RAD Data comm ASMI-450 operation manual Functional Description, Purpose and Main Features

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Serial data port. The port can be ordered with V.35, RS-530, or X.21 interface (the RS-530 interface also supports V.36/RS-422/RS-442 by means of an adapter cable).

Chapter 1

Introduction

Purpose and Main Features

1.1 Functional Description

The ASMi-450 is a high-speed HDSL modem that enables long-range data transmission over one unconditioned twisted-pair line, using the High Bit Rate Digital Subscriber Line (HDSL) technology.

The HDSL technology offers a cost-effective and reliable solution for delivering high-speed data to the subscriber premises over the existing copper cables and subscriber loops of the local distribution plant.

The ASMi-450 is fully compatible with the ASMi-450C high-speed HDSL modem card, which is intended for installation in the 12-Card HDSL/Modem Hub with SNMP Management, LRS-12, offered by RAD.

The ASMi-450 can transmit full duplex over unconditioned AWG-22, AWG-24, and AWG-26 twisted pair loops. Using advanced equalization, adaptive filtering, and echo cancellation techniques, the ASMi-450 compensates for line impairments, bridged taps, and mixed cables commonly encountered in the local distribution network. Moreover, due to its high immunity to background noise, the ASMi-450 enables the transmission of multiple HDSL signals in the same physical cable without requiring pair selection.

The ASMi-450 is available in two versions, optimized for maximum range in accordance with the user's payload data rate:

∙ASMi-450/1152: can transmit data rates of n×64 kbps, where n is 1 through 18 (corresponding to data rates of 64 to 1152 kbps). Typical ranges are up to 4.5 km over AWG-24 (0.5 mm) cable, and up to 3.6 km over AWG-26 (0.4 mm) cable.

∙ASMi-450/768: can transmit data rates of n×64 kbps, where n is 1 through 12 (corresponding to data rates of 64 to 768 kbps). Typical ranges are up to 5.7 km over AWG-24 (0.5 mm) cable, and up to 4.1 km over AWG-26

(0.4 mm) cable.

Both ASMi-450 versions are available with two types of user interfaces:

∙

ASMi-450 Installation and Operation Manual

1-1

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Contents ASMi-450 Warranty Hdsl SelvRegulatory Information Declaration of Conformity Page Contents ASMi-450 Control from the Control Port Appendix a Connector Wiring Contents List of Figures List of Figures Xii List of Tables List of Tables Xiv Preliminary Preparations Starting Procedure Starting the ConfigurationStep Action Use the Command Configuration ProcedureFunction Terminal Type TV920 VT52 VT100 Freedom 100/110 Type Configuration Display Commands Control Commands Command IndexQuick-Start Guide Functional Description Purpose and Main FeaturesTypical Application for ASMi-450 with Data Interface Hdsl Subsystem Characteristics Internal timing System TimingLocal Control Control ASMi-450 OperationRemote Management Introduction Power Requirements Test and Diagnostics CapabilitiesAlarms Physical CharacteristicsBinary Digits Quaternary Symbol Transmission Media Hdsl Line SignalOperating Environment Hdsl Signal Structure HDSL-Related System Functions Hdsl Interface Technical SpecificationsEthernet Interface Physical Characteristics General Chapter InstallationSite Requirements UnpackingGeneral ASMi-450 Configuration InformationOpening ASMi-450 Case Switch S1 Jumper and Switch Location FunctionsASMi-450 Internal Settings OFF Jumper R/C Internal Settings Procedure Reinstalling ASMi-450 CoverJumper FGND/GND Connector Location Grounding AC Power Connection Power Connection Users Port ConnectionsDC Power Connection Hdsl Line Connections Control Port Connection Scope Chapter Front-Panel Operating InstructionsControl or Indicator Function Front Panel Controls, Connectors, and IndicatorsIndicator Function IndicatorsEthernet Interface General General Operating Instructions Display Functions Control of ASMi-450 Operation, GeneralDisplay Description See Configuration ParametersStatus Messages Test FunctionsPush-buttons Using Front-PanelOrganization ASMi-450 DisplayFront-Panel Operating Instructions Designation Function Values System Configuration ParametersControl Port Configuration Parameters Operating Instructions Turn-on Checking Current Operating ConfigurationCursor DisplayScroll Ethernet Interface Indications Fault IndicationsStep Action Key Display Normal Front-Panel IndicationsProtection Local Configuration Set-Up ProcedurePassword Configuration ProcedureAlready there Scroll to display the desired group Alarm Buffer Specific Configuration GuidelinesSP Parameters LCD Configuration Error Messages Front-Panel Operating Instructions Chapter ASMi-450 Control from the Control Port Hardware Requirements Clear to Send CTS Interface TypeData Terminal Ready DTR Request to Send RTSRing Indication RI Autobaud FunctionData Set Ready DSR ASMi-450 Preparations Supervision Terminal Connections Internal SettingsControl Port Configuration Preparation for Use of Supervision TerminalOption Meaning Example of Usage Command Language Syntax Command OptionsCommand Protocol ASMi-450 Supervision LanguageIndex of Commands Command Purpose Options Format ASMi-450 Command Set DescriptionCLR ALM CLR LoopDate CLR TSTDEF Agent Display Fields DEF NameDEF PWD DEF NodePurpose Format Use DEF SPPWD DEF Term DEF SYSFunction Terminal Type VT-52 VT-100 Freedom-110 DSP ALMFormat Use Alarm No Alarm Syntax Meaning State Time Remote DB Remote AlarmRemote Signal Loss Quality AlarmConnected DSP HDR TSTDSP ST Line REM LAN notDisplay Format DSP ST PortPurpose Format Use Display Format Exit DSP ST SYSHelp Init DB Parameter Designation Default ValueLoop PasswordNode Time ResetStarting a Session Single ASMi-450 Control Session Ending a Control Session Configuration Error Messages ASMi-450 Control from the Control Port Status Indications and Messages Indicators DisplayON/OFF Message Description Corrective Actions AlarmASMi-450 Alarm Buffer Messages Cont’d Remote Alarm Remote Reverse Test Functions Test FunctionsOperating Instructions Loop REM REM PortActivating the Test Functions from a Control Terminal Power-Up Self-TestTrouble Symptoms Probable Cause Corrective Measures Troubleshooting InstructionsLAN Pin Designation Direction Function RS-530 DCE Connector and Adapter CablesRcea Pin Designation Direction Function 36/RS-449/422Rceb V.35 DCE Connector X.21 DCE Connector Pin Line Connected Connected to To Terminal Hdsl Line ConnectorRS-232 V.24 Control Port Connector Pin FunctionEthernet Interface Connector Appendix B Snmp Management General Snmp Principles Snmp EnvironmentSnmp Operations MIB Structure Management Information BaseMIBs Supported by the ASMi-450 Snmp Agent Management Domains Under Access Restriction Using Snmp CommunitiesSnmp Communities Read ASMi-450 CommunitiesAddress Class First Byte Address Range IP EnvironmentGeneral IP Environment IP Address StructureSnmp Management Snmp Traps Appendix C Installation in 19 Racks Figure C-1. Installation of Single Unit in 19 Rack Installation of Single UnitGeneral Preparations Installation of Two UnitsFastening the Two Units ASMi-450 To install the ferrite cores