Manuals / ZyXEL Communications / Computer Equipment / Network Router

ZyXEL Communications U-336R/RE manual Link Status Report ATI2, Diagnostics & Troubleshooting

Models: U-336R/RE

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FRN (Fast Rate Negotiation) Granted (FG)

The count of the granting of the remote modem's change rate (FRN) requests. Each request is an indicator of a changed receiving condition.

FRN Request (FR)

The count of the local modem's requests to change the rate.

Block Retransmitted (BR)

The count of the blocks retransmitted (bad reception on the remote modem).

FCS (Frame Check Sum) Errors (FE)

The count of the FCS errors received (block errors) (bad reception on the local modem).

Link Status Report (ATI2)

During a connection, the modem will record information about link operations. You can use the AT command ATI2 to see the summary, as show in the sample below:

ZyXEL U-MODEM LINK STATUS REPORT

Chars Sent	2420
Chars Received	2420
Octets Sent	950
Octets Received	950
Blocks Sent	13
Blocks Received	13
Blocks Resent	0
Max Outstanding	8
Max Block Size	256

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ZyXEL Communications U-336R/RE manual Link Status Report ATI2, Diagnostics & Troubleshooting

Contents

U-336R/RE User’s Guide ACCESSING INTERNET & INTRANETZyXEL Version MarZyXEL Limited Warranty Acknowledgments FCC Part 15 InformationCopyright 1997 by ZyXEL Information for Canadian Users Page Contacting ZyXEL ∙ E-mailZyXEL Communications Corporation 1 Introduction Contents2 Installation 3 Basic Modem Operation4 Synchronous Mode Operation 5 Leased Line Operation6 Special Functions 7 Fax Operation9 Status Registers & Result Codes 8 AT Command Set Summaries10 Diagnostics & Troubleshooting 11 Upgrading Your ModemTerminal Blocks PC Serial Port Pinouts Macintosh Serial Port Pinouts 12 Terminal Pinouts13 Index 1 Introduction Modem FeaturesStandard Features IntroductionIntelligent Features 2 IntroductionIntroduction Technical SpecificationsFax Compatibility Required Equipment Unpacking Your ModemEnclosed Equipment 4 IntroductionBecoming a Registered Owner Introduction6 Introduction U-336R/RE Modem Card 2 InstallationInstallation Blinking 8 InstallationName Required Steps for U-336R/RE Installation InstallationConnect to phone lines Installing the modem card10 Installation ∙ U-336R Section 2 terminals 3 & 4 For dial-up lineConnect to Computers Hooking Up PowerFax/Modem Communication Software Installation ∙ U-336R Section 3 terminals 5 ,6 ,7 & 8 For leased line connectionValue 12 InstallationSetting 10 for troubleshooting suggestions Installation14 Installation 3 Basic Modem Operation Understanding AT CommandsUsing the Windows 95 Hyper Terminal Program Basic Modem Operation16 Basic Modem Operation ATEnterBasic Modem Operation Dialing using the ATD CommandDialing and Answering Techniques 18 Basic Modem Operation Making Your First ConnectionAuto-Answer and Hook Controls Basic Modem Operation Quick Tips when issuing AT CommandsATDT17146930762enter Omit the ‘1714’ if you are in this area code Command 20 Basic Modem OperationCommand AT Command Set/TypeModem Result Codes Basic Modem Operation22 Basic Modem Operation Viewing S Register ValuesChanging S Register Values Dialing Stored Phone Numbers Non-Volatile MemoryStoring Phone Numbers Basic Modem Operation24 Basic Modem Operation Saving Settings and User ProfilesHelpful Hints for PC Computers Basic Modem Operation Default Modem Settings for PC’sZyXEL Serial/Parallel I/O Card Macintosh Serial Port Special AT Command Settings for MacintoshHelpful Hints for Macintosh Computers Mac Software TipsSerial Cable Basic Modem Settings for UNIXHelpful Hints for UNIX-Based Computers Basic Modem OperationUnix Software Tips 28 Basic Modem OperationSynchronous Mode Operation 4 Synchronous Mode OperationV.25bis Command Set 30 Synchronous Mode Operation Clock OptionsRTS Options Synchronous Mode Operation32 Synchronous Mode Operation Command State OptionsDialing from Synchronous Mode Manual Answer Answering from Synchronous ModeAuto-Answer Synchronous Mode Operation34 Synchronous Mode Operation 5 Leased Line Operation Connecting to a Leased LineLine Type Setting Leased Line OperationManual Connect Power Level SettingLeased Line Handshaking Auto HandshakeLeased Line Operation Leased-Line Dial BackupDial Backup 38 Leased Line Operation Terminating a Leased Line ConnectionAborting from Leased-Line Operation Levels of Security 6 Special FunctionsSecurity Functions Special FunctionsUser Passwords 40 Special FunctionsSpecial Functions CommandFunction AT*Rab Remote Configuration42 Special Functions AT*WabCaller Number Delivery Caller ID Special FunctionsRING 44 Special FunctionsRING TIME MM-DD hhmm CALLER NUMBER CALLERID or CALLER NAMECALLERNM RING TIME 04-28 CALLER NUMBER 7135551414 or CALLER NAMEHere is an example Special FunctionsDistinctive Ring 46 Special FunctionsRing Sequence Extended Distinctive Ring EDRType Special Functions48 Special Functions Once enabled with the proper settings, EDR canSetting Up EDR Special FunctionsEDR Application Example 50 Special FunctionsSave the settings in a profile and reset the modem with AT&WZ Special Functions52 Special Functions Fax Operation 7 Fax OperationModem as Fax Machine ITU-T T.30 Fax Protocol Fax Command setsDefining the Fax Command Sets 54 Fax OperationClass 1 Command Set Fax Operation56 Fax Operation Class 2 Command Set+FTH and +FRH support value 3 V.21 ch. 2 / 300 bps only Command Syntax value+FCIG=string Command58 Fax Operation +FDCC=vr,br,wdln,df,ec,bf,st Commandn,df,ec,bf,st +FDCS=vr,br,wd+FDIS=vr,br,wd,l +FDT=df,vr,wdCommand +FLID=string60 Fax Operation ValueValue CommandClass 2 Command Responses Description62 Fax Operation Class 2 Flow Controld,ln,df,ec,bf,st Class 2.0 Command Set+FCC=vr,br,w Supported CommandsValue 64 Fax OperationCommand Descriptiontpr,idr,nsr +FIS=vr,br,wd+FLI=string ln,df,ec,bf,st+FRQ=pgl,cbl +FNS=string+FPI=string 66 Fax OperationValue CommandClass 2.0 Command Responses DescriptionValue 68 Fax OperationResponse Function and DescriptionFunction and Description ResponseValue Fax OperationExtended Fax AT Command Set 70 Fax OperationParameter Setting CommandCommand FunctionStatus Report Result Codes #Pstring72 Fax Operation CONNECT FAX/SnnnnVnTnRnLnCnPstring SnnnnPstring FieldFlow Control 74 Fax OperationString Fax Reception from a BBSError Level Fax Operation76 Fax Operation 1 ZyXELAT Command Set Summaries 8 AT Command Set SummariesBasic AT Command Set Options 78 AT Command Set SummariesCommand Function & DescriptionOptions CommandAT Command Set Summaries Function & Description80 AT Command Set Summaries Description of ATI2 OutputAT Command Set Summaries Max OutstandingOutput Value Description 82 AT Command Set SummariesOutput Parameter AT Command Set Summaries Extended AT& Command SetCommand Output ParameterOptions 84 AT Command Set SummariesCommand Function & DescriptionOptions CommandAT Command Set Summaries Function & DescriptionOptions 86 AT Command Set SummariesCommand Function & DescriptionOptions CommandAT Command Set Summaries Function & DescriptionOptions 88 AT Command Set SummariesCommand Function & DescriptionCommand Extended AT* Command SetCommand AT Command Set SummariesOptions 90 AT Command Set SummariesCommand Function & DescriptionOptions CommandAT Command Set Summaries Function & DescriptionBasic S-Registers ATSn=x 9 Status Registers & Result CodesS-Register Descriptions 92 Status Registers & Result CodesExtended S-Registers ATSn=x Status Registers & Result CodesFunction and description 94 Status Registers & Result CodesCommand Status Registers & Result Codes CommandFunction and description Function and description 96 Status Registers & Result CodesCommand Status Registers & Result Codes CommandFunction and description Function and description 98 Status Registers & Result CodesCommand Status Registers & Result Codes CommandFunction and description Function and description 100 Status Registers & Result CodesCommand Status Registers & Result Codes CommandFunction and description Function and description 102 Status Registers & Result CodesCommand Status Registers & Result Codes CommandFunction and description Function and description 104 Status Registers & Result CodesCommand Status Registers & Result Codes CommandFunction and description Function and description 106 Status Registers & Result CodesCommand Status Registers & Result Codes CommandFunction and description Function and description 108 Status Registers & Result CodesCommand Status Registers & Result Codes CommandFunction and description Function and description 110 Status Registers & Result CodesCommand Status Registers & Result Codes Result Code OptionsATXn Result Code Option Table 112 Status Registers & Result Codes Result Code Chart Symbol ReferenceExample CONNECT 38400/V.32bis 14400/V.42bis Connect Strings for Error Corrected ConnectionsResult Code Field Descriptions Status Registers & Result CodesVerbose 114 Status Registers & Result CodesNumerical NumericalStatus Registers & Result Codes 116 Diagnostics & Troubleshooting 10 Diagnostics & TroubleshootingDiagnostics Power-On Self Test Diagnostics & Troubleshooting118 Diagnostics & Troubleshooting Loopback TestsRetransmission Indicator Indicator LightsDiagnostics & Troubleshooting Remote Digital Loopback Test AT&T6120 Diagnostics & Troubleshooting Line Condition Status DisplayPhase Jitter PJ Diagnostics & TroubleshootingReceived Signal Power Level RX Round Trip Echo Delay ED122 Diagnostics & Troubleshooting Link Status Report ATI2Diagnostics & Troubleshooting Characters sent from the DTE to the modem for transmission124 Diagnostics & Troubleshooting Characters received by the modem from the line and sent to the DTEDiagnostics & Troubleshooting ∙ Local Hang-up ∙ Remote Hang-up ∙ Carrier Lost ∙ On Line126 Diagnostics & Troubleshooting Trouble ShootingAT Command Set Problems Your modem fails to execute AT commands Diagnostics & Troubleshooting128 Diagnostics & Troubleshooting Command Echo ProblemsAnswer Problems Dialing Problems Diagnostics & Troubleshooting130 Diagnostics & Troubleshooting Data Transfer ProblemsConnect Problems Upgrading Your Modem 11 Upgrading Your ModemUpgrading by Flash EPROM Kernel Recovery Mode 132 Upgrading Your ModemTerminal Pinouts 12 Terminal PinoutsTerminal Blocks PC Serial Port Pinouts 134 Terminal PinoutsMacintosh Serial Port Pinouts Terminal Pinouts136 Terminal Pinouts 13 Index Index138 Index