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TTC 41400, Руководство по эксплуатации

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TELECOMMUNICATIONS TECHNIQUES CORPORATION

25

Figure 4-1

Local and Remote Loopback Testing

4.1 INTRODUCTION

This section shows how the RS-449/530/MIL Interface

can be used with the FIREBERD 4000 in a variety of test
scenarios.  Test and instrument set-ups are provided for:

(1)

Testing the Near-End Modem (Local Loopback)
or the Far-End Modem (Remote Loopback)

(2)

Testing a Far-End 64 kb/s Sub-Rate Channel (Re-
mote Loopback)

(3)

Testing Near- and Far-End 256 kb/s Equipment
Simultaneously

(4)

Testing a 1200 b/s Asynchronous Modem (Local
Loopback)

NOTE:

The combination of test applications is purely arbi-
trary.  The procedures in this section are written so
that a variety of applications could be described.  Any
combination is possible, depending on the available
facilities.

The procedures in this section assume that you possess a

working knowledge of the RS-449/530/MIL Interface and the
FIREBERD.  If you are unfamiliar with the instruments,
please refer to Section 3, Installation and Operation.

4.2 SYNCHRONOUS TESTING

4.2.1 Testing the Near-End Modem (Local

Loopback) or the Far-End Modem (Remote
Loopback)

Figure 4-1 shows a FIREBERD 4000 with the RS-449/

530/MIL Interface.  The instrument is connected to a near-end
9600 b/s modem (MODEM #1) and a far-end 9600 b/s modem
(MODEM #2).  By looping either modem output back to its
own input the FIREBERD can transmit test data to either the
local modem or the remote modem and analyze the looped-
back data for errors.

4.2.2 Testing the Far-End Subrate Channel

Figure 4-2 shows a FIREBERD 4000 equipped with the

RS-449/530/MIL Interface testing a far-end sub-rate channel
by creating a remote loopback.  The instrument is connected
to a 64 kb/s sub-rate channel of a multiplexer on the near side.
The far-end multiplexer has its 64 kb/s sub-rate channels
output connected to its own input to form a loop.  The
FIREBERD generates data and analyzes the received data for
errors.

SECTION 4

FIREBERD 4000

APPLICATIONS

Multiplexer

Modem 1

Modem 2

Near End

9600 b/s

9600

b/s

9600

b/s

RS449/530/MIL

FIREBERD

#1

9500395-00

Содержание 41400

Страница 1: ...JUNE 1999 This manual applies to all serial numbers unless specified otherwise Copyright 1999 TTC 20400 Observation Drive Germantown Maryland 20876 4023 USA USA 1 800 638 2049 1 301 353 1550 MD FAX 1 301 353 0234 Canada 1 888 689 2165 1905 507 4117 FAX 1 905 507 4126 www ttc com ...

Страница 2: ......

Страница 3: ...SWITCHES 21 3 7 FIREBERD 4000 PRINTER OPERATION 21 3 8 FIREBERD 4000 REMOTE CONTROL COMMANDS 23 4 0 FIREBERD 4000 APPLICATIONS 25 4 1 INTRODUCTION 25 4 2 SYNCHRONOUS TESTING 25 4 3 ASYNCHRONOUS TESTING 30 5 0 FIREBERD 6000 INSTALLATION AND OPERATION 33 5 1 INTRODUCTION 33 5 2 INSTALLING THE INTERFACE 33 5 3 FIREBERD 6000 MAINFRAME SET UP 34 5 4 FIREBERD 6000 INTERFACE SET UP 34 5 5 FIREBERD 6000 A...

Страница 4: ...22 3 9 LONG RESULTS PRINTOUT 22 4 1 LOCAL AND REMOTE LOOPBACK TESTING 25 4 2 TESTING A FAR END SUBRATE CHANNEL 26 4 3 TESTING NEAR AND FAR END SUBRATE EQUIPMENT SIMULTANEOUSLY 28 4 4 TESTING AN ASYNCHRONOUS MODEM 30 5 1 INSTALLING A MODULAR INTERFACE 33 5 2 FIREBERD 6000 RS 449 530 MIL DATA INTERFACE SET UP MENU TYPE 188114 35 5 3 FIREBERD 6000 RS 449 530 MIL DATA INTERFACE SET UP MENU TYPE EIA530...

Страница 5: ... FIREBERD 6000 ANALYSIS RESULTS 40 5 2 RS 449 530 MIL DATA INTERFACE FIREBERD 6000 REMOTE CONTROL COMMANDS 42 6 1 FIREBERD 6000 SYNCHRONOUS TEST SET UP WITH EIA 530 44 6 2 FIREBERD 6000 SYNCHRONOUS TEST SET UP WITH RS 449 46 6 3 FIREBERD 6000 SYNCHRONOUS TEST RESULTS 48 6 4 FIREBERD 6000 ASYNCHRONOUS TEST SET UP WITH 188C 49 6 5 FIREBERD 6000 ASYNCHRONOUS TEST RESULTS 50 7 1 RS 449 530 MIL DATA IN...

Страница 6: ...vi TELECOMMUNICATIONS TECHNIQUES CORPORATION ...

Страница 7: ...s eye protection Neveroperatetheequipmentwhencombustiblegases or fluids are present 1 3 ENVIRONMENTAL CONSIDERATIONS The RS 449 530 MIL Data Interface Model 41400 should be operated in a non combustible atmosphere There should be no flammable materials in the area This RS 449 530 MIL Data Interface Model 41400 and associated equip ment is sensitive to corrosive materials including exposure to salt...

Страница 8: ...dation V 10 or X 26 Electrical Characteristics of Unbalanced Double Current Inter change Circuits CCITT Recommendation V 11 or X 27 Electrical Characteristics or Balanced Double Current Inter change Circuits EIA RS 422 A December 1978 Electrical Charac teristics of Unbalanced Voltage Digital Interface Circuits EIA RS 423 A December 1978 Electrical Charac teristics of Unbalanced Voltage Digital Int...

Страница 9: ...88C provide ac cess to any RS 449 MIL 188 114 EIA 530 or MIL 188C compatible circuit The corner pins of each connector are labeled with the appropriate pin number See Table 2 1 for descriptions on the pin outs for each connector In addition to the two D type connectors the interface has five twinax connectors labeled RCV DATA RCV CLK TX DATA TX CLK OUT and EXT TX CLK IN which allow the FIREBERD to...

Страница 10: ...put Input 4 191 CA 105 Request to Send 7 251 RS Request to Send Input Output 5 132 CB 106 Clear to Send 9 272 CS Clear to Send Output Input 6 222 CC 107 DCE Ready 11 292 DM Data Mode Output Input 20 232 CD 108 2 DTE Ready 12 302 TR Terminal Ready Output Input 8 102 CF 109 Received Line 13 312 RR Receiver Ready Output Input Signal Detector 24 111 DA 113 Transmit Signal 17 351 TT Terminal Timing Inp...

Страница 11: ...g Assembly and Installation Instructions ThepackagecontainingtheRS 449 530 MILDataInter face Model 41400 should be carefully checked for exterior damage If no damage is apparent the package should be opened carefully so that the RS 449 530 MIL Data Interface Model 41400 is not damaged with a cutting blade or other sharp object The RS 449 530 MIL Data Interface Model 41400 should be checked against...

Страница 12: ... 530 specifications TYPE EIA530 enables a FIREBERD to act as data terminal equipment DTE or data communications equipment DCE Connections are made using a 25 pin D type connector Op eration is possible in balanced or unbalanced mode Balanced mode indicates that each signal is transmitted on two leads in which the voltage is equal in magnitude and opposite in polarity with respect to a common refer...

Страница 13: ...lock on Pin 24 Transmit Clock DTEsource Pin17TerminalTimingDTEsource TheDCE transmit clock on Pin 15 Transmit Clock DCE source Pin 5 Send Timing DCE source is ignored when the internal mainframe clock is used With the generator clock set to INTF the clock on Pin 15 Pin 5 is used as the transmit timing source for transmitting the test pattern on Pin 2 Pin 4 It also supplies the external transmitclo...

Страница 14: ...g User Option is installed these patterns may be selected During DTE emulation the Interface Status and Control panel switches control RTS Request To Send and DTR Data Terminal Ready by turning the leads off and on The status of RLSD Received Line Signal Detector DSR Data Set Ready TM Test Mode and CTS Clear To Send is monitored and displayed on the front panel 2 4 2 Operating as Synchronous DCE T...

Страница 15: ...de In DTE emulation the self loop mode loops the TD lead Pin 2 Pin 4 to the RD lead Pin 3 Pin 6 and the XTC lead Pin 24 Pin 17 to the RC lead Pin 17 Pin 8 Timing can be provided by the DCE on Pin 15 Pin 5 generator clock set to INTF the internal generator clock generator clock set to INTRNL ortherearpanelGENCLKINconnection genera tor clock set to BNC In DCE emulation the self loop mode loops the R...

Страница 16: ...10 TELECOMMUNICATIONS TECHNIQUES CORPORATION ...

Страница 17: ...provided as a self contained unit If repairs are necessary the entire interface should be replaced Section 8 of this manual contains information about the warranty and return policies 3 2 INSTALLING THE INTERFACE The following procedure describes how to install the RS 449 530 MIL Interface in the FIREBERD 4000 Figure 3 1 illustrates how the interface is installed CAUTION Before installing or remov...

Страница 18: ...LDataInterfaceiscontrolledthrough the FIREBERD 4000 INTERFACE SETUP category Press the MIL449 softkey to access the MIL449 interface menu Use the SETUP SELECT switch to step through the menus Press the softkeys to select a function as indicated by the softkey labels on the bottom line of the display To return to the interface select menu press the mainframe HOME key All interface menu settings are...

Страница 19: ... MIL449 INT188 TYPE XXXXXX 188114 RS449 EIA530 MORE TYPE RS449 188114 RS449 EIA530 188C CONNECTOR XXXXX D TYPE TWINAX CONNECTOR D TYPE D TYPE TWINAX EMULATE XXXXXX DTE DCE MODE XXXXXX BAL UNBAL MODE UNBAL BAL UNBAL MODE BAL BAL UNBAL IMPEDANCE XXXXXX 78 100 124 UNTERM MORE TIMING XXXXXX ASYNC SYNC TIMING SYNC ASYNC SYNC RCV CLOCK XXXXXX TT ST TIMING ASYNC ASYNC SYNC DATA BITS XXXXXX 5 6 7 8 PARITY...

Страница 20: ...erface Setup Menu Type EIA530 9500390 00 EMULATE DCE INTERFACE XXXXXX INT232 MIL449 INT188 INTERFACE MIL449 INT232 MIL449 INT188 TYPE XXXXXX 188114 RS449 EIA530 188C MORE TYPE RS449 188114 RS449 EIA530 188C CONNECTOR XXXXXX D TYPE TWINAX CONNECTOR TWINAX D TYPE TWINAX MODE XXXXXX BAL UNBAL MODE UNBAL BAL UNBAL MODE BAL BAL UNBAL IMPEDANCE XXXXXX 78 100 124 UNTERM MORE TIMING XXXXXX ASYNC SYNC TIMI...

Страница 21: ...8C MORE TYPE 188114 188114 RS449 EIA530 188C CONNECTOR XXXXXX D TYPE TWINAX CONNECTOR D TYPE D TYPE TWINAX MODE UNBAL BAL UNBAL MODE BAL BAL UNBAL IMPEDANCE XXXXXX 78 100 124 UNTERM MORE TIMING XXXXXX ASYNC SYNC TIMING SYNC ASYNC SYNC RCV CLOCK XXXXXX TT ST TIMING ASYNC ASYNC SYNC DATA BITS XXXXXX 5 6 7 8 PARITY XXXXXX EVEN ODD NONE STOP BITS XXXXXX 1 1 5 2 EMULATE XXXXXX DTE DCE MODE XXXXXX BAL U...

Страница 22: ...9 INT188 TYPE XXXXXX 188114 RS449 EIA530 188C MORE TYPE 188114 188114 RS449 EIA530 188C CONNECTOR XXXXX D TYPE TWINAX CONNECTOR TWINAX D TYPE TWINAX MODE XXXXXX BAL UNBAL MODE UNBAL BAL UNBAL MODE BAL BAL UNBAL IMPEDANCE XXXXXX 78 100 124 UNTERM MORE TIMING XXXXXX ASYNC SYNC TIMING SYNC ASYNC SYNC RCV CLOCK XXXXXX TT ST TIMING ASYNC ASYNC SYNC DATA BITS XXXXXX 5 6 7 8 PARITY XXXXXX EVEN ODD NONE S...

Страница 23: ...9 INT188 INTERFACE MIL449 INT232 MIL449 INT188 TYPE XXXXXX 188114 RS449 EIA530 188C MORE TYPE 188C 188114 RS449 EIA530 188C EMULATE XXXXXXX DTE DCE TM XXX CTS XXX TM CTS SIGNALING ON XXX POS NEG TIMING ASYNC ASYNC SYNC DATA BITS XXXXXX 5 6 7 8 PARITY XXXXXX EVEN ODD NONE STOP BITS XXXXXX 1 1 5 2 TIMING XXXXXX ASYNC SYNC TIMING SYNC ASYNC SYNC RCV CLOCK XXXXXX TT ST LL XXX RL XXX LL RL ...

Страница 24: ...XXXXX 188114 RS449 EIA530 188C MORE TYPE EIA 530 188114 RS449 EIA530 188C EMULATE XXXXXXX DTE DCE MODE XXXXXX BAL UNBAL TM XXX CTS XXX TM CTS TIMING SYNC ASYNC SYNC RCV CLOCK XXXXXX TT ST DATA BITS XXXXXX 5 6 7 8 PARITY XXXXXX EVEN ODD NONE TIMING XXXXXX ASYNC SYNC MODE UNBAL BAL UNBAL LL XXX RL XXX LL RL IMPEDANCE XXXXXX 78 100 124 UNTERM SIGNALING ON XXX POS NEG MODE UNBAL BAL UNBAL MORE TIMING ...

Страница 25: ...MORE key to select the 8 bit format default 8 Modifying DATA BITS will cause a test restart PARITY EVEN ODD NONE This menu determines the orientation of the parity bit Parity is a form of error detectionusedinasynchronousdata Presstheassociated softkey to select the appropriate parity EVEN ODD or NONE Selecting EVEN enables the parity bit when the number of ones in the data byte is an even number ...

Страница 26: ...d in the FIRE BERD 4000 Refer to the FIREBERD 4000 Reference Manual for results definitions Table 3 1 FIREBERD 4000 Analysis Results Category Displayed Result Description ERROR AVG BER Average Bit Error Rate AVG BLER Average Block Error Rate BER Bit Error Rate BIT ERRS Bit Errors BLK ERRS Block Errors BLOCKS Blocks CHAR ERR1 Character Errors PAT LOSS Pattern Synchronization Loss PAT SLIP2 Pattern ...

Страница 27: ...s the DSR line ON Pressing this pushbutton again extinguishes the LED and the DSR line is held OFF RTS In DTE emulation pressing the Request To Send pushbutton illuminates the LED and forces this line ON Pressing this pushbutton again extinguishes the LED and holds the line OFF DTR InDTEemulation pressingthispushbuttonillumi nates the LED and forces the Data Terminal Ready line ON Indicators RLSD ...

Страница 28: ...RROR INSERT OFF SELF LOOP OFF GEN CLOCK SYNTH SYN FRQ 1544 0 kHz DISPLAY HOLD OFF SETUP PROGRAM NO 0 AUXILIARY SETUP FLOW TR DTR OFF FLOW DM DSR OFF FLOW RS RTS OFF FLOW CS CTS OFF FLOW RRS RLSD OFF SYN LOS ACT HALT SYN LOS THR NORMAL USER SYN THR 10 BLOCK LENGTH PATT PRINT FMT STANDARD STATUS PRINTS OFF PRINT EVENT AUX ER BIT ERROR OFF BLOCK ERROR OFF BPV ERROR OFF CODE ERROR OFF FRAME ERROR OFF ...

Страница 29: ...the termination impedance xxx 78 100 124 or UNTERM INT SET MIL449 TIM Prints the current timing INT SET MIL449 TIM xxx Selects the timing xxx ASY or SYN INT SET MIL449 RCV xx Selects the receive clock source xx TT or ST INT SET MIL449 DAT Prints the current data bits setting INT SET MIL449 DAT x Selects the data bits x 5 6 7 or 8 INT SET MIL449 PAR Prints the current parity setting INT SET MIL449 ...

Страница 30: ...24 TELECOMMUNICATIONS TECHNIQUES CORPORATION ...

Страница 31: ...truments please refer to Section 3 Installation and Operation 4 2 SYNCHRONOUS TESTING 4 2 1 Testing the Near End Modem Local Loopback or the Far End Modem Remote Loopback Figure 4 1 shows a FIREBERD 4000 with the RS 449 530 MIL Interface The instrument is connected to a near end 9600b smodem MODEM 1 andafar end9600b smodem MODEM 2 By looping either modem output back to its own input the FIREBERD c...

Страница 32: ...modems and multiplexers using the EIA 530 con nector you can use them to set up any basic synchronous test using the RS 449 530 MIL Interface Table 4 1 FIREBERD 4000 Synchronous Test Set Up With EIA 530 Step Activity 1 With the power to the FIREBERD 4000 turned off insert the RS 449 530 MIL Data Interface in the designated rear panel slot 2 Press the POWER switch to apply power to the FIREBERD 400...

Страница 33: ... select a test data pattern NOTE If transmitting test data to either the local modem or the remote modem as shown in Figure 4 1 select either the 511 or the 2047 data pattern NOTE If testing a 64 kb s subrate channel as shown in Figure 4 2 it is recommended to select 2047 or 215 1 data pattern 9 If hard copy test results are desired set the PRINTER switch to print on a time interval 15 MIN or 1 HR...

Страница 34: ...ector you can use them to set up any basic synchronous test using the RS 449 530 MIL Interface Multiplexer Near End 9500397 00 Multiplexer Far End CSU CSU Multichannel Network 256 kb s RS449 530 MIL FIREBERD 1 FIREBERD 2 RS449 530 MIL Table 4 2 FIREBERD 4000 Synchronous Test Set Up With RS 449 Step Activity 1 With the power to the FIREBERD 4000 turned off insert the RS 449 530 MIL Data Interface i...

Страница 35: ...f testinga256kb ssubratechannelasshowninFigure4 3 selecteitherthe511orthe2047datapattern 9 If hard copy test results are desired set the PRINTER switch to print on a time interval 15 MIN or 1 HR or on the occurrence of any error condition ERROR NOTE Both error and time print events can be customized using the AUX PRINT EVENT auxiliary function See Section 3 of the FIREBERD 4000 Reference Manual fo...

Страница 36: ...cted to a 1200 b s modem which has its output looped back to its own input The FIREBERD 4000 both transmits the test data and analyzes the received data for errors Table 4 3 FIREBERD 4000 Synchronous Test Results Category Results ERROR BER BLOCKS BLK ERRS AVG BLER CLK SLIP BIT ERRS AVG BER PAT LOSS PAT SLIP2 PERFORMANCE1 GERR SEC GEFS G EFS DEG MIN DEG MIN SES SES UNA SEC AVL SEC AVL SEC TIME SIGN...

Страница 37: ...g on the test 9 ON to select Signaling positive 5 Set the SETUP CATEGORY switch to the GENERATOR CLOCK category 6 Set the GENERATOR CLOCK to INTRNL position 7 Using the SETUP SELECT switch and the appropriate softkey set the INTERNAL FREQ to 1 2 k 8 Set the SETUP CATEGORY switch to the PATTERN category 9 Using the MORE key and the appropriate softkey select the FOX data pattern 10 If hard copy tes...

Страница 38: ...er or can be viewed at the ANALYSIS display windows Table 4 5 FIREBER 4000 Asynchronous Test Results Category Results ERROR BIT ERRS AVG BER BER BLOCKS BLK ERRS AVG BLER CHAR ERR PAT LOSS PERFORMANCE1 UNA SEC AVL SEC DEG MIN AVL SEC SES SES DEG MIN SYNL SEC SYN SEC G EFS GERR SEC G EFS TIME SIGNAL ERR EAS E A SEC E F EAS ELAP SEC TIME DATE PATL SEC ERR SEC EFS DELAY2 GEN FREQ TEST SEC ELAP SEC 1 R...

Страница 39: ...nce of the RS 449 530 MIL Data Interface Model 41400 is verified by installing the interface in the FIREBERD 6000 as described in the previous para graphs The FIREBERD 6000 should be set up as described in the step by step procedures in the following paragraphs The equipment should be powered up and the various menus and set ups performed to ensure proper operation If any test fails be sure to che...

Страница 40: ...ist to identify auxiliary functions that might affect the operation of the RS 449 530 MIL Interface 6 Select the desired ANALYSIS MODE CONTINU OUS or SINGLE 7 Select the applicable categories and results displays from the ANALYSIS RESULTS panel 5 4 FIREBERD 6000 INTERFACE SET UP This section describes how to access the interface menu and discusses each of the menu selections in the RS 449 530 MIL ...

Страница 41: ...A530 TYPE 188114 CON MODE MORE CONNECTOR TWINAX TWINAX D TYPE MODE BAL BAL UNBAL IMPEDANCE 78 100 124 MORE UNTERM SIG POS LL OFF RL OFF SIG LL RL SIG POS TM OFF CTS OFF SIG TM CTS ON OFF ON OFF POS NEG ON OFF ON OFF POS NEG 9500400 00 Figure 5 2 FIREBERD 6000 RS 449 530 MIL Interface Set Up Menu Type 188114 ...

Страница 42: ...TE MODE MORE 9500401 00 188C EMULATE DTE DTE DCE TT DCE ST MODE BAL BAL UNBAL SIG POS LL OFF RL OFF SIG LL RL SIG POS LL OFF RL OFF SIG LL RL SIG POS TM OFF CTS OFF SIG TM CTS POS NEG ON OFF ON OFF POS NEG ON OFF ON OFF IMPEDANCE 78 100 124 MORE Figure 5 3 FIREBERD 6000 RS 449 530 MIL Interface Set Up Menu ...

Страница 43: ...et Up Menu UNTERM INTERFACE MIL449 188114 RS449 EIA530 TYPE RS449 CON MODE MORE 9500402 00 188C CONNECTOR TWINAX TWINAX D TYPE MODE BAL BAL UNBAL SIG POS LL OFF RL OFF SIG LL RL EMULATE DTE DTE DCE TT DCE ST SIG POS TM OFF CTS OFF SIG TM CTS POS NEG ON OFF ON OFF POS NEG ON OFF ON OFF IMPEDANCE 78 100 124 MORE ...

Страница 44: ... 5 5 FIREBERD 6000 RS 449 530 MIL Interface Set Up Menu Type 188C INTERFACE MIL449 188114 RS449 EIA530 MORE 188C SIG POS LL OFF RL OFF SIG LL RL EMULATE DTE DTE DCE TT DCE ST SIG POS TM OFF CTS OFF SIG TM CTS POS NEG ON OFF ON OFF POS NEG ON OFF ON OFF 9500403 00 ...

Страница 45: ...rovidedtosetthe termination impedance The termination impedance should be set to match the characteristics of the cable IMPEDANCE This menu allows you to select either a terminationimpedanceof78ohms 100ohms 124ohms or UNTERM 7 4 k ohms UNBAL ThisselectionallowstheFIREBERDtooperate in an unbalanced mode In unbalanced mode each signal is transmitted on one lead with respect to a common ground 5 4 5 ...

Страница 46: ...ncy ALARM C D CHA Receiver Clock Data Phase Changes CLK LOSS Receiver Clock Losses DAT LOSS Receiver Data Losses PAT LOSS Pattern Synchronization Loss PWR LOSS Power Losses PERFORMANCE AVL SEC Available Seconds AVL SEC Available Seconds DEG MIN Degraded Minutes PAT SEC Pattern Seconds SES Severely Errored Seconds BER SES BIT Error Rate Minus Severely Errored Seconds DEG MIN Degraded Minutes ERR SE...

Страница 47: ...pressingthispushbuttonillumi nates the LED and forces the Data Terminal Ready line ON Indicators RLSD In DTE emulation the Received Line Signal Detector illuminates when this line is ON DSR In DTE emulation the Data Set Ready LED illuminates when this line is ON CTS In DTE emulation the Clear To Send LED illumi nates when this line is ON In DCE emulation there is no corresponding LED RTS In DCE em...

Страница 48: ...49 EMULATE LL Prints the current Local Loop status INTF MIL449 EMULATE LL ON OFF Selects the Local Loop ON or OFF INTF MIL449 EMULATE RL Prints the current Remote Loop status INTF MIL449 EMULATE RL ON OFF Selects the Remote Loop ON or OFF INTF MIL449 EMULATE TM Prints the current Test Mode status INTF MIL449 EMULATE TM ON OFF Selects the Test Mode ON or OFF INTF MIL449 EMULATE CTS Prints the curre...

Страница 49: ...nstruments please refer to Section 5 Installation and Operation 6 2 SYNCHRONOUS TESTING 6 2 1 Testing the Near End Modem Local Loop back or the Far End Modem Remote Loop back Figure 6 1 shows a FIREBERD 6000 with the RS 449 530 MILInterface Theinstrumentisconnectedtoanear end 9600b smodem MODEM 1 andafar end9600b smodem MODEM 2 By looping either modem output back to its own input the FIREBERD can ...

Страница 50: ... transmitting test data to either the local modem or the remote modem If testing a 64 kb s subrate channel as shown in Figure 6 2 it is recommended to select 2047 or 215 1 as the data pattern testing of modems and multiplexers using the EIA 530 con nector you can use them to set up any basic synchronous test using the RS 449 530 MIL Interface 6 2 3 Basic Synchronous Test Set Up Table 6 1 describes...

Страница 51: ...RINT EVENT then enable the printer control block located to the left of the POWER switch by setting the OFF ON switch to the ON position 8 Connect the FIREBERD 6000 to the equipment under test using the appropriate cables 9 Illuminate the RTS and DTR switches located just above the POWER switch to set both signaling leads to HIGH 10 Check that the SYNC LED located at the upper right hand corner of...

Страница 52: ...slot 2 Press the POWER switch to apply power to the FIREBERD 6000 RESULT The SETUP display shows the units current configuration NOTE If the FIREBERD 6000 is in Self Loop mode after power up disengage the SELF LOOP switch 3 Set the DATA switch to either the 511 or the 2047 data pattern if transmitting test data to either the local modem or the remote modem If testing a 256 kb s subrate channel as ...

Страница 53: ...t above the POWER switch to set both signaling leads to HIGH 12 If performing a looopback test establish a loop by performing the procedures which are appropriate for your DCE 10 Check that the SYNC LED located at the upper right hand corner of the FIREBERD 6000 is illuminated RESULT The FIREBERD has achieved pattern synchronization and is gathering test results Figure 6 4 Testing an Asynchronous ...

Страница 54: ...egory Results ERROR AVG BER AVG BLER BER BIT ERRS BLOCKS BLK ERRS PAT SLIP PERFORMANCE G ERR SEC G EFS G EFS DEG MIN DEG MIN SES SES UNA SEC AVL SEC AVL SEC BER SES ERR SES TIME ERR EAS EA SEC EF SEC ELAP SEC TIME DATE SIGNAL DELAY RCV FREQ GEN FREQ ALARM PAT LOSS DAT LOSS CLK LOSS C D CHA PWR LOSS ...

Страница 55: ...n Select the desired asynchronous character format DATA bits PARITY and STOP bits 9 If a timed test is desired 1 Set the MENU switch to TEST INTERVAL 2 Press the MORE key twice then press the TIMED softkey 3 set the desired test length using the MENU keypad then press the ENTER key 4 Set the ANALYSIS MODE switch located to the right of the RESULTS area to SINGLE 10 If a continuous test is desired ...

Страница 56: ...n be viewed in the RESULTS ANALYSIS display windows Table 6 5 FIREBERD 6000 Asynchronous Test Results Category Results ERROR BIT ERRS AVG BER BER BLOCKS BLK ERRS AVG BLER CHAR ERR TIME DATE ERR EAS E A SEC E F EAS ELAP SEC TIME PATL SEC PAT SEC Category Results SIGNAL DELAY GEN FREQ ALARM DAT LOSS PWR LOSS PAT LOSS PERFORMANCE GERR SEC G EFS G EFS DEG MIN DEG MIN SES SES UNA SEC AVL SEC AVL SEC PA...

Страница 57: ... kb s recovered Normal Data Polarity MIL 188C MARK binary 1 A lead positive with respect to signal ground SPACE binary 0 A lead negative with respect to signal ground RS 423 MIL 188 114 UNBAL MARK binary 1 A leadnegativewithrespecttosignal ground EIA 530 UNBAL SPACE binary 0 A leadpositivewithrespecttosignal ground RS 423 MIL 188 114 BAL MARK binary 1 A lead negative with respect to B lead EIA 530...

Страница 58: ...uit voltage 6 volts max Average DC offset 0V 0 4 volts Receivers Termination resistance 78 ohms 100 ohms 124 ohms unterminated specified with fail safe networks RCV DATA RCV CLK EXT TX CLK Input Impedance 7 4 k ohm minimum Differential between A and B 6 6 k ohm minimum Single ended A to ground with B grounded Input threshold 0 2 volts A versus B Operating Environment Operating Temperature 0 C 32 F...

Страница 59: ...erial and workmanship This warranty applies only to the original purchaser and is non transferable unless expresswrittenauthorizationofthewarrantytransferisgranted by TTC Liability under this warranty extends only to the replace ment value of the equipment The warranty is void if 1 Equipment has been altered or repaired without specific authorization from TTC 2 Equipment is installed or operated o...

Страница 60: ...be provided in the Equipment Repair Report Once an out of warranty repair is made the repaired part or component is warranted for 90 days This warranty applies only to the part or component that was repaired other parts or componentsarenotcoveredunderthe90 dayrepairwarranty 8 3 4 Equipment Return Instructions The customer should attach a tag to all equipment re turned for repair that includes the ...

Страница 61: ...ERFACE FACTORY DEFAULTS Table A 1 Data Interface Default Settings Item Factory Default TYPE RS449 CONNECTOR D Type EMULATE DTE MODE BAL IMPEDANCE 100 ohms TIMING SYNC DATA BITS 8 PARITY ODD STOP BITS 1 RCV CLOCK AUTO SIGNALING TM OFF CTS OFF LL OFF RL OFF SIGNALING POS APPENDIX A ...

Страница 62: ...56 TELECOMMUNICATIONS TECHNIQUES CORPORATION ...

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