputs Compatible to MB100R Level Differential ECLs Connector AMP 201311 1 75 pin housing rear panel and 6 foot cable Size 6 H X 10 W X 10 D Power AC 115V 50W nominal A simplied view ofthe TTL inputs is shown below MB100 TTL XLTR Input Circuitry simplified diagram SN10KHT5543 TTL to ECL Translator Vih min 2 0 Vdc Vil max 0 8 Vdc Channel 1 Cha
2. Error Analyzer ton sr SYNCRONIZED Outputs e Outputs RUN STOP a Poi o 90 HISTORY RESET Clock Outputs Clock Inputs Clock Outputs Word SYNC Prescale Direct Word SYNC Word Clock Clock Clock Word Clock Word Clock 2 Channel Monitor Rx Front Panel Tx Front Panel Figure 1 1 Front Panels of MB100 The MB100R is a portable or rackmount receiver error analyzer capable of receiving up to 32 parallel data channels in excess of 110 Megabits per second per channel The MB100T is a portable or rackmount transmitter pattern generator capable of transmitting parallel data word patterns These patterns used for bit by bit comparison are programmable in length up to 65 536 bits per channel Typical of test sets used for communications testing the capability of this system includes error detection for each channel individually bit error rate calculation and input timing delay control An additional function for this tester is an aggregate error accumulation calculation and display Also each individual channel can be inhibited at the receiver input Inhibiting a channel will allow automatic parallel data synchronization to occur using all other channels 1 2 MB100 User Manual Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www artisantg com MB100 User Manual Product Description Overview The MB100 is a parallel Bit Error Rate Tester BERT designed to be a ful
3. Subminiature SMB SSMB cable The front panels of the Converter or Translator pods use individual cables connecting to each of up to 32 connectors The key details of these cables known as Subminiature SMB SSMB is as follows e RGI78 coaxial cable e Connector AMP part number 7202 1572 002 e Suggested minimum length of cable 24 e SSMB cables can be purchased from several sources MB100 Translator pods are also shipped with SSMB to SMA cables MB100 User Manual Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www artisantg com Controls Indicators and Connectors Connection Techniques The following illustrations demonstrate examples of connecting the MB100 to ECL UUT input and custom device testing Suggested Connection Techniques for Differential ECL MB100 Transmitter to Differential ECL UUT Input AMP Coax aa MB100 Transmitter Device Under Test DUT 50 Ohm Transmission Line Receiver MC10EL16 50 Ohm Transmission Line o o 5 2 Vdc I 2700hm 2700hm li li k li I I Figure 2 13 MB100 Tx to UUT Input Custom Device Testing Application ECL Inputs and TTL Outputs MB100 Tx i i MB100 Rx 24 Channel ECL UUT 24 Channel ECL Single Ended ECL input Single Ended or Differential TTL Output or Differential Custom Cable by customer or optional MB100 Device Cable or standard
4. A rtisan Artisan Technology Group is your source for quality TecmoogyGroup new and certified used pre owned equipment FAST SHIPPING AND SERVICE CENTER REPAIRS WE BUY USED EQUIPMENT DELIVERY Experienced engineers and technicians on staff Sell your excess underutilized and idle used equipment TENS OF THOUSANDS OF at our full service in house repair center We also offer credit for buy backs and trade ins IN STOCK ITEMS www artisantg com WeBuyEquipment EQUIPMENT DEMOS HUNDREDS OF InstraV ea REMOTE INSPECTION LOOKING FOR MORE INFORMATION MANUFACTURERS Remotely inspect equipment before purchasing with Visit us on the web at www artisantg com 7 for more our interactive website at www instraview com information on price quotations drivers technical LEASING MONTHLY specifications manuals and documentation RENTALS ITAR CERTIFIED yop aed Contact us 888 88 SOURCE sales artisantg com www artisantg com User Manual Tektronix ri MB100 Multi Channel BER Tester 070 9783 01 This document applies to firmware version 1 5 and above Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www artisantg com ii Copyright Tektronix Inc 1997 All rights reserved Tektronix products are covered by U S and foreign patents issued and pending Information in this publication supersedes that in all previously published material Specifications and price change privilege
5. ACTIVE PATTERN NVRAMO and push the ENTER button Likewise on both be sure that PRBS PHASE DELAY 4 BITS is also selected 5 Select EDIT ACTIVE PATTERN on both Tx and Rx and push ENTER 6 Using the softkeys under the screen select ENTER DATA and then select FILL W PR 15 This fills the NVRAM 0 with a PRBS 215 1 data pattern on all channels but offset from the previous by 4 bits This will take about 33 seconds If a PRBS Phase Delay of zero had been selected each channel would have exactly the same pattern with no offset Every output would always be identical Selecting a zero delay will allow the fill to take place more quickly in about 7 seconds 7 Push the ESC button to return to the main menu 8 On both Tx and Rx select CLOCK INPUT OPTIONS and push ENTER 9 Use the cursor keys and the soft keys to select CLOCK INPUT TRUE and 0 0 nS delay 10 On the Tx likewise select EXT CLOCK INPUT PRESCALED and EXT CLOCK PRESCALER 4 This selection causes the Tx to look for the external clock input on the PRESCALE CLOCK input and divide its frequency down by 4 The per channel data rate cannot exceed 1 10Mhz and the aggregate cannot exceed 3 5 Gbit All channels will run at the same rate 11 Push the ENTER button on both Tx and Rx to return to the main menu 12 On the MB100 Rx select PER CHANNEL ENABLE and press the ENTER button 13 P
6. ueceietenee tnter tinte 2 4 RX Front Pariel sendet 2 8 Output Connectors eseeeeeeee 2 9 Error Analyzer eee 2 9 Rear Panel inset 2 11 Customer Service how to reach iv MB100 User Manual D Data Synchronization Menu Rx 3 38 Differential Mode esses 2 15 Display Active Pattern Menu RE uineis etin ete i ees 3 30 TX usns EU 3 4 RX Weseexeesiesu etes 3 32 TR TS err eI 3 6 E ECL to TTL Translator sse 2 14 Edit Active Pattern Menu RX 0 uueesnuee E ente 3 33 TX O iseesteiu e nte dense aes 3 7 Error Injection Menu Tx 3 10 F Features amp Capabilities usse 1 4 First Time Operation eeeses 1 12 Turn on the MB100 sssse 1 12 Verifying Proper Operation 1 13 Cable Connection sssssss 1 14 Clock Source Connection 1 15 Pattern Selection PRBS 2 1 1 15 Single Error Inject on Each Channel 10 for Continuity Check 1 16 Verify Error Free Operation 1 16 G Generate Detect Custom Patterns 3 9 Getting Started sss 1 1 GPIB Interface see MB100 programmer manual H HEX data interpreting 3 5 3 3 Identify Menu e 3 42 y MEME
7. 32 Channel DIFF 32 Channel DIFF Figure 1 6 Differential ECL Configurations 16 24 or 32 Channel Device Testing Application MB100 Tx MB100 Rx 16 24 or 32 i TTL to 16 24 or 32 Channel ECL ate S E ECL Channel ECL Single Ended XLTR Single Ended MB100 Extender Cable i MB100 Extender Cable 16 Channel S E Use SMA toSMA 16 Channel S E 24 Channel S E i barrels for self test 24 Channel S E 32 Channel S E 32 Channel S E SSMB to SMACables SSMB to SMA Cables Figure 1 7 TTL Translators for Single Ended ECL Configurations 16 24 or 32 Channel Device Testing Application MB100 User Manual 1 7 Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www artisantg com Product Description MB100 Tx 16 or 24 Channel ECL Differential lt Clock MB100 Rx D 16 or 24 a Dua p DUE Dus Channel ECL Differential MB100 Extender Cable 16 Channel DIFF 24 Channel DIFF MB100 Extender Cable 16 Channel DIFF 24 Channel DIFF p e 4 Use SMA to SMA barrels for self test SSMB to SMA Cables SSMB to SMA Cables Figure 1 8 TTL Translators for Differential ECL Configurations 16 or 24 Channel Device Testing Application 1 8 MB100 User Manual Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www artisantg com Accessories Product Description Standard acce
8. 55 no differential signal available for gt 24 channels 57 no differential signal available for gt 24 channels 59 no differential signal available for gt 24 channels 60 29T Channel29True 1 1 62 no differential signal available for gt 24 channels 63 64 no differential signal available for gt 24 channels 66 nodifferential signal available for gt 24 channels 70 no differential signal available for gt 24 channels ES Se 72 y 73 CLOCK Clock True P mus OT COMP SYNC TRUE 6 Sync Compliment differential systems only COMP TRUE COMP Be es o o o f 80 To o 82 d l E 7 7 7 7 2 7 Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www artisantg com Controls Indicators and Connectors Power 2 8 Rx Front Panel MB100 RX Enter ESC y g Error Analyzer ERROR STATUS SYNCRONIZED SYNC Outputs e ec e WORD e ERROR RUN STOP coc 9 Loss le PowERLoss s HISTORY RESET Clock Outputs Word SYNC Word Clock Figure 2 4 Rx Front Panel of MB100 Multiline LCD Display Numeric Keypad Data Entry To the right of LCD display is a hexadecimal keypad used for data entry in applicable sub menus There is also a key a decimal key and auxiliary F1 and F2 keys Cursor Keys To the right of numeric keypad is a set of four cursor control keys The UP and DOWN keys are u
9. FILL W ROM Error Injection Single Error Injection Per Channel Enable Error Rate Per Channel Delay Change Delay SET ALL NOMINAL SET TO NOMINAL ADD 100 pS SUB 100 pS ENTER DELAY Clock Input Options DIRECT PRESCALED SLAVE CLK Clock Output Options TRUE INVERT Channel Monitor Selection Remote Setup RS232 GPIB View Angle use lt gt keys Identify 3 43 Artisan Technology Group Quality Instrumentation MB100 RX Measurements Display Measurements Aggregate Measurements Last Second Only SYNC Sweep Pattern Edit Display Display Active Pattern Edit Active Pattern Enter Data FILL W ZEROS FILL W ADDR FILL W PR 7 FILL W PR 15 FILL W ROM Per Channel Enable Clock Input Options Data Synchronization Remote Setup RS232 GPIB View Angle use lt gt keys Beep Volume use lt gt keys Identify MB100 User Manual Guaranteed 888 88 SOURCE www artisantg com Applications Applications BERT Technology Bit Error Rate Tester BERT The MB100 is a BERT that is it generates a serial stream of digital data to a device under test DUT in turn the DUT returns the data to the MB100 where it is synchronized and a bit by bit comparison is performed to determine the bit error rate ERRORS TOTAL BITS A basic BERT generates a Pseudorandom Bit Stream PRBS with a length of 2 1 N is typically 7 9 15 23 etc a PRBS pattern with N 7 is referred here as PRBS 7 These PATT
10. If displayed data appears in an reverse video manner in the display window then this is data contained in the pattern edit memory buffer but is beyond the set length of the current output pattern 3 6 MB100 User Manual Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www artisantg com MB100 User Manual TX Menus and Displays EDIT ACTIVE PATTERN The Edit Active Pattern selection from the Tx Pattern Edit Display submenu leads to a screen that allows editing of the currently used output pattern EDIT ACTIVE PATTERN EDIT ACTIVE PATTERN NVRAMO LENGTH 65536 ADDR HEX DATA gt 0000 0F409104 0001 F2008435 0002 000F C569 0003 13042CC1 0004 0B803421 0005 77B09A12 0006 B0D00123 PAGE PAGE GO TO ENTER PATTERN DOWN UP ADDR DATA LENGTH The edit active pattern message indicates the present edit buffer used by the output memory The pattern length number is the current length of pattern output The address field is displayed in decimal the data field is displayed in hexadecimal Pattern Edit Display Softkeys Page Down Page Up Softkeys Advances the displayed address and data combination by one screen Go To Addr Softkey The Go to Address selection pops up a data entry field to type in a decimal address to advance the display screen to If displayed data appears in an reverse video manner in the display window then this is data contained in the pattern edit memory buffer but
11. MASTER SYNC INSTALLED SLAVE SYNC INSTALLED VERSION V1 5 PRESS ESC FOR MAIN MENU 3 22 MB100 User Manual Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www artisantg com Rx Menus and Displays Rx Menus and Displays To turn on the Receiver toggle the ON OFF switch located in the lower left hand corner of the Front Panel A self test will take place and then be followed by the company logo and the current software version With the exception of VIEW ANGLE and BEEP VOLUME each of the menu items is a category leading to a sub menu To enter a sub menu use the cursor control keys located to the right of the keypad to place the cursor next to a category Press the ENTER key to move to the sub menu To return to the MAIN MENU press the ESC key multiple presses of the ESC key may be necessary to get to the highest level of the menus Main Menu Measurements SYNC Sweep Pattern Edit Display Per Channel Enable Clock Input Options Data Synchronization Remote Setup View Angle use lt gt keys Beep Volume use lt gt keys Identify 3 23 MB100 User Manual Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www artisantg com RX Menus and Displays gt MEASUREMENTS The Measurements submenu available from the Rx Main Menu controls the display of error measurements The initial display is as follows MEASUREMENTS DISP
12. Poland Portugal Saudi Arabia South Africa Singapore Spain Sri Lanka Sweden Switzerland Taiwan Thailand Tunisia Turkey United Arab Emirates United Kingdom Uruguay Venezuela Zimbabwe Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www artisantg com Table Of Contents Customer Service how to reach ooo eceeccecccccsssceceesscceceescececscceceesseeeceessececeeseceessseeceesseeecnsseeeeesieeeeesaes iv General NEM NIInIILIASE T T ix Getting fa fo a tLe eee eee 1 1 lucitediizigsniMr T 1 2 OV EL VIEW 50522555 sae heave be el ee eae D IE dH etu Mi 1 3 Features amp Capabilities ono pror e e er tere rire TE REES REER RETES exire aaa 1 4 JACCOSSOHeSES odore eee uM ILI A 1 9 Standard ACCESSOMES lt i ivecniveee chiveca ernn oean e EEE E REOTA EEEE NEE EE Sua EEO NEE SEE EE EEEF RIES 1 9 Optional Accessories reti ihe ein ee e Pe CR TERRE ER P ER EEE REEERE 1 9 First Time Operation m rsss res 1 12 Tuormon the MB100 i ER ERE E REIR DEVI awe asso eee 1 12 Verifying the Proper Operation dies ecd eH Hr HE EET HERO Free EE R 1 13 Gable Contection oie cto eed eaaet iai dre ie iud ees 1 14 Clock Source Connect On isserrat ire etis t Ege E Dee FED ELSE Eee E ONE EEEE E CHEER ates 1 15 Pattern
13. Quality Instrumentation Guaranteed 888 88 SOURCE www artisantg com Controls Indicators and Connectors ENTER ESC Keys The ENTER key is used to access sub menus The ESC key is used to move up a single level from a sub menu towards the MAIN MENU The ESC key also cancels data entry Softkeys Beneath the multiline LCD display is five softkeys The function provided by each of the keys is displayed for appropriate menus The pressing of a softkey will activate the function associated with it Tx Input Connectors Two connectors are used to input external clocks One external clock directly drives the system clock the other is input to an internal prescaler before driving the system clock Direct Clock A single BNC connector is used for inputting the system word clock at the channel rate Two terminations are menu selectable AC coupled 50 ohms and TTL 50 ohms Prescaled Clock A single 50 ohm SMA connector for inputting a high speed aggregate clock to a prescaler This clock is internally divided and used to drive the system pattern generators The divider values are menu scalable values allowed are 4 8 10 12 16 20 24 and 32 The prescaler is particularly useful for testing devices that provide a multiplexed output Tx Output Connectors Four connectors provide a SYNC output word clock output word clock output divided by 2 and a channel monitor output Word SYNC A single low pulse is output once per patt
14. Transistor Transistor Logic circuit it is necessary to use an ECL to TTL converter or translator unit The pinout of the converter pods match the pinout of MB100 Tx ECL to TTL Translator MultiBERT 100 DATA CHANNEL OUTPUTS WORD CLOCK OUT 3 4 5 B B EH E WORD 11 12 33 CLOCK 2 OUT B H E a TTL 19 20 21 B H NH 27 28 29 B H NH DATA CHANNEL OUTPUTS TTL 50 OHM SOURCE Figure 2 8 Front Panel of ECL to TTL Translator Pod for MB100 Model No Serial No Options 115 VAC Differential Data and Clock Outputs AC Power Input Figure 2 9 Rear Panel of ECL to TTL Translator Pod for MB100 2 14 MB100 User Manual Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www artisantg com TTL to ECL Translator TTL to ECL Translator The MB100 outputs ECL Emitter Coupled Logic and inputs ECL In order to take input from a TTL Transistor Transistor Logic circuit it is necessary to use an TTL to ECL converter or translator unit The pinout of the converter pods match the pinout of MB100 Rx TTL To ECL Translator MultiBERT 100 DATA CHANNEL INPUTS WORD CLOCK OUT a TTL B H NH 19 20 21 B H NH 27 28 29 B H NH DATA CHANNEL INPUTS TTL Figure 2 10 Front Panel of TTL to ECL Translator Pod for MB100 Model No Serial No Options 115 VAC Differential Data and Clock Outputs AC Power Input Figure 2 11 Rear Panel of TTL to ECL T
15. channel will still have the same sequence but will be phase shifted from the adjacent channel by 4 bits Fill W ROM The fill with ROM key transfers the optional ROM into battery backed RAM for editing 3 8 MB100 User Manual Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www artisantg com TX Menus and Displays If none of the softkeys are chosen then data can be entered at the present address by using the data entry keys and pressing ENTER If the ENTER key is repetitively pressed after this entry then the last entered data is written into successive memory locations Generate Tx Detect Rx Custom Patterns The following table demonstrates the relationship between the hex data bits and the address in order to create custom patterns Sample User Defined Test Pattern id id Wave Pattern channel The above test patterns would then be coded in the Tx and Rx memory as follows ADDR DATA Ooo 00000005 1 00000008 2 00000006 00000005 MB100 User Manual 3 9 Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www artisantg com TX Menus and Displays ERROR INJECTION The Error Injection submenu available from the Tx Main Menu controls the error injection of the MB100 Transmitter The submenu appears as follows gt SINGLE ERROR INJECTION PER CHANNEL ENABLE ERROR RATE OFF ERROR RATE 1 0E 7 ERROR RATE 1 0E 6 ERROR RATE 1 0
16. selections will not be displayed If the enabled selection is chosen then the internal pattern alignment circuits are enabled and an internal pattern slip is accomplished when the SYNC Threshold is exceeded When the SYNC Threshold is exceeded the LED lights on the Rx Front Panel labeled SYNC Loss will light up The SYNC Threshold can be altered by moving the cursor down one line A table that follows on the next page charts the relationship between the threshold chosen and the approximate error rate When the cursor is next to the SYNC Threshold line the softkeys are displayed as above MB100 User Manual Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www artisantg com Rx Menus and Displays The following table charts the relationship between the threshold chosen and the approximate error rate Each selection will change the threshold Threshold Setting vs Error Rate 256 4096 gt 6 25x10 2 64 4096 gt 1 56x10 2 16 4096 gt 3 91x10 3 MB100 User Manual 3 39 Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www artisantg com RX Menus and Displays 3 40 REMOTE SETUP The Remote Setup submenu available from the Rx Main Menu controls the setting of the remote ports GPIB and RS232 A set of softkeys is initially displayed for selection of which of the two to edit REMOTE SETUP SELECT REMOTE INTERFACE RS232 or GPIB If GPIB
17. 3 22 Index 1 Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www artisantg com Index L Line Fuse changing esses 2 13 M Measurement Menu Rx Softkeys 3 27 Measurements Aggregrate iin eet tese direi 324 Last Second sss 3 24 Measurements Menu Rx 3 24 Menus and Displays RX Beep Volume eene 3 41 Clock Input Options ssss 3 37 Data Synchronization 3 38 Display Active Pattern eee 3 30 Display Pattern Softkeys 3 32 Edit Active Pattern 3 33 Identity dete scettr ente 3 42 Measurement Menu Rx Softkeys 3 27 Measurements 3 24 Pattern Edit Display 3 29 Per Channel Enable 3 35 R miot Setup netten rete 3 40 SYNC Sweep 3 28 View Angle 3 41 TX Channel Monitor Selection 3 19 Clock Input Options ssss 3 15 Clock Output Options 3 18 Display Active Pattern eee 3 4 Display Pattern Softkeys 3 6 Edit Active Pattern esses 3 7 Error Injection seeeeeee 3 10 Generate Detect Custom Patterns 3 9 Identify nce trente 3 22 Pattern Edit Display 3 3 Pattern Edit
18. Application esses 1 5 1 4 Single Ended ECL Configurations 16 24 or 32 Channel Device Testing Application 1 6 1 5 Differential ECL Configurations 16 24 or 32 Channel Self Test Application 1 6 1 6 Differential ECL Configurations 16 24 or 32 Channel Device Testing Application 1 7 1 7 TTL Translators for Single Ended ECL Configurations 16 or 24 or 32 Channel Device Testing Application issen ie rna nennen tenere trennen nnne enne ns 1 7 1 8 TTL Translators for Differential ECL Configurations 16 or 24 Channel Device Testing Application ecrire rrt eee oen e n te b a e me edd 1 8 1 9 Block Diagram of Setup sss eene nennen rennen enne nre nre raan Sn EEEE RE paarse 1 13 1 10 Multiconductor pinout left Multiconductor connection on Rear Panel right 1 14 2 1 Tx Front Panel of MB100 eicere rep e DEO ERU de Pe eae i eo chin 2 2 2 2 Tx Rear Panel of MB100 wou ec ceccccssccesscecsseceeececsssecesececssecseeescseeceaseceseecsseeseseecaseseseecsaeeeeeeecegs 2 4 2 3 Tx Rear Panel Differential Output Connector Pinout sese 2 5 2 4 Rx Front Panel of MB100 00 cece ccscesssceessecseesecssecesseeessccesessssecessssessecsseeeeaseceaseeseesecsueeeasecens 2 8 2 5 Rx Rear Panel of MBT0QO tinere e iH e e rea tends 2 11 2 6 Rx Rear Panel Differential Output Connector Pinout eseseeeseeeeeene
19. Display Softkeys 3 3 Per Channel Delay sse 3 13 Per Channel Enable 3 12 Remote Setup 3 20 Single Error Injection sse 3 11 View Angle ecrit ense 3 21 Menu Maps oaeeeceeesecessseceeseeceeeeeeeseeeneeeeeeaes 3 43 Index 2 P Pattern Edit Display Menu RX 7 0 Andes aetate ve Ideen 3 29 IX oO O Gente tnde nd 3 3 Pattern Edit Display Softkeys Tx 3 3 Per Channel Delay Menu Tx 3 13 Per Channel Enable Menu o PR 3 35 TX 0 siesesesn enesogn ien Rd 3 12 Product Description 1 2 ACCESSO C Sonena e as 1 9 Standard Accessories 1 9 Optional Accessories 1 9 OVerVIOW edis eiut erred iter Era 1 3 Technology Bit Error Rate Tester BERT 3 44 Features amp Capabilities 1 4 R Remote Setup Menu Re 00 Enceinte Eed 3 40 TX O 00 wviesesbpieen dip petites 3 20 RS 232 Interface see programmer manual S Safety Summary General Ix Single Ended Mode suse 2 15 Single Error Injection Menu TX 3 11 SSMB Cable doeet ud ra DES 2 18 SYNC Sweep Menu Rx ssss 3 28 T Threshold Setting esses 3 39 TTL to ECL Translator sse 2 15 V View Angle Menu Nc cc 3 41 IX O
20. MB100 User Manual TX Menus and Displays CLOCK INPUT OPTIONS The Clock Input Options submenu available from the Tx Main Menu controls which clock input port is active either DIRECT PRESCALED This submenu also sets options relative to either selection in the MB100 Transmitter If DIRECT CLOCK INPUT is selected the menu below it permits selection of the termination either AC coupled 50 ohms or DC coupled TTL 50 ohms The submenu appears as follows for DIRECT selected TX CLOCK INPUT gt EXT CLOCK INPUT DIRECT lt PRESCALED gt EXT CLOCK PRESCALER 4 8 lt 10 gt 12 16 20 24 32 DIRECT PRESCAL CLOCK CLOCK TX CLOCK INPUT EXT CLOCK INPUT DIRECT PRESCALED D EXT CLOCK TERMINATION AC 50 OHMS TTL 50 OHMS AC TTL TERMNAT TERMNAT If the EXT CLOCK INPUT selection is PRESCALED then the menu appears as follows 3 15 Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www artisantg com TX Menus and Displays 3 16 TX CLOCK INPUT gt EXT CLOCK INPUT DIRECT lt PRESCALED gt EXT CLOCK PRESCALER 4 8 lt 10 gt 12 16 20 24 32 DIRECT PRESCAL CLOCK CLOCK For either DIRECT or PRESCALED a set of softkeys appears that allows the selection of an item next to the cursor When the DIRECT clock is selected move the cursor down a line to re configure the softkeys for entry of the direct clock termination The DIRECT clock runs the transmitter s wo
21. Single Ended vs Differential Mode eese rroiak aienea RE EER nennen 2 17 Key details of Rear Panel cabling esssssssssseeseeeseeeeeee enne enne ennt nnne 2 18 Subminiature SMB SSMB cable sse ener nennen entren nennen 2 18 Connection Technique iieri te ree e n tH E Y Pe ER RT THER HR Eta 2 19 vi MB100 User Manual Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www artisantg com Reference REM 3 1 TX Menus and Displays 3 2 Pattern Edit Displ y 5 etre rette sieuntendeaenatuacuste sna Dee RENDERE ERAT E EE OUR ONERE Eb ERE MEE ERR canes 3 3 Display Active Pattern acie eco e er a RH e RR e E ee E oe AEREE 3 4 Interpreting HEX data CEDERE 3 5 Display Pattern Softkeys ccccecccesscssscesscesecesecesecseecaeecsecseecseecaeeeaeseeeeecseeeseseaeceaeeeaeceaeeneecaeeaeeenes 3 6 Edit Active Pattetn oie ea esito n dett ied o Or EE EESE EEEE Ea EaR EN ENAERE EEEE beiden 3 7 Pattern Edit Display Softkeys 5 acc reete Hire ae e dedi e eee 3 7 Generate Tx Detect Rx Custom Patterns sess ener 3 9 Error Injection iin ienesis tese nerien ve ed Eque Tut ede e eese sie e Ts desee ge esie a 3 10 Single Error Injection 2 eiie EE eere ete po ROUTER ERE Ye astern E XE Ee ER EE EEE EEEa 3 11 Per Channel Enable eO RERO HEU EH END I ee E ENERO TO TEUUR 3 12 Per Channel Delay ape eee ne ere
22. ere tectorum n LLL c ee ELEME E 3 13 Clock Input Optiotis 5 tette iei ree eee b e e so Ele re Y Ue per dag eets 3 15 Direct Clock Input Coupling iicet eti terreri neben etn e eren ii dede eere rene Siae enie 3 17 Clock Output Options nter ett e C RTI e He e EEG 3 18 Channel Monitor Selection eeessessseeeeeeeneenen ener eene nennen enne aE nennen R Eek a RE ENES 3 19 Reinole Se UD aene n E aeuistereei ettet Dieser e a a E a 3 20 View Anel eera E N R 3 21 Identify nna aia ete E R R REO E RRA R lee 3 22 RX Men s and DisplayS R 3 23 Measurements E HEEN 324 Measurement Menu Rx Softkeys sss eren enne enne nnne nnns 3 27 SYNC SWeeDounetutiorueni E Ute animer aH cpi nea REO RITE 3 28 Pattern Edit Display sess eene entere trennen rre enne enne 3 29 Display Active Ioni p onde 3 30 Interpreting HEX data oce eth ee ee De R 3 31 Display Pattern Ofte ysis onte rere EDO qe teas te eee mee ME o ena ord ee 3 32 Edit Acttve Pattetm e duooretov mn ences eects tare obae thu EE tiers 3 33 Per Channel Enable eie nde eerie cni ir testeee ipea cus ep AERE i n ie EEEE EAEAN 3 35 Clock Input Options 2 recti n mete e re e Hr PESE 3 37 Data Synchronization erret epit Rep PER IEEE o PRATER PEDE NEL RP FU DE ONAE ERE Ea ER CE EEEE 3 38 hisuep cli MO 3 40 V
23. have earlier disabled all but the first four channels connect the remaining four jumpers to connect the first four channels in a similar manner as you connected the clock jumper If everything is working properly the green SYNCHRONIZED LED should be on and the red ERROR STATUS LEDs should be off Push the RUN STOP button to start taking measurements On the MB100 Rx select the MEASUREMENTS item from the Main Menu and then press the ENTER button Use the cursor keys to select AGGREGATE RESULTS and then push the ENTER button Lastly select MEASUREMENTS and again push the ENTER button Select Channels 1 8 and observe that there are no errors To practice inserting errors on the Tx select SINGLE ERROR INJECT Inject an error on one of our four channels Note Some channels may be disabled for error injection Use the up and down error keys to see which channels are enabled for error injection To enable disabled channels press ESC then choose PER CHANNEL ENABLE Return to the error inject menu MB 100 User Manual Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www artisantg com Applications Testing for Crossed Channels Now let s artificially cause some errors in one of the channels to show what happens 1 On the MB100 Rx STOP the test 2 On the MB100 Tx select PATTERN EDIT DISPLAY from the Main Menu Next
24. is beyond the set length of the current output pattern Pattern Length Softkey Pops up a data entry box that allows the current pattern length to be altered Enter a decimal number in the range of 1 to 65536 and press the ENTER key or press the ESC key to exit the data entry mode without changing the current value 3 7 Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www artisantg com TX Menus and Displays The Enter Data softkey at the Tx Edit Active Pattern submenu activates another set of softkeys and a pop up data entry window that allows pattern definition on a per byte basis or predefined patterns to fill the pattern memory ENTER DATA PRESS ENTER TO SAVE NEW DATA 00000000 PRESS ESC TO CANCEL FILL W FILL W FILL W FILL W FILL W ZEROS ADDR PR 7 PR 15 ROM Fill W Zeroes Clears the current pattern memory Fill W Addr A predefined pattern with a length of 256 words Each 8 bit byte of a word contains the address value For example the address 10 contains the data OAOAOAOAH for a 32 channel system Fill W PR 7 and PR 15 The PR 7 and PR 15 softkeys fill the pattern memory with a pseudorandom sequence of length 127 and 32767 respectively All channels will contain the same sequence with the seed being 7 or 15 consecutive ones When the PRBS Phase Delay is 0 bits all of the channels will have identical data phase aligned When the PRBS Phase Delay is 4 bits each
25. logo The system s main menu will be displayed on each unit 1 14 MB100 User Manual Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www artisantg com First Time Operation Clock Source Connection l Apply the external clock source to the direct clock input using a 50 ohm BNC cable Set the clock source to 1 MHz 1 volt peak to peak If you are using the GB1400 as an external clock source connect the cable to the clock input and set the amplitude to 1 V offset of 0V At the Main Menu screen use the arrow keys located in the Data Entry section of the Transmitter front panel to scroll the menu cursor down to the line labeled CLOCK INPUT OPTIONS Press the ENTER key above the arrow keys this will display a menu that allows you to pick the external DIRECT or PRESCALED clock inputs Press the softkey located below the LCD screen directly under the DIRECT CLOCK selection if it is not already highlighted Next pick the input clock termination by moving the cursor down to the clock termination line Press the softkey below the AC termination selection if it is not already highlighted Pattern Selection PRBS 27 1 l 2 3 4 MB100 User Manual Press the ESC key on the transmitter Move the cursor to the PATTERN EDIT DISPLAY line Press the ENTER key Move the cursor to the ACTIVE PATTERN NVRAMO and press the ENTER key The output memory buffer area is now using one of two edita
26. other MB100 Tx MB100 Rx MB100 ECL to TTL and TTL to ECL pods RG178 multiconnector cable SSMB Subminiature SMB cable mB100 Tx Prescale CLK IN gB700 Tx CLK o mB100 Rx a Multi conductor Cable gt mB100 TTL to ECL 1 2 3 99 bg i 1 Legend mB100 Tx Transmitter mB100 Rx Receiver SSMB Cable mB100 ECL to TTL converter pod mB100 TTL to ECL converter pod gB700 TX gigaBERT 700 used to supply clock source Figure 3 2 Connection diagram Tx Rx ECL to TTL and TTL to ECL pods MB100 User Manual 3 45 Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www artisantg com Applications 3 46 Please follow the step by step instructions below in order General Setup l Connect the ECL to TTL Translator pod to the MB100 Tx using one of the black connectorized cables Do the same with the TTL to ECL Translator and the MB100 Rx In each case the three odd connections in the connector should be towards the bottom of the instruments Using five AC power cords plug in the GB Tx MB Tx MB Rx and both pods Turn them on The two pods have their power switches on the rear panel NOTE An external clock source is required For the purposes of this example we are using the Tek GB700 A word clock at the channel rate or an aggregate clock that the MB100 will divide down is required One further suggestion w
27. select EDIT ACTIVE PATTERN 3 Use the up and down cursor keys to select the first address 00000 and push the ENTER DATA soft key 4 Using the data entry keypad enter exactly the same hex data as already shown for that address except that you should substitute a D for the rightmost F Data is entered from left to right except that leading zeros are not entered Press ENTER when you are done On the MB100 Rx start a new test Only the second channel should show errors 5 On the MB100 Rx turn AutoSync off If the delay was set to 4 you can easily identify crossed channels since the data expected by the Rx on each channel is different If the delay was set to 0 crossed channels will cause no errors as all channels carry the same data The above demonstration illustrates the operation of the instrument and gives you some idea as to how it might be used It can identify crossed channels errors in individual channels and it can detect crosstalk between channels If ECL terminations rather than TTL terminations are needed the pods are not used The multi conductor cable connected to the rear of the pods are already ECL and can be directly connected to the DUT The pods are used here to make switching channels easier This completes the simulation of four channels of data through a Device Under Test DUT MB100 User Manual 3 49 Artisan Technology Group Quality Instrumentation Guaranteed 888
28. 0 1 0 1 0 t O 8 00005555 j0j 1j 0 1 0 1 0 1 0 1 0 1 0 1 0 7 MB100 User Manual 3 31 Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www artisantg com RX Menus and Displays Display Pattern Softkeys Page Down Page Up Softkeys Advances the displayed address and data combination by one screen Go To Addr Softkey The Go to Address selection pops up a data entry field to type in a decimal address to move the display screen to If displayed data appears in an reverse video manner in the display window then this is data contained in the pattern edit memory buffer but is beyond the set length of the current output pattern 3 32 MB100 User Manual Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www artisantg com Rx Menus and Displays EDIT ACTIVE PATTERN The Edit Active Pattern selection from the Rx Pattern Edit Display submenu leads to a screen that allows editing of the currently used output pattern A sample of this screen is shown below EDIT ACTIVE PATTERN EDIT ACTIVE PATTERN NVRAMO LENGTH 65536 ADDR HEX DATA gt 0000 0F409104 0001 F2008435 0002 000F C569 0003 13042CC1 0004 0B803421 0005 77B09A12 0006 B0D00123 PAGE PAGE GO TO ENTER PATTERN DOWN UP ADDR DATA LENGTH The edit active pattern message indicates the present edit buffer used by the output memory The pattern length number is the current length
29. 02 000F C569 0003 13042CC1 0004 0B803421 0005 77B09A12 0006 B0D00123 PAGE PAGE GO TO DOWN UP ADDR The display active pattern message indicates the present buffer source used by the pattern output memory The pattern length number is the current length of pattern output The address field is displayed in decimal the data field is displayed in hexadecimal The HEX DATA represents the logic states for each channel in the MB100 This information is displayed with 8 hex digits to represent the 32 channels maximum available in the MB100 Unequipped channels will be filled with logic Os The most significant bits MSB for the HEX DATA display is the left most digit This hex character represents the values for channels 28 32 The least significant bits LSB for the HEX DATA display is the right most digit This hex character represents the logic values for channels 1 4 MB100 User Manual Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www artisantg com TX Menus and Displays Interpreting the HEX DATA in your Active Pattern Display Each hex digit in your active pattern display represents the logic states for four individual channels A value of hex 0 means all 4 channels are programmed low A value of hex F means all 4 channels are programmed high A complete conversion of the hex values to their corresponding binary or logic states is shown in the following table Hex to Binary Conversion
30. 1 housing with an AMP type 51565 2 pin Single Ended vs Differential Mode Single Ended Mode compares the clock and data against a DC voltage decision threshold which is referenced to the ground of the Rx However common noise effects that appear on both the data and data bar or clock and clock bar such as grounding differences between the Tx and Rx interference on cables and degradation in amplitude or wave shape can result in errors as seen by the Rx circuits Single Ended Mode is considered to have a low noise immunity Differential Mode compares the clock to clock bar and data is compared to data bar This is done by propagating two signals of equal amplitude and opposite polarity The decision threshold of differential mode is sensitive to the difference between the two signals Since the decision threshold is not amplitude dependent a high noise immunity results A preference for Single Ended or Differential Mode is dependent on the circuit under test MB100 User Manual Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www artisantg com Cabling Key details of Rear Panel cabling e MB100 outputs ECL and inputs ECL e Pinout of Converter pods match pinout of Tx e RGI78 coaxial cable required e Connector AMP plug 201310 1 75 position e minimum length of cable 6 feet e Single ended 1 2 of pinout on back of unit filled e Differential all pinouts on back of unit filled
31. 88 SOURCE www artisantg com Applications Differential Signaling Devices BER Testing Sample Application 2 Introduction Bit Error Rate BER testing is one way to measure the signal quality performance of a communications system The standard equation for a bit error rate measurement is Bit Error Rate Number of Bit Errors Total Number of Bits Common measurement points are bit error rates of lt 1x 10 One or less errors in 1 million bits sent lt 1x10 One or less errors in 10 million bits sent lt 1x10 gt One or less errors in 100 million bits sent lt 1x10 One or less errors in 1 billion bits sent 1x10 gt One or less errors in 10 billion bits sent lt 1x 10 gt One or less errors in 100 billion bits sent lt 1x 10 2 One or less errors in 1 trillion bits sent 1x10 gt One or less errors in 10 trillion bits sent lt 1x 10 gt One or less errors in 100 trillion bits sent Note that BER testing is time intensive The time length of the test is determined by the data rate and also the desired performance bench mark See the example in the chart below Minimum Test Times for Various BER Rates 50 Mbps 2 000 000 555 6 23 15 Differential Signaling devices can be tested for Bit Error Rate using the MB100 Tx and Rx In the following example four drivers were used to drive a length of standard twisted pair cables at selected data rates Four receivers were used to recover the data at the load end of the
32. Bit MSB So the LSB channel will always measure errors on perfectly fine converters Get around this by disabling the LSB channel Then any errors can be attributed to significant bits and the problem can be isolated using the ability of the MB100 to look at each individual channel MB100 User Manual 3 57 Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www artisantg com Applications 3 58 MB100 User Manual Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www artisantg com Appendix A Specifications MB100T MB100 User Manual This chapter details the functional specifications of the MB100 Multi Channel BER Tester These specifications include the Transmitter the Receiver the ECL to TTL converter and the TTL to ECL converter INPUTS External Clock Inputs CLK IN1 or CLK IN2 selectable CLK INI Frequency Amplitude Termination Connector CLK IN2 Prescale N Frequency Amplitude Termination Connector Direct input 50 kHz to 110 MHz square wave 0 5 1 volt peak to peak AC coupled with 0 Volt threshold 0 0 5 0 volts max DC coupled with 2 0 Volt threshold AC coupled 50 ohm or DC Coupled 50 ohm BNC front panel Prescaled input N 4 8 10 12 16 20 24 and 32 1 4GHz max Divided clock must be 110MHz 0 5 1 volt peak to peak AC coupled 50 ohm SMA front panel Artisan Technology Group Quality Instru
33. Decimal Binary Equivalent Equivalent Logic Value for a 4 channel group pee highest pin lowest pin If your MB100 was configured with 24 channels the leftmost 2 digits will always contain 0 s If your MB100 was configured with 16 channels the leftmost 4 digits will always contain 0 s A sample hex data display with the corresponding channel state values is shown in the following table Sample Channel Data Conversion Memory Contents by Channel m ewm Balad el eere mm dd IS 32 0 0000000 j 0 0 0 0 0j 0 0 0 O O J O JO JO O O O na 1 oo001111 j 1 0 0 0 1 0 0 0 1 0 0 0 1 0 0 O m 2 o00222 o 1 o olo t o o o 1 O O O 1 O O na 3 0000333 1 1 0 0 1 1 0 0 1 1 0 0 1 1 0 O m 4 ooo444 ojlo t ojo o t o o o T O O O 1 O J na 5 ooooF29 0 0 1 1 1 0 0 1 0 1 0 0 1 1 f f ma 6 ooooro ojo o ojo o o o t 1 1 1 O O O O ma 7 0000AAAA 1 0 1 0 1 0 1 0 1 0 1 0 1 0 f O m 8 j ooo555 oj1 o tjo t oj1 o 1 0 1 0 1 O j 1 J v MB100 User Manual 3 5 Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www artisantg com TX Menus and Displays Display Pattern Softkeys Page Down Page Up Softkeys Advances the displayed address and data combination by one screen Go To Addr Softkey The Go to Address selection pops up a data entry field to type in a decimal address to move the display screen to
34. Doerenkampgasse 7 A 1100 Vienna Austria Phone 43 1 70177 261 Fax 43 1 70177 260 Finland Helsinki Phone 358 4783 400 Fax 358 47834 200 France and North Africa Tektronix S A ZAC Courtaboeuf 4 Av du Canada B P 13 91941 Les Ulis Cedex France Phone 33 1 69 86 81 81 Fax 33 1 69 07 09 37 Germany Cologne Phone 49 221 94770 Fax 49 221 9477 200 Italy Milan Phone 39 2 25 0861 Fax 39 2 25 086 400 Japan Tokyo Phone 81 3 3448 3111 Fax 81 3 3444 3661 The Netherlands Hoofddorp Phone 31 23 069 5555 Fax 31 23 569 5500 Norway Oslo Phone 47 22 07 0700 Fax 47 22 07 0707 Spain Madrid Phone 34 1 372 6000 Fax 34 1 372 6049 Sweden Stockholm Phone 46 8 629 6500 Fax 46 8 629 6540 Switzerland Zug Phone 41 42 219192 Fax 41 42 217784 U K Marlow Phone 44 1628 403300 Fax 44 1628 403301 MB100 User Manual Tektronix sales and service offices around the world Algeria Argentina Australia Bahrain Bangladesh Belgium Bolivia Brazil Bulgaria Canada Chile People s Republic of China Columbia Costa Rica Cypress Czechoslovakia Denmark Ecuador Egypt Finland France Germany Greece Hong Kong Iceland India Indonesia Ireland Israel Italy Ivory Coast Japan Jordan Korea Kuwait Lebanon Malaysia Mexico The Netherlands New Zealand Nigeria Norway Oman Pakistan Panama Peru Phillippines
35. E 5 ERROR RATE 1 0E 4 ERROR RATE 1 0E 3 The SINGLE ERROR INJECT selection displays a submenu that allows single errors to be injected on a channel The PER CHANNEL ENABLE selection controls which channel is allowed to have errors injected upon it The ERROR RATE selections directly enable error rates to be evenly injected on all enabled channels An reverse video highlight box indicates the present status of the error rate injection function To change the error rate use the cursor keys to move the cursor to the desired selection and press the ENTER key 3 10 MB100 User Manual Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www artisantg com TX Menus and Displays SINGLE ERROR INJECTION The Single Error selection from the Tx Error Injection submenu is chosen by pressing the ENTER key next to this line To inject an error on a specific channel move the highlight box using the cursor keys to the desired channel Press the Error Inject softkey A message will be displayed at the bottom of the screen indicating that the error was injected SINGLE ERROR INJECTION Select Channel with Arrow Keys 1 2 3 4 5 6 7 8 MB100 User Manual 3 11 Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www artisantg com TX Menus and Displays 3 12 gt PER CHANNEL ENABLE The Per Channel Enable selection from the Tx Error Injection submenu is chosen
36. ERNS are generated in the Transmitter Tx or Generator and the Receiver Rx or Detector they operate in a continuous loop The Receiver synchronizes the data returned by the DUT by either gating off slipping clocks to its internal generator or for the longer codes it will open its internal generator loop feed the data into the loop and then close the loop again feed forward The FEED FORWARD method is used for long codes PRBS 23 because it can take a very long time to clock slip through the pattern to synchronize for example up to 8 million clock slips to synchronize PRBS 23 Most BERTs include a PROGRAMMABLE WORD The programmable word allows the user to program customized patterns for testing the DUT and also to program different patterns into the Tx and Rx which is required in order to test devices that change the data before returning it to the Rx MB100 User Manual 3 44 Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www artisantg com Applications Simulate Four Channels of Data through Device Under Test Sample Application 1 For this exercise we will simulate four channels of data through a Device Under Test DUT The objectives of this exercise are e Demonstrate how to set up and use the instrument e Show an example of crossed channels a simulated real application Equipment List An External Clock Source is required Examples include the Tek GB700 or GB1400 or
37. FF does not echo typed data ON does Refer to Chapter 4 External Controllers for more information on RS 232 2 View Angle USE gt The view angle can be adjusted by placing the cursor next to this selection in the Rx Main Menu Press the left and right cursor keys to adjust it to one of 15 different values 2 Beep Volume USE The speaker volume can be increased or decreased by pressing the left and right cursor keys The left cursor key will decrease the volume the right cursor key will increase the volume MB100 User Manual 3 41 Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www artisantg com RX Menus and Displays gt IDENTIFY Pressing the ENTER key next to this selection available from the Rx Main Menu displays a listing of the current software version number of installed channels and other installed options Press the ESC key to leave this menu IDENTIFICATION MICROWAVE LOGIC MULTI BERT 100 RECEIVER 32 CHANNELS INSTALLED VERSION V1 5 PRESS ESC FOR MAIN MENU 3 42 MB100 User Manual Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www artisantg com Menu Maps Menu Maps The following columns list all the menu and submenu choices available from the MB100 Tx and Rx MB100 TX Pattern Edit Display Display Active Pattern Edit Active Pattern Enter Data FILL W ZEROS FILL W ADDR FILL W PR 7 FILL W PR 15
38. HAN 1 COMPLEMENT Notes 1 All pins are coaxial 2 Connector does not use numbers 6 9 19 61 68 69 81 Configurations 16 24 or 32 channel single ended 16 or 24 channel differential Clock Clock 2 and SYNC Complement only in differential configurations CLOCK TRUE CLOCK COMPLEMENT SYNC COMPLEMENT Figure 2 3 Tx Rear Panel Differential Output Connector Pinout AMP 201301 1 5 OQO 8 O20226 22 QQ 25 QLA 28 OQO 31 QO NORCO 5 QA 40 Qu CAD 43 QOO 46 976956 49 3505 51 52 amp 536 s4Ga 55 Ge s6 63 58 656396 e Ce C3 656 C3e 70 7107O 2 5 Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www artisantg com Controls Indicators and Connectors MB100 Tx Rear Panel Birerentia Output Sonne ror Pinout Description Pin Signal Tx signals are outputs Rx signals are inputs 1 1T Channelt True 2 HC Channel 1 Compliment differential systems only 2C jChamel2Tue S O Fi 21 Channel 2 Compliment ifferenta systems oni 5 3T jCnamel3Tue i O 7 3C Channel 3 Compliment differential systems only 8 4T jCnamel4Tue 17 46 53 no differential signal available for gt 24 channels 2 6 MB100 User Manual Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www artisantg com MB100 User Manual Controls Indicators and Connectors
39. IEW AN le E onde 3 41 Beep Volume cies ees cece OU REPO HDD TIRAS EIER 3 41 TAE e crneter cermin eter ee certian ne M crater carrera MEE 3 42 MO UBUPL T russos sasos 3 43 EXQUICUDDI R 3 44 BERT Technol gy erit entere ertet erre rte eterni eee e iS He e det eese uelis 3 44 Simulate Four Channels of Data through the Device Under Test see 3 45 Differential Signaling Devices BER Testing essent nennen 3 50 Validation Testing or Final Manufacturing Testing esee 3 55 Testing Analog Digital Converters ccccccccsseessesseessceseeseceecesecesecsecaecaaecaeecaeecsecaeecaeesaeeeeesneesereeas 3 57 Appendix jnn A 1 Glossary Index MB100 User Manual vii Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www artisantg com List of Figures Figure f etes etia eere tateidi iode tede E E teg inerte teet Onis te perd Pe gd Page 1 1 Front Panels of MB100 cccccssccssssecesscssssecssscssssecessesssaecsssessauecessessssecsasessasecsaecseasesseeseaseceas 1 2 1 2 Typical Connection for testing Parallel to Parallel Interfaces nee 1 5 1 3 Single Ended ECL Configuration 16 24 or 32 Channel
40. L outputs Connector AMP 201311 1 75 pin housing Rear panel Interconnect Cable 6 foot cable RG178 coax bundle with mating connectors Outputs One output for each differential input Data Clock and Sync Logic zero Output 0 0 4 volts with unterminated load Logic one Output 5 0 4 volts with unterminated load Source Impedance 50 ohms current source driven Output Connectors Sub miniature SMB SSMB Size 6 H X 10 W X 10 D Power AC 115V 50W nominal A simplified view of the TTL Driver circuitry for each channel is shown below MB100 TTL XLTR Output Circuitry equivalent circuit Channel n _F to control circuitry A HN MB100 User Manual A 5 Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www artisantg com Specifications MB100R A 6 CLOCK INPUT CLK IN1 DATA INPUT Number of Channels 24 channels 32 channels optional Frequency 110 MHz max Level ECL single ended or differential Termination 100 ohms differential Delay range 2nS 100 pS step Clock phase Rising edge aligned to data transition nominal internal inversion Polarity True Invert selectable Connector AMP 201311 1 75 pin housing rear panel INTERNAL REFERENCE PATTERN Data Pattern Programmable or PRBS 27 1 215 1 Pattern length Programmable 64K max 1 Word resolution Memory size 64K bit deep per channel Static pattern storage Battery backed two 64k ind
41. LAY MEASUREMENTS DISPLAY lt AGGREGATE RESULTS gt DISPLAY LAST SECOND ONLY The displayed data will be either AGGREGATE RESULTS or LAST SECOND ONLY This will be indicated by the highlighted selection To change the selection move the cursor to the appropriate line and press the ENTER key The selection AGGREGATE RESULTS will display the measurement data accumulated during the entire test period The selection LAST SECOND ONLY will display the measurement data accumulated during the last second recorded during the test 3 24 MB100 User Manual Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www artisantg com Rx Menus and Displays The DISPLAY MEASUREMENTS selection from the Rx Measurements submenu will lead to the Aggregate Measurement display Both aggregate and per channel displays are controlled from this submenu using the softkeys The initial display is as follows AGGREGATE MEASUREMENTS ELAPSED SECONDS ERRORED SECONDS CLOCK LOSS SECONDS SYNC LOSS SECONDS TOTAL BITS 4 6446E 11 TOTAL ERRORS 0 BIT ERROR 0 000F 00 FREQUENCY 10 00E 06 Hz CHAN CHAN CHAN CHAN AGGRE 1 8 9 16 17 24 25 32 GATE The Aggregate Measurements display is a synopsis of all enabled channels A test is started when the RUN STOP key on the Front Panel is cycled from Stop to Run the green LED is lighted in the switch The transition from STOP to RUN clears all error counts and totals Er
42. MB100 Extender cable MB100 Standard Extender Cable Custom Cable by customer Multi conductor AMP to SSMB Figure 2 14 Custom Inputs and Outputs MB100 User Manual 2 19 Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www artisantg com Cabling 2 20 MB100 User Manual Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www artisantg com Reference This chapter describes the MB100 Multi Channel BER Tester LCD menu structures and displays Tx Menus and Displays begin on page 3 2 Rx Menus and Displays begin on page 3 23 A listing of Menu Maps for both Tx and Rx appears on page 3 43 This chapter also describes a representative sample of MB100 Multi Channel BER Tester Applications 3 1 MB100 User Manual Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www artisantg com TX Menus and Displays Tx Menus and Displays To turn on the Transmitter toggle the ON OFF switch located in the lower left hand corner of the Front Panel A self test will take place and then be followed by the company logo and the current software version With the exception of VIEW ANGLE each of the menu items is a category leading to a sub menu To enter a sub menu use the cursor control keys located to the right of the keypad to place the cursor next to a category Press the ENTER key to move to the sub menu To return to th
43. N 1 8 9 16 17 24 25 32 DELAY Chan 1 8 9 16 17 24 25 32 Softkeys The channel number softkeys will only appear for the channels that are installed These keys allow the display of different groups of 8 channels MB100 User Manual 3 13 Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www artisantg com TX Menus and Displays 3 14 Change Delay Softkey This key at the Tx Per Channel Delay submenu reassigns the softkeys to commonly used edit functions for setting the delay SET ALL TO NOMINAL SET TO NOMINAL ADD 100 PS SUB 100 PS and ENTER DELAY CHAN DELAY PRESS ENTER TO SAVE NEW DELAY PRESS ESC TO CANCEL PRESS ESC FOR OTHER CHANNELS SET ALL SET TO ADD SUB ENTER NOMINAL NOMINAL 100 pS 100 pS DELAY Set All Nominal Softkey Places all channels to a delay of zero Set To Nominal Softkey Sets the particular channel as indicated by the cursor to zero delay Add Sub 100 pS Softkeys Single steps the chosen channel s delay in 100 picosecond increments Enter Delay Softkey This softkey pops up an edit window to the right side of the LCD Panel and the keypad is used to directly enter data After data is entered for one channel subsequent channels in this screen can be edited to this same value by pressing the enter key repetitively MB100 User Manual Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www artisantg com
44. OUTPUTS Data Delay 2nS in 100 ps step per channel Output Level ECL Single Ended or Differential Use level converter Pod for TTL output Connector AMP 201311 1 75 pin housing rear panel The ECL Output is connected as shown below Differential ECL Output Differential Receiver MC10EL16 Single Ended ECL Output D Differential Receiver MC10EL16 Pe er 2700hm MB100 User Manual To AMP Connector To AMP Connector 2700hm Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www artisantg com Specifications CHANNEL MONITOR OUTPUT Selection Any channel may be selected Level ECL Single ended 50 ohm to 2V Connector BNC front panel WORD SYNC OUTPUTS SYNC OUTI Format Single bit wide One pulse per pattern frame Level 0 2 peak into 50 ohm to ground Connector BNC front panel SYNC OUT2 Format Same as the above SYNC OUT except Level ECL Single ended 50 ohm to 2v termination Connector BNC rear panel DISPLAY 16 row X 32 column Back lighted LCD REMOTE GPIB Compatible with IEEE 488 2 RS 232C DB 25 connector GENERAL Size 8 H X 14 W X 17 D Power AC 115V 250W nominal Operating Temp 10 to 40 degrees C A 4 MB100 User Manual Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www artisantg com Specifications MB100TT ECL TTL Translator Pods Inputs Accepts the MB100T Single Ended or Differential EC
45. PATTERN NVRAMO LENGTH 65536 ADDR HEX DATA gt 0000 0F409104 0001 F2008435 0002 000F C569 0003 13042CC1 0004 0B803421 0005 77B09A12 0006 B0D00123 PAGE PAGE GO TO DOWN UP ADDR The Display Active Pattern message indicates the present buffer source used by the pattern output memory The pattern length number is the current length of pattern output The address field is displayed in decimal the data field is displayed in hexadecimal The HEX DATA represents the logic states for each channel in the MB100 This information is displayed with 8 hex digits to represent the 32 channels maximum available in the MB100 Unequipped channels will be filled with logic Os The most significant bits MSB for the HEX DATA display is the left most digit This hex character represents the values for channels 28 32 The least significant bits LSB for the HEX DATA display is the right most digit This hex character represents the logic values for channels 1 4 MB100 User Manual Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www artisantg com Rx Menus and Displays Interpreting the HEX DATA in your Active Pattern Display Each hex digit in your active pattern display represents the logic states for four individual channels A value of hex 0 means all 4 channels are programmed low A value of hex F means all 4 channels are programmed high A complete conversion of the hex values to their corresponding
46. S ERRORED SECONDS CLOCK LOSS SECONDS SYNC LOSS SECONDS TOTAL BITS 4 6446E 11 TOTAL ERRORS 0 AVG ERROR RATE 0 000E 00 FREQUENCY 10 00E 06 Hz CHANNELICHANNEL CHANNEL CHANNEL AGGRE 9 16 17 24 25 32 GATE Aggregate Error Display Per Channel measurements Total Bits received 0 to 1 6E 19 0 to 99 999 999 0 to 1 6E 19 Remote read out 9 9E 01 to lt 1 0E 16 1 0E 00 to 1 0E 19 Remote read out 0 to 4 000 000 000 1 Each channel of a word is individually detected for errors Per channel statistics will be accumulated and displayed for count and error rate The error rate is determined by dividing the total errors counted by the clocks Total Errors Average BER Errored Seconds MB100 User Manual Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www artisantg com MB100 User Manual Specifications accumulated since the test was started Error rates are integrated over the total test time 2 The aggregate error rate and error count will be calculated and displayed The aggregate error rate is determined by dividing the sum of the errors detected on all enabled channels by the total clocks counted times number of channels enabled Aggregated error rates are integrated over the total test time 3 A blanked channel does not contribute anything to the aggregate error rate Errors cannot be counted on any disabled channel
47. Selection PRBS 27 1 scscescsssssssssssssssessssssssssssssssssssssssssssssssssssssssssssesssssessvssesssssessassssssasevess 1 15 Verify Error Free Operations cveeccssacadeseessuacd evades cov sauce lease er WC Y Ee E HER YR RT EEE 1 16 Single Error Inject on Each Channel for Continuity Check eee 1 16 Operating Basics qe 2 1 Controls Indicators and Connectors 4 eee Leere eene ee eene eren rene eese eee to esee esee esos ese sees e eere enne a 2 2 TX Front iui teva dicate hans ogee Ge eg ee 2 2 Input Connectots oo ener Pret Gn Rated ae aeons Hives Ae ea eae eee 2 3 Output Oo ova tere Kosa entea terre teeido teretes Ferte ct Lem cues arte tire MUN LIE EET 2 3 Rear PN RI M 2 4 RX Fr nt Pate gsi eiae 2 8 Output COMME CLOTS ss n etate er oet Eee Dre RR E ERREUR DUREE SERERE PEL sued stsetackeastiecesda tanstiacedicend tea thdeey 2 9 Errot AnalyZet niece diee tbie rest s ieu e eed Pe Desi ee epe PUE Pere PESE S epis Erud diga 2 9 Rear Patel e E E E E 2 11 Changingthe Line FUSE soeia eaea RE a EEES AE AARE aaae EEE E AAEE S ERE EEEE 2 13 EC Leto TTL Translator e 2 14 TTL ECL bcr 2 15 eripe 2 17 Connection on rear panel of Tx and Rx ertet nett teet eerie dedo 2 17
48. Suet E eee 3 21 MB100 User Manual Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www artisantg com A rtisan Artisan Technology Group is your source for quality TecmoogyGroup new and certified used pre owned equipment FAST SHIPPING AND SERVICE CENTER REPAIRS WE BUY USED EQUIPMENT DELIVERY Experienced engineers and technicians on staff Sell your excess underutilized and idle used equipment TENS OF THOUSANDS OF at our full service in house repair center We also offer credit for buy backs and trade ins IN STOCK ITEMS www artisantg com WeBuyEquipment EQUIPMENT DEMOS HUNDREDS OF InstraV ea REMOTE INSPECTION LOOKING FOR MORE INFORMATION MANUFACTURERS Remotely inspect equipment before purchasing with Visit us on the web at www artisantg com 7 for more our interactive website at www instraview com information on price quotations drivers technical LEASING MONTHLY specifications manuals and documentation RENTALS ITAR CERTIFIED yop aed Contact us 888 88 SOURCE sales artisantg com www artisantg com
49. TE SETUP RS232 BAUD 300 1200 2400 lt 9600 gt PARITY NONE ODD lt EVEN gt DATA BITS 7 8 EOL CR LF LF CR CR LF XON XOFF OFF ON ECHO OFF ON 300 1200 2400 BAUD BAUD BAUD If the cursor is next to the BAUD line then the softkeys allow selection of the BAUD rate If the cursor is next to the PARITY then the parity is set to NONE EVEN of ODD DATA BITS controls the character size of the transmission EOL sets the end of line character sent by the MB100 transmitter XON XOFF allows the protocol to be turned OFF or ON ECHO sets whether the entered strings are echoed back to the terminal or not OFF does not echo typed data ON does Refer to Chapter 4 External Controllers for more information on RS 232 2 View Angle use The view angle can be adjusted by placing the cursor next to this selection available in the Tx Main Menu Press the left and right cursor keys to adjust it to one of 15 different values MB100 User Manual 3 21 Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www artisantg com TX Menus and Displays gt IDENTIFY Pressing the ENTER key next to this selection available in the Tx Main Menu displays a listing of the current software version number of installed channels and other installed options Press the ESC key to leave this menu IDENTIFICATION MICROWAVE LOGIC MULTI BERT 100 TRANSMITTER 24 CHANNELS ROM INSTALLED
50. a channel that is enabled then the softkey displays Chan Disable if the channel 1s disabled then the softkey displays Chan Enable Note Any disabled channel cannot contribute to the data synchronization or have any error measurements performed upon it 3 36 MB100 User Manual Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www artisantg com Rx Menus and Displays 2 CLOCK INPUT OPTIONS The Clock Input Options submenu available from the Rx Main Menu permits changing at the rear panel differential output port the clock polarity This submenu also permits at the rear panel differential output port the clock s delay to be adjusted by or 2 nS in 100 picosecond increments The menu appears as follows RX CLOCK INPUT CLOCK IN TRUE lt INVERT gt gt DELAY 0 1nS Delay Range 2 0ns to 2 0ns SET TO ADD SUB ENTER NOMINAL 100pS 100pS DELAY When the cursor is placed next to the CLOCK IN selection the softkeys display a selection to alter the clock output polarity If TRUE is selected then the rear panel differential ECL clock output is rising edge aligned to the data edges If INVERT is selected the rising edge falls in the middle of the data eye When the cursor is next to the DELAY choice the softkeys are displayed as above Set To Nominal Softkey Sets the particular channel as indicated by the cursor to zero delay Add Sub 100 pS Softkeys Single steps the c
51. a green LED to indicate data synchronization What this means Red LED Yellow LED SYNC Loss Errors have exceeded the Current History threshold rate set in the DATA error error SYNCHRONIZATION submenu from the Rx Main Menu Word Error A bit error on any active channel Current History has been detected error error Clock Loss Loss of the input clock to the Rx Current History NO CLOCK will light up the error error error LED Power Loss This LED lights up whenever the History Rx recovers from being turned off error or losing power only MB100 User Manual 2 9 Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www artisantg com Controls Indicators and Connectors SYNCHRONIZED LED When the green LED below the label SYNCHRONIZED is lit the internal data pattern is aligned with the received data pattern RUN STOP A test is started when the RUN STOP key on the Front Panel is cycled from Stop to Run the green LED is lighted in the switch The transition from STOP to RUN clears all error counts and totals 2 10 MB100 User Manual Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www artisantg com MB100 User Manual Controls Indicators and Connectors Rx Rear Panel Word Error Output Remote Inputs and Printer Support RZ ERROR PRINTER RS232 GPIB 00 el ie Model No Serial No Options Differential Data and Clock Outputs AC Powe
52. alculated as the number of total errors received divided by the total bits received 4 Avg Frequency This is calculated by dividing the number of words received by the time accumulated in the test period 3 26 MB100 User Manual Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www artisantg com Rx Menus and Displays Measurement Menu Rx Softkeys AGGREGATE Softkey This key displays the following menu CHAN 1 8 9 16 17 24 25 32 Softkeys These softkeys will allow the display of a group of individual channels The submenu below is a sample of the display for channels 1 8 ERROR ERROR ERRORED CHANNEL RATE TOTAL A SECONDS 0 0E 00 0 0E 00 0 0E 00 0 0E 00 0 0E 00 0 0E 00 0 0E 00 0 0E 00 TOTAL BITS CHAN 1 25E 10 CHAN CHAN CHAN CHAN AGGRE 1 8 9 16 17 24 25 32 GATE ooooooco oooocooco Channel Indicates which channel error statistics apply to Error Rate Display of the channel s error rate The error rate is calculated by dividing errors on a channel by bits channel Error Total Cumulative total of errors on a particular channel The most significant digit will appear as a when an overflow has occurred The least significant digits will continue to count if errors are still present after the overflow has occurred NOTE The Error Seconds column will only be displayed when in the aggregate measurement mode Error Seconds Any se
53. binary or logic states is shown in the following table Hex to Binary Conversion Decimal Binary Equivalent EE Logic Value for a 4 channel group highest pin lowest pin L0 0 X 3OpD9000 1 1 5 9000 2 2 000 Cor n Jo SOMI a L4 4 L0Q59 0100 4 o5 5 4 9001 J 6 6 3 42010 J 9 8 8 XPQ 410 L9 9 LQOd 170 JXG3 S B 1 J JD 411t es E eee WEM 1101 1110 1111 If your MB100 was configured with 24 channels the leftmost 2 digits will always contain 0 s If your MB100 was configured with 16 channels the leftmost 4 digits will always contain 0 s A sample hex data display with the corresponding channel state values is shown in the following table Sample Channel Data Conversion HEX MemoryContentsbyChannel mes egest ee bse 32 0 Q0000000 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 O na 1 Qqo001111 1 0 0 0 1 0 0 0 1 0 0 0 1 0 0 O na 2 000222 o 1 o JoO t o OJO 1 O O O O O na 3 0000333 11 0 0 1 1 0 0 1 1 0 0 1 1 0 O m 4 0000444 0 0 1 0 0 0 1 0 0 0 1 0 0 O 1 O n 5 ooooF29 0 0 1 1 1 0 0 1 0 1 0 0 1 1 1 f ma 6 oooooFoo j0j 0j0j0 0 0O O O 1 1 J 1 1 O O O OO 7 0000AAAA 1 0 1 0 1 0 1 0 1
54. ble locations for pattern storage Move the cursor up to the EDIT ACTIVE PATTERN line and press the ENTER key Press the ENTER DATA softkey the softkeys will be replaced with a set of pattern editing function keys for pre defined patterns Press the softkey under FILL W PR 7 After one second the display will show the first seven address and data words The buffer has been loaded with a pseudorandom sequence of length 127 bits This pattern resides in a low speed battery backed buffer RAM and has been transferred automatically to the high speed ECL system output RAM Repeat the pattern editing steps on the MB100 Receiver Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www artisantg com First Time Operation Verify Error Free Operation l At this point the Receiver should be operating error free No red LED lights should be lit on the front panel of the Receiver Yellow LED lights indicate the history of an event Press the Receiver s RUN STOP key on the front panel the green LED in the switch should be unlit indicating that the unit is not collecting more data and values of collected data is frozen in all displays Press the RUN STOP key again The green LED in the switch should be lit indicating that the unit is running collecting and analyzing incoming data This action also clears all error counts and restarts the integration period of a new test Single Error Inject on Each Chann
55. by four bits This creates a random pattern between channels Test 2 Results Total Seconds 10 717 3 hr Total Bits 4 38 x 10 Errors 0 Error Rate 1 x 10 Test 2 Conditions Data Rate 110 Mbps Cable Length 1 meter PRBS Code 2 1 NRZ For this test the PRBS code applied to the four driver inputs was offset by four bits This creates a random pattern between channels Test 3 Conditions Data Rate 110 Mbps Cable Length 5 meter PRBS Code 2 1 NRZ For this test the PRBS code applied to the four driver inputs was offset by four bits This creates a random pattern between channels Test 3 Results Total Seconds 10 050 3 hr Total Bits 4 x 10 Errors 0 Error Rate lt 1 x 10 MB100 User Manual 3 53 Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www artisantg com Applications Conclusion These tests concluded BER rates for various cable lengths can be easily measured BER tests are a way of determining that the PRBS patterns were transmitted error free across the link This was conducted by applying a pattern to the input and monitoring the receiver output signal 3 54 MB100 User Manual Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www artisantg com Applications Validation Testing or Final Manufacturing Testing MB100 User Manual Sample Application 3 The MB100 test set can be used to validat
56. by pressing the ENTER key next to this line The softkeys channel 1 8 9 16 17 24 25 32 and Enable Disable are activated ENABLE ERRORS PER CHANNEL Channel ENABLED ENABLED ENABLED ENABLED ENABLED DISABLED DISABLED DISABLED CHAN CHAN CHAN CHAN CHAN 1 8 9 16 17 24 25 32 ENABLE Chan 1 8 9 16 17 24 25 32 Softkeys The channel number softkeys will only appear for the channels that are installed These keys allow the display of different groups of 8 channels Chan Enable Disable Softkey This key enables disables error inject capability on a channel Move the cursor key to the channel to enable or disable Press the enable disable softkey to change its error inject status If the cursor is on a channel that is enabled then the softkey displays Chan Disable if the channel is disabled then the softkey displays Chan Enable Note Any disabled channel cannot have single or rate errors injected upon it MB100 User Manual Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www artisantg com TX Menus and Displays gt PER CHANNEL DELAY The Per Channel Delay submenu available from the Tx Main Menu controls the delay setting of each channel of the MB100 Transmitter The submenu appears as follows PER CHANNEL DELAY Delay Range 2 0 ns to 2 0ns gt Channel Delay 0 0 nS 0 5 nS 1 8nS 0 5 nS 0 1 nS 0 0 nS 0 0 nS 2 0 nS CHAN CHAN CHAN CHAN CHA
57. cable 3 50 MB100 User Manual Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www artisantg com Applications Example of BER Test Circuit Differential drivers and receivers are used in many uncomplicated point to point configurations Data transmission between system components over long distances and or under high noise conditions is difficult with single ended drivers and receivers Differential digital transmission permits transmission at higher rates over longer distances This is because the effects of external noise sources and cross talk are much less pronounced on the data signal Differential signals are insensitive to common mode voltage The following circuit diagram details the test circuit that was used Twisted Pair Cable Length L Q CHANNEL 1 O O Q CHANNEL 2 O Q DR Drive RT 120 Ohms typical REC Receiver Figure 3 3 Differential BER Test Circuit MB100 User Manual 3 51 Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www artisantg com Applications 3 52 Example of Test Procedure A parallel high speed BER Transmitter Receiver test set MB100 was employed for the tests The transmitter was connected to the driver inputs and the receiver outputs were connected to the BER receiver inputs Different cable lengths and data rates were tested The BER Tester was configured to provide a PRBS Pse
58. cond in which at least one error has occurred This measurement is particularly useful in determining if errors were bursty or isolated in occurrence MB100 User Manual 3 27 Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www artisantg com RX Menus and Displays SYNC SWEEP The SYNC Sweep submenu from the Rx Main Menu controls the Channel Synchronization Sweep feature SYNC SWEEP 9 10 11 12 13 14 15 16 24 32 START ABORT SWEEP SWEEP Initially the sweep will not be in progress and only the START SWEEP softkey will be displayed Once the sweep is in progress the only key displayed will be the ABORT SWEEP softkey The SYNC SWEEP is used to acquire Pattern SYNC on incoming signals which have a combination of good and bad channels where the bad channels prevent an overall pattern SYNC This function will enable the channels in groups of 4 see above so that the good channels can be isolated and Pattern SYNC acquired When Pattern SYNC is achieved SYNC Disable can be turned ON and the remaining channels enabled so that the proper alignment is attained even though Pattern SYNC will probably be lost Note that the channel enables will be changed during the SYNC SWEEP function The channels that were disabled prior to the start of the sweep will not be enabled The remaining channels may be disabled during the sweep but all of the channel enables will be restored During the s
59. e MAIN MENU press the ESC key multiple presses of the ESC key may be necessary to get to the highest level of the menus Main Menu Pattern Edit Display Error Injection Per Channel Delay Clock Input Options Clock Output Options Channel Monitor Selection Remote Setup View Angle use lt gt keys Identify 3 2 MB100 User Manual Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www artisantg com MB100 User Manual TX Menus and Displays PATTERN EDIT DISPLAY The Pattern Edit Display submenu available from the Tx Main Menu controls the selection display and editing of the internal pattern memory The submenu appears as follows PATTERN ACTIVE PATTERN One of 3 choices below DISPLAY ACTIVE PATTERN EDIT ACTIVE PATTERN ACTIVE PATTERN ROM ACTIVE PATTERN NVRAMO ACTIVE PATTERN NVRAM1 PRBS PHASE DELAY 0 BITS PRBS PHASE DELAY 4 BITS The Pattern Active Pattern indicates which of the three types of PATTERN memory sources ROM NVRAMO or NVRAM1 the system is currently using The MB100 contains two battery backed memory and a single optional ROM pattern for application specific patterns The two battery backed RAM locations are labeled NVRAMO and NVRAMI The MB100 uses the NVRAM as an edit space separate from the high speed pattern output memory Each time an edit is completed the edit buffer is block transferred to the high speed pattern output memory The act
60. e Main Menu The softkeys channel 1 8 9 16 17 24 25 32 and enable disable are activated Note The present test must be stopped for the Enable Disable softkey to be displayed ENABLE MEASUREMENT PER CHANNEL Change only when test is stopped Channel ENABLED ENABLED ENABLED ENABLED ENABLED DISABLED DISABLED DISABLED CHAN CHAN CHAN CHAN CHAN 1 8 9 16 17 24 25 32 ENABLE Chan 1 8 9 16 17 24 25 32 Softkeys The channel number softkeys will only appear for the channels that are installed These keys allow the display of different groups of 8 channels Chan Enable Disable Softkey This key enables disables received error statistics Move the cursor key to the channel to enable or disable Press the enable disable softkey to change its status A warning message see the next menu screen will be displayed indicating that changing the status will clear all previously collected data Press the Display Only softkey to cancel any further operations or press the Change Enables softkey to continue MB100 User Manual 3 35 Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www artisantg com RX Menus and Displays ENABLE MEASUREMENT PER CHANNEL WARNING WARNING WARNING Changing which channels are enabled for measurement will erase all previously collected data Are you sure about this NO YES SAVE DATA ERASE DATA DISPLA CHANGE ONLY ENABLE If the cursor is on
61. e bus systems fiber links or microprocessors A test of this type could also be used as a final manufacturing test of these systems In the diagrams the follow three tests can be undertaken e Parallel input to Serial output e Serial input to Parallel output e Parallel input to Parallel output Equipment List An External Clock Source is required Examples are Tek GB700 or GB1400 or other MB100 Tx MB100 Rx MB100 ECL to TTL and TTL to ECL pods RG178 multiconnector cable 3 55 Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www artisantg com Applications mB 100 parallel mB 100 parallel gBERT Serial Rx BUS Serial Tx Interface EN Interface Interface Under Test Figure 3 4 Connections Serial and Parallel Test Sets n 1 MUX Serial BERT Parallel BERT f n Input Clock Source fSERIAL Clock Figure 3 5 Fiber Channel Link and Multiplexer Testing 3 56 MB100 User Manual Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www artisantg com Applications Testing Analog Digital Converters Sample Application 4 Clock Source Figure 3 6 Testing Analog Digital Converters Analog Digital converter accuracy is usually accepted as or one Least Significant Bit LSB However the MB100 does not recognize the difference between the Least Significant Bit LSB or Most Significant
62. ear panel differential ECL clock output is rising edge aligned to the data edges If INVERT is selected the rising edge falls in the middle of the data eye When the cursor is next to the DELAY choice the softkeys are displayed as above Set To Nominal Softkey Sets the particular channel as indicated by the cursor to zero delay Add Sub 100 pS Softkeys Single steps the chosen channel s delay in 100 picosecond increments Enter Delay Softkey This softkey pops up an edit window to the right side of the LCD Panel and the keypad is used to directly enter data Data is entered in microsecond increments For example to enter a delay of 300 psec enter 0 3 Note Changing the clock polarity or altering the clock delay affects the rear panel differential output only The Tx front panel clock outputs such as Word SYNC Word Clock Word Clock 2 are not affected by changes made to this menu screen MB100 User Manual Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www artisantg com TX Menus and Displays gt CHANNEL MONITOR SELECTION This submenu available from the Tx Main Menu selects a channel and copies an ECL compatible copy of this channel to the front panel BNC jack A 50 ohm to 2VDC termination is required for proper operation When this submenu is entered a reverse video highlight box is displayed for one of the channels To select a different channel move the reverse video highligh
63. el for Continuity Check 1 Press the ESC key repeatedly on the transmitter until the Main Menu is displayed Move the cursor to the ERROR INJECTION selection and press the ENTER key Press the ENTER key again to display the single error inject menu Press the ESC key on the Receiver until the Main Menu is displayed Move the cursor to the MEASUREMENT menu choice and press the ENTER key A menu is displayed that is the aggregate of all received channels An average frequency is also displayed it should indicate the average frequency since the start of the test approximately 1 000E 6 Hz Press the softkey below the CHAN 1 8 function This will display the error count and rate of each individual channel At this time the counts should read zero On the Transmitter press the softkey below the ERROR INJECT function A brief message will be displayed on the transmitter indicating the error was injected The receiver s error count for channel one should display and the word error LED should light for about 1 2 second the yellow history LED should remain lighted indicating a word error event had occurred Move the highlighted box on the Transmitter to channel 2 with the cursor and press the ERROR INJECT key again Channel 2 s error count should be 1 at this point Press the Receiver s AGGREGATE DISPLAY softkey The count total should be 2 with 2 errored seconds recorded Repeat the above sequence for all installed channels If any channel d
64. ern cycle When terminated into 50 ohms the output will provide 2 0 0 5 volt referenced to ground Word Clock An ECL compatible clock output is provided from a BNC jack An internal 510 ohm to 5 2 volt pulldown is provided to allow viewing on an oscilloscope Word Clock 2 An ECL compatible half rate clock is provided from a BNC jack An internal 510 ohm to 5 2 volt pulldown is provided to allow viewing on an oscilloscope Channel Monitor An ECL compatible copy of an individual channel is copied to the front panel BNC jack The channel to be output is selected in the CHANNEL MONITOR sub menu An internal 510 ohm to 5 2 volt pulldown is provided to allow viewing on an oscilloscope MB100 User Manual 2 3 Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www artisantg com Controls Indicators and Connectors 2 4 Tx Rear Panel Multiple Unit SYNC In Out Remote Control Ports EXT SYNC WORD SYNC INPUT OUTPUT RS232 i Model No Serial No Options 115 VAC Er Differential Data and Clock Outputs AC Power Input Figure 2 2 Tx Rear Panel of MB100 Tx Parallel Data Output Connector An ECL differential pair option is provided on 50 ohm RG178 coaxial cable for each channel output as well as SYNC output clock output and clock 2 output Each output is pulled down at the source by 270 ohms to 5 2 volts The differential termination should be 100 ohms resistive An differe
65. escaler external clock required Up to 3 5 gigabits of aggregate data rate up to 32 channels times 110 Mbits sec Single and error rate injection Channel monitor front panel output High quality differential ECL outputs optional Optional ECL to TTL translator pod MB100R Automatic Parallel Data Synchronization Programmable Error Thresholds for Resynchronization Error Total Rate Calculations on a Per Channel and Aggregate Basis Channel Masking Feature for Unused Channel s High quality differential ECL inputs optional Optional TTL to ECL translator pod Both Tx and Rx 1 4 Monitor and capture each and every bit on each and every channel not statistical process Clock delay adjustment of 2 nanoseconds ns per channel in 100 picosecond ps increments plus inversion GPIB and RS 232 operation MB100 User Manual Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www artisantg com Product Description Configuration Examples Simplified diagrams illustrating different MB100 configurations follow Loopback Cable Device Under Test TTL side DUT to x ECL POD Pre scale Clock In Clock Source 1 4 GHz max Figure 1 2 Typical Connection for testing Parallel to Parallel Interfaces MB100 Tx MB100 Rx 16 24 or 32 16 24 or 32 Channel ECL Channel ECL Single Ended Single Ended MB100 Extender Cable 16 Channel S E 24 Channel S E 32 Channel S E Figure 1 3 Sin
66. fferential Receiver Extender cable not included 1 10 MB100 User Manual Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www artisantg com Product Description Nomenclature Description MB100TT ECL to TTL translator Included ten SSMB SMA cables with barrel adapters and extender cable based on MB100 options Opt 11 16 channel MB100 ECL to TTL translators Opt 22 24 channel MB100 ECL to TTL translators Opt 31 32 channel MB100 ECL to TTL translators Nomenclature Description MB100RT TTL to ECL translator Included ten SSMB SMA cables with barrel adapters and extender cable based on MB100 options Opt 11 16 channel MB100 TTL to ECL translators Opt 22 24 channel MB100 TTL to ECL translators Opt 31 32 channel MB100 TTL to ECL translators Cables now included with all configurations The necessary cables will now be included with the MB100 Tx Rx pair units depending on the order configuration Below is a listing of the cables that may be ordered through Tektronix as 9 digit part numbers MB100 User Manual 1 11 Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www artisantg com First Time Operation First Time Operation Turning On the MB100 The AC power connector on the rear panel of the unit accepts 115 VAC input only The Transmitter comes with a three conductor AC power cord Do not plug the cord into any outlet other than an app
67. gle Ended ECL Configurations 16 24 or 32 Channel Self Test Application The MB100 Extender Cable is a standard accessory depending on the number and type of channels ordered MB100 User Manual 1 5 Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www artisantg com Product Description MB100 Tx 16 24 or 32 Channel ECL Single Ended Custom Cable by customer or optional MB100 Device Cable 16 Channel S E 24 Channel S E 32 Channel S E MB100 Rx 16 24 or 32 Channel ECL Single Ended Custom Cable by customer or optional MB100 Device Cable 16 Channel S E 24 Channel S E 32 Channel S E Figure 1 4 Single Ended ECL Configurations 16 24 or 32 Channel Device Testing Application MB100 Tx 16 24 or 32 Channel ECL Differential MB100 Extender Cable 16 Channel DIFF 24 Channel DIFF 32 Channel DIFF Figure 1 5 Differential ECL Configurations MB100 Rx 16 24 or 32 Channel ECL Differential 16 24 or 32 Channel Self Test Application MB100 User Manual Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www artisantg com Product Description MB100 Tx MB100 Rx 16 24 or 32 16 24 or 32 Channel ECL Channel ECL Differential Differential Custom Cable by customer Custom Cable by customer or optional MB100 Device Cable or optional MB100 Device Cable 16 Channel DIFF 16 Channel DIFF 24 Channel DIFF 24 Channel DIFF
68. hen using an external clock source is to check the interface requirements Set the clock frequency on the GB700 to 400 MHz To do this push the FREQ button on the GB Tx and use the STEP button and the two black arrow keys to select 400000 in the Frequency display Inthe OUTPUT section push the CLOCK button and adjust the amplitude to 1 00 volt and the offset to 2 00 volts Since only the clock output will be used it is not necessary to perform any additional adjustments Connect an SMA SMA coax cable between the CLOCK output jack on the GB Tx and the PRESCALE CLOCK Input on the MB100 Tx MB100 Setup The following steps will be performed on the MB100 Tx and Rx 1 Push the ESC button to be sure that you are at the main menu of both the Tx and Rx On the MB100 Rx be sure that the green LED is off in the RUN STOP button If it is not push it once Ifthe screen s on the MB100 Tx or Rx are not easy to read use the up and down cursor keys to select the VIEW ANGLE entry Now use the side cursor keys to adjust the view angle Now to set up the pattern for both the Tx and Rx In this case we will use a 2P 1 PRBS pattern With the cursor keys select PATTERN EDIT DISPLA Y on both the Tx and Rx Push the ENTER button MB100 User Manual Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www artisantg com Applications 4 On both select
69. hosen channel s delay in 100 picosecond increments Enter Delay Softkey This softkey pops up an edit window to the right side of the LCD Panel and the keypad is used to directly enter data Data is entered in microsecond increments For example to enter a delay of 300 psec enter 0 3 Note Changing the clock polarity or altering the clock delay affects the rear panel differential output only The Tx front panel clock outputs such as Word SYNC Word Clock Word Clock 2 are not affected by changes made to this menu screen MB100 User Manual 3 37 Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www artisantg com RX Menus and Displays 3 38 gt DATA SYNCHRONIZATION The Data Synchronization submenu available from the Rx Main Menu controls the SYNC circuit that aligns the internal data pattern with that of the received data pattern The menu appears as follows DATA SYNCHRONIZATION SYNCHRONIZATION lt ENABLED gt DISABLED gt SYNC THRESHOLD ERRORED WORDS WORD CLOCKS 256 4096 16 16384 64 4096 16 32768 lt 16 4096 gt 16 65536 16 8192 1 65536 64 16 16 MORE 4096 4096 8192 CHOICE When the cursor is placed next to the Data Synchronization line a softkey will be displayed that allows the alternate selection to be chosen The internal SYNC circuits will be disabled and the Synchronized green LED will be illuminated If the disabled selection is chosen the SYNC threshold
70. is completed the edit buffer is block transferred to the high speed pattern output memory The active pattern is chosen by moving the cursor to one of the three lines labeled ACTIVE PATTERN and pressing the ENTER key The selected active pattern will be indicated by an reverse video highlight box If the ROM option is not installed then an error message indicating an invalid choice was selected To double check on installed equipment options go the Tx Main Menu move the cursor to the IDENTIFY menu choice and press the ENTER key The PRBS Phase Delay is indicated by a reverse video highlighted box To change the selection move the cursor to one of the two lines and press the ENTER key The highlight box will change accordingly The PRBS Phase Delay is used during the Pattern Edit It is used for Pattern Fills of PR 7 and PR 15 With a phase delay of 0 all channels will be identical in phase With a phase delay of 4 bits the pseudorandom sequence will be delayed in phase on each channel by 4 data bits MB100 User Manual 3 29 Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www artisantg com RX Menus and Displays 3 30 DISPLAY ACTIVE PATTERN The DISPLAY ACTIVE PATTERN selection from the Rx Pattern Edit Display submenu leads to a screen that allows non destructive viewing of the currently used output pattern A sample of this screen is shown below DISPLAY ACTIVE PATTERN EDIT ACTIVE
71. is selected the following menu appears REMOTE SETUP GPIB ADDRESS 15 31 OFFBUS TERMINATION EOILF or EOI The softkeys allow editing of values depending where the cursor is placed If next to the address field the softkey SET NEW ADDRESS appears Press it to display a pop up edit window for altering the GPIB address Numbers from 1 to 30 are acceptable with an entry of 31 placing the MB100 Receiver offbus Refer to Chapter 4 External Controllers for more information on GPIB If next to TERMINATOR then softkeys are displayed which allow the selection of the end of line terminator for GPIB commands If the RS232 submenu is chosen the following is displayed MB100 User Manual Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www artisantg com Rx Menus and Displays REMOTE SETUP RS232 BAUD 300 1200 2400 lt 9600 gt PARITY NONE ODD lt EVEN gt DATA BITS 7 8 EOL lt CR LF gt LF CR CR LF XON XOFF lt OFF gt ON ECHO OFF lt ON gt If the cursor is next to the BAUD line then the softkeys allow selection of the BAUD rate If the cursor is next to the PARITY then the parity is set to NONE EVEN of ODD DATA BITS controls the character size of the transmission EOL sets the end of line character sent by the MB100 Receiver XON XOFF allows the protocol to be turned OFF or ON ECHO sets whether the entered strings are echoed back to the terminal or not O
72. ive pattern is chosen by moving the cursor to one of the three lines labeled ACTIVE PATTERN and pressing the ENTER key The selected active pattern will be indicated by an reverse video highlight box see menu screen above for example If the ROM option is not installed then an error message indicating an invalid choice was selected To double check on installed equipment options go the Tx Main Menu move the cursor to the IDENTIFY menu choice and press the ENTER key The PRBS Phase Delay is indicated by a reverse video highlighted box see menu screen above for example To change the selection move the cursor to one of the two lines and press the ENTER key The highlight box will change accordingly The PRBS Phase Delay is used during the Pattern Edit It is used for Pattern Fills of PR 7 and PR 15 With a phase delay of 0 all channels will be identical in phase With a phase delay of 4 bits the pseudorandom sequence will be delayed in phase on each channel by 4 data bits 3 3 Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www artisantg com TX Menus and Displays 3 4 DISPLAY ACTIVE PATTERN The DISPLAY ACTIVE PATTERN selection from the Tx Pattern Edit Display submenu leads to a screen that allows non destructive viewing of the currently used output pattern DISPLAY ACTIVE PATTERN DISPLAY ACTIVE PATTERN NVRAMO LENGTH 65536 ADDR HEX DATA 0000 0F409104 0001 F2008435 00
73. ividual word patterns The ECL inputs are connected as shown below Differential ECL Input Ol From AMP Differential Connector Receiver MC10EL16 MB100 User Manual Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www artisantg com MB100 User Manual Specifications Single Ended ECL Input Q From AMP Differential Connector Receiver gt 2 0 Vdc MC10EL16 VBB SYNCHRONIZATION THRESHOLD Threshold Level Selectable between 256 4096 1 65k in 8 levels OUTPUTS Word Error Format RZ positive true pulse per each word error Level ECL 50 ohm to 2v termination required Connector BNC rear panel Word Sync 0 2v with 50 ohm terminated to ground positive pulse Connector BNC front panel A 7 Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www artisantg com Specifications A 8 MEASUREMENTS Average frequency System word clock frequency 10K Hz resolution Bit Error detection Simultaneous parallel measurements Aggregated BER measurements Total Bits received 0 to 1 6E 19 0 to 999 999 999 0 to 1 6E 19 Remote read out Total Errors Averaged BER 9 9E 01 to lt 1 0E 16 Zero error caused BER of 0 0E 00 0 to 1 6E 19 Remote read out Others Elapsed Seconds Errored Seconds Synchronization Loss Seconds and Clock Loss Seconds 0 to 4 000 000 000 AGGREGATE MEASUREMENTS ELAPSED SECOND
74. lecommunications and data communications equipment networks How This Manual is Organized Conventions MB100 User Manual This manual is divided into four sections Getting Started Operating Basics Reference and Appendices Getting Started provides an overview of the MB100 and describes first time operation Operating Basics describes the hardware controls indicators connectors and display elements for Tx Rx the ECL to TTL converter the TTL to ECL converter and the cabling required Reference describes the LCD Menus and Screens It also provides a representative sample of Applications The Appendices provide a listing of specifications This manual uses the following conventions e The names of front panel controls and menus appear in all upper case letters for example TRANSMIT and HELP e Names appear in the same case in this manual as they appear on the display screens of the MB100 e Within a procedure a specific button to be pressed or a parameter to be selected appears in boldface print Some procedures require several iterations of highlighting parameters and selecting choices Some procedures may require more than one menu button or menu page selection as well xi Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www artisantg com Related Manuals The following document is also available for the MB100 e The MB100 Multi Channel BER Tester Programmer Manual Tektr
75. ly integrated test solution for high reliability bus oriented subsystems or components requiring low bit error rate performance as well as problem isolation for both engineering and manufacturing The MB100 consists of the MB100T Transmitter and the MB100R Receiver There is also the MB100TT ECL to TTL Translator pod and the MB100RT TTL to ECL Translator pod This entire system is a fully programmable pattern generator and error detector used for parallel stimulus and testing An external clock source is required either a word clock at the channel rate direct clock or an aggregate clock that the MB100 will divide down The MB100 does NOT operate with a gapped clock It requires a continuous clock and the minimum clock frequency is 50 kHz The MB100 Tx and MB100 Rx are separate standalone instruments providing full flexibility in both parallel pattern generation and error detection Either system is expandable up to 32 channels per unit The MB100 is an ideal tool to be used in parallel interface circuits User applications may include e Fiber Channel HPPI SDH Fast Ethernet Gigabit Ethernet e High speed communications bus device testing e Serial to Parallel Conversion Devices e Parallel to Serial Conversion Devices 1 3 Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www artisantg com Product Description Features and Capabilities MB100T High speed clock input pr
76. mentation Guaranteed 888 88 SOURCE www artisantg com Specifications A 2 CLOCK OUTPUTS CLK OUTI Level ECL Differential or Single Ended Rate Same as the data rate 110MHz max Delay range 2nS 100 pS step Polarity True Invert selectable Connector AMP 201311 1 75 pin connector housing rear panel CLK OUT2 Level ECL Differential or Single Ended Rate 1 2 data rate Connector AMP 201311 1 75 pin connector housing rear panel CLK OUT3 Same as the above CLK OUT2 except Level ECL Single ended 50 ohm to 2v termination Rate Same as the data rate Connector BNC front panel CLK OUT4 Same as the above CLK OUTI except Level ECL Singe ended 50 Ohm to 2v termination Rate 1 2 data rate Connector BNC front panel PATTERN GENERATOR No of channels Data format Data Pattern Pattern length Memory size 16 24 or 32 Channels NRZ Programmable or PRBS 27 1 and 215 1 Programmable 64K max 1 word resolution 64K bit deep per channel Static pattern storage Battery backed two 64K individual word patterns MB100 User Manual Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www artisantg com ERROR INSERTION Controls Single Error Selected channel only Multiple Error Error rate of 10 n 3 4 5 6 and 7 Error insert into Enabled channels Specifications Error injection can be Enable Disabled on a per channel basis DATA
77. nd care Tektronix shall not be obligated to furnish service under warranty a to repair damage resulting from attempts by personnel other than Tektronix representatives to install repair or service the product b to repair damage resulting from improper user or connection to incompatible equipment or c to service a product that has been modified or integrated with other products when the effect of such modification or integration increases the time or difficulty of servicing the product THIS WARRANTY IS GIVEN BY TEKTRONIX WITH RESPECT TO THIS PRODUCT IN LIEU OF ANY OTHER WARRANTIES EXPRESSED OR IMPLIED TEKTRONIX AND ITS VENDORS DISCLAIM ANY IMPLIED WARRANTIES OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE TEKTRONIX RESPONSIBILITY TO REPAIR OR REPLACE DEFECTIVE PRODUCTS IS THE SOLE AND EXCLUSIVE REMEDY PROVIDED TO THE CUSTOMER FOR BREACH OF THIS WARRANTY TEKTRONIX AND ITS VENDORS WILL NOT BE LIABLE FOR ANY INDIRECT SPECIAL INCIDENTAL OR CONSEQUENTIAL DAMAGES IRRESPECTIVE OF WHETHER TEKTRONIX OR THE VENDOR HAS ADVANCE NOTICE OF THE POSSIBILITY OF SUCH DAMAGES MB100 User Manual iii Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www artisantg com How to Reach Customer Service Mailing Address Customer and Sales Support Center Direct Fax E Mail Web Site iv If you have any questions regarding the operation maintenance repair or application of your Tektronix eq
78. nnel 2 Channel 3 Channel 4 Channel 5 Channel 6 Channel 7 Channel 8 0O A SSMB Connectors TTL ECL TTL ECL TTL ECL TTL ECL TTL ECL TTL ECL TTL ECL TTL ECL b To MB100 Rx MB100 User Manual Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www artisantg com Index A Accessories Standard Accessories 1 9 Optional Accessories usse 1 9 Applications Differential Signaling Devices BER Testing 3 50 Simulate Four Channels of Data through the Device Under Test 3 45 Testing Analog Digital Converters 3 57 Validation Testing or Final Manufacturing Testing 3 55 B Beep Volume Menu Rx 3 41 C Cabling uester etes 2 17 Connection on rear panel of Tx and Rx 2 17 Key details of Rear Panel cabling 2 18 Subminiature SMB SSMB cable 2 18 Channel Monitor Selection Menu TXx 3 19 Clock Direct saaddtesdebiedicdientiainn nee 3 16 Prescaled iiconsseauseeie ees 3 16 Clock Input Options Menu Rx 3 15 3 37 Tx 3 15 3 37 Clock Output Options Menu Tx 3 18 Controls Indicators and Connectors 2 2 TX Front Panel 2st tete toits 2 2 Input Connectors eese 2 3 Output Connectors sess 2 3 Rear Panel
79. nnenenen enne 2 12 2 7 Rear Panel of MB100 showing AC Power Input ssseseeseeeeeeeerenenenemee nennen 2 13 2 8 Front Panel of ECL to TTL Translator Pod for MB100 ssssssseeeneneee 2 14 2 9 Rear Panel of ECL to TTL Translator Pod for MB100 sss 2 14 2 10 Front Panel of TTL to ECL Translator Pod for MB100 ssssseseeenennnnne 2 15 2 11 Rear Panel of TTL to ECL Translator Pod for MB100 ssssssseeeee 2 15 2 12 Setup of MB100 Tx Rx ECL to TTL converter and TTL to ECL converter 2 16 2 13 MB100 Tx to UUT Input recte eere een err ice d e e er eere nde 2 19 2 14 Custom Inputs and Outputs essen nennen eene nennen trennen retener 2 19 3 1 Direct Clock Input Coupling Selections esee 3 17 3 2 Connection diagram Tx Rx ECL to TTL and TTL to ECL pods sss 3 45 3 3 BER Test CiECUIC oreet pt de epu d Pie de rU PU Fes eue e eed eeu oes 3 51 3 4 Connections Serial and Parallel Test Sets eee 3 56 3 5 Fiber Channel Link and Multiplexer Testing eeeeeeeeeeeeeeneeeneenrenennen ene 3 56 3 6 Testing Analog Digital Comverters cccesccesecsesseceseeseeeseeeseeeeeeeeeeseceseeeaecaeceaecseecaeeeaeeeeecneeenes 3 57 viii MB100 User Manual Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www artisantg com General Safety Summa
80. ntial line receiver is recommended for optimum performance The connector housing is an AMP type 20131101 each contact is an AMP 226537 2 receptacle pin The mating connector is an AMP type 201310 1 housing with an AMP type 51565 2 pin 4 diagram of the pinout follows on the next page GPIB Standard D type 24 pin GPIB connector All signals and pins conform to standard GPIB pin out protocol RS 232 Standard 25 pin female D type connector Unit is configured as an RS 232 Data Circuit Terminating Equipment DCE SYNC Output Option A SYNC output is provided that allows two MB100 Transmitters to be connected together This output is a single logic low pulse one bit wide that synchronizes the word generators The level is ECL a 50 ohm 2VDC termination is supplied by the SYNC INPUT MB100 User Manual Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www artisantg com MB100 User Manual Controls Indicators and Connectors SYNC Input Option A single SYNC input is provided for connecting multiple transmitters together A single active low pulse causes the transmitter s address generator to restart Input level required is ECL internally terminated 50 ohms to 2VDC This input is compatible with the SYNC output on the MB100 rear panel A single 3 foot maximum RGS58 coaxial cable can be used to connect the SYNC output of a master transmitter to a SYNC input of a receiver CHAN 1 TRUE C
81. ock Input Coupling A simplified diagram of the direct clock input AC and DC coupling is shown below MB100 Direct Clock Input AC Coupling into 50 Ohms simplified diagram ania Voltage To MB100 Tx comparatg Internal Clock Circuitry 0 0 Vdc input threshold Direct Clock Input TTL DC Coupling simplified diagram 50 ohm input impedance 25 ohm Voltage comparatg To MB100 Tx Internal Clock Circuitry ES 1 0 Vdc input threshold this means 2 0 Vdc threshold for external clock input due to voltage divider Figure 3 1 Direct Clock Input Coupling Selections MB100 User Manual 3 17 Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www artisantg com TX Menus and Displays 3 18 CLOCK OUTPUT OPTIONS The Clock Output Options submenu available from the Tx Main Menu permits changing at the rear panel differential output port the clock polarity This submenu also permits at the rear panel differential output port the clock s delay to be adjusted by or 2 nS in 100 picosecond increments The menu appears as follows TX CLOCK OUTPUT CLOCK OUT TRUE lt INVERT gt gt DELAY 0 1nS Delay Range 2 0ns to 2 0ns SET TO ADD SUB ENTER NOMINAL 100 pS 100 pS DELAY When the cursor is placed next to the CLOCK OUT selection the softkeys display a selection to alter the output of the clock polarity If TRUE is selected then the r
82. oes not record an error check the PER CHANNEL ENABLE menus for error injection on the Transmitter and error collection on the Receiver This completes the verification of the MB100 Transmitter and Receiver MB100 User Manual Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www artisantg com Operating Basics This chapter describes the MB100 Multi Channel BER Tester hardware controls indicators connectors and display elements for the Tx the Rx the ECL to TTL converter the TTL to ECL converter and the cabling required MB100 User Manual Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www artisantg com 2 1 Controls Indicators and Connectors Controls Indicators and Connectors Tx Front Panel MB100 TX Enter ESC Clock Inputs Clock Outputs Prescale Direct Word SYNC Clock Clock Word Clock Word Clock 2 Channel Monitor Figure 2 1 Tx Front Panel of MB100 Multiline LCD Display Numeric Keypad Data Entry To the right of LCD display is a hexadecimal keypad used for data entry in applicable sub menus There is also a key a decimal key and auxiliary F1 and F2 keys Cursor Keys To the right of numeric keypad is a set of four cursor control keys The UP and DOWN keys are used to move vertically in each menu The left and right keys move selected fields in certain submenus 2 2 MB100 User Manual Artisan Technology Group
83. of pattern output The address field is displayed in decimal the data field is displayed in hexadecimal Page Down Page Up Softkeys Advances the displayed address and data combination by one screen Go To Addr Softkey The Go to Address selection pops up a data entry field to type in a decimal address to advance the display screen to If displayed data appears in an reverse video manner in the display window then this is data contained in the pattern edit memory buffer but is beyond the set length of the current output pattern Pattern Length Softkey Pops up a data entry box that allows the current pattern length to be altered Enter a decimal number in the range of 1 to 65536 and press the ENTER key or press the ESC key to exit the data entry mode without changing the current value MB100 User Manual 3 33 Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www artisantg com RX Menus and Displays The Enter Data softkey at the Rx Edit Active Pattern submenu activates another set of softkeys and a pop up data entry window that allows pattern definition on a per byte basis or predefined patterns to fill the pattern memory ENTER DATA PRESS ENTER TO SAVE NEW DATA 00000000 PRESS ESC TO CANCEL FILL W FILL W FILL W FILL W FILL W ZEROS ADDR PR 7 PR 15 ROM If none of the softkeys are chosen then data can be entered at the present address by using the data entry keys and pre
84. onix part number 070 9476 00 describes how to control the MB100 using an instrument controller Certifications and Compliances CSA Certified Power Cords CSA Certification includes the products and power cords appropriate for use in the North America power network All other power cords supplied are approved for the country of use xii MB100 User Manual Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www artisantg com Getting Started This chapter describes the MB100 Multi Channel BER Tester and provides a list of standard and optional accessories The MB100 consists of the MB100T Transmitter and the MB100R Receiver There is also the MB100TT ECL to TTL Translator pod and the MB100RT TTL to ECL Translator pod This entire system is a fully programmable pattern generator and error detector used for parallel stimulus and testing An external clock source is required either a word clock at the channel rate direct clock or an aggregate clock which the MB100 will divide down In addition this section explains how to operate the MB100 for the first time and verifying that the Rx and Tx are operating properly 1 1 MB100 User Manual Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www artisantg com Product Description Product Description MB100R MB100T MB100 RX 4 Data Entry N MB100 TX
85. r Input Figure 2 5 Rx Rear Panel of MB100 Rx Parallel Data Output Connector An ECL differential pair option is provided on 50 ohm RG178 coaxial cable for each channel output as well as clock output Each output is pulled down at the source by 270 ohms to 5 2 volts The differential termination should be 100 ohms resistive An differential line receiver is recommended for optimum performance The connector housing is an AMP type 20131101 each contact is an AMP 226537 2 receptacle pin The mating connector is an AMP type 201310 1 housing with an AMP type 51565 2 pin A diagram of the pinout follows on the next page GPIB Standard D type 24 pin GPIB connector All signals and pins conform to standard GPIB pin out protocol RS 232 Standard 25 pin female D type connector Unit is configured as an RS 232 Data Circuit Terminating Equipment DCE Printer Standard 25 pin female D type connector This connection exists for a future enhancement It is not functional in this version Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www artisantg com Controls Indicators and Connectors RZ Error Output An RZ word error output is provided This output is a single logic high pulse one half bit wide for each word input that contains an error on any enabled channel The level is ECL a 50 ohm 2 VDC termination is required Note For a cross reference to connector pin numbering refer to the Pino
86. ranslator Pod for MB100 2 15 MB100 User Manual Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www artisantg com TTL to ECL Translator Since the MB100 outputs ECL and inputs ECL the way to connect the MB100 Tx the MB100 Rx the ECL to TTL converter pod and the TTL to ECL converter pod to a TTL circuit is illustrated in the diagram below ECL to TTL TTL to ECL Converter Converter Figure 2 12 Setup of MB100 Tx Rx ECL to TTL converter and TTL to ECL converter 2 16 MB100 User Manual Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www artisantg com Cabling 2 17 Cabling Connection on rear panel of Tx and Rx Parallel Data Output Connector An ECL differential pair is provided on 50 ohm RG178 coaxial cable for each channel output as well as SYNC output clock output and clock 2 output for the Tx The Rx has an ECL differential pair provided on 50 ohm RG178 coaxial cable for each channel output as well as clock output See the diagrams for the Tx pinout and the Rx pinout earlier in this chapter Each output is pulled down at the source by 270 ohms to 5 2 volts The differential termination should be 100 ohms resistive An differential line receiver is recommended for optimum performance The connector housing is an AMP type 20131101 each contact is an AMP 226537 2 receptacle pin The mating connector is an AMP type 201310
87. rd generator at the rate input to this port If the PRESCALED clock is selected the termination is always AC 50 ohms The input clock will be divided by the chosen prescaled value To change the prescaled value move the cursor to the prescaler value line and a set of softkeys will appear to allow a new value to be selected The DIVIDE BY values are 4 8 10 12 16 20 24 or 32 The present value is indicated by a highlight box After the input clock is prescaled it will run the transmitter as the direct clock does In 32 channel units only there is the capability of handling more than 32 channels at one time A menu choice of SLAVE CLK will appear in the Tx CLOCK INPUT selection By daisy chaining Tx units it is possible to generate information on more channels than the 32 channels available from one unit In a representative configuration an external clock source will connect to the first Tx unit and the clock selection can be either DIRECT or PRESCALED A cable out the rear panel of the first Tx unit must be connected to the front panel of the second Tx unit The CLOCK INPUT selection on the second Tx unit must be SLAVE CLK Choosing SLAVE CLK on the second Tx unit leaves nothing else showing on the LCD screen This menu choice does not appear in 16 channel or 24 channel Tx units MB100 User Manual Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www artisantg com TX Menus and Displays Direct Cl
88. ress the CHANGE ENABLES softkey and then do it again to confirm that you really do want to make changes 14 Using the channel select and disable softkeys along with the up and down cursor keys disable all but the first four channels and then escape back to the main menu MB100 User Manual 3 47 Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www artisantg com Applications 3 48 15 16 17 18 19 20 On the MB100 Rx screen select DATA SYNCHRONIZATION and then push the ENTER button Be sure that synchronization has been enabled and to speed up the synchronization time select a SYNC THRESHOLD of 16 4096 These selections set the synchronization so that anytime more than 16 bits out of 4096 are bad the Rx will think that it has lost synchronization and will attempt to re synchronize Push the ESC button to return to the main menu At this point the test set is fully set up Since there is no DUT connected to the pods the MB100 Rx will have its SYNC LOSS and CLOCK LOSS LEDs on On the MB100 Rx select BEEP VOLUME on the display and then take one of the SSMB cables and connect it between the WORD CLOCK OUT on the ECL to TTL Translator and WORD CLOCK INPUT on the TTL to ECL Translator connectors On the MB100 Rx use the side cursor keys to adjust the volume of the internal error beeper tone or to turn it off Since we
89. ror rates are calculated by dividing total errors by total clocks since a test started Each line of the menu will be described below Elapsed Seconds The total number of seconds the present test has run Errored Seconds Any second in which at least one error has occurred in a data word This measurement is particularly useful in determining if errors were bursty or isolated in occurrence Burst errors will have a large error total to errored second ratio Isolated errors will have a matching error total to errored seconds Clock Loss Seconds The number of seconds in which no receiver clock was present SYNC Loss Seconds The number of seconds in which the receiver s internal data pattern was not synchronized to the input pattern MB100 User Manual 3 25 Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www artisantg com RX Menus and Displays NOTE The following four calculations will depend upon the display mode When in aggregate mode the data will be accumulated from the start of the test period When in the last second only mode the data will be for the last second of the test 1 Total Bits The total number of received bits This is calculated by multiplying the number of enabled channels by the total number of word clocks received 2 Total Errors The total number of errors received This is calculated by adding the number of errors detected on all enabled channels 3 Bit Errors C
90. roved three contact electrical output To turn on the Transmitter and or Receiver press the ON OFF switch in the lower left hand corner of the front panel The Transmitter and Receiver are designed to be mounted on a flat surface You may mount the unit at an angle by either adjusting the front feet or rotating the carrying handle To change the handle s orientation l 2 3 4 Press in both handle locking buttons Rotate to desired angle Release the handle locking buttons The handle clicks into a locked position Make sure the handle is locked before placing the transmitter on the work surface MB100 User Manual Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www artisantg com First Time Operation MB100 User Manual Verifying the Proper Operation of the MB100 This procedure will verify that the MB100 Transmitter is operating properly An external clock source the MB100 Receiver the multiconductor interconnect cable SSMB and a slot head screwdriver is required to perform this verification External Clock Source I I I I Extender Cable Figure 1 9 Block Diagram of Setup Equipment List External Clock Source GB700 or GB1400 or other MB100 Tx MB100 Rx Extender cable standard with MB100 Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www artisantg com First Time Operation Cable Connection To interconnec
91. ry Review the following safety precautions to avoid injury and prevent damage to this product or any equipment connected to it Only Tektronix trained personnel should perform maintenance and service procedures on the MB100 Never remove the covers or disassemble the unit without confirmation from a Tektronix factory authorized representative Safety Instructions A WARNING Read and Follow all of these Safety Instructions Failure to do so can cause injury to the user and damage the instrument AC Power The AC power connector on the rear panel of the MB100 accepts 115 VAC input Ground the Instrument The MB100 is grounded through its AC LINE connector Always power the MB100 using a three conductor power cord that is plugged into a grounded three conductor outlet If you operate the MB100 without a proper ground then all metal surfaces of the instrument can become potential shock hazards Use the Proper Fuse Always replace the MB100 AC LINE fuse using the procedure and fuse rating specified A 5 AMP SLOBLO fuse is used for the MB100 Operating the instrument with an improper fuse will create a fire hazard Do Not Operate in an Explosive Atmosphere The MB100 does not provide protection from static discharges or arcing components and therefore must not be operated in an explosive atmosphere Do Not Remove Instrument Covers To avoid a shock hazard and to maintain proper air flow never operate the MB100 with any of its outside cover
92. s removed MB100 User Manual ix Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www artisantg com Safety Terms and Symbols Paragraphs or sections in this document that contain important safety information will be identified by either a WARNING or a CAUTION label in the left hand margin These labels are explained below Icon Label Meaning WARNING Indicates a safety practice that must be followed AN to avoid possible injury to the user and possible damage to the instrument CAUTION Indicates a safety practice that must be followed UN to prevent possible damage to the MB100 or other instruments used with the MB100 Product Labels These terms may appear on the product A yellow label indicates DANGER of an injury hazard immediately accessible as you read the marking A WARNING label indicates an injury hazard not immediately accessible as you read the marking CAUTION indicates a hazard to propriety including the product Product Symbols The following symbols may appear on the product YELLOW LABEL Indicates Indicates DANGER ATTENTION Refer to Manual x MB100 User Manual Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www artisantg com Preface This manual describes how to use the Tektronix MB100 Test Set This manual is intended for telecommunications engineers and technicians with more than two years of experience working with te
93. s reserved Printed in the U S A Tektronix Inc P O Box 1000 Wilsonville OR 97070 1000 TEKTRONIX and TEK are registered trademarks of Tektronix Inc MB100 User Manual Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www artisantg com WARRANTY Tektronix warrants that this product will be free from defects in materials and workmanship for a period of one 1 year from the date of shipment If any such product proves defective during this warranty period Tektronix at its option either will repair the defective product without charge for parts and labor or will provide a replacement in exchange for the defective product In order to obtain service under this warranty Customer must notify Tektronix of the defect before the expiration of the warranty period and make suitable arrangements for the performance of service Customer shall be responsible for packaging and shipping the defective product to the service center designated by Tektronix with shipping charges prepaid Tektronix shall pay for the return of the product to Customer if the shipment is to a location within the country in which Tektronix service center is located Customer shall be responsible for paying all shipping charges duties taxes and any other charges for products returned to any other locations This warranty shall not apply to any defect failure or damage caused by improper use or improper or inadequate maintenance a
94. sed to move vertically in each menu The left and right keys move selected fields in certain submenus ENTER ESC Keys The ENTER key is used to access sub menus The ESC key is used to move up a single level from a sub menu towards the MAIN MENU The ESC key also cancels data entry Softkeys Beneath the multiline LCD display is five softkeys The function provided by each of the keys is displayed for appropriate menus The pressing of a softkey will activate the function associated with it MB100 User Manual Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www artisantg com Controls Indicators and Connectors Rx Output Connectors One connector provides a copy of the system word clock as an ECL output The other connector provides a pattern sync output Word SYNC A single low pulse is output once per pattern cycle When terminated into 50 ohms the output will provide 2 0 0 5 volt referenced to ground Word Clock An ECL compatible clock output is provided from a BNC jack An internal 510 ohm to 5 2 volt pulldown is provided to allow viewing on an oscilloscope In general a 50 ohm to 2 volt external termination should be provided for other uses of this clock Rx Error Analyzer On the Rx front panel on the lower right side is a group of LED lights that indicate the Error Status detected by the Rx test set Also located in this section of the front panel is the RUN STOP button and
95. ssing ENTER If the ENTER key is repetitively pressed after this entry then the last entered data is written into successive memory locations Fill W Zeroes Clears the current pattern memory Fill W Addr A predefined pattern with a length of 256 words Each 8 bit byte of a word contains the address value For example the address 10 contains the data OAOAOAOAH for a 32 channel system Fill W PR 7 and PR 15 The PR 7 and PR 15 softkeys fill the pattern memory with a pseudorandom sequence of length 127 and 32767 respectively All channels will contain the same sequence with the seed being 7 or 15 consecutive ones When the PRBS Phase Delay is 0 bits all of the channels will have identical data phase aligned When the PRBS Phase Delay is 4 bits each channel will still have the same sequence but will be phase shifted from the adjacent channel by 4 bits Fill W ROM The fill with ROM key transfers the optional ROM into battery backed RAM for editing 3 34 MB100 User Manual Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www artisantg com Rx Menus and Displays gt PER CHANNEL ENABLE The Per Channel Enable available from the Rx Main Menu controls which channels are analyzed A disabled channel contributes nothing to the data synchronization section of the receiver nor are any statistics gathered The Per Channel Enable submenu is chosen by pressing the ENTER key next to this line of th
96. ssories are included with the MB100 BER Tester If you wish to purchase optional accessories or additional standard accessories see the Tektronix products catalog or contact your local Tektronix field representative Standard Accessories Power cable Tektronix part number MB100 Multi Channel BER Tester User Manual Tektronix part number 070 9783 01 MB100 Multi Channel BER Tester Programmer Manual Tektronix part number 070 9476 01 Instrument Front Cover Tektronix part number Extender Loopback cable five different configurations for self test see table below Optional Accessories Rackmount Tektronix part number 016 1464 00 Device cable five different configurations see table below SSMB cables terminated SSMB male and SMA male Ten of these cables with ten barrels SMA SMA Female are standard with the MB100TT and MB100 RT There are five configurations to choose from depending on application and system needs l m og qo dg MB100 User Manual as a Pair Transmitter and Receiver as a Transmitter only as a Receiver only ECL to TTL translator only or TTL to ECL translator only 1 9 Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www artisantg com Product Description Ordering information including cables Transmitter Extender cable not included Opt 11 16 channel MB100 ECL to TTL translator Opt 20 24 channel single ended Opt 21 24 channel di
97. t box with the cursor keys CHANNEL MONITOR SELECTION Select Channel with Arrow Keys 10 1 2 3 4 5 6 7 8 MB100 User Manual 3 19 Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www artisantg com TX Menus and Displays 3 20 REMOTE SETUP The Remote Setup available from the Tx Main Menu controls the setting of the remote ports GPIB and RS232 A set of softkeys is initially displayed for selection of which of the two to edit REMOTE SETUP SELECT REMOTE INTERFACE RS232 or GPIB RS232 GPIB If GPIB is selected the following menu appears SETUP SETUP REMOTE SETUP GPIB ADDRESS 15 31 OFFBUS TERMINATION EOI LF or EOI The softkeys allow editing of values depending where the cursor is placed If next to the address field the softkey SET NEW ADDRESS appears Press it to display a pop up edit window for altering the GPIB address Numbers from to 30 are acceptable with an entry of 31 placing the MB100 Transmitter offbus Refer to Chapter 4 External Controllers for more information on GPIB If next to TERMINATION then softkeys are displayed which allow the selection of the end of line terminator for GPIB commands MB100 User Manual Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www artisantg com TX Menus and Displays If the RS232 submenu is chosen the following is displayed REMO
98. t the systems attach the multiconductor cable to the rear panel of the Transmitter as follows Locate the top side of the multipin cable The top side of the cable connector is closest to the number 1 pin as labeled on the connector face See illustration below To the left is the pinout of the multiconductor cable To the right is the rear panel of the MB100 CHAN 1 TRUE CHAN 1 COMPLEMENT Model No Serial No Options CLOCK TRUE CLOCK COMPLEMENT SYNC COMPLEMENT P 5 CLOCK 2 TRUE Differential Data and Clock Outputs Figure 1 10 Multiconductor pinout left Multiconductor connection on Rear Panel right 1 Place this side facing the top of the Transmitter onto the mating connector on the rear panel of the MB100 Transmitter The four jackscrews should be lined up and just touching the mating jackscrew receptacle 2 Using the slot head screwdriver carefully turn each jackscrew approximately 1 2 to 1 revolution repeating in rotation until all our jackscrews are fully seated Do not over tighten the jackscrews as this may loosen the internal connection that mounts the connector to the rear panel It is normal for a slight space to remain between the connector faces after the jackscrews seat 3 Repeat the previous steps 2 through 3 to connect the other end of the cable to the MB100 receiver 4 Turn on the systems Each will power up with a screen indicating the present system software version along with the company
99. udo Random Bit Sequence of 2 1 32 767 bit long sequence In the first test the same input signal was applied to all four of the differential channels under test For the other tests the PRBS was offset by 4 bits thus providing a random sequence between channels The coding scheme used was NRZ Upon system test configuration the test was allowed to run uninterrupted for a set amount of time At completion of the time block the results were recorded which included elapsed seconds total bits transmitted and the number of bit errors recorded For the three tests documented below a power supply voltage of 5 0V was used and the tests were conducted at room temperature Example of Tests and Results The goal of the tests was to demonstrate error rates of less that 1 x 10 are obtainable Test 1 Conditions Data Rate 50 Mbps Cable Length 1 meter PRBS Code 2 1 NRZ For this test the PRBS code applied to the four driver inputs was identical This created an SOS Simultaneous Output Switching condition on the device Test 1 Results Total Seconds 87 085 1 day Total Bits 1 723 x 10 Errors 0 Error Rate 1 x 10 MB100 User Manual Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www artisantg com Applications Test 2 Conditions Data Rate 110 Mbps Cable Length 1 meter PRBS Code 2 1 NRZ For this test the PRBS code applied to the four driver inputs was offset
100. uipment contact your local sales and service office This unit should be calibrated yearly For a complete list of Worldwide Sales and Service Offices contact 800 426 2200 or see the table below for other methods of contacting Tektronix sales and service Tektronix provides high quality Technical Support on applications operation measurement specifications hardware and software by expert application engineers For Applications Support call the Customer Support Center listed below Tektronix Inc Attn Customer Service Measurement Business Division P O Box 500 Beaverton Oregon 97077 0001 USA 800 TEK WIDE Hours are 6 00 AM to 5 00 PM or Pacific Time 800 835 9433 Ext 2400 After hours Voice Mail is available 503 627 2400 503 627 5695 tm_app_supp tek com http www tek com MB100 User Manual Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www artisantg com U S A Africa Asia Australia Central amp South America Japan Tektronix Inc P O Box 500 Beaverton Oregon 97077 0001 For additional literature or the address and phone number of the Tektronix Sales Office or Representative nearest you contact 800 426 2200 Belgium Brussels Phone 32 2 725 96 10 Fax 32 2 725 99 53 Canada Calgary Phone 403 274 2691 Fax 403 274 3483 Denmark Copenhagen Phone 45 44 850 700 Fax 45 44 850 701 Eastern Europe Middle East and Austria Tektronix Ges m b H
101. ut Description on page 2 6 CHAN 1 TRUE CHAN 1 COMPLEMENT Notes All pins are coaxial Connector does not use numbers 6 9 19 61 68 69 81 Configurations 16 24 or 32 channel single ended 16 or 24 channel differential Clock Clock 2 and SYNC Complement only in differential configurations CLOCK TRUE CLOCK COMPLEMENT Figure 2 6 Rx Rear Panel Differential Output Connector Pinout 2 12 MB100 User Manual Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www artisantg com Controls Indicators and Connectors Changing the Line Fuse 1 Disconnect the AC line cord EP E B Model No Serial No Options 115 VAC Jaa AC Power Input Figure 2 7 Rear Panel of MB100 showing AC Power Input 2 Slide the fuse cover upwards and remove the fuse 3 Install the correct line fuse 5 AMP SLOBLO into the holder 4 Close the fuse cover 5 Plug in the line cord Allow at least two inches of clearance for the rear panel fan opening and at least one inch of clearance for the top mounted ventilation slots This assures proper cooling of the unit Do not operate the transmitter on its rear side MB100 User Manual 2 13 Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www artisantg com ECL to TTL Translator ECL to TTL Translator The MB100 outputs ECL Emitter Coupled Logic and inputs ECL In order to output to a TTL
102. weep the group of 4 channels that are enabled will be highlighted Any of the 4 channels within the group which where disabled prior to the start of the sweep will not be highlighted and will be denoted by DIS appearing next to the channel number Start Sweep Softkey Starts the SYNC SWEEP function This process will continue until either SYNC is achieved or the Sweep is aborted Abort Sweep Softkey Aborts the SYNC SWEEP process 3 28 MB100 User Manual Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www artisantg com Rx Menus and Displays gt PATTERN EDIT DISPLAY The Pattern Edit Display submenu available from the Rx Main Menu controls the selection display and editing of the internal pattern memory The submenu appears as follows PATTERN ACTIVE PATTERN One of 3 choices below DISPLAY ACTIVE PATTERN EDIT ACTIVE PATTERN ACTIVE PATTERN ROM ACTIVE PATTERN NVRAMO ACTIVE PATTERN NVRAM1 PRBS PHASE DELAY 0 BITS PRBS PHASE DELAY 4 BITS The Pattern Active Pattern indicates which of the three types of PATTERN memory sources ROM NVRAMO or NVRAM1 the system is currently using The MB100 contains two battery backed memory and a single optional ROM pattern for application specific patterns The two battery backed RAM locations are labeled NVRAMO and NVRAMI The MB100 uses the NVRAM as an edit space separate from the high speed pattern output memory Each time an edit

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