Power-On Self Test | ZyXEL Communications U-336R/RE guide

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

Contents

ZyXEL ZyXEL Limited Warranty Copyright 1997 by ZyXEL FCC Part 15 InformationAcknowledgments Iii Information for Canadian Users Page ∙ E-mail Contacting ZyXEL Vii Contents Leased Line Operation Synchronous Mode Operation Fax Operation Special Functions Diagnostics & Troubleshooting AT Command Set SummariesStatus Registers & Result Codes Upgrading Your Modem Terminal Pinouts IndexXii Modem Features Standard FeaturesIntroduction Intelligent Features Fax Compatibility Technical Specifications Unpacking Your Modem Enclosed EquipmentRequired Equipment Becoming a Registered Owner Introduction Installation Installation336R/RE Modem Card Name Blinking RXD TXDDTR DSR Required Steps for U-336R/RE Installation Connect to phone lines Installing the modem card Hooking Up Power Fax/Modem Communication Software InstallationConnect to Computers AT&F Setting Value For troubleshooting suggestions Installation Using the Windows 95 Hyper Terminal Program Understanding AT CommandsBasic Modem Operation Basic Modem Operation ATEnter Dialing and Answering Techniques Dialing using the ATD Command Auto-Answer and Hook Controls Making Your First ConnectionATS0=n ATS0=0 Quick Tips when issuing AT Commands AT Command Set/Type Example Command Description Modem Result Codes Changing S Register Values Viewing S Register Values Storing Phone Numbers Non-Volatile MemoryDialing Stored Phone Numbers AT&Zs=n Helpful Hints for PC Computers Saving Settings and User Profiles Default Modem Settings for PC’s AT Command DescriptionZyXEL Serial/Parallel I/O Card Helpful Hints for Macintosh Computers Special AT Command Settings for MacintoshMacintosh Serial Port Mac Software Tips Basic Modem Settings for Unix Helpful Hints for UNIX-Based ComputersSerial Cable Unix Software Tips Synchronous Mode Operation 25bis Command SetSynchronous Mode Operation Clock Options Syntax Command with Description Parameters RTS Options Dialing from Synchronous Mode Command State OptionsSync AT&M1 Data Answering from Synchronous Mode Auto-AnswerManual Answer Synchronous Mode Operation Line Type Setting Connecting to a Leased LineAT-Command Description Leased Line Operation Leased Line Handshaking Power Level SettingManual Connect Auto Handshake Dial Backup Leased-Line Dial BackupAT*M0 AT*M1 Aborting from Leased-Line Operation Terminating a Leased Line Connection Security Functions Special FunctionsLevels of Security Special Functions User Passwords Enters the callback number Command Function Remote Configuration AT*RabAT*Wab Caller Number Delivery Caller ID Ring Here is an example Distinctive Ring Type Bit Ring Sequence Extended Distinctive Ring EDR Special Functions S51 Bit-mapped register default Bits Bin Dec Description Setting Up EDR CID/EDR RD EDR Application Example Special Functions Special Functions Fax Operation Modem as Fax MachineFax Operation Fax Command sets Defining the Fax Command SetsITU-T T.30 Fax Protocol Command Value Description Class 1 Command Set +FTH and +FRH support value 3 V.21 ch / 300 bps only Class 2 Command Set Command Syntax Description Value+FCIG=string Ln,df,ec,bf,st +FDCC=vr,br,wd +FDIS=vr,br,wd,l +FDCS=vr,br,wdDf,ec,bf,st +FDR +FLID=string +FK+FMDL? +FMFR? +FREV? Response Value Function and Description+FCFR +FVOICE +FPOLL +FBS? Class 2.0 Command Set+FCC=vr,br,w +FCO +FDT +FIS=vr,br,wd +FLI=stringTpr,idr,nsr +FPI=string +FNS=stringDCE +FRQ=pgl,cbl +FCICSI ID HEX +FNC A0-BFNSC FIF +FNF NSS FIF +FNS+FPI CIG ID Extended Fax AT Command Set Modem will wait for DC2 at the beginning of every No Dial #PstringTone No Carrier Busy Field Description SnnnnPstring Flow Control String Error Level Fax Reception from a BBSConnect Init AT&FX7S0=1#B1+FCLASS=6 ExtrnMail ZyXEL errorlevel Basic AT Command Set AT Command Set SummariesCommand Options Function & Description AT Command Set Summaries Command Options Function & Description UPX Link Status Report output appears as follows Description of ATI2 Output Output Parameter Output Value Description Data Type Description DTE DTE/DCE Extended AT& Command Set Command Options Function & Description Command Options Function & Description Command Options Function & Description Command Options Function & Description Command Options Function & Description Extended AT* Command Set Command Options Function & Description Command Options Function & Description Status Registers & Result Codes Command Function & Description +RefRegister Descriptions Basic S-Registers ATSn=x Extended S-Registers ATSn=x Command Bit Dec Hex Function and description Command Bit Dec Hex Function and description Command Bit Dec Hex Function and description Command Bit Dec Hex Function and description Command Bit Dec Hex Function and description ATX1 ATX2 ATX3 ATX4 Command Bit Dec Hex Function and description Command Bit Dec Hex Function and description Command Bit Dec Hex Function and description Command Bit Dec Hex Function and description ATA Command Bit Dec Hex Function and description Command Bit Dec Hex Function and description Command Bit Dec Hex Function and description Command Bit Dec Hex Function and description Command Bit Dec Hex Function and description Command Bit Dec Hex Function and description Register bit number, b, used in ATSr.b=n ATSr.b=? Result Code Options ATXn Result Code Option Table+nnn Supported Result Code Field Descriptions Connect Strings for Error Corrected ConnectionsField Name Possible Values Numerical Verbose 24000 Status Registers & Result Codes Diagnostics & Troubleshooting DiagnosticsDiagnostics & Troubleshooting Power-On Self Test FR Calibration Loopback Tests Indicator Lights Line Condition Status Display Received Signal Power Level RX Link Status Report ATI2 Characters sent from the DTE to the modem for transmission Data bytes sent to the remote modem ∙ Local Hang-up ∙ Remote Hang-up ∙ Carrier Lost ∙ On Line AT Command Set Problems Trouble Shooting Your modem fails to execute AT commands Answer Problems Command Echo Problems Dialing Problems Connect Problems Data Transfer Problems Upgrading by Flash Eprom Upgrading Your ModemType ATUPXenter Upgrading Your Modem Kernel Recovery Mode Terminal Blocks Terminal PinoutsTIP Terminal Pinouts PC Serial Port Pinouts Pin/Signal Direction DescriptionSigna Name Mac Modem Description Din Macintosh Serial Port Pinouts Terminal Pinouts Index Index Smartdrv