Multi-Tech Systems MT3334HD8 Introduction, LED Indicators, Power Supplies, Manual Organization

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MT3334HD8 User Guide

Introduction

The Multi-Tech MT3334HD8 is a high speed, high density modem card for the CommPlete Communications Server. Each MT3334HD8 card contains eight integrated 33,600 bps modems. Each modem on the MT3334HD8 card can be configured independently of the others via the CommPlete Communications Server’s MR9600 controller, which can support and control up to 12 cards per rack. Users dial into the MT3334HD8’s modems through a T1 daughter card on the RASCard that controls the segment. There are no external connectors on the MT3334HD8.

Up to three MT3334HD8 cards can be installed per T1 segment. With eight modems per card, the CommPlete Communications Server can support up to 24 simultaneous data lines per segment, or 96 per CommPlete Communications Server

The MT3334HD8 operates as an enhanced ITU-T V.34 dial-up modem with a maximum speed of 33,600 bits per second (bps). As such, it includes the advanced features of Multi-Tech standalone modems such as the popular MultiModemZDXb.

The MT3334HD8 is registered by the FCC for direct connection to the public telephone networks. No Data Access Arrangements (DAAs) are required.

The MT3334HD8 is fully compatible with the standard AT command set, and is therefore compatible with all popular communications software packages.

This user guide will help you to install, configure, test, and use the MT3334HD8.

LED Indicators

The MT3334HD8 has 16 LED indicators on the front panel, two for each modem:

CD Carrier Detect. The CD LED lights when the modem detects a valid carrier signal.

OH Off Hook/Out of Service. The OH LED lights when the modem is off hook, which occurs when the modem is dialing, online, or answering a call. The LED flashes when the modem is in the busy-out or out-of-service state.

Power Supplies

DC voltages are supplied to all modems in the CC9600 rack through two PS9600 universal input switching power supplies designed for conventional 115 or 230 VAC input. The power supplies are designed for redundant, fail-safe operation. If one should fail, the other can supply the power requirements of the entire CommPlete Communications Server. Each PS9600 power supply has one LED indicator that indicates the presence of all supply voltages.

Manual Organization

Chapter 1 Introduction

This chapter describes the MT3334HD8 and its LED indicators, gives its technical specifications, and provides a guide to the organization of the manual.

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CommPlete Communications Server

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Contents MT3334HD8 Modem User Guide Multi-Tech Systems, Inc Woodale Drive Mounds View, Minnesota CommPlete Communications Server FCC Fax Warning Canadian Limitations NoticeTable of Contents Testing the MT3334HD8 Warranty, Service, and Technical SupportAppendix D Appendix FIntroduction LED Indicators Power SuppliesIntroduction Manual OrganizationInstallation Technical Specifications Data Rates ModemIntroduction 2400 & 1200 bps MT3334HD8 User Guide Power Installation Safety Warnings MT3334HD8 modem cardPre-Installation Notes Installation ProcedurePage AT Commands Modes of Operation Working with AT CommandsCommand Structure Command Editing AT Commands by Function $BA Dialing Commands Dial Modifier CommandsDs Dial Continuous RedialPulse or Tone Dialing Wait for New Dial ToneRn Reverse Originate/Answer Mode Return to Command Mode After DialingDialing Pause Flash On-HookPhone Number Memory Commands @ Quiet AnswerCall Card Tone Detect DsNd Store a Phone NumberConfiguration Storage and Recall Commands Wn Store ConfigurationNdNe Number Linking List Stored Telephone NumbersReset Modem Modem Response Result Code CommandsFn Load Default Configuration Echo Command Mode Characters Result Codes Verbose/Terse Online Connection Commands An Answerback#An Auto Speed Detection Bn Answer ToneDTn Dtmf Detection DCn AT Command ControlCDn Cleardown at Disconnect #Fn Fallback Modes Gn Guard TonesHn Busy-Out After Disconnect Pn Set Pulse-Dial Ratios#Tn Trellis-Coded Modulation RDn Square Wave Ring Detect$Tn Calling Tone Commands Fn Echo Canceler Frequency Offset CompensationYn Long Space Disconnect RAn Asymmetric Bit RateDn Data Terminal Ready Control RS-232 Interface CommandsCn Carrier Detect Control Rn Clear to Send Control Sn Data Set Ready ControlRFn CTS/RTS Interaction Control SFn DSR/CD Interaction ControlError Correction and Data Compression Commands En Error Correction Modes#Ln V.42 Error Correction Modes En Data Compression$An Auto-Reliable Buffering $En V.42 Error Correction at 300 bps$Fn Auto-Reliable Fallback Character Enable/Disable $Rn Retransmit Count Speed Conversion Commands$BAn Baud Adjust $MBn Modem Baud Rate $SBn Serial Port Baud RateImmediate Action Commands Repeat Last CommandInquire Product Code L5, L7 List Current Operating ParametersFlow Control Commands E3 Flow Control Disable En Non-Error Correction Mode Flow ControlE4 Hardware Flow Control E5 XON/XOFF Flow ControlEn Pacing Computer-Initiated Flow Control #Xn Number of Xoff Characters SentForce Answer Mode Escape Sequences+++ATCR In-Band Escape Sequence Breakatcr Out-of-Band Escape SequenceRemote Configuration Commands Atcr Remote Configuration Escape Sequence#Ixxxxxx Change Login Password Go Back OnlineLine Probe Commands #Syyyyyy Change Setup PasswordDPn Read Line Probe Data DFn Format Line Probe DataDiagnostic Commands Tn Respond to Remote Digital Loopback SignalRP Immediate Line Probe Ln Display Line Probe DataUn Loopback Test Modes MT3334HD8 User Guide Registers Registers S0 Number of Rings Until Modem AnswersS1 Ring Count S2 Escape Code CharacterS7 Time for Carrier Abort Timer S4 Line Feed CharacterS5 Backspace Character S6 Wait Time for Dial ToneS10 Carrier Loss Disconnect Delay Time S13 Remote Configuration Escape CharacterS9 Carrier Detect Response Time S11 Tone Dialing Spacing and DurationS30 Inactivity Timer S34 Command Buffer Length After Online Escape SequenceS24 PBX/CBX Disconnect Drop Time for DSR/CTS/CD S25 DTR Dropout TimeS94 Out-of-Service Time S37 DTR Busy-In TimeS43 Force V.34 Connect Speed S48 Maximum V.34 Connect SpeedAT Commands that Affect S-Registers Reading and Assigning S-Register ValuesExamples of Assigning Values Examples of Reading ValuesAT&E2$SP1#L3$R0$MB19200$SB115200$EB1S0=10&W0CR Testing the MT3334HD8 Test procedure Local Analog Loopback Test V.54 LoopTesting the MT3334HD8 Remote Digital Loopback Test V.54 LoopDial the remote modem and establish your online connection Local Digital Loopback Test V.54 Loop Local digital loopback testPage Warranty, Service, and Technical Support Limited Warranty ServiceTechnical Support Recording Product InformationDownloading a File Multi-Tech BBSLogging onto the Multi-Tech BBS About CompuServe Reading a MessageLeaving a Message BulletinsAbout the Multi-Tech Fax-Back Service About the InternetUsing FlashPro to Upgrade Firmware Upgrading the MT3334HD8 FirmwareMT3334HD8 User Guide Appendixes Appendix a Ascii Conversion Chart Ctrl Code HEX DECTone Dial Frequencies Appendix B Dial Pulses and TonesDial Pulses Figure B-2. Standard Dtmf frequencies Appendix C Result Code Summary Multi-Tech Result Codes &Q0Standard AT Result Codes &Q1 Register Unit Range Default Description Appendix D S-Register SummarySets fixed V.34 connect speed = 28800 bps Appendix E AT Command Summary ReturnCDn AT Command Summary $Fn Command Values Description Command Values Description $MBn RAn Command Values Description SFn Command Values Description #Vn Breakatcr Setup Appendix F Remote ConfigurationBasic Procedure Changing the Passwords Changing the Remote Escape CharacterIndex MT3334HD8 User Guide Index Long space break Pacing, 36, 37, 38 enable/disable, 38 ENQ/ACK Commands Loopback tests, 42, 43, 54, 56 tone detection
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