MAN-12150-US001_MTT_41_F00_PRINT

1SSxDSL-9M

302 Enzo Drive San Jose, CA 95138Tel: 1-408-363-8000 Fax: 1-408-363-8313

Datacom/DDS Modulefor the

MTT and xDSLFamily of Products

User’s ManualSSxDSL-9M

MAN-12150-US001 Rev. F00

2 Datacom and DDS Module

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Disclaimer:Contentssubjecttochangewithoutnotice.

3SSxDSL-9M

Datacom and DDS Module

1 Datacom/DDS Module ...................................... 51.1 Datacom/DDS Connector Panel ......................................5

1.2 LEDs .................................................................................6

2 Menus ................................................................ 72.1 Datacom Functions ...........................................................8

2.1.1 Datacom Test Configuration ..........................................82.1.2 Send Test Pattern ........................................................102.1.3 Measurement Results ..................................................112.1.4DatacomInterface .......................................................142.1.5OtherMeasurements ...................................................162.1.5.1ViewReceiveData ...................................................162.1.5.2 Propagation Delay ....................................................16

2.2DDS4WFunctions .........................................................172.2.1 DDS Test Configuration ...............................................172.2.2 Loopback Testing .........................................................192.2.3DDS-4WMeasurementResults ..................................212.2.4OtherMeasurements ...................................................242.2.4.1 ViewReceiveData ...................................................24

2.3View/Store/Print ..............................................................252.3.1 Saving a Test ...............................................................262.3.2ViewingaStoredTest ..................................................262.3.3 Printing a Stored Test ..................................................262.3.4 Deleting a Stored Test .................................................262.3.5 Locking and Unlocking a Stored Test...........................262.3.6 Renaming a Stored Test ..............................................27

2.4 Profiles ............................................................................28

3 Applications .................................................... 293.1 Point-to-Point Datacom Testing.......................................29

3.2FaultLocationwithRemote&LocalLoopbacks .............31

4 Reference ........................................................ 334.1IntroductiontoDatacomTechnology ..............................33

4.2 Communication Components .........................................33

4.3 Transmission Basics .......................................................34

4.4DataNetworks ................................................................34

4.5 Call Control Procedure ...................................................35

4.6 Physical Layer Protocols ................................................37

4.7 Standard Test Patterns ...................................................43

4.8 DDS Test Patterns ..........................................................44


5 General Information ....................................... 455.1 Testing and Calibration Statement ..................................45

5.2ExpressLimitedWarranty ...............................................45

Index ..................................................................... 47

5SSxDSL-9M

1 Datacom/DDS Module

The Datacom/DDS module provides transmission and BER testing throughbothDatacomandDDS-4Winterfaces.Datacomtestingsupports DTE, DCE, and monitor modes from a V.35, RS232, RS449, RS530, or X.21 interface. The DDS interface provides DDS-4 wire testing at the CPE (DSU/CSU emulation) for theprimary channel.

1.1 Datacom/DDS Connector Panel

TheDatacom/DDSconnectorpanelisshowninFigure1.

DDS4W

DATACOM

Figure 1 Connector Panel

Thepanelportsareusedasfollows:

DATACOM: Use this port in the datacom mode. The SS308 cable alongwithaDatacomadaptermustbeused.Thevariousadapt-ers are:

• SS267:V.35• SS253:X.21/V.11• SS254:RS232/V.24• SS255:RS449/V.36• SS262-B:RS530

DDS 4W:UsethisportforDDS-4wiremode.ThisRJ-48interfaceconnectstothe4-wirelocalloop.Thepinassignmentsare:

Pin Function

1 Transmitdatatolocalloop(R)

2 Transmitdatatolocalloop(T)

3 Not used

4 Ground

5 Ground

6 Not used

7 Receivedatafromthelocalloop(T1)

8 Receivedatafromthelocalloop(R1)

Table 1 DDS 4W Pinout

1.2 LEDs


SSMTT-ACM, -ACM+, -EX SSMTT-B, -C

Figure 2 LED Panels

ThefollowingtestsetLEDsareused:

MODULE• Green:Indicatesthatthetestsetisinmodulemode.

SIGNALUsed only in DDS testing.• Green:AsignalontheDDS-4Winterfaceisbeingreceived.• Red:Thetestsetisnotreceivingasignalasexpected.

ERRORSUsed only in DDS testing.• Red:Thetestsetiscurrentlydetectinganerror.Forexample,

whenthetestsetdetectsaBPV.• BlinkingRed:Thetestsetpreviouslydetectedanerror,but

thaterrorisnolongerpresent.PressHISTORYtoclear.

PAT SYNC• Green:Thetestsethasachievedpatternsynchronizationdur-

ing Datacom or DDS BER testing.• Red:Thetestsethaslostpatternsynchronizationorcannot

achieve pattern sync.

BIT ERR• Red:Thetestsetiscurrentlydetectingbiterrors.• BlinkingRed:Thetestsetpreviouslydetectedbiterrors,but

theyarenolongerpresent.PressHISTORYtoclear.

2 Menus

7SSxDSL-9M

Figure3showsthemenutreeforthemodule.

2.1DATACOM MENU

2.1.1TEST CONFIGURATION

SEND TEST PATTERN2.1.2

MEASUREMENT RESULTS2.1.3

DATACOM INTERFACE2.1.4

OTHER MEASUREMENTS2.1.5

2.2DDS 4W MENU

2.2.1TEST CONFIGURATION

LOOPBACK TESTING2.2.2

MEASUREMENT RESULTS2.2.3

OTHER MEASUREMENTS2.2.4

2DATACOM/DDS MAIN MENU

2.1DATACOM FUNCTIONS

DDS 4W FUNCTIONS2.2

VIEW/STORE/PRINT2.3

PROFILES2.4

MODULEKEY

Figure 3 Menu Tree

2.1 Datacom Functions

This provides transmission and BER testing using any of the previously listed datacom interfaces. The menu contains:


• TESTCONFIGURATION• SENDTESTPATTERN• MEASUREMENTRESULTS• DATACOMINTERFACE• OTHERMEASUREMENTS

2.1.1 Datacom Test Configuration

RS530 RS232A RS232S more

V.35 RS449 X.21 more

11:50:45 Meas

TEST CONFIGURATION

INTERFACE : V.35 MODE : DCE TxDATA CLK: RECEIVE TEST RATE : 2400 TCLK POLAR: NORMAL RCLK POLAR: NORMAL

Figure 4 Datacom Test Configuration Screen

Configurethefollowing:

INTERFACEOptions:V.35(F1),RS449(F2),X.21(F3),RS530(more,F1),RS232A(more,F2),RS232S(more,F3)Determine the datacom electrical interface. Confirm that the cor-rect adapter is used. Note: Disconnect from circuit, then change the interface mode.

MODEOptions:DCE(F1),DTE(F2),MON(F3)

• DCE:EmulateDataCircuitEquipmentfacingaDTE.• DTE:EmulateDataTerminalEquipmentfacingaDCE.• MON:Allowsforbidirectionalmonitoringofadatacomcircuitus-

ingtheSS267Yy-adaptercable.ForV.35andRS449monitoring,thetestsetwillpresentaterminatingresistortothelinewhichcould cause a double termination and affect signal amplitude.

TxDATA CLKOptions:INTERN(F1),RECEIVE(F2)

• INTERN:Thetestsetprovidescircuittiming.

9SSxDSL-9M

• RECEIVE:Thetestsetusesthereceivedsignalasthetransmitsignalclocksource(slavetiming).

TEST RATEThe available selections depend on the selected datacom electri-calinterface.TheyareshowninTable2:

Interface F1 F2 F3V.35, RS449, X.21, RS530

more

more

more

more

300

2400

14.4k

38.4k

64k

600

4800

19.2k

48k

_Nx56K

1200

9600

28.8k

56k

_Nx64KNote:IfNx56korNx64Kisselected,presstherespectiveF-keytochange rate.

RS232S(sync)

more

more

more

more

300

2400

14.4k

38.4k

64k

600

4800

19.2k

48k

128K

1200

9600

28.8k

56k

RS232A(async)

more

more

more

300

2400

14.4K

38.4k

600

4800

19.2k

57.6k

1200

9600

28.8k

115.2k

Table 2 Test Rates

TCLK POLAROptions:NORMAL(F1),INVERT(F2)• NORMAL:Thetestsetwillreceiveandtransmitdatainalignment

withtheclocking.• INVERT:Thetestsetwillassumedataisreceivedwith180

degreephasedifferencefromtheclockandthetestsetwilltransmit data 180 degree from the clock.

RCLK POLAROptions:NORMAL(F1),INVERT(F2)• NORMAL:Thetestsetwillreceiveandtransmitdatainalign-

mentwiththeclocking.• INVERT:Thetestsetwillassumedataisreceivedwith180

degreephasedifferencefromtheclockandthetestsetwilltransmit data 180 degrees from the clock.

Test Configuration for RS232 Async Mode


RS530 RS232A RS232S more

V.35 RS449 X.21 more

11:50:45 Meas

TEST CONFIGURATION

INTERFACE : RS232A MODE : DCE TEST RATE : 2400 BIT/CHAR : 8 STOP BITS : 1 PARITY : NONE

Use this screen to configure the test set for RS232 asyn-chronous (RS232A) mode.

Figure 5 RS232A Datacom Configuration Screen

The three unique asynchronous configuration settings are:

BIT/CHAROptions:8(F1),7(F2),6(F3),5(F4)

Determinehowmanybitswillbetransmittedforeachcharacterof information. The DTE and DCE should be the same.

STOP BITSOptions:1(F1),1.5(F2),2(F3)

Determinehowmanystopbitswillbetransmittedforeachchar-acter of information. The DTE and DCE should be the same.

PARITYOptions:NONE(F1),ODD(F2),EVEN(F3)

Determinehowmanyparitybitsaretransmittedforeachcharacterof information. The DTE and DCE should be the same.

2.1.2 Send Test Pattern

PAT INV

11:50:45 Meas

TEST PATTERN

63 127 511 2047 2e15 2e20 2e23 QRSS 1-8 1-16 3-24 ALL1 ALL0 1010 IDLE 550CT 55DLY DDS1 DDS2 DDS3 DDS4 DDS6 FOX

TEST PATTERN: 63 PAT INV : NORMAL

Use this screen to select the transmit test pattern. The screen shows the available test pattern. See Sections 4.7 and 4.8 for pattern information.

Press F1 to invert the test pattern. The PAT INV line at the bottom of the screen indicates the pattern’s status, NORMAL or INVERT.

Figure 6 Datacom Send Test Pattern Screen

2.1.3 Measurement Results

11SSxDSL-9M

These screens report on the received signal. They share the fol-lowingF-keys:

STOP/START(F1):Presstostopthemeasurement,pressagainto restart the measurement and reset all counters to zero.

CONFIG (F2): Press to configure RT (RemainingTime), seeMeasurement Configuration at the end of this section.

PRINT(F3):Presstoprintresults.

STORE(F4):Presstosaveresults.SeeSection 2.3.

Push or toviewtheavailablescreens.

Thefollowingstatusinformationisdisplayedineachscreen:

ET:ElapsedTimesincethemeasurementwasstarted.

RT:RemainingTimeofthemeasurement.ThisissetviaCONFIG(F2).Ifnotimeisset,thedefaultiscontinuous(CONTINU).

TYPE: This is the datacom electrical interface selected in the configuration screen.

MODE: This is the mode, as set in the configuration screen.

TxHz: This is the transmitted data rate, in hertz.

RxHz: This is the received data rate, in hertz.

PAT: This is the transmit pattern selected in Send Test Pattern.

Summary Screen

STOP

11:50:45 MeasET- 000:35:32 RT- CONTINU

DATACOM-SUMMARY

TYPE- RS449 MODE- DTETxHx- RECEIVE RxHz- 9600PAT - 63

RxDL - 1 RxDLS- 6PATL - 1 PATLS- 6BIT - 0 BER - 0.0e-06

CONFIG PRINT STORE

This screen reports the follow-ing basic information on data loss, pattern loss, and bit errors:

RxDL: Count of the number of occurrences of Received Data Loss.

RxDLS: Number of seconds during which data was lost.

PATL: Count of the number of occurrences of pattern loss.

Figure 7Datacom Summary Screen

PATLS: Pattern Loss Seconds indicates the number of seconds duringwhichpatternwaslost.

BIT: Count of bit errors since the beginning of the test.

BER: Bit Error Rate since the beginning of the test.

Bit Error Screen


STOP

11:50:45 MeasET- 000:35:32 RT- CONTINUTxHx- RECEIVE RxHz- 9600PAT - 63 MODE- DTE

DATACOM-BIT ERROR

BIT - 0 BER - 0.0e-06ES - 0 %ES - 0.000SES - 0 %SES - 0.000EFS - 518 %EFS - 100.000AS - 518 %AS - 100.000UAS - 0 %UAS - 0.000SLIP - 0

CONFIG PRINT STORE

This screen provides detailed bit error measurements, based on ITU G.821. The following is reported:

BIT: Count of bit errors since the start of the test. Bit errors are not counted during UAS.

BER: Average Bit Error Rate, since the start of the test. This measurement is reported as N/A when the test set is not synchronized on a known received pattern.

Figure 8Datacom Bit Error Screen

ES:CountofErroredSecondssincethestartofthetest.ItisaonesecondperiodinAStimeduringwhichoneormorebiterrorswasdetected.

%ES: Percentage of Errored Seconds since the start of the test.

SES: Count of Severely Errored Seconds since the start of the test.ItisaonesecondperiodwheretheBERisequalorworsethan 10e-03.

%SES: Percentage of Severely Errored Seconds since the start of the test.

EFS: Count of number of bit Error Free Seconds since the start of the test.

%EFS: Percentage of bit Error Free Seconds since the start of the test.

AS: Count of Available Seconds since the start of the test. A bit AS is any bit error free, bit errored, or bit severely errored second.

%AS: Percentage of Available Seconds since the start of the test.

UAS: Count of Unavailable Seconds since the start of the test. They are counted at the onset of 10 consecutive SES.

%UAS: Percentage of Unavailable Seconds since the start of the test.

SLIP: Count of bit Slips since the start of the test.

Block Error Measurements Screen

13SSxDSL-9M

STOP

11:50:45 MeasET- 000:35:32 RT- CONTINUTxHx- RECEIVE RxHz- 9600PAT - 63 MODE- DTE

DATACOM BLOCK ERROR MEASUREMENT

BLOCK SIZE - 1000# OF BLOCK - 10130BLOCK ERROR - 0BLOCK ERR RATE- 0.0e-06

CONFIG PRINT STORE

This screen reports block error performance, based on ITU G.826. In Monitor mode, results are shown for both received signals (from DTE and from DCE). The following is reported:

BLOCK SIZE: Reports the block size (number of bits in a block). There are 1000 bits per block. Figure 9

Datacom Block Error Screen

# OF BLOCK: Reports the total number of blocks received during Elapsed Time.

BLOCK ERROR: Reports the number of blocks that contain one or more bit errors.

BLOCK ERR RATE: The Block Error Rate refers to the fraction ofblocksinerror-thenumberofblocksreceivedwith1ormorebiterrors(BLOCKERROR)dividedbythetotalnumberofblocksreceived(#ofBLOCKS).

Measurement Configuration Screen

To access this screen in any of the result screens, press F1 to stop the measurement, then press F2 to access the configu-ration screen shown to the right.

• To enter numbers, press SHIFT and use the numeric keypad. Press SHIFT when done.

CONTINU

11:50:45

MEAS CONFIGURATION

MEAS DURATION: CONTINU START : MANUAL PROG DATE MDY: --:--:---- PROG TIME HMS: --:--:-- PRINT RESULT : NONE

TIMED

Figure 10 Measurement Configuration Screen

Configurethefollowing:

MEAS DURATIONOptions:CONTINU(F1),TIMED(F2)

• CONTINU:Pressforacontinuousmeasurement,RTintheresultsscreenswilldisplayCONTINU.

• TIMED:Pressforatimedmeasurement,CONTINUisreplaced


with000:00.Enterfrom1minuteto999hoursand60minutes.RTwillnowdisplaythetimeenteredandcountdowntozeroafter START is pressed or if the test set has been programmed to automatically start the measurement.

STARTOptions:MANUAL(F1),PROGRAM(F2)

• MANUAL:Presstomanuallystartmeasuring.• PROGRAM:Presstoprogramafuturestartdateandtime,note

thattheendtimeiscontrolledbyMEASDURATION.Press toprogramafuturedateintheMM:DD:YYYYformat.Press

againtoenterafuturestarttimeintheHH:MM:SSformat.

PRINT RESULTOptions:TIMED(F1),LAST(F2),NONE(F3)

• TIMED:Presstoprintthethreescreensofresultsevery2-99minutes.

• LAST:Presstoprintthethreescreensofresultsattheendofa timed test.

• NONE:Noresultsareautomaticallyprinted.

2.1.4 Datacom Interface

This screen allows monitoring of the received control leads, as well as control of the transmit leads.

The left column lists the different transmit signals that can be changed by turning ON or OFF. To change the status of one of these leads, select it and press either ON (F1) or OFF (F2).

The right column displays the status of the received control leads.

Figure 11Datacom Interface Screen-DTE

ON OFF

11:50:45

DCOM INTERFACE

MODE - DTE TYPE - V.35

TRANSMIT RECEIVE RTS : ON CTS : ON DTR : ON DSR : ON LL : ON DCD : ON RL : OFF TxCLK: LIVE RxCLK: LIVE DATA : LIVE

Thetransmit/receiveleadsdependonthetestmode.InFigure11,the test set is configured for DTE mode; RTS, DTR, LL, and RL arethetransmitleads.IfthetestsetwassetforDCEmode,thesewouldbethereceiveleads.Theleadsaredefinedasfollows:

RTS: Request To Send, DTE to Modem, tells the modem to acti-vate its outgoing carrier.

DTR: Data Terminal Ready, DTE to modem, indicates that the DTE is ready to accept incoming calls.

LL: Local Loopback, DTE to Modem, tells the local modem to

15SSxDSL-9M

activatealocalloopback,whereitsmodulatedoutputisdiscon-nected from the phone line and is looped back to its demodulated output.

RL: Remote Loopback, DTE to Modem, tells the local modem to send a message to the remote modem to have the remote modem loop back its Rx Data to its Tx Data.

CTS: Clear to Send, Modem to DTE, indicates that the outgoing carrier is on and that the DTE should begin sending data.

DSR: Data Set Ready, Modem to DTE, indicates that a call con-nection has been established.

DCD: Data Carrier Detect, Modem to DTE, indicates that the modem senses an incoming carrier from the phone line.

TxCLK: Transmit Clock, Modem to DTE, drives the transmit shift register inside the DTE.

RxCLK: Receive Clock, Modem to DTE, flashes on at the midpoint ofeachbitontheReceiveDatawire.

DATA:ModemtoDTE,wheretheactualdataiscarried.

Datacom Interface Screen-X.21This interface differs from the others. It uses a very economical 15-pin connector. Due to this small connector, there are fewer signals. X.21 has transmit, receive wires, ground, a clock for synchronous transmission, and two control wires.

The DTE and DCE signals are represented by the status of these control wires, as well as by sending control characters on the receive and transmit data wires. The two control wires are CTRL (Control), send DTE to DCE, and IND (Indication) send DCE to DTE.

Figure 12Datacom Interface Screen-

X.21 DTE

ON OFF

11:50:45

DCOM INTERFACE

MODE - DTE TYPE - X.21

TRANSMIT RECEIVE CTRL : ON IND : ON DTR : ON DATA : LIVE

2.1.5 Other Measurements


This menu contains:

• VIEWRECEIVEDATA• PROPAGATIONDELAY

2.1.5.1 View Receive Data

The following is reported:

NO: Reports the byte number.

01234567: Reports the eight data bits.

HEX: Reports the hexadecimal representation of the eight bits.

The following F-key is available:

PAUSE/RESUME (F1): Press to stop live monitoring of the line, trapping the data, Press again to resume monitoring the line in real time.

Figure 13DCOM View Receive

Data Screen

PAUSE

11:50:45 Meas

DCOM VIEW RECEIVE DATA DTENO 01234567 HEX NO 01234567 HEX

01 11101000 E8 09 01010111 5702 01110001 71 10 11110000 F003 00100110 26 11 00100000 2004 00100110 26 12 00100000 2005 11110110 F6 13 10001111 8F06 00110100 34 14 00100010 2207 10111011 BB 15 11001110 CE08 10011001 99 16 10100111 A7

2.1.5.2 Propagation Delay

This feature reports the propagation delay of a looped back signal. During the propagation delay measurement, the test set measures the number of unit intervals (UI) it takes for the signal to travel down the line and then return. This number is converted into µS (micro seconds) of roundtrip delay. The measurement starts as soon as the screen is displayed, reporting the following:

RESTART

11:50:45

PROPAGATION DELAY

ROUNDTRIP DELAY: 334 UI

ROUNDTRIP TIME: 216 us

OFFSET: 84 UI

CALIB

Figure 14Propagation Delay Screen

ROUNDTRIP DELAYinUnitIntervals.

ROUNDTRIP TIME in micro seconds.

OFFSETinUnitIntervals.

ThefollowingF-keysareavailable:

RESTART (F1):Presstorestartthemeasurement.Notethatthismeasurement requires a far end loopback.

CALIB(F2):Pressifmorethanonepieceofloopedequipmentisontheline.Toseethepropagationdelaybetweenthetwodevicesand not the test set, the test set must be recalibrated. Continue pressingtotakemeasurementsfartherdowntheline.

2.2 DDS 4W Functions

17SSxDSL-9M

Use this mode for installation and verification of 4-wire DDScircuits.ItcanperformaBERtestforout-of-servicetestingfromthecustomerpremise(CPE)towardthecentraloffice.Themenucontainsthefollowing:

• TESTCONFIGURATION• LOOPBACKTESTING• MEASUREMENTRESULTS• OTHERMEASUREMENTS

2.2.1 DDS Test Configuration

INTERN RECEIVE

11:50:45 Meas

DDS TEST CONFIGURATION

MODE : DDS-4W Rx LEVEL : TERM Tx CLOCK : RECEIVE RATE : 2400 Tx PATTERN: 63

Figure 15 DDS Test Configuration Screen

Configurethefollowingitems:

MODEOption:DDS-4W(F1)

• DDS-4W:Thisistheonlymodeavailable.

Rx LEVELOption:TERM(F1)

• TERM:ThisistheonlyReceiveLevelavailable,itisforout-of-service terminated testing.

Tx CLOCKOptions:INTERN(F1),RECEIVE(F2)

• INTERN:Presstousethetestset’sinternaltiming.• RECEIVE:Presstousethereceivedsignalasthetransmit

signal clock source. The test set is then in slave timing and usesthetimingsourcefromthenetwork.

RATEOptions:2400(F1),4800(F2),9600(F3),19.2K(more,F1),56K


(more,F2),64K(more,F3)

Select the appropriate rate for testing.

Tx PATTERNOptions:63(F1),511(F2),2047(F3),more(F4)

Select the test pattern to transmit on the primary channel. Select from63,511,2047,orpress‘more’(F4)todisplayatestpatternselectionscreenasshowninFigure16.

PAT INV

11:50:45 Meas

TEST PATTERN

63 511 2047 ALL1 ALT10 1-4 FOX 2e15 2e20 2e23 QRSS 550CT 55DLY DDS2 DDS3 DDS4 DDS5 DDS6 1-8 1-16 3-24 ALL0

TEST PATTERN: 63 PAT INV : NORMAL

Use the screen to the right to select a desired transmit test pattern. See Sections 4.7 and 4.8 for test pattern notes.

Figure 16 DDS Primary Channel Test Pattern Screen

2.2.2 Loopback Testing

Use this to send loopback commands to a far end DSU device. Use

19SSxDSL-9M

it to also respond to loopback commands by providing a loopback tothenetworkforcentralofficetesting.

Transmit Loopback Commands

LOOP-UP

Use this procedure to send loopback commands from the test set. Far end DSU devices are looped by using a DSU latching loopback command. In addition, enter code bits to control the LSC (Loopback Select Code).

LOOP-DN SELF-LP STOP

11:50:45 Meas CSU/DSU LOOPBACK COMMAND : LOOP-UP CODE : LATCH LSC TYPE: DSU BYTE: S1110111 RESULTS LPT :000:00:08 ET :000:03:41 R E BIT :0 T U ES :0 T UAS :0 BPVS:0 CSU/DSU FREQ:56001 STATUS:LOOP-UP OK

Figure 17 Successful Loopback Screen

1. Configure DDSTEST CONFIGURATION as required. SeeSection 2.2.1.Whenfinished,pressESC.

2. SelectLOOPBACKTESTING,CODEisfixedatLATCHwhichsendsthefollowingDSUlatchingloopbacksequence:A. 40TIP(TransitioninProgress)bytesS0111010B. 40LSC(LoopbackSelectCode)bytesS1110111C. 120LBE(LoopbackEnable)bytesS1010110D. 40FEV(FarEndVoice)bytesS1011010

Note:TheLSCTYPEsettingprovidesaddedcontrolviatheUSER F-key; the test set inserts this code as the LSC byte in the sequence above. Therefore, if the standard DSU-LAT command is to be sent, then use the default; S1110111.

3. SelectCOMMANDandpressF1toloop-up.STATUSshouldreport“INPROG”whilethecommandisbeingsent.

Ifsuccessful,LOOPSTATUSreports“LOOPUPOK”andthegraphicupdatesasshowninFigure17.

Iftheloopbackfails,LOOPSTATUSreports“LOOPUPFAIL”andthegraphicdoesnotshowaloopback.

PressSELF-LP(F3)toloopbackasignalfromthetestset’sRx to Tx ports.

4. This screen has counters at right, they provide all the neces-sary test results for common testing.

5. Whenfinished,selectCOMMANDandpressF2toloopdown.LOOPSTATUSshouldreport“LOOPDNOK”andthegraphicshouldshowthattheloopisdown.

Receive Loopback Commands


LOOP-UP

Use this procedure to respond to loop commands. In this, the test set responds to DSU-latching loopback commands providing a loopback to the central office/network.

LOOP-DN SELF-LP STOP

11:50:45 Meas CSU/DSU LOOPBACK COMMAND : LOOP-UP CODE : LATCH LSC TYPE: DSU BYTE: S1110111 RESULTS LPT :000:03:41 ET :000:02:11 R E BIT :0 T U ES :0 T UAS :0 BPVS:0 CSU/DSU FREQ:56001 STATUS:LOOP-UP OK

Figure 18 Loopback Response Screen

1. Configure DDSTEST CONFIGURATION as required. SeeSection 2.2.1.Whenfinished,pressESC.

2. SelectLOOPBACKTESTING,CODEisfixedatLATCH.ThetestsetwillrespondtoDSU-latchingcommands.

3. ThetestsetwillnowrespondtoanincomingLATCHcommandand provide a loop.

This screen must be displayed to respond to loopback com-mands.

If the test set detects the LATCH loopback command, thescreenwillappearasinFigure18.NotethatSTATUSreports“LOOPUP”andthegraphicshowsthetestsetlooped.

2.2.3 DDS-4W Measurement Results

21SSxDSL-9M

These screens provide data on the received signal. The screens sharethefollowingF-keys:PAUSE/RESUME (F1): Press to pause the measurement, pressagaintoresumethemeasurementwithoutresettingthecounters.STOP/START(F2):Presstostopthemeasurement,pressagainto restart the measurement and reset all counters to zero.PRINT(F3):Presstoprinttheresults.STORE(more,F2):Presstosavetheresults,seeSection 2.3.CONFIG(more,F3):PresstoconfigureRT,seeSection 2.1.3- Measurement Configuration Screen.Push or toviewtheavailablescreens.

Thefollowingstatusinformationisdisplayedineachscreen:ET:ElapsedTimesincethemeasurementwasstarted.RT:RemainingTimeofthemeasurement.ThisissetviaCONFIG(more,F3).Ifnotimeissetthedefaultiscontinuous.MODE:Displaysthetestmode(DDS-4W).TX PAT: Displays the test pattern transmitted by the test set.RX PAT: Displays the received test pattern.

DDS Summary ScreenThis screen provides information on the received DDS signal.The following is reported:BIT: Count of Bit errors since the start of the test. They are not counted during UAS.BER: Averaging Bit Error Rate, since the start of the test. This is reported as N/A when the test set is not synchronized on a known received pattern.ES: Count of Error Seconds since the start of the test. It is a one second period in AS time during which one or more bit errors was detected.

PAUSE

11:50:45 MeasET- 000:35:32 RT- CONTINUMODE : DDS-4W TX PAT: 2047 RX PAT: 2047

DDS-SUMMARY

BIT - 0 BER - 0.0e-06ES - 0 %ES - 0.000SES - 0 %SES - 0.000UAS - 0 %UAS - 0.000LPP - -2.28 dB VPP - 1.94 VFREQ - 56000

STOP PRINT more

PAUSE STORE CONFIG more

Figure 19DDS Summary Screen

%ES: Percentage of Error Seconds since the start of the test.SES: Count of Severely Errored Seconds since the start of the test.ItisaonesecondperiodwheretheBERisequalorworsethan 1e-03.%SES: Percentage of Severely Errored Seconds since the start of the test.UAS: Count of Unavailable Seconds since the start of the test. They are counted at the onset of 10 consecutive SES.


%UAS: Percentage of Unavailable Seconds since the start of the test.LPP: Received Level Peak-to-Peak in dB.VPP: Received Voltage Peak-to-Peak.FREQ:ReceivedfrequencyinHz.

DDS Results ScreenThis screen reports alarm and error information on the physi-cal signal. The results are given in terms of seconds, the number of seconds containing at least one of the indicated error or alarm conditions.

PAUSE


DDS-RESULTS

BPVS - 0 OOS - 0FBES - 0 OOFS - 0LOSS - 0LOFS - 0EXZS - 0LPP - -2.28 dB VPP - 1.94 VFREQ - 56000

STOP PRINT more

Figure 20 DDS Results Screen

Thefollowingisreported:BPVS:CountofthenumberofsecondswithBipolarViolations.OOS:OutofServiceSecondsindicatesthenumberofsecondsduringwhichthiscodewasreceived.FBES: Frame Bit Error Seconds counts the number of seconds duringwhichoneormoreframebiterrorswasdetected.OOFS:OutOfFrameSecondscountsthenumberofsecondsduringwhichanOOFcodewasreceived.Thismeasurementisapplicableonlytooperationwithoutthesecondarychannel.LOSS: Loss of Signal Seconds provides the number of seconds duringwhichthesignalwaslost.LOFS: Loss of Frame Seconds counts the number of seconds duringwhichframesynchronizationwaslost.EXZS: Excess Zeros Seconds counts the number of seconds containingexcesszeros.Thisoccurswhenthereare12ormoreconsecutive zeros for all data rates up to 19.2K and 14 or more consecutivezerosfor56K.Itisnotcountedfor64Kbps.

LPP: Level Peak-to-Peak provides the received level in dB.

VPP: Displays the peak-to-peak received voltage.

FREQ: Displays the received frequency.

Logical Results Screen

23SSxDSL-9M

This screen reports bit perfor-mance for out-of-service BER testing with a standard test pattern. The test set must achieve pattern synchroniza-tion; otherwise, it reports UAS.

PAUSE


LOGICAL - PRIMARY CH 1

BIT - 0 BER - 0.0e-0ES - 0 %ES - 0.00SES - 0 %SES - 0.00UAS - 0 %UAS - 0.00DGRM - 0 %DGRM- 0.00SYLS - 0 %SYLS- 0.00AS - 23 %AS - 100.00EFS - 23 %EFS - 100.00

STOP PRINT more

Figure 21 Logical Results Screen

Thefollowingisreported:

BIT: Count of bit errors since the start of the test. Bit errors are not counted during UAS.

BER: Averaging Bit Error Rate, since the start of the test. This measurement isreportedasN/Awhenthetestset isnotsyn-chronizedonaknownreceivedpattern.

ES:CountofErroredSecondssincethestartofthetest.ItisaonesecondperiodinAStimeduringwhichoneormorebiterrorswasdetected.

%ES: Percentage of Errored Seconds since the start of the test.

SES: Count of Severely Errored Seconds since the start of the test.ItisaonesecondperiodwheretheBERisequalorworsethan1e-03,wherethereisalossofsignal,orwherethereisaloss of framing.

%SES: Percentage of Severely Errored Seconds since the start of the test.

UAS: Count of Unavailable Seconds since the start of the test. They are counted at the onset of 10 consecutive SES.

%UAS: Percentage of Unavailable Seconds since the start of the test.

DGRM: Number of Degraded Minutes since the start of the test. ADGRMcontains60consecutivenon-severelyerroredsecondsduringwhichtheBERisworsethan1e-6butbetterthan1e-3.

%DGRM: Percentage of Degraded Minutes since the start of the test.

SYLS: Number of Synchronization Loss Seconds since the start of the test.

%SYLS: Percentage of Synchronization Loss Seconds since the start of the test.

AS: Count of available seconds since the start of the test. A bit AS


is any bit error free, bit errored, or bit severely errored second.

%AS: Percentage of Available Seconds since the start of the test.

EFS: Number of Error Free Seconds since the start of the test.

%EFS: Percentage of Error Free Seconds since the start of the test.

2.2.4 Other Measurements

This menu contains:

• VIEWRECEIVEDATA

2.2.4.1 View Receive Data

The following is reported:

NO: Reports the byte number.

01234567: Reports the eight data bits.

HEX: Reports the hexadecimal representation of the eight bits.

The following F-key is available:

PAUSE/RESUME (F1): Press to stop live monitoring of the line, trapping the data, Press again to resume monitoring the line in real time.

Figure 22DDS View

Receive Data Screen

PAUSE

11:50:45 Meas

DDS VIEW RECEIVE DATA

NO 01234567 HEX NO 01234567 HEX

01 11101000 E8 09 01010111 5702 01110001 71 10 11110000 F003 00100110 26 11 00100000 2004 00100110 26 12 00100000 2005 11110110 F6 13 10001111 8F06 00110100 34 14 00100010 2207 10111011 BB 15 11001110 CE08 10011001 99 16 10100111 A7

2.3 View/Store/Print

25SSxDSL-9M

Usethisscreentomanage,view,andprintstoredresults.Tostoreresults, use the procedure in Section 2.3.1.

VIEW PRINT more

RENAME UN/LOCK DELETE more

10:50:10

VIEW/STORE/PRINT Free space: 113745 kbyte NAME TYPE LOCK 1. DDS0001 DDS 2. DCOM0002 DCOM 3. 4. 5. 6. 7. 8. 9.10.

Figure 23 View/Store/Print Screen

ThefollowingF-keysareavailable.

VIEW (F1):Allowsviewingofaselectedfile,seeSection 2.3.2.

PRINT (F3):Allowsprintingofaselectedfile,seeSection 2.3.3.

RENAME(more,F1):Displaysacharacterentryscreen,showninFigure24,whichallowsforrenamingastoredtest,seeSec-tions 2.3.1 and 2.3.6.

UN/LOCK (more,F2):Allows lockingandunlockingafile,seeSection 2.3.5.

DELETE(more,F3):Allowsdeletinganunlockedfile,seeSec-tion 2.3.4.

2.3.1 Saving a Test

1. FromanyscreenwithaSTOREF-key,pressitandthetestis


savedwithagenericfilenameasaCSVfilethatcanbeopenedwithmostspreadsheetprograms.ThesefilesarestoredintheMMC card under RESULT > CSV.

2.3.2 Viewing a Stored Test

1. Fromthemodulemainmenu,selectVIEW/STORE/PRINT.2. Selectthedesiredfilewith andpressF1toviewthestored

result.3. Use to scroll through the available screens.4. Whenfinished,pressESC.

2.3.3 Printing a Stored Test

1. Connect a SunSet printer to the serial port of the test set.• Forother typesofprintersor formore information, refer to

the Storing and Printing chapter in the test set chassis User’s Manual.

2. Fromthemodulemainmenu,selectVIEW/STORE/PRINT.3. Selectthedesiredfilewith andpressF3andthefilewill

begin printing.4. Whenfinished,pressESC.

2.3.4 Deleting a Stored Test

1. Fromthemodulemainmenu,selectVIEW/STORE/PRINT.2. Selectthedesiredfilewith andpressDELETE(more,F3)

and the file is deleted if unlocked.3. Whenfinished,pressESC.

2.3.5 Locking and Unlocking a Stored Test

1. Fromthemodulemainmenu,selectVIEW/STORE/PRINT.2. Selectthedesiredfilewith andpressUN/LOCK(more,

F2)andthefileislockedorunlockedasindicatedtotherightofthefilename.RefertothelockiconshowninFigure23.

3. Whenfinished,pressESC.

2.3.6 Renaming a Stored Test

1. Fromthemodulemainmenu,selectVIEW/STORE/PRINT.2. Selectthedesiredfilewith .

27SSxDSL-9M

• PressUN/LOCK(more,F2)ifthefileislockedasindicatedbythe lock icon as in Figure 23.

3. PressRENAME(F1)andacharacterentryscreen like theoneshowninFigure24isdisplayed.

INSERT DELETE INPUT SAVE

11:50:45

VIEW/STORE/PRINT

FILENAME: DCOM0002

A a B b C c D d E e F f G g H h I i J j K k L l M m N n O o P p Q q R r S s T t U u V v W w X x Y y Z z 0 1 2 3 4 5 6 7 8 9 - _ @ ! # $ % &

Figure 24 Filename Character Screen

4. PressINPUT(F3).Notethatthe‘A’characterishighlightedandtheINPUTF-keyhaschangedtoSTOP.

5. Use to select the desired character.6. Press ENTER to place the desired character in the label.

ContinuethisprocessuntiltheFILENAMElabeliscomplete.Youmayenterupto15characters.Ifamistakeismadeintheentry:A. Press F3 to stop.B. MovetheFILENAMEcursortotheincorrectcharacter.C. Press F2 to delete the character or, press F1 to insert a

character.D. PressINPUT(F3)toselectacharacter.PressENTERto

insertthenewcharactertotheleftofthecursor.

7. PressSAVE(F4)toescapethecharacterentryscreenandreturntotheVIEW/STORE/PRINTscreen.

2.4 Profiles

Use the Profile function to store commonly used module configu-ration settings.


ThefollowingscreencontainsaDEFAULTprofile.Thisprofileisbased on the factory standard configuration of this module. To create other profiles, change the configuration settings in any availablescreens.Onceallconfigurationscreensarechangedasdesired,selectPROFILESfromthemodulemainmenuandselectablankline.PressF2andthesettingsaresavedwithageneric filename. Use this screen to manage profiles. The screen anditsfunctionsareasfollows:

DELETE LOCK more

LOAD RENAME more

11:50:45

PROFILE LIST Free space: 113729 kbyte FILENAME LOADED MODULE LOCK 1.DEFAULT NO DATA 2.P00001 NO DATA 3.SANTA ROSA YES DATA 4. 5. 6. 7. 8. 9.10.

STORE

Note: The DEFAULT file can’t be deleted or unlocked.

Figure 25 Profile List Screen

ThefollowingF-keysareavailable:

LOAD(F1):Presstochangeallconfigurationsettingsofthemod-uletomatchtheselectedprofile.TheLOADEDcolumnchangesfromNOtoYES.

STORE(F2):Presstosaveallcurrentconfigurationscreenswitha generic filename. Currently 10 profiles can be saved. The type ofmoduleisindicatedintheMODULEcolumn.

RENAME (F3): Select a filename and press F3 to change itsname. A character entry screen is displayed. Use the procedure in Section 2.3.6 to edit the name from step 4.

DELETE (more,F1):Press todeleteaselectedunlockedpro-file.

LOCK/UNLOCK(more,F2):Presstolockorunlockaselectedfile.Lock a profile to prevent changes. The files status is indicated by a lockiconintheLOCKcolumn.InFigure25DEFAULTislocked.

3 Applications

3.1 Point-to-Point Datacom Testing

29SSxDSL-9M

DATACOMPort

SS308DTE

ModemDCE

V.35

Note: SS308 is a SCSI-36 to DB37 Datacom cable.

Figure 26 Modem Testing with Datacom

Inthistest,thetestset(DTE)isconnectedtoamodem(DCE)toperformaBERtest.TheV.35interfacewillbeused.ThistestwillallowthetestsettosendandreceivesignalswithaDCE.

1. This testwilldisruptservice,verify the thatcircuit isoutofservice.

2. FromDATACOM/DDSMAINMENUselect,DATACOMFUNC-TIONS>TESTCONFIGURATIONandconfigureasfollows:

INTERFACE:Asrequiredbyinterface;inthisV.35isused. MODE:DTE TxDATACLK: INTERN, if thetestset is thetimingsource. If

thetestsetisusingtimingfromthenetwork,selectRECEIVE.Whenthetestsetusesreceivedtiming,thetestrateselectionisnotsignificant,sincethetestsetwillusethereceivedrate.

TEST RATE: as required by the modem TCLKPOLAR:NORMAL RCLKPOLAR:NORMAL

Whenready,pressENTER.

3. ConnectthetestsettothemodemasshowninFigure26.4. Select SEND TEST PATTERN and select a pattern. Certain

patterns may not be available depending on the test rate.5. PressENTERtoreturntotheDATACOMMENUandselect

DATACOMINTERFACE,seeFigure11fordetails.6. CheckthatthetransmitleadsRTSandDTRareturnedon.If

not, select the lead and press F1.• Turn these signals ON/OFF to test whether the modem is

receiving the test set’s signal.

7. SelectLL,LocalLoopandpressF1toturnon.Thiswillactivatea loop on the modem.


8. ExaminetheRECEIVEsideof thescreen.TxCLK,RxCLK,andDATAshouldallshowLIVE.

9. PressESCtoreturntotheDATACOMmenuandselectMEA-SUREMENT RESULTS.

• Thereceived(RCV)andtransmit(XMT)patternsshouldbethe same.

• ThePATSYNCLEDshouldbegreen.Ifnot,pressAUTO.IfthePATSYNCLEDstillisnotgreen,themodemmayhaveaproblem regenerating the pattern.

• TheRxHzshouldbethesameasthetransmittedrate.Ifthereis a discrepancy, the modem may have a problem retransmit-ting the clock.

10. Check the loop by injecting errors and confirming that they comeback.DothisbypressingERRINJ.

• TheBITERRORLEDshouldberedandonebiterrorshouldbe recorded in MEASUREMENT RESULTS.

11.Whenfinished,disconnectthetestset.

3.2 Fault Location with Remote & Local Loopbacks

This application provides a troubleshooting procedure using the remote and local loopback capabilities of the test set. Figure 27 showsaremoteandlocalloopback.

31SSxDSL-9M

Local Loopback

DTE RS-449 DCE

Modulator Output

DemodulatorOutput

Remote Loopback

Phone

Line

DTEWest

RS-449DCE

DCE

EastRCV Data

. . . . . .

XMT DataDTE

Figure 27 Local and Remote Loopback

1. FromDATACOM/DDSMAINMENUselect,DATACOMFUNC-TIONS>TESTCONFIGURATIONandconfigureasfollows:

INTERFACE:Asrequiredbytheinterface MODE:DTE TxDATACLK:INTERN TEST RATE: As required by the modem TCLKPOLAR:NORMAL RCLKPOLAR:NORMAL

Whenready,pressENTER.

2. Connect the test set to the modem under test.3. SelectDATACOMINTERFACEandconfirmthatthetransmit

leads, RTS, and DTR are on.4. Select LL and turn on to loop the modem. The transmit/receive

modemLEDsshouldbeactive.IfthereceiveLEDofthemodemis on, but not the transmit, then the modem is faulty. This is because it cannot transmit the received data back to the test set.

5. FromtheDATACOMMENUselect,MEASUREMENTRESULTSandverifythattheRxHzlineisequivalenttothetestrate.Ifnot,thenthemodemwillhaveaproblemretransmittingtheclock.

The received and transmitted patterns should be the same.


6. ThePATSYNCLEDonthetestsetshouldbegreen.Ifred,the modem may have a problem regenerating the pattern.

7. TestthevalidityoftheloopbypressingERRINJandverifythattheseerrorscomeback.TheBITERRORLEDshouldberedand a bit error should be in MEASUREMENT RESULTS.

Ifthepreviousstepshavebeencompletedsuccessfully,thenthe local modem is not at fault.

8. FromtheDATACOMMENU,selectDATACOMINTERFACEandturnofftheLL(localloop)line.

9. Nowthatthelocalmodemisruledout, thefarendmodemwillneedtobetestedusingaremoteloopback.Totestthere-mote loopback, check that the far end modem has a loopback capability at the interface. The modem must be able to loop TxDATA toRxDATA. It alsomust loopTxCLK,RxCLK,andTCLK to TxDATA.

10.Tousethemodem,aPCmaybeneededtodialout.Oncetheconnectionisinplace,disconnectthePCandreplaceitwiththe test set datacom connector.

ItmayalsobenecessarytosettheDTRtobealwaysonbyusingthePCsothatthelineisnotdroppedwhenswitchingfrom the PC to test set datacom connector.

12.From the DATACOM INTERFACE screen, check that thetransmitleadsRTSandDTRareon.Ifnot,turnthemon.

13.FromtheDATACOMMENU,selectMEASUREMENTRESULTSandverifythatRxHzisequivalenttothetestrate.Ifnot,thenthe clock is not received properly from the far end modem.

The received and transmitted patterns should be the same.

ThetestsetPATSYNCLEDshouldbegreen.

14.Iftheitemsinstep13areok,performaBERtestbypressingERRINJandverifythattheinjectederrorscomeback.Thetestset’sBITERRORLEDshouldberedandabiterrorshouldbe recorded in MEASUREMENT RESULTS.

Ifsuccessful,thenthephonelineandthefarendmodemareoperating properly.

Ifunsuccessfulthisindicatesaproblemwiththephonelineor the far end modem. To test the far end modem, perform a localloopbackonthatend,followingsteps5-11.

If there arenoproblems with this local loopback, then thephonelineisatfault.Ifthereare,thenthemodemisatfault.

4 Reference

4.1 Introduction to Datacom TechnologyData communication touches upon every area of our lives. Since

33SSxDSL-9M

therapidtechnologicaldevelopment in theareasof IntegratedCircuits, almost every form of communication can be transmitted digitally.Mostpeopleassociatedatacommunicationwithcomput-ers;however,recentapplicationsofdatacommunicationincludevoice, video, and image digitization.Due to the accuracy and cost effectiveness of digitizing, it is im-portant to understand the components and the process in a data communicationsnetwork.

4.2 Communication Components

Analog

FacilitiesDCEDTE DTEDCE

HostPC

Modem Modem TerminalTelephone

Line

Figure 28 Data Communication Elements

Indigitalcomputers,dataisstoredinindividualbits.Thesebitscanhavetwodefinedstates-1(on)and0(off).Ontheotherhand,analoglogichasarangeofpossiblestates.Whengraphed,analogsignalsaresinewaves,whiledigitalsignalsaresquare.Sound,sinceitisalwayschanging,isanalog.Therefore,phonelinescarryanalogsignals.Inorderforacomputertosenditsdigitaldataoverthe phone line, this data must be converted into an analog signal. A modem reads the computer’s digital signals and converts them into tones that can be sent over the phone line. The modem on the other end picks up these tones and turns them back into digital signals that are sent to the receiving computer.Modulationistheprocessofconvertingthedigitalwaveformintoan analog signal suitable for phone line transmission; demodula-tionistheinverse,analogtodigital.AModem(asinModulation/Demodulation)carriesouttheseprocesses.The three major components of data communication are the ter-minal, modem, and host PC. At the terminal, analog information (meaning information from the outside world) is translated intodigital format. This digital data is then transmitted to a host PC. A hostPCisaPCsystemwhichisabletorunprogramsfromseveraldifferent users at the same time.TheterminalequipmentisreferredtoasDTE(DataTerminalEquip-ment).TheModemiscalledDCE(DataCommunicationEquipment)andsometimesDataSet.Figure28depictstherelationshipbetween


these data communication terms and everyday equipment.

4.3 Transmission BasicsThe communications medium is composed of a primary channel and asecondarychannel.Asecondarychannelisnotalwayspresentinmodems. A channel has the capacity to transfer data in either direc-tion;eachchannelactuallyhastwosignals,oneforeachdirection.Whenbothdirectionsareactivesimultaneously,thenthechanneliscalledfull-duplex.Whenonlyonedirectionisactiveatatime,thechannel is half-duplex. The channel’s capacity is equal to the number of bits per second it can carry. The secondary channel’s capacity is alwayslessthanthatoftheprimarychannel.Anotherconceptisacarrier.Acarrierisacontinuoussinewavesignal that passes over the medium. This is the actual pipeline that allowsthedatatotravelfromDCEtoDCE.Thepresenceofcarrierdoesnotnecessarilymeanthatthereisdatatransfer.Inordertosend data from DCE to DCE, the data must be modulated.

4.4 Data NetworksHereisabriefintroductiontothevariousoptionsavailableindatanetworks.Circuitscandifferinthefollowingways:• Directionoftransmission• Numberofdevicesthatareconnectedtothenetwork• Methodofcustomerpayment• Methodoftransmission

Direction of TransmissionA simplex channel transmits data in only one direction. A half-duplexchanneltransmitsineitherdirection;however,onlyonedirection can be active at a time. A full-duplex channel can send data in both directions simultaneously.

Number of Connected DevicesAPoint-to-Pointcircuitconnectstwodevices.Forexample,alineconnecting twomodems isPoint-to-Point.APoint-to-Multipointcircuit can connect several different devices.

Method of PaymentInaSwitchedcircuit,acustomerischargedforthesetup,dura-tion, and termination of the call. A normal telephone call uses a switchedcircuit.Adedicated,alsocalledleased,linemaintainsapermanentconnectionbetweentwopoints.Thecustomerpaysa fixed rate for this connection.

Method of TransmissionIn asynchronous transmission, data is coded into a series ofpulseswithastartandstopbit.Astartbitissentbythesendingmodemtosaythatitisgoingtosendacharacter.Itthensendsthecharacterand followswithastopbitwhichstates that the

35SSxDSL-9M

transfer is complete. After transmission of the character, the line cansendthenextcharacterwithstart/stopbitsorcangointoanidlestate(hereitremainsinthemark1position).

Insynchronoustransmission,dataissentviaabitstream,whichsends groups of characters in a single stream. Modems gather groupsofcharactersinabuffer,wheretheyarepreparedtobesentinastream.Inorderforthisstreamtobesent,themodemsmustbeinperfectsynchronizationwitheachother.Theidletimebetweencharactersiseliminated.Thefirstbitofacharacterim-mediatelyfollowsthelastbitofthepreviouscharacter;thereareno start/stop bits.

4.5 Call Control Procedure

A standard call procedure is outlined in Figure 29. This procedure pertains to a full-duplex circuit. Since both carriers can be present simultaneouslyinafull-duplexcircuit, itdoesnotmatterwhichsideturnsonRTSfirst.InFigure29,theWestDTEhappenstobe first. For half-duplex circuits, the side to transmit first must be arranged beforehand.

TheWest DTE sends RTS to theWest DCE. RTS (RequestToSend),tellsthemodemtoactivateitsoutgoingcarrier.RTSresultsintwostepsfortheWestDCE.ItturnsontheEastboundcarrier,asshowninFigure29,andalsosendsCTSbacktotheWestDTE.CTS (ClearToSend)indicatesthatthecarrierhasbeenturnedonandsothe DTE may begin to transmit its data. The East DCE senses that the EastboundcarrierfromtheWestDCEisnowpresent.Consequently,it sends Carrier Detect to the East DTE. Carrier Detect, means that the DCE has sensed an incoming carrier. This alerts the East DTE thatitshouldshortlyreceivedatafromtheWest.

The East DTE also turns on its RTS. This results in the same steps asoutlinedabovefortheWest.TheRTSisreceivedbytheEastDCE.TheEastDCEnowactivatesitsWestboundcarrierandthus,bothcarriersarepresent.ItalsosendsCTSbacktoEastDTE.TheWestDCE,recognizingtheincoming(Westboundcarrier)turnsontheCarrierDetecttotheWestDTE.Atthisstage,bothcarriersareactive, but no modulation or data transfer has taken place.

WhentheWestandEastDTErecognizethattheCTSsignalison,theycanbegintotransmitdataontheTransmitDatawire.WhentheWestDTEplacesdataonitsTxwire,theWestDCEbeginstomodulateitscarrier.ThedataissenttotheEastDTE,whereitisdemodulatedandsentontheReceivedatawire.TheEastDTEreceivesexactlywhatwassentbytheWestDTE.AsimilarproceduretakesplacewhentheEastDTEplacesdataonitsTxwire.TheEastDCEbeginsmodulationandsends theanaloginformationtotheWestDCE.TheWestDCEdemodulatesthis


dataandsendsittotheWestDTEontheRxwire.

WestDTE

EastModem

DCE

EastDTE

AnalogPhone

Line

RS232

Cable

RS232

Cable

WestModem

DCE

RTSOn

CarrierDetect

On

ActivateCarrier

CTSOn

CarrierDetect

On

Mod-ulate

Carrier

Demod-ulate

Carrier

CTSOff

RTSOn

East-boundCarrierPresent

Modul-ation

BothCarriersPresent

RxDataOn

TxDataOn

RxDataOff

Demod-ulate

Carrier

Mod-ulate

Carrier

CarrierDetect

Off

TxDataOn

RxDataOn

TxDataOff

RTSOff

Figure 29 Full-Duplex Call Procedure

WhentheWest(orEast)DTEhassentallitsdata,itturnsoffitsTxwireandtheEastDTEturnsoffitsRxwire.TheWestDTEturnsoffRTS.TheWestDCEturnsoffCTSanddeactivatesitscarrier. The East DCE senses the loss of carrier and turns off CarrierDetect.WhentheEastDTEhasfinishedtransmittingitsdata,thesamestepsarefollowed.

4.6 Physical Layer ProtocolsFigures30through36showdatacominterfacepin-outs.Thepinabbreviations are:CTS: Clear to Send, sent by DCE- indicates that the carrier is

37SSxDSL-9M

turned on and the DTE can start to send its data.DCD: Data Carrier Detect, sent by DCE- says that the DCE has sensed an incoming carrier.DCE: Data Communications Equipment.DTE: Data Terminal Equipment.DSR: Data Set Ready, sent by DCE- indicates that call connection has been established.DTR: Data Terminal Ready, sent by DTE- says that DTE is ready and can accept incoming calls.GND: This pin provides the grounding.LL: This pin initiates a Local Loopback.RD: Receive data.RL: This pin initiates a Remote Loopback.RTS: Request To Send, sent by DTE- tells modem to activate its outgoing carrier.RxCLK: Receive Clock.TxCLK: Transmit Clock.

19 37

1 20

13 25

1 14

DB-37 SS262-B

Connections Between PinsRS-530 DCE

Connections Between PinsRS-530 DTE

DB-37 DB-25Pin Function Pin

2, 30 RxD 3, 164, 3 CTS 5, 136, 5 DSR 6, 228, 7 DCD 8, 1010, 9 RxCLK 17, 912, 11 TxCLK 15, 1214, 13 TxD 2, 1416, 15 RTS 4, 1918, 17 DTR 20, 2320, 19 T CLK 24, 1127 RL 2128 LL 1829 GND 7


2, 30 TxD 2, 144, 3 RTS 4, 196, 5 DTR 20, 238, 7 T CLK 24, 1114, 13 RxD 3, 1616, 15 DSR 6, 22 18, 17 CTS 5, 1320, 19 DCD 8, 1022, 21 TxCLK 15, 1224, 23 RxCLK 17, 925 RL 2126 LL 1829 GND 7

DB-25

Figure 30 RS-530 Pinout


1 20

19 37

20 1

37 19

A

DB-37Male

B

DB-37Male

C

DB-37Female

1 19

20 37

SS255Y

FunctionDB-37Male

DB-37Male

DB-37Female

A B C

Sheild 1 29 1Signal Ground 19 29 19RD (a) from DCE 6 14 6RD (b) 24 13 24SD (a) to DCE 4 2 4SD (b) 22 30 22ST (a) from DCE 5 22 5ST (b) 23 21 23RT (a) from DCE 8 24 8RT (b) 26 23 26TT (a) to DCE 17 8 17TT (b) 35 7 35RS (a) to DCE 7 4 7RS (b) 25 3 25CS (a) from DCE 9 16 9CS (b) 27 17 27RR (a) from DCE 13 20 13RR (b) 31 19 31DM (a) from DCE 11 16 11DM (b) 29 15 29TR (a) to DCE 12 6 12TR (b) 30 5 30LL to DCR 10 28 10RL to DCE 14 27 14

Figure 31 RS-449 Y Cable Pinout

39SSxDSL-9M

19 37

1 20

13 25

1 14

DB-37 SS254-C/T

Connections Between PinsRS-232 DCE

Connections Between PinsRS-232 DTE


2 RxD 314 TxD 217 RTS 44 CTS 56 DSR 616 DTR 208 DCD 89 TxCLK 1512 RxCLK 1727 RL 2128 LL 1820 REFCLK 2429 GND 7


2 TxD 24 RTS 46 DTR 208 T CLK 2414 RxD 317 CTS 516 DSR 620 DCD 822 TxCLK 1524 RxCLK 1725 RL 2126 LL 1829 GND 7

DB-25

Figure 32 RS-232 Pinout

19 37

1 20

9 15

1 10DB-37 SS234-C/T

Connections Between PinsX.21 DCE

Connections Between PinsX.21 DTE


14 Tx In (a) 213 Tx In (b) 92 Rx Out (a) 430 Rx Out (b) 1118 CTRL In (a) 317 CTRL In (b) 104 IND Out (a) 53 IND Out (b) 126 CLK Out (a) 65 CLK Out (b) 1329 GND 8


2 Tx Out (a) 230 Tx Out (b) 914 Rx In (a) 413 Rx In (b) 114 CTRL Out (a) 33 CTRL Out (b) 1018 IND In (a) 517 IND In (b) 1216 CLK In (a) 615 CLK In (b) 13 29 GND 8

DB-25

Figure 33 X.21 Pinout


FunctionDB-37Male

DB-37Male

DB-37Female

A B C

Sheild A 29 ASignal Ground B 29 BTD (a) to DCE P 2 PTD (b) S 30 SRD (a) from DCE R 14 RRD (b) T 13 TSCTE (a) to DCE U 8 USCTE (b) W 7 WSCR (a) from DCE V 20 VSCR (b) X 19 XSCT (a) from DCE Y 18 YSCT (b) AA 17 AARTS to DCE C 4 CCTS from DCE D 22 DDSR from DCE E 16 EDTR to DCE H 6 HLL to DCE L 28 LRL to DCE N 27 NDCD from DCE F 24 F

A

34 PinM-Block Male

B

DB-37Male

C

34 PinM-Block Female

1 19

20 37

BFLRVZ

DDJJNN

DJHTX

BBFFLL

AEKPUY

CCHHMM

CHMSWAAEEKK

AEKPUY

CCHHMM

BFLRVZ

DDJJNN

DJHTX

BBFFLL

CHMSWAAEEKK

SS267Y

Figure 34 V.35 Y Cable Pinout

41SSxDSL-9M

20 1

37 19

DB-37

DB-37 34 PinMale Function Female

29 Shield A29 Signal Ground B14 TD (a) to DCE P13 TD (b) S2 RD (a) from DCE R30 RD (b) T18 SCTE (a) to DCE U17 SCTE (b) W10 SCR (a) from DCE V9 SCR (b) X

DB-37 34 PinMale Function Female

8 SCT (a) from DCE Y7 SCT (b) AA22 RTS to DCE C4 CTS from DCE D6 DCS from DCE E16 DTR to DCE H28 LL to DCE L27 RL to DCE N12 DCD from DCE F

SS267C 34 PinM-BlockFemale

CHMSWAAEEKK

AEKPUY

CCHHMM

DJHTX

BBFFLL

BFLRVZ

DDJJNN

Figure 35 V.35 DCE Pinout


20 1

37 19

DB-37

DB-37 34 PinMale Function Male

29 Shield A29 Signal Ground B4 RTS to DCE C22 CTS to DCE D16 DCS from DCE E24 DCD from DCE F6 DTR to DCE H26 LL to DCE L25 RL to DCE N2 TD (a) to DCE P

DB-37 34 PinMale Function Male

14 RD (a) from DCE R30 TD (b) to DCE S13 RD (b) from DCE T8 SCTE (a) to DCE U20 SCR (a) from DCE V7 SCTE (b) to DCE W19 SCR (b) from DCE X18 SCT (a) from DCE Y17 SCT (b) from DCE AA

SS267T 34 PinM-BlockFemale

BFLRVZ

DDJJNN

DJHTX

BBFFLL

AEKPUY

CCHHMM

CHMSWAAEEKK

Figure 36 V.35 DTE Pinout

43SSxDSL-9M

4.7 Standard Test PatternsThis section defines common test patterns used by the test set. Thelongpatternsarewritteninhexadecimalform,alsoknownas“HEX”.ApatterniswritteninHEX,ifitiswrittenwithpairsofnumbersseparatedbycommas.HEXisa16-digitnumbersystemconsisting of the digits 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, A, B, C, D, E, and F.TheHEXpattern15FAtranslatestothebinarypattern0001010111111010,wheretheleft-mostbitistransmittedfirst.QRSS:IndustrystandardQuasiRandomSequenceSignalisformedfrom a 20-stage shift register and is zero-constrained for a maximum of14consecutivezeros.Whentransmittedinaframedsignal,upto15consecutivezeroswilloccur,inaccordancewithAMIminimumdensityrequirements.Itisderivedfromthe2e20pattern.55DLY:TheDaily55Octetpatternisaspecialstresspatternthatfollowsindustrystandardsforpulsedensityandmaximumcon-secutivezerosinbothAMIandB8ZScodedcircuits.Framingbitsoccur at octet boundaries. This pattern has replaced the original 55octetpattern(refertoT1-6).Thepatternis:80,80,80,80,80,80, 01, 80, 80, 80, 80, 80, 80, C0, 80, 80, 80, 80, E0, 80, 80, 80, 80, AA, AA, AA, AA, 55, 55, 55, 55, 80, 80, 80, 80, 80, 80, FF, FF, FF, FF, FF, FF, 01, 80, 01, 80, 01, 80, 01, 80, 01, 80, 01, 80.55OCT:Original55-octetpattern.ItisusedforstresstestingT1circuitsandnetworkelements.IftransmittedinaframedsignalwithAMIcoding,itwillviolatethe15-zeroconstraint.Itdoesnotviolatethezerosconstraintinanunframedsignal.Ifframed,theframingbit is inserted at octet boundaries. The pattern is: 80, 80, 80, 80, 80 80, 00, 80, 80, 80, 80, 80, 80, C0, 80, 80, 80, 80, E0, 80, 80, 80, 80, AA, AA, AA, AA, 55, 55, 55, 55, 80, 80, 80, 80, 80, 80, FF, FF, FF, FF, FF, FF, 01, 80, 01, 80, 01, 80, 01, 80, 01, 80, 01, 80.2e15:Industrystandard2e15-1pseudorandombitsequence.Itisformed from a 15-stage shift register and is not zero-constrained. Itcontainsupto14zerosinarowanddoesnotviolatestandardsforconsecutivezerosinAMI-codedtransmission.2e20:Industrystandard2e20-1pseudorandombitsequence.Itisformed from a 20-stage shift register and is not zero-constrained. It containsup to19zeros ina rowandviolatesstandards forconsecutivezerosinAMI-codedtransmission.2e23: Industry standard 2e23-1 pseudo random bit sequence formed from a 23-stage shift register and is not zero-constrained. It containsup to22zeros ina rowandviolatesstandards forconsecutivezerosinAMI-codedtransmission.2047:Industrystandard2047bitcodeusedforDDSsystems.1-8:UsedforstresstestingAMIandB8ZSlines.Itisalsocalled1:7.Thepatternisframealigned(fistheframingbit)asshownin its binary form: ‘f 0100 0000’.


FOX:Usedindatacommunicationsapplications.TheASCIItransla-tionofthepatternisthe‘Quickbrownfox’sentence.ThepatternisframealignedtoensureproperASCIItranslationofthebits.Sendingthepatternwithsignalsisrecommended;otherwise,ASCIItransla-tion is not possible. The pattern is : 2A, 12, A2, 04, 8A, AA, 92, C2, D2, 04, 42, 4A, F2, EA, 72, 04, 62, F2, 1A, 04, 52, AA, B2, 0A, CA, 04, F2, 6A, A2, 4A, 04, 2A, 12, A2, 04, 32, 82, 5A, 9A, 04, 22, F2, E2, 04, 8C, 4C, CC, 2C, AC, 6C, EC, 1C, 9C, 0C, B0, 50.63:Industrystandard63-bitcodeusedforDDSsystems.127:Industrystandard127-bitcodeusedforDDSsystems.511:Industrystandard511-bitcodeusedforDDSsystems.1010:Industrystandardalternatingonesandzerospattern.Itisframealignedwith‘f’showingthelocationoftheframingbit.1-16:Industrystandard1in16patternisusedforover-stressingAMIlines.Itviolatesindustrystandardsforpulsedensity;there-fore,anAMIcircuitthatfailsthistestcouldstillbeagoodcircuit.Thepatternisframealigned(“f”istheframingbit)asshowninits binary form: ‘f 0100 0000 0000 0000’.3-24:Industrystandard3in24patternisusedforstresstestingAMIlines.Itisframealigned(fistheframingbit)andthebinaryform is: ‘f 0100 0100 0000 0000 0000 0100’.ALL 0:Industrystandardallzerospattern.Itisoftenusedtomakesure that clear channel lines are properly provisioned for B8ZS duringcircuit turn-up. Ifaportionof thecircuit isAMI,patternsynchand/orsignalwillbelost.ALL1:Industrystandardallonespatternisusedforstresstest-ingAMIandB8ZS lines. Ifsending thepatternunframed, it isinterpretedasanAIS(AlarmIndicationSignal).IDLE:Usedtoindicatethatadeviceonthenetworkisnottrans-mitting any data.

4.8 DDS Test PatternsTheDDStestpatternsweredevelopedspecificallyforDDSsys-tems. DDS-1, DDS-2, and DDS-6 should not be used as 1.544 MbpsT1testpatternsonAMIcodedlines,becausetheyhaveanexcessof150consecutivezeros.ThiswillcausetheT1linetorecord a loss of signal. These patterns are used for DDS, fractional Nx56 T1 applications, and special laboratory applications.DDS3: 01001100DDS4: 00000010DDS6: FE, FE, FE, FE, FE, FE, FE, FF

45SSxDSL-9M

5 General Information

5.1 Testing and Calibration Statement

SunriseTelecomcertifies that thisproductwasmanufactured,tested, and verified according to the applicable Sunrise Telecom Incorporatedmanufacturingandtestprocedure(s).Theseformalprocedures are designed to assure that the product meets its required specifications.

This product has no user-adjustable settings. During normal usage, periodiccalibrationisnotarequirement.However,iftheproductfailsduringtheself-verificationtest,duringpowerup,theproductcan be returned to the manufacturer for evaluation and repair.

5.2 Express Limited Warranty

This SunriseTelecom product is warranted against defects inmaterialsandworkmanshipduringitswarrantyperiod.Thewar-rantyperiodforthisproductiscontainedinthewarrantypageonhttp://www.sunrisetelecom.com.

Sunrise Telecom agrees to repair or replace any assembly or compo nent found to be defective under normal use during this period.Theobligationunderthiswarrantyislimitedsolelytore-pairingorreplacingtheproductthatprovestobedefectivewithinthescopeofthewarrantywhenreturnedtothefactory.Thiswar-ranty does not apply under certain conditions, as set forth on the warrantypageonhttp://www.sunrisetelecom.com.Pleaserefertothewebsiteforspecificdetails.

THISISALIMITEDWARRANTYANDTHEONLYWARRANTYMADEBYSUNRISETELECOM.SUNRISETELECOMMAKESNOOTHERWARRANTY,REPRSENTATIONORCONDITION,EXPRESSOR IMPLIED,ANDEXPRESSLYDISCLAIMSTHEIMPLIEDWARRANTIES OF MERCHANTABILITY, FITNESSFORAPARTICULARPURPOSEANDNON-INFRINGEMENTOFTHIRDPARTYRIGHTS.

Offices

SunriseTelecomofficesarelocatedaroundtheworld.

• SUNRISE TELECOM INCORPORATED302 Enzo Drive San Jose, CA 95138 U.S.A. Tel: 1-800-701-5208 Fax: 1-408-363-8313Internet:http://www.sunrisetelecom.comE-mail: [email protected]


• SUNRISETELECOMATLANTA3075NorthwoodsCircle,Norcross,GA30071,USATel: 770-446-6086, Fax: [email protected]

• SUNRISETELECOMCHINARoom1503,Tower3,No.1,XizhimenwaiStreetXichengDistrict,Beijing,100044,CHINATel: +86-10-5830-2220, Fax: [email protected]

• SUNRISETELECOMFRANCESASZACourtaboeuf2-ImmeubleleCeylan6 Allée de Londres 91140 Villejust, FRANCETel:+33(0)169938990,Fax:+33(0)[email protected]

• SUNRISETELECOMGERMANYGrabenstrasse1,72116MössingenGERMANYTel:+4974733782400Fax:+49(0)[email protected]

• SUNRISETELECOMTAIWAN21,WuChuan3rdRoad,Wu-KuHsiangTaipeiCounty,248,Taiwan,R.O.C.Tel: +886-2-5578-0788, Fax: +886-2-2298-2575

47SSxDSL-9M

Index

AApplications

FaultLocationwithRemote&LocalLoopbacks;31Point-to-Point Datacom Testing; 29

CCalibration Statement; 45Connector Panel Ports

DATACOM;5DDS4W;5

DDatacomInterfaceScreen

CTS; 15DATA; 15DCD; 15DSR; 15DTR; 14LL; 15RL; 15RTS; 14RxCLK; 15TxCLK; 15

DatacomInterfaceScreen-X.21;15Datacom Send Test Pattern Screen; 10Datacom Technology

Call Control Procedure; 35Communication Components; 33CTS; 37DataNetworks

Direction of Transmission; 34Method of Payment; 34Method of Transmission; 35Number of Connected Devices; 34

DCD; 37DCE; 37DTE; 37DTR; 37GND;37LL; 37Physical Layer Protocols; 37RL; 37RS-232 Pinout; 39RS-449YCablePinout;38


RS-530 Pinout; 37RTS; 37RxCLK; 37Transmission Basics; 34TxCLK; 37V.35 DCE Pinout; 41V.35 DTE Pinout; 42V.35YCablePinout;40X.21 Pinout; 39

Datacom Test Configuration ScreenINTERFACE

V.35, RS449, X.21, RS530, RS232A, or RS232S; 8MODE

DCE,DTE,orMON;8RCLKPOLAR

NORMALorINVERT;9TCLKPOLAR

NORMALorINVERT;9TEST RATE

See Table 2; 9TxDATA CLK

INTERNorRECEIVE;9DDS-4WMeasurementResultsScreens

DDS Results ScreenBPVS,FBES,OOFS,LOSS,LOFS,EXZS,LPP,VPP,andFREQ;22

DDS Summary ScreenBIT,BER,ES,%ES,SES,%SES,UAS,%UAS,LPP,VPP,andFREQ;21

Logical Results ScreenBIT,BER,ES,%ES,SES,%SES,UAS,%UAS,DGRM,%DGRM,SYLS,%SYLS,AS,%AS,EFS,and%EFS;23

DDS4WPinout;5DDS Test Configuration Screen

MODEDDS-4W;17

RATE; 18Rx LEVEL

TERM; 17TxCLOCK

INTERNorRECEIVE;17Tx PATTERN; 18

DDS Test PatternsDDS3, DDS4, and DDS6; 44

DDSViewReceiveDataScreen;24

49SSxDSL-9M

FFigures

01 Connector Panel; 502 LED Panel; 603 Menu Tree; 704 Datacom Test Configuration Screen; 805 RS232A Datacom Configuration Screen; 1006 Datacom Send Test Pattern Screen; 1007 Datacom Summary Screen; 1108 Datacom Bit Error Screen; 1209 Datacom Block Error Screen; 1310 Measurement Configuration Screen; 1311DatacomInterfaceScreen-DTE;1412DatacomInterface-X.21DTE;1513DCOMViewReceiveDataScreen;1614 Propagation Delay Screen; 1615 DDS Test Configuration Screen; 1716 DDS Primary Channel Test Pattern Screen; 1817 Successful Loopback Screen; 1918 Loopback Response Screen; 2019 DDS Summary Screen; 2120 DDS Results Screen; 2221 Logical Results Screen; 2322DDS-4WViewReceiveDataScreen;2423View/Store/PrintScreen;2524 Filename Character Screen; 2725 Profile List Screen; 2826ModemTestingwithDatacom;2927 Local and Remote Loopback; 3128 Data Communication Elements; 3329 Full-Duplex Call Procedure; 3630 RS-530 Pinout; 3731RS-449YCablePinout;3832 RS-232 Pinout; 3933 X.21 Pinout; 3934V.35YCablePinout;4035 V.35 DCE Pinout; 4136 V.35 DTE Pinout; 42

LLEDs

MODULE,SIGNAL,ERRORS,PATSYNC,andBITERR;6Loopback Testing; 19


MMeasurement Configuration Screen

MEASDURATIONCONTINUorTIMED;13

PRINTRESULTTIMED,LAST,orNONE;14

STARTMANUALorPROGRAM;14

Measurement Results ScreensBit Error Screen

BIT,BER,ES,%ES,SES,%SES,EFS,%EFS,AS,%AS,UAS,%UAS,andSLIP;12

Block Error Measurements ScreenBLOCKSIZE,#OFBLOCK,BLOCKERROR,andBLOCKERR RATE; 13

Summary ScreenRxDL,RxDLS,PATL,PATLS,BITandBER;11

Menu Tree; 7

PProfile List Screen; 28Propagation Delay Screen

OFFSET;16ROUNDTRIPDELAY;16ROUNDTRIPTIME;16

RReceive Loopback Commands; 20RS232A Datacom Configuration Screen

BIT/CHAR;10PARITY;10STOPBITS;10

SStandard Test Patterns

QRSS,55DLY,55OCT,2e15,2e20,2e23,2047,FOX,63,127,511,1010,1-16,3-24,ALL0,ALL1,andIDLE;43

TTables

01DDS4WPinout;502 Test Rates; 9

51SSxDSL-9M

VView/PrintResults

Deleting a Stored Test; 26Locking and Unlocking a Stored Test; 26Printing a Stored Test; 26Renaming a Stored Test; 27Saving a Test; 26ViewingaStoredTest;26

ViewReceiveDataScreen;16

WWarnings;2Warranty;45

Documents

MAN-12150-US001_MTT_41_F00_PRINT