Multi-Tech Systems MMV1600 Channel Board Number of Channels Switch, RS232C/V.35 Shunt, Channel #

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The aggregate board 8-position DIP switch SW-5 is shown in Figure E-3 and the function of each position is as follows:

Switch position 1:

Closed

Initiate Downline Load Off

 

 

Open(UP)

Initiate Downline Load On

 

 

 

(used for downline loading only)

 

Switch position 2:

Closed

External Link A Device Selected

 

 

Open (UP)

Internal Link A DSU Selected

 

Switch Position 3:

Closed

External Link B Device Selected

 

 

Open (UP)

Internal Link B DSU Selected

 

 

Channel #

8

16

24

32

Switch Position 4:

 

C

O

C

O

Switch Position 5:

 

C

C

O

O

 

 

 

C= Closed, O=Open

 

 

Switch Position 6:

Closed

Disable Command Modem Remote Access

 

Open (UP)

Enable Command Modem Remote Access

(default)

 

 

 

 

 

Switch Position 7: Not Used

 

 

 

 

Switch Position 8:

Not Used

 

 

 

 

Channel Board Number of Channels Switch

The Channel board four-position DIP switch determines which channel numbers a particular channel board represents. The first channel board needs to be installed in the third slot from the bottom of the chassis and the 4-position DIP switch on that board has to be set with switch positions SW-1 and SW-2 in the closed position. If the MultiMux has 16 channels, then two channel boards are installed in the chassis and the channel board in the fourth slot from the bottom of the chassis has switch position SW-1 in the open position and SW-2 in the closed position. The function of the switch is as follows:

Channel #

1-8

9-16

17-24

25-32

Switch Position 1:

C

O

C

O

Switch Position 2:

C

C

O

O

 

 

C= Closed, O=Open

 

 

RS232C/V.35 Shunt

An external composite link modem or DSU with either an RS232C/V.24 or a V.35 interface can be connected to a MultiMux MMV1600/3200 series. The aggregate board has four shunt locations on the board, two positions for composite link A and two for composite link B and each link can connect either an RS232C or a V.35 interface. When an external composite link modem with an RS232C/V.24 interface is connected to one of the composite links, the V.24 shunt for that composite link is installed on the aggregate board. When the external composite link modem or DSU has a V.35 interface, the shunt for that composite link has to be moved from the default position (RS232C/V.24) to the V.35 position. The shunts are shown in Figure E-4. The factory default position for the shunts is in the RS232C/V.24 position.

Figure E-4. RS232C/V.35 Shunts

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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 Description of Statistical Multiplexing Background1.1 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 MemoryResponse Time Control Dynamic BufferingSynchronous 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 Remote Site Channel Parameters Configuration 1 Local Site Channel ParametersConfiguration 1 Composite Link Configuration Configuration 2 Composite Link Configuration Remote Site Configuration 3 Remote Site 1 Channel Parameters Configuration 3 Local Site 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 Type Command Description Command SummaryATC1B4800P1F1E0 $DSUBCL SNGA..H$DSUACL $DSUASPGeneral Commands CommandDescription#MA Parameters H command menu is as follows General HelpStore New HelpH6 menu is as follows H4 menu is as followsH5 menu is as follows H7 menu is as followsChannel Parameter Commands ENQ/ACK DTRMLA/B/D SB1 SB2$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 ATV1/2RIFXSGT11 Command Modem CommandsT12 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 IntroductionData Troubleshooting Guide TroubleshootingGuideTestCables RD LED on RD OFF Voice/Fax Troubleshooting Guide Voice/fax channelCannot communicate Channel Device Testing Procedure ChannelDeviceTestingLocal Loop Test #4 DSU and Communications Line Testing Procedure DSUandCommunicationsLineTestingRemote Digital Loop Test #5 MultiMux Functional Testing Procedures MultiMuxFunctionalTestingProceduresWatch DOG Test Passed Voice/Fax Channel Testing Procedure Voice/FaxChannelTestingVOICE/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 ActiveATX1 ATX0ATX2 Returning to Command ExecutionMode While After DialIndicator Description Table E-1. LED IndicatorsAppendix E Back Panel LED Indicators DescriptionFCR 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 ConnectorRS232C/V.35 Shunt Channel Board Number of Channels SwitchChannel # Appendix F Flow Control BackgroundOff Printer pacing and Flow Control Glossary of Terms Page Format Page Parameter Page Page Symbols DOC DSUFXO FXS External Composite LinkLads MultiMux Functional Testing Procedure List Channel Parameters CommandLoad DSU Factory Defaults Command Link ProtocolREN PDNPstn RJ48STransmit XMT Indicator Stop Bit Command SB1-SB2Stdm Word Length Select Command WL5-8 Voice/Fax Channel Testing ProcedureVoice/Fax Input Level Gain Command Voice/Fax Channels
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