RAD Data comm ASMI-450 operation manual Loop REM REM Port, Operating Instructions

Page 95

Diagnostics

LOOP REM REM PORT

When the remote user's port loopback is activated, the user's port interface of the remote ASMi-450 returns the received data signal toward the local user's DTE. The remote loopback is performed by internally connecting the DCE receive signal, to the input of the transmit path. The received data signal remains connected to the remote user's DTE. The test signal is provided by the local user's DTE, that must receive its own transmission without errors while the loopback is activated.

Figure 5-2 shows a typical remote user's port loopback.

This test fully checks the data link, including the cables connecting the two ASMi-450 to the HDSL line, the transmission plant connecting the two ASMi-450, and the cable connecting the local user's DTE to the local ASMi-450.

 

 

 

 

 

 

LOCAL ASMi-450

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

User

 

 

 

 

Processing

 

 

 

 

HDSL Line

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Interface

 

 

 

 

 

 

 

 

Interface

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

HDSL Line

 

REMOTE ASMi-450

 

HDSL Line

Processing

User

Interface

Interface

 

TEST OPTIONS

Operating

Instructions

Figure 5-B. LOOP REM REM PORT Loopback

Before starting the execution of a test, note that in general you should activate only one loopback at a time.

To activate or deactivate a specific test, use the following procedure:

Step

Action

Key

Display

 

 

 

 

 

 

 

 

1

Bring the cursor under the left-hand field in

CURSOR

 

 

the top row (if not already there)

 

 

2

Scroll to display TEST OPTIONS in the top

SCROLL

The right-hand field of the top row should

 

row

 

show OFF, to indicate that no test is active.

 

 

 

LOOPS indicates that a test is currently

 

 

 

active (in this case, the front-panel TST

 

 

 

indicator lights).

 

 

 

Second row is empty

3

To enable the activation of tests, bring the

CURSOR,

The second row displays the first test option

 

cursor under the right-hand field in the top

SCROLL

 

 

row, and scroll to display LOOPS

 

 

ASMi-450 Installation and Operation Manual

5-7

Image 95
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 ConfigurationFunction Terminal Type TV920 VT52 VT100 Freedom 100/110 Configuration ProcedureStep Action Use the Command 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 TimingRemote Management Control ASMi-450 OperationLocal Control Introduction Power Requirements Test and Diagnostics CapabilitiesAlarms Physical CharacteristicsOperating Environment Transmission Media Hdsl Line SignalBinary Digits Quaternary Symbol Hdsl Signal Structure HDSL-Related System Functions Hdsl Interface Technical SpecificationsEthernet Interface Physical Characteristics General Chapter InstallationSite Requirements UnpackingOpening ASMi-450 Case ASMi-450 Configuration InformationGeneral Switch S1 Jumper and Switch Location FunctionsASMi-450 Internal Settings OFF Jumper FGND/GND Internal Settings Procedure Reinstalling ASMi-450 CoverJumper R/C Connector Location Grounding DC Power Connection Power Connection Users Port ConnectionsAC Power Connection Hdsl Line Connections Control Port Connection Scope Chapter Front-Panel Operating InstructionsControl or Indicator Function Front Panel Controls, Connectors, and IndicatorsEthernet Interface IndicatorsIndicator Function 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 ConfigurationScroll DisplayCursor 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 RTSData Set Ready DSR Autobaud FunctionRing Indication RI 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 LoopDEF Agent CLR TSTDate Display Fields DEF NameDEF PWD DEF NodePurpose Format Use DEF SPPWD DEF Term DEF SYSFormat Use DSP ALMFunction Terminal Type VT-52 VT-100 Freedom-110 Alarm No Alarm Syntax Meaning State Time Remote DB Remote AlarmRemote Signal Loss Quality AlarmConnected DSP HDR TSTDSP ST Line REM LAN notPurpose Format Use Display Format DSP ST PortDisplay Format Exit DSP ST SYSHelp Init DB Parameter Designation Default ValueNode PasswordLoop 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 CablesRceb Pin Designation Direction Function 36/RS-449/422Rcea 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 Snmp Operations Snmp EnvironmentGeneral Snmp Principles MIBs Supported by the ASMi-450 Snmp Agent Management Information BaseMIB Structure Snmp Communities Access Restriction Using Snmp CommunitiesManagement Domains Under 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