Multi-Tech Systems MMV1600 owner manual RD LED on

Page 66

not communicating

 

not installed on Supervisory

 

supervisory console, refer to comm

with mux command

Console.

 

software user’s manual forinstallation.

 

 

 

port

2.

Bad cable or cable

1.

Check RS232 cable connections

 

 

 

 

 

connection

between supervisory

 

 

console and COMMAND PORT on

 

 

 

MultiMux for loose connection or

 

bent pins, refer to Supervisory

 

 

 

 

Console Installation procedures in

 

 

Chapter 4

 

 

 

 

 

 

 

 

 

 

2.

Check RS232 cable connections

 

 

between supervisory console and

 

 

COMMAND PORT on MultiMux for

 

 

 

correct cable wiring, refer to Cable

 

Diagrams in Appendix

C.

 

 

 

 

 

 

 

Supervisory Console

1. Incorrect command

1.

Verify command modem baud rate is

not communicating

modem baud rate

 

set to 2400 bps, refer to Comm

with command mode

 

Software

User’s Manual.

 

 

 

 

 

 

 

 

 

 

2.

Call Tech Support for assistance,

 

 

refer to Chapter 8

 

 

 

 

 

 

 

Garbage on

1. Incorrect session

1.

Verify session parameters (data bits

Supervisory

parameters

 

of 8, parity none, 1 stop bit), refer to

Console Screen

 

comm

software user’s manual for

 

 

 

parameter settings.

 

 

 

 

 

2.

Call Tech Support for assistance,

 

 

refer to Chapter 8

 

 

 

 

 

 

 

Composite Link down

1. Composite Link cabling

1.

If internal DSU is installed, check

 

 

with CTS, XMT, and

connection.

 

Composite Link cabling for loose

RD LEDs ON

 

 

 

 

 

 

 

 

 

 

2.

If external DSU or modem is

 

 

installed, check RS232C/V.35 cable

 

 

between devices for loose

 

 

 

connection or bent pin.

 

 

 

 

 

 

2. Not receiving data from

1.

Verify that both muxes are powered

 

remote mux

 

ON.

 

 

 

 

 

 

 

 

2.

Verify that both muxes are

 

 

connected to communications line.

 

 

 

 

 

 

 

Table 7-1. Data Troubleshooting Guide(Continued)

 

Condition

 

Possible Cause

 

 

Corrective Action

 

 

Composite link down

2. Not receiving data from

3.

If external modem are used, verify

with CTS, XMT and

remote mux (Continued)

that they are powered ON and

 

 

 

 

RD LEDs ON

 

 

 

connected to the communication

 

 

(Continued)

 

 

 

line and Mux composite link.

 

 

 

 

 

4.

Call Tech Support for assistance,

 

 

 

 

 

 

refer to Chapter 8.

 

 

communication line.

3. Faulty communication line

1. Call phone company and verify

 

 

 

 

 

 

 

 

 

 

 

 

2.

Call Tech Support for assistance,

 

 

refer to Chapter 8.

 

 

 

 

 

 

 

Composite Link down

1. Both Muxes set up for

1.

Remove front cover of both muxes

 

 

with CD, CTS, XMT and

 

down line loading

 

and verify if DIP-Switch 1 is in the

 

 

RCV LEDs ON and

 

 

 

UP (ON) position.

 

 

RD LED ON

 

 

2.

Place DIP-Switch 1 on one of the

 

 

 

 

 

 

 

muxes in the DOWN (OFF) position.

 

 

 

 

 

 

 

 

3.

Call Tech Support for assistance,

 

 

refer to Chapter 8.

 

 

 

 

 

 

 

 

2. Internal DSU speeds

1.

Verify internal DSU speeds with $L

on local and remote

 

command, refer to Chapter 5.

 

 

 

 

 

 

 

muxes do not match.

 

 

 

 

 

Composite link down

1. External modem settings

1.

Verify that external modem is set for

 

 

with CD, CTS and

 

remote mux

 

sync, full duplex and internal clocking.

 

 

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Contents MultiMux Page MultiMux #MMV1600C #MMV3200C Record of Revisions RevisionDescriptionTable of Contents Troubleshooting CommandsOperating Procedures Service, Warranty and Tech SupportTables AboutThisManual Service, Warranty and Tech Support Background Description of Statistical Multiplexing1.1 Statistical Multiplexing Communications Product DescriptionMultiMux MMV1600/3200 Series Block Diagram Page Dual Composite Links System Features Voice/FaxNetworking Dynamic Load BalanceDiagnostics Channel SwitchingCommand Modem Parameter MemoryDynamic Buffering Response Time ControlSynchronous Data Channel AU7USA-18883-DE-N DSU FCC Regulations for Telephone Line InterconnectionDOC Terminal Equipment AU7USA-20328-MD-EComposite Link Specifications Async Data ChannelsSystem Control Internal DSUCompatibility Voice ChannelsElectrical/Physical DtmfConfiguration Description Model DescriptionConfiguration Configuration 1 Local Site Channel Parameters Configuration 1 Remote Site Channel ParametersConfiguration 1 Composite Link Configuration Configuration 2 Composite Link Configuration Remote Site Configuration 3 Local Site Channel Parameters Configuration 3 Remote Site 1 Channel ParametersConfiguration 3 Remote Site 2 Channel Parameters Configuration 4 FXO to FXS Configuration 4 Local Site Voice/Fax Channel ParametersConfiguration 4 Remote Site Voice/Fax Channel Parameters Configuration 5 E&M Configuration 5 Local site Voice/Fax Channel Parameters Configuration 5 Remote Site Voice/Fax Channel ParametersConfiguration 6 FXS to FXS Configuration 6 Local Site Voice/Fax Channel Parameters Configuration 6 Remote Site Voice/Fax Channel ParametersRemote Site Configuration 7 Local Site Voice/Fax Channel Parameters Configuration 7 Remote Site Voice/Fax Channel ParametersConfiguration 8 LAN to LAN Page StepProcedure InstallationProcedureCabling Procedure External Modem/DSU with RS232C InterfaceSync Data Channel Port B only Step ProcedureV.35 Interface Async ChannelComposite Link Cabling Configuration Procedure Supervisory ConsoleCommand Modem Step Procedure Async Channels Step Procedure Voice/Fax ChannelsPage Command Summary Type Command DescriptionATC1B4800P1F1E0 $DSUBCL SNGA..H$DSUACL $DSUASPCommandDescription General Commands#MA Parameters H command menu is as follows General HelpStore New HelpH6 menu is as follows H4 menu is as followsH5 menu is as follows H7 menu is as followsChannel Parameter Commands ENQ/ACK DTRMLA/B/D SB1 SB2$DSUSP Composite Link Speed and Clocking Commands$DSUCL $ MuxacliAdditional Composite Link Commands $MUXBReport Retransmit TimerList Composite #RBxxxxxVoice/Fax Channel Commands Command Level Local Interface WireSilence Suppression ATV1/2LIFXOATV1/2RIFXO Test CommandsATV1/2LIFXSL ATV1/2RIFXSGCommand Modem Commands T11T12 Configuration of Port a Composite Link MultiMuxOperatingProceduresMultiMux Operating Procedures Configuration of Port B Composite LinkConfiguration of Port B Sync Data Voice/Fax Operating Procedures Voice/Fax Operating ProceduresCommand Modem Operating Procedures Command Modem Operating ProceduresCommand Modem Access on Command modem operation and put ImportanceofCompositeStatistics IntroductionTroubleshootingGuide Data Troubleshooting GuideTestCables RD LED on RD OFF Voice/Fax Troubleshooting Guide Voice/fax channelCannot communicate ChannelDeviceTesting Channel Device Testing ProcedureLocal Loop Test #4 DSUandCommunicationsLineTesting DSU and Communications Line Testing ProcedureRemote Digital Loop Test #5 MultiMuxFunctionalTestingProcedures MultiMux Functional Testing ProceduresWatch DOG Test Passed Voice/FaxChannelTesting Voice/Fax Channel Testing ProcedureVOICE/FAX Loopback Test #12 SyncDataChannelTesting Sync Data Channel Testing ProcedureService, Warranty and Tech Support Repair Procedures for International Distributors Ascii Character Code/Hex/Decimal Conversion Chart AppendixASignal Information Negative Positive Appendix BCabling Diagrams Appendix CCommand Port Cables DCE to DTE cablingComposite Link Cabling RJ48 Cabling for Internal DSU Description FXO Description FXS Description RJ45 Spade Lug Wire Color FunctionVoice/Fax Channel Connectors I-V Voice/Fax Channel CableRepeat Command Name DefaultAnswer a LastATO ATH1ATH0 ATQ1Read or ATD5551212RRegister WriteUser Profiles Configuration displaysView Active Store ActiveATX0 ATX1ATX2 Returning to Command ExecutionMode While After DialTable E-1. LED Indicators Indicator DescriptionAppendix E LED Indicators Description Back PanelFCR BPS Modem DIAL-UP Line Connector ON/OFF SwitchPower Connector Command Port TERMINAL/PC ConnectorVOICE/FAX Channel 1 E&M Connector VOICE/FAX Channel 2 FXS ConnectorVOICE/FAX Channel 2 FXO Connector VOICE/FAX Channel 1 FXS ConnectorChannel Board Number of Channels Switch RS232C/V.35 ShuntChannel # Appendix F Flow Control BackgroundOff Printer pacing and Flow Control Glossary of Terms Page Format Page Parameter Page Page Symbols DOC DSUExternal Composite Link FXO FXSLads MultiMux Functional Testing Procedure List Channel Parameters CommandLoad DSU Factory Defaults Command Link ProtocolREN PDNPstn RJ48SStop Bit Command SB1-SB2 Transmit XMT IndicatorStdm Word Length Select Command WL5-8 Voice/Fax Channel Testing ProcedureVoice/Fax Input Level Gain Command Voice/Fax Channels
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