ZyXEL U-336R/RE User Manual

U-336R/REUser’s GuideVersion 1.0(Mar. 1997)ZyXELACCESSING INTERNET & INTRANET

xConnecting to a Leased Line 35Line Type Setting 35Power Level Setting 36Leased Line Handshaking 36Manual Connect 36Auto Handshake 36Leased-Line Dial

88 AT Command Set SummariesCommand Options Function & Description Ref.&T6 Initiate Remote Digital Loop-back(RDL) test.&T7 Initiate Remote

AT Command Set Summaries 89Command Options Function & Description Ref.&Y2 Nondestructive, unexpedited.&Z? Display all the phone numbers s

90 AT Command Set SummariesCommand Options Function & Description Ref.*Fn Remote configuration enable. S36.0*F0 * Deny remote configuration.*F1

AT Command Set Summaries 91Command Options Function & Description Ref.*M1 Set to Answer mode.*Pn n=0-15*P11 *Set leased line transmission power

92 Status Registers & Result Codes9 Status Registers & ResultCodesS-Register DescriptionsIn most bit-mapped S-registers, the default bit valu

Status Registers & Result Codes 93Command Function & Description +Ref.“W” dial modifier to wait for the dial tone.(See also S41b4)S7= Set dur

94 Status Registers & Result CodesCommand bit dec hex Function and description Ref.back test request.2 2 Deny Remote Digital Loop-back test.&

Status Registers & Result Codes 95Command bit dec hex Function and description Ref.96 60 Profile 3 as active settingsafter power on.Z3128 80 * Fa

96 Status Registers & Result CodesCommand bit dec hex Function and description Ref.value settings (n) the sameas S20.S19= dec hex Modem connectio

Status Registers & Result Codes 97Command bit dec hex Function and description Ref.25 19 62400 bps26 1A 41600 bps27 1B 31200 bps28 1C 24960 bps29

xi8 AT Command Set Summaries 77Basic AT Command Set 77Description of ATI2 Output: 80Extended AT& Command Set 83Extended AT* Command Set 899 Status

98 Status Registers & Result CodesCommand bit dec hex Function and description Ref.32 20 Ignore RTS (CTS alwaysON) in synchronous mode.(Default).

Status Registers & Result Codes 99Command bit dec hex Function and description Ref.48 30 ATX6, error control resultcode enabled.X656 38 ATX7, err

100 Status Registers & Result CodesCommand bit dec hex Function and description Ref.0 0 No error control. &K01 1 MNP4 + MNP3 (see alsoS41.0)&

Status Registers & Result Codes 101Command bit dec hex Function and description Ref.bps communication.S29= 0-49 0-31 Set default dial phonenumber

102 Status Registers & Result CodesCommand bit dec hex Function and description Ref.password will be requested.This bit in profile 0 alsoprotects

Status Registers & Result Codes 103Command bit dec hex Function and description Ref.128 80 Enable type 2 security withpassword check and call-bac

104 Status Registers & Result CodesCommand bit dec hex Function and description Ref.+FCON at current DTE,shift to 19,200 whenentering into the ne

Status Registers & Result Codes 105Command bit dec hex Function and description Ref.7 128 80 Ignore calling tone, not to beused as fax detection.

106 Status Registers & Result CodesCommand bit dec hex Function and description Ref.between off-hook andmodem answering.7 128 80 Modem hang-up if

Status Registers & Result Codes 107Command bit dec hex Function and description Ref.(discontinuous) ring-backdetection.S45= dec0-255hex0-FFDelay

xii12 Terminal Pinouts 133Terminal Blocks 133PC Serial Port Pinouts 134Macintosh Serial Port Pinouts 13513 Index 137

108 Status Registers & Result CodesCommand bit dec hex Function and description Ref.4 16 10 (Work with &D1 command)DTR ON will have themodem

Status Registers & Result Codes 109Command bit dec hex Function and description Ref.1 1 Reports RING twice.2 2 Reports RING four times.3 3 Report

110 Status Registers & Result CodesCommand bit dec hex Function and description Ref.signal of the V.23handshaking sequence(Default).128 80 Select

Status Registers & Result Codes 111hexEquivalent Hexadecimal value.+nnnFactory default when listed in 'Reference' column.Note:'AT&

112 Status Registers & Result CodesATV0 ATV1 X0 X1 X2 X3 X4 X5 X6 X720 CONNECT 57600 % % % % @21 CONNECT 76800 % % % % @22 CONNECT 115200 % % % %

Status Registers & Result Codes 113DCE_Speed/Error_Control †Example: CONNECT 38400/V.32bis14400/V.42bis$ <cr><lf>CONNECT DCE_Speed[/E

114 Status Registers & Result CodesNumericalV0Verbose V1 NumericalV0Verbose V153 CONNECT480061 CONNECT2400054 CONNECT720062 CONNECT2640055 CONNEC

Status Registers & Result Codes 115

116 Diagnostics & Troubleshooting10 Diagnostics & TroubleshootingDiagnosticsThe U-336R/RE is equipped with several diagnostic capabilities:•

Diagnostics & Troubleshooting 117OONOTE: * ITEMS APPLICABLE EXCLUSIVELY TO U-336R INSTALLED IN RS-1612 RACKSYSTEM.Power-On Self TestAt each power

Introduction 11 IntroductionWhat This Manual CoversCongratulations on the purchase of your U-336R/RE modem - oneof ZyXEL's premier high-performa

118 Diagnostics & Troubleshooting8 FR CALIBRATIONFAIL...Analog circuit calibration error.Loopback TestsThe Analog Loopback Test, Local Digital L

Diagnostics & Troubleshooting 119received from the remote modem will be returned to the remotemodem. This test is applicable when the remote mode

120 Diagnostics & TroubleshootingDialing IndicatorThe V34 LED will flash on and off for 1/2 second intervals toindicate that the modem is dialing

Diagnostics & Troubleshooting 121Received Signal Power Level (RX)This reading is expressed in 1 dBm resolution. The modemmeasured receiving signa

122 Diagnostics & TroubleshootingFRN (Fast Rate Negotiation) Granted (FG)The count of the granting of the remote modem's change rate(FRN) re

Diagnostics & Troubleshooting 123 Retrain Requested 0 Link Duration 1 Retrain Granted 0 T401 Timeouts 0 T402 Timeouts 0 FCS Errors 0

124 Diagnostics & TroubleshootingChars ReceivedCharacters received by the modem from the line and sent to theDTE.Octets SentData bytes sent to th

Diagnostics & Troubleshooting 125T401 Timeouts and T402 TimeoutsThese are for the manufacturer checking link layer operation. T401and T402 are ti

126 Diagnostics & Troubleshooting• Resent Expiration• Protocol Error• Break Timeout• DTR Dropped• Carrier Lost 1 (No handshaking response)• Carri

Diagnostics & Troubleshooting 127ProblemYour modem fails to execute AT commands.Solutions1. Make sure the DTR LED is ON. If it is OFF, make sure

2 Introduction• 14 LED indicators (RE/RD).• 15 LED indicators (R).• Extended AT command set with V.25bis.• Operates on 2-wire dial-up or 2-wire lease

128 Diagnostics & TroubleshootingProblemYou receive the ERROR result code after typing an AT command.SolutionYou may have typed a command that is

Diagnostics & Troubleshooting 1292. Your modem may not be set up for auto-answer. With themodem in command state, type ATS0=1 and press Enter toh

130 Diagnostics & TroubleshootingData Transfer ProblemsProblemYou can make a data connection with a remote modem, butencounter frequent errors du

Upgrading Your Modem 13111 Upgrading Your ModemUpgrading by Flash EPROM1. Obtain the new firmware by downloading from the ZyXELBBS, WWW or FTP site.

132 Upgrading Your Modem10. When the installation is complete, the modem restartsautomatically.Kernel Recovery ModeYour modem is equipped with ZyXEL’

Terminal Pinouts 13312 Terminal PinoutsTerminal BlocksEach terminal block has eight terminal pins for connecting phonelines to the corresponding mode

134 Terminal PinoutsPC Serial Port PinoutsSignal PinITU-TSSSignalNameEIASignalNamePin/SignalDescriptionDirectionDTE-DCE1 101 AA Protective Ground(GND

Terminal Pinouts 135Signal PinITU-TSSSignalNameEIASignalNamePin/SignalDescriptionDirectionDTE-DCELoop Test.22 125 CE RingIndicator(RI).←24 113 DA Tra

136 Terminal Pinouts

Index 13713 Index16450 UART, 2516550 UART, 5, 25, 262-wire leased line, 2, 4, 35, 954-wire leased line, 2, 4, 35, 85, 86, 95Amiga, 1Analog loopback,

Introduction 3• EDR (extended Distinctive Ring).• Flash EPROM memory lets you easily upload new firmware,providing you with easy access to new featur

138 IndexRemote digital loopback, 3, 31, 43,120ROM code checksum, 118RS-1612, 9, 10RS-232, iv, 5, 11, 53, 55, 109, 119,120, 137RTS, 3, 8, 31, 60, 63,

4 Introduction• Line interface: 2-wire dial-up or 2-wire leased line (RE).• Line interface: 2-wire dial-up or 2/4-wire leased line (R).• Call progres

Introduction 5• Computer terminal.• Available PC serial port with a high-speed 16550 UART.• Standard "straight-through” RS-232 cable (pins 1-8,

6 Introduction

Installation 72 InstallationThis chapter covers the steps required to install your U-336R/REmodem into a ZyXEL RS-1612 rack system. A separatecompreh

iiZyXEL Limited WarrantyZyXEL warrants to the original end user (purchaser) that thisproduct is free from any defects in materials or workmanship for

8 InstallationLED Name ON BlinkingTXD TransmitIndicatorThe DTE is sendingdata to modem fortransmission.RXD ReceiveIndicatorThe modem issending receiv

Installation 9LED Name ON BlinkingSQ Signal Quality Modem senses agood quality signal.Modemsensesmarginalsignal quality.The following LED is for the

10 InstallationInstalling the modem cardThe rack system in which you will install your modem has sixteenavailable modem slots. You may use any slot f

Installation 11• U-336R Section 3 (terminals 5 ,6 ,7 & 8) For leased lineconnection.Connect to ComputersEach modem slot has a corresponding 25-pi

12 Installation1496 modem. In many cases, the commands for these modemsare identical. Select the following communication settings:Setting ValueBaud r

Installation 1310 for troubleshooting suggestions.

14 Installation

Basic Modem Operation 153 Basic Modem OperationThis chapter covers the basic commands and techniques involved inmodem operation. In many cases, this

16 Basic Modem OperationTerminal” program. This program provides a simple method tomanually enter AT commands so you can do such things as“customize”

Basic Modem Operation 17Your modem responds: OKThis confirms that the modem and your computer arecommunicating correctly.To test the telephone line c

iiirights, and you may also have other rights which vary from state tostate.Copyright © 1997 by ZyXELThe contents of this book may not be reproduced (

18 Basic Modem OperationPausing During Dialing: ATDT 9,,555 1212OONOTE: THE PAUSE TIME FOR EACH COMMA IS DEFINED BY S REGISTER S8. DEFAULT IS2 SECOND

Basic Modem Operation 19Start the terminal program by double-clicking the Test Connectionicon. When the terminal window appears, enter the dial comma

20 Basic Modem Operationterminal window when you type, the modem’s echo setting isprobably set to off. In this case, issue the ATE1 command.• When a

Basic Modem Operation 21AT Command Set/Type ExampleS-Register command ATS0=1S-Register bit-mapped command (set S-Register bit 1 equal to 1)ATS13.1=1S

22 Basic Modem Operationmodem uses. By default, your modem uses result codes equivalentto the ATX5 command.The result code options will be covered mo

Basic Modem Operation 23Non-Volatile MemoryYour modem has an amount of memory set aside for storing userinformation such as frequently used phone num

24 Basic Modem OperationSaving Settings and User ProfilesThere are some cases where you may wish to save the settings youhave made as the default set

Basic Modem Operation 25your software supports it, replace the 16450 UART with a 16550model. This newer chip has an internal buffer and generates ani

26 Basic Modem OperationThe serial port is 16550-compatible for most communicationsoftware usage. It has a speed of up to 460.8Kbps and data losserro

Basic Modem Operation 27readily available as PD, shareware or commercial software. One ofthe most powerful shareware programs available is ZTerm.Fewe

ivand if not installed and used in accordance with the instructions,may cause harmful interference to radio communications.If this equipment does caus

28 Basic Modem OperationDepending on your Unix setup, the cable and software used, youmay have to disable carrier detection using AT&C0.Unix Soft

Synchronous Mode Operation 294 Synchronous Mode OperationThis chapter introduces you to the use of the U-336R/RE forsynchronous operation. The modem

30 Synchronous Mode OperationSyntax Command withParameters*DescriptionCRN CRN <dialstring>** Call request with numberprovided.CRS CRS n Call re

Synchronous Mode Operation 31carrier and sends the data to the receiving DTE along with theclock. There are three types of transmission synchronous c

32 Synchronous Mode OperationCommand State OptionsFor synchronous data communication, there are two options youcan choose from to define how the mode

Synchronous Mode Operation 334. Manual dial: Set the modem to synchronous mode (&M1 or&M3), then dial a number from a telephone set. When you

34 Synchronous Mode Operation

Leased Line Operation 355 Leased Line OperationA leased line is a permanent telephone line connection between twofixed points. It can be dedicated co

36 Leased Line OperationPower Level SettingYour modem’s leased-line mode transmission power level can beadjusted from 0 dBm to -27 dBm in 1 dBm incre

Leased Line Operation 37configuration. Be sure that one modem is set to originate mode andthe other to answer mode.AT-Command DescriptionAT*M0 When o

vcompany’s inside wiring associated with a single line individualservice may be extended by means of a certified connectorassembly. The customer shoul

38 Leased Line OperationThe originating modem will try to dial the number up to nine timesor until a 3-minute time-out is activated. If the dial back

Special Functions 396 Special FunctionsThis chapter describes special features of the U-336R/RE, andoffers instructions on how each is used.Security

40 Special Functions• With level 1 security, the local modem will maintain theconnection if the password is OK, otherwise the linedisconnected.• With

Special Functions 41 The following commands will enabledifferent types and Verify: (Enter the newsupervisor password again) ******** OKThe command AT

42 Special FunctionsRemote ConfigurationRemote configuration for your modem is provided as a profile byprofile batch mode. When on-line, the remote m

Special Functions 43The remote profile read and write commands - *Rab and *Wab -only work in the on-line condition. The connection speed and modedo n

44 Special FunctionsThere are two kinds of caller information message formats sent bythe phone company:• One is the single message format which inclu

Special Functions 45Brent Harper RINGIn the multiple message format, if the caller’s number and name areavailable, the ring message will display both

46 Special FunctionsOONOTE: PLEASE REFER TO THE BELLCORE TECHNICAL ADVISORY DOCUMENT TR-NWT-000030 FOR THE EXACT DATA FORMAT. THE ABOVE CALLER ID SCH

Special Functions 47ring types is the two-second ON part of the ring signal. Itcomprises a long, double short, or triple short ring.S-register S40 bi

vi1. The Council Directive 89/336/EEC of 3 May 1992 on theapproximation of the laws of the member states relation toElectro Magnetic Compatibility. (E

48 Special Functionsinterfering with regular voice calls. When most users install afax/modem at home, they won’t subscribe to an extra telephone line

Special Functions 49to press the START button, the caller can press a designatedDTMF tone, which will activate the modem to report andsubsequently be

50 Special FunctionsEDR detection (either CNG or DTMF tones) will be disabled oncedetection occurs. However, a customer’s program might notanswer bec

Special Functions 514. Set S51.2=1 to enable DTMF tone detection. It is reported asRING. If the remote fax machine does not generate the CNGtone, ask

52 Special Functions

Fax Operation 537 Fax OperationIn the sections below, we will describe how the U336R/RE worksas a fax machine, the ITU-T T.30 fax protocol, the Class

54 Fax OperationITU-T T.30 Fax ProtocolThe U-336R/RE takes full control of the ITU-T T.30 fax protocol,also known as G3 fax handshaking signals and p

Fax Operation 55Class 1 commands control on-line modem negotiation while Class 2commands allow the modem to do many negotiationssimultaneously. The C

56 Fax OperationCommand Value Descriptionunits.+FRS=n 0-255 Wait for silence, in 10 ms units.+FTM=<MOD> Transmit data with <MOD> carrier.

Fax Operation 57Command Syntax Description+<command>=<value> Execute a command or set a parameter.+<command>=? Read permissible set

vii• Product information: Visit our site on the World Wide Web:http://www.zyxel.com.• FTP: Information , such as ZyXEL software and ROM updatesfor Nor

58 Fax OperationCommand Value Descriptionparameter.n=0 No copy quality check capability.n=1 Only check 1D phase C data.n=2 Check both 1D and 2D phase

Fax Operation 59Command Value Descriptionbf=0 Disable binary file transfer.st=0 Minimum scan time/line: 0 ms.st=1 Minimum scan time/line: 5 ms.st=2 M

60 Fax OperationCommand Value Description+FK Regular fax abort command.+FLID="string" Local ID string parameter.+FLO=n Flow control options

Fax Operation 61Command Value Descriptionn=5 Page good; procedure interruptrequested.+FREL=n Phase C received EOL alignment:n=0 The EOL patterns are

62 Fax OperationResponse Value Function and Descriptiont+FET:n Post page message response; refer to the+FET=n command.+FHNG:n Call termination status

Fax Operation 63Class 2.0 Command SetCommand Syntax Description+<command>=<value> Execute a command or set a parameter.+<command>=?

64 Fax OperationCommand Value Descriptiontq=0 DCE Transmit Copy Quality Checkingdisabled.tq=1 DCE Transmit Copy Quality Checkingenabled.tq=2 DCE Tran

Fax Operation 65Command Value Descriptionand reported using the +FVO response.+FIP Initialize facsimile parameters to factorydefault.+FIS=vr,br,wd,ln

66 Fax OperationCommand Value Description(+FCS parameter is still loaded)tpr=1 Transmitter Parameters are reported.+FCS: response reports are generat

Fax Operation 67Command Value Description0-64(HEXvalue)with negotiated number of pixels)required for a page consideredacceptable. The percentage of g

viiiContentsZyXEL Limited Warranty iiFCC Part 15 Information iiiInformation for Canadian Users ivContacting ZyXEL vi1 Introduction 1What This Manual C

68 Fax OperationResponse Value Function and Descriptionprocedure interrupt requested.ppm=4 Another document next, procedureinterrupt requested.ppm=5

Fax Operation 69Response Value Function and Description+FNS:"NSS FIFstring"Report NSS (non-standard Setup) frame.+FPI:"CIG IDstring&qu

70 Fax OperationExtended Fax AT Command SetExtended Fax AT Commands are unique to ZyXEL modems. Thecomputer controls the modem through a set of exten

Fax Operation 71Command Functionmodem will wait for DC2 at the beginning of everypage. The DTE software should detect the pageseparator RTC and then

72 Fax OperationCommand Function#C2 Set minimum scan line time capability of thereceiver: 10 ms at 3.85 line/mm, T(7.7)=T(3.85).#C3 Set minimum scan

Fax Operation 73CONNECT FAX See below.When a fax connection is successfully established, the modemreturns this message: CONNECT FAX/SnnnnVnTnRnLnCnP&

74 Fax OperationThe basic AT commands ATV0 and ATQ1 do not affect the aboveCONNECT and DISCONNECT status report result codes. Themodem will always re

Fax Operation 75Fax Reception from a BBSYour modem can automatically detect data and fax calls and allowBBS software to receive faxes on the same pho

76 Fax OperationString Error Level1 ZyXEL 10023The following is a sample setting in the BINKLEY.CFG file for aBinkley system. Init AT&FX7S0=1#B1+

AT Command Set Summaries 778 AT Command Set SummariesBasic AT Command SetCommand Options Function & Description Ref.A/ Re-execute the last comman

ixDialing using the ATD Command 17Auto-Answer and Hook Controls 18Making Your First Connection 18Quick Tips when issuing AT Commands 19Modem Result Co

78 AT Command Set SummariesCommand Options Function & Description Ref., Pause for a time specified in S8.Remaining digits will be dialed as in-ba

AT Command Set Summaries 79Command Options Function & Description Ref.I12 Display physical layer status.Ln n=0-74 *Speaker volume control. The hi

80 AT Command Set SummariesCommand Options Function & Description Ref.Vn Sets display type for Result Codes. S23.6V0 Display result code in numer

AT Command Set Summaries 81 Max Outstanding 8 Max Block Size 256 Retrain Requested 0 Link Duration 1 Retrain Granted 0 T401 Timeouts 0 T4

82 AT Command Set SummariesOutput Parameter Output Value DescriptionChars Received Number of characters modem has sent toDTE.Octets Sent Number of da

AT Command Set Summaries 83Output Parameter Output Value DescriptionCarrier Lost On-Line (Notdisconnected)Resent Expiration Protocol ErrorBreak Time-

84 AT Command Set SummariesCommand Options Function & Description Ref.&D3 Same as &D2 but DTR OFF causesthe modem to hang up and reset fr

AT Command Set Summaries 85Command Options Function & Description Ref.buffering.&M1 Asynchronous command,synchronous data.&M2 Direct asyn

86 AT Command Set SummariesCommand Options Function & Description Ref.&N11 V.26bis 2400 (models with 4-wireleased lines only)&N12 V.23 12

AT Command Set Summaries 87Command Options Function & Description Ref.&N66 V.34 19200&N67 V.34 16800&N68 V.34 14400&N69 V.34 1200