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ZyXEL Communications U-336R/RE manual Power-On Self Test, Diagnostics & Troubleshooting

Models: U-336R/RE

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ONOTE: * ITEMS APPLICABLE EXCLUSIVELY TO U-336RINSTALLED IN RS-1612RACK SYSTEM.

Power-On Self Test

At each power-up or upon a reset command from the panel, the modem will test the ROM code checksum, system RAM memory, DSP code checksum, DSP RAM memory, EEPROM, digital circuits, and the analog circuit calibrations.

If successful, the TST LED will be on during, and off after the test. If the test fails the SQ LED will flash. The number of flashes will indicate the error as specified by the table below:

0	SYSTEM TESTING	Self-test indicator. If no error occurs,
	....	this message will last until the end of
		the test.

1	ROM TEST FIAL....	ROM code checksum error.

2	RAM TEST FAIL....	System RAM fails.

3	LOADING	The factory default settings will be
	DEFAULTS	downloaded to the RAM and the self-
		test will be re-initiated. This is not a
		real error.

4	DSP RAM FIAL...	The testing of DSP RAM fails,
		condition A.

5	DSP RAM FIAL...	The testing of DSP RAM fails,
		condition A.

6	VO CALIBRATION	Analog circuit calibration error.
	FAIL...

7	VR CALIBRATION	Analog circuit calibration error.
	FAIL...

Diagnostics & Troubleshooting 117

Image 129

ZyXEL Communications U-336R/RE manual Power-On Self Test, Diagnostics & Troubleshooting

Contents

ZyXEL ACCESSING INTERNET & INTRANETU-336R/RE User’s Guide Version MarZyXEL Limited Warranty FCC Part 15 Information Copyright 1997 by ZyXELAcknowledgments Information for Canadian Users Page ∙ E-mail Contacting ZyXELZyXEL Communications Corporation 2 Installation Contents1 Introduction 3 Basic Modem Operation5 Leased Line Operation 4 Synchronous Mode Operation7 Fax Operation 6 Special Functions10 Diagnostics & Troubleshooting 8 AT Command Set Summaries9 Status Registers & Result Codes 11 Upgrading Your Modem12 Terminal Pinouts 13 IndexTerminal Blocks PC Serial Port Pinouts Macintosh Serial Port Pinouts Standard Features Modem Features1 Introduction Introduction2 Introduction Intelligent FeaturesTechnical Specifications Fax CompatibilityIntroduction Enclosed Equipment Unpacking Your ModemRequired Equipment 4 IntroductionIntroduction Becoming a Registered Owner6 Introduction 2 Installation InstallationU-336R/RE Modem Card 8 Installation NameBlinking Installation Required Steps for U-336R/RE Installation10 Installation Installing the modem cardConnect to phone lines ∙ U-336R Section 2 terminals 3 & 4 For dial-up lineFax/Modem Communication Software Installation Hooking Up PowerConnect to Computers ∙ U-336R Section 3 terminals 5 ,6 ,7 & 8 For leased line connection12 Installation SettingValue Installation 10 for troubleshooting suggestions14 Installation Using the Windows 95 Hyper Terminal Program Understanding AT Commands3 Basic Modem Operation Basic Modem OperationATEnter 16 Basic Modem OperationDialing using the ATD Command Dialing and Answering TechniquesBasic Modem Operation Making Your First Connection Auto-Answer and Hook Controls18 Basic Modem Operation Quick Tips when issuing AT Commands ATDT17146930762enter Omit the ‘1714’ if you are in this area codeBasic Modem Operation Command 20 Basic Modem OperationCommand AT Command Set/TypeBasic Modem Operation Modem Result CodesViewing S Register Values Changing S Register Values22 Basic Modem Operation Storing Phone Numbers Non-Volatile MemoryDialing Stored Phone Numbers Basic Modem OperationSaving Settings and User Profiles Helpful Hints for PC Computers24 Basic Modem Operation Default Modem Settings for PC’s ZyXEL Serial/Parallel I/O CardBasic Modem Operation Helpful Hints for Macintosh Computers Special AT Command Settings for MacintoshMacintosh Serial Port Mac Software TipsHelpful Hints for UNIX-Based Computers Basic Modem Settings for UNIXSerial Cable Basic Modem Operation28 Basic Modem Operation Unix Software TipsV.25bis Command Set 4 Synchronous Mode OperationSynchronous Mode Operation 30 Synchronous Mode Operation Clock OptionsSynchronous Mode Operation RTS OptionsCommand State Options Dialing from Synchronous Mode32 Synchronous Mode Operation Auto-Answer Answering from Synchronous ModeManual Answer Synchronous Mode Operation34 Synchronous Mode Operation Line Type Setting Connecting to a Leased Line5 Leased Line Operation Leased Line OperationLeased Line Handshaking Power Level SettingManual Connect Auto HandshakeLeased-Line Dial Backup Dial BackupLeased Line Operation Terminating a Leased Line Connection Aborting from Leased-Line Operation38 Leased Line Operation Security Functions 6 Special FunctionsLevels of Security Special Functions40 Special Functions User PasswordsCommand FunctionSpecial Functions 42 Special Functions Remote ConfigurationAT*Rab AT*WabSpecial Functions Caller Number Delivery Caller IDRING TIME MM-DD hhmm CALLER NUMBER CALLERID or CALLER NAMECALLERNM 44 Special FunctionsRING RING TIME 04-28 CALLER NUMBER 7135551414 or CALLER NAMESpecial Functions Here is an example46 Special Functions Distinctive RingType Extended Distinctive Ring EDRRing Sequence Special FunctionsOnce enabled with the proper settings, EDR can 48 Special FunctionsSpecial Functions Setting Up EDR50 Special Functions EDR Application ExampleSpecial Functions Save the settings in a profile and reset the modem with AT&WZ52 Special Functions 7 Fax Operation Modem as Fax MachineFax Operation Defining the Fax Command Sets Fax Command setsITU-T T.30 Fax Protocol 54 Fax OperationFax Operation Class 1 Command SetClass 2 Command Set +FTH and +FRH support value 3 V.21 ch. 2 / 300 bps only56 Fax Operation +FCIG=string valueCommand Syntax Commandln,df,ec,bf,st +FDCC=vr,br,wd58 Fax Operation Command+FDIS=vr,br,wd,l +FDCS=vr,br,wdn,df,ec,bf,st +FDT=df,vr,wd60 Fax Operation +FLID=stringCommand ValueClass 2 Command Responses CommandValue DescriptionClass 2 Flow Control 62 Fax Operation+FCC=vr,br,w Class 2.0 Command Setd,ln,df,ec,bf,st Supported CommandsCommand 64 Fax OperationValue Description+FLI=string +FIS=vr,br,wdtpr,idr,nsr ln,df,ec,bf,st+FPI=string +FNS=string+FRQ=pgl,cbl 66 Fax OperationClass 2.0 Command Responses CommandValue DescriptionResponse 68 Fax OperationValue Function and DescriptionValue ResponseFunction and Description Fax Operation70 Fax Operation Extended Fax AT Command SetCommand CommandParameter Setting Function#Pstring 72 Fax OperationStatus Report Result Codes Pstring SnnnnCONNECT FAX/SnnnnVnTnRnLnCnPstring Field74 Fax Operation Flow ControlError Level Fax Reception from a BBSString Fax Operation1 ZyXEL 76 Fax Operation8 AT Command Set Summaries Basic AT Command SetAT Command Set Summaries Command 78 AT Command Set SummariesOptions Function & DescriptionAT Command Set Summaries CommandOptions Function & DescriptionDescription of ATI2 Output 80 AT Command Set SummariesMax Outstanding AT Command Set Summaries82 AT Command Set Summaries Output ParameterOutput Value Description Command Extended AT& Command SetAT Command Set Summaries Output ParameterCommand 84 AT Command Set SummariesOptions Function & DescriptionAT Command Set Summaries CommandOptions Function & DescriptionCommand 86 AT Command Set SummariesOptions Function & DescriptionAT Command Set Summaries CommandOptions Function & DescriptionCommand 88 AT Command Set SummariesOptions Function & DescriptionCommand Extended AT* Command SetCommand AT Command Set SummariesCommand 90 AT Command Set SummariesOptions Function & DescriptionAT Command Set Summaries CommandOptions Function & DescriptionS-Register Descriptions 9 Status Registers & Result CodesBasic S-Registers ATSn=x 92 Status Registers & Result CodesStatus Registers & Result Codes Extended S-Registers ATSn=x94 Status Registers & Result Codes CommandFunction and description Command Function and descriptionStatus Registers & Result Codes 96 Status Registers & Result Codes CommandFunction and description Command Function and descriptionStatus Registers & Result Codes 98 Status Registers & Result Codes CommandFunction and description Command Function and descriptionStatus Registers & Result Codes 100 Status Registers & Result Codes CommandFunction and description Command Function and descriptionStatus Registers & Result Codes 102 Status Registers & Result Codes CommandFunction and description Command Function and descriptionStatus Registers & Result Codes 104 Status Registers & Result Codes CommandFunction and description Command Function and descriptionStatus Registers & Result Codes 106 Status Registers & Result Codes CommandFunction and description Command Function and descriptionStatus Registers & Result Codes 108 Status Registers & Result Codes CommandFunction and description Command Function and descriptionStatus Registers & Result Codes 110 Status Registers & Result Codes CommandFunction and description Result Code Options ATXn Result Code Option TableStatus Registers & Result Codes Result Code Chart Symbol Reference 112 Status Registers & Result CodesResult Code Field Descriptions Connect Strings for Error Corrected ConnectionsExample CONNECT 38400/V.32bis 14400/V.42bis Status Registers & Result CodesNumerical 114 Status Registers & Result CodesVerbose NumericalStatus Registers & Result Codes 10 Diagnostics & Troubleshooting Diagnostics116 Diagnostics & Troubleshooting Diagnostics & Troubleshooting Power-On Self TestLoopback Tests 118 Diagnostics & TroubleshootingDiagnostics & Troubleshooting Indicator LightsRetransmission Indicator Remote Digital Loopback Test AT&T6Line Condition Status Display 120 Diagnostics & TroubleshootingReceived Signal Power Level RX Diagnostics & TroubleshootingPhase Jitter PJ Frequency Offset FOLink Status Report ATI2 122 Diagnostics & TroubleshootingCharacters sent from the DTE to the modem for transmission Diagnostics & TroubleshootingCharacters received by the modem from the line and sent to the DTE 124 Diagnostics & Troubleshooting∙ Local Hang-up ∙ Remote Hang-up ∙ Carrier Lost ∙ On Line Diagnostics & TroubleshootingTrouble Shooting AT Command Set Problems126 Diagnostics & Troubleshooting Diagnostics & Troubleshooting Your modem fails to execute AT commandsCommand Echo Problems Answer Problems128 Diagnostics & Troubleshooting Diagnostics & Troubleshooting Dialing ProblemsData Transfer Problems Connect Problems130 Diagnostics & Troubleshooting 11 Upgrading Your Modem Upgrading by Flash EPROMUpgrading Your Modem 132 Upgrading Your Modem Kernel Recovery Mode12 Terminal Pinouts Terminal BlocksTerminal Pinouts 134 Terminal Pinouts PC Serial Port PinoutsTerminal Pinouts Macintosh Serial Port Pinouts136 Terminal Pinouts Index 13 Index138 Index