Multi-Tech Systems MMV1600 owner manual Additional Composite Link Commands, $Muxb

Page 52

 

When the Sync Data Channel is used and the MultiMux is

providing the clocking,

a word of caution; the Mux Speed command

 

should not be set so high that the Sync Data Channel over runs

 

the composite link. Things to consider are that if a voice/fax board

is installed, voice takes

the highest priority (voice compression is

 

either 9.6K or 16K of the bandwidth), the Sync Data Channel is

the next highest priority and the speed should be set so that the

remaining bandwidth for

all the async

channels does not override

the composite link and there is sufficient bandwidth for the async

 

channels.

 

 

 

 

 

 

 

 

When Port B is selected as a Sync Data Channel, the following

Mux Speed commands

are used:

 

 

 

 

 

 

 

 

 

$MUXBSP9600

$MUXBSP14400

 

 

 

 

 

$MUXBSP19200

$MUXBSP38400

 

 

 

 

 

$MUXBSP56000

$MUXBSP64000

 

 

 

Mux B

The Mux B command causes Composite Link B (Port B) to

operate as a Sync Data Channel

or as a composite link. The

$MUXB

$MUXBSYNC command places Port B in a synchronous data

 

channel mode. The $MUXBCOMP command sets Port B to

operate as a composite link. When port B is in a

sync data

 

channel mode, the mux clocking and speed commands should be

considered.

The MultiMux must be reset for the command to take

affect. The default condition is port B set as Composite Link

B.

 

 

 

 

 

 

 

5.2.4

Additional Composite Link Commands

The Additional Composite Link commands perform the function of a system monitor. In addition to displaying the information available on the MultiMux’s LED display, they also provide additional network statistical information. The purpose of the commands are to allow network monitoring via the supervisory port as an alternative to viewing the LED

indicators. The various status commands and their functions are detailed below:

 

 

 

Clear

The

Clear

Composite

Statistics

command

clears

the

composite

Composite

statistics record without resetting the entire MultiMux unit. The

 

 

 

Statistics

#CA command clears link A composite statistics and #CB clears

 

 

 

 

link B statistics.

 

 

 

 

 

 

 

#C

 

 

 

 

 

 

 

 

 

Load DSU

The Load DSU Factory Defaults command returns the status of

 

 

 

Factory Defaults

the internal DSU to its original (default) status as shipped from

 

the factory. The default

conditions are as follows:

 

 

 

 

 

 

 

 

$F

 

 

Speed:

56K

 

 

 

 

 

 

 

 

Clock:

DDS

 

 

 

 

 

Flush Timer

This command is necessary when the mux is used with Alpha-

Value

Microcomputer and

Wyse Terminals.

The command allows for

the proper use of the function keys as indicated on the keys. The

#FT

#FT0 command clears the function and sets the flush time value

 

to 10 msec and #FT1

sets the flush time value to 20 msec. The

default is #FT0.

 

 

 

 

List

The List Composite Link Configuration command causes the

Composite

MultiMux to

display

its

internal

composite

link

or

sync

data

Link

channel parameters on the supervisory console. The following Configuration

e x a m p l e s

show the configuration of compoiste links A and B or

composite link A and port B as a sync data channel. Composite

$L

link A is only used as a link connection, where as, composite link

 

B (port B) can be used

in a link configuration or as a synchronous

data channel. The 8-position DIP switch SW2 on the Aggregate

 

board configures link A for an external link device in the Closed

 

(Down)

position or

internal DSU in the Open (Up) position. DIP

Switch SW3 configures port B in the same manner when this link

 

is used as a composite link. When port B is used as a sync data

 

channel,

DIP Switch

SW3 has no affect. The first two examples

show the configuration of ports A and B when the MultiMux is

configured as composite links A and B. The next two examples

show

the composite link

A as a link

connection and port B as a

 

synchronous data channel.

 

 

 

 

 

CONFIGURATION OF PORT A: COMPOSITE LINK

 

 

 

 

 

DSU TYPE SPEED

CLOCKING

LOOPBACK

 

 

 

 

 

EXTERNAL

128K

INTERNAL

OFF

 

 

 

 

 

CONFIGURATION OF PORT B: COMPOSITE LINK

DSU TYPE SPEED CLOCKING LOOPBACK

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Contents MultiMux Page MultiMux #MMV1600C #MMV3200C Record of Revisions RevisionDescriptionTable of Contents Commands Operating ProceduresTroubleshooting 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 System Features Voice/Fax NetworkingDual Composite Links Dynamic Load BalanceChannel Switching Command ModemDiagnostics Parameter MemoryResponse Time Control Dynamic BufferingSynchronous Data Channel FCC Regulations for Telephone Line Interconnection DOC Terminal EquipmentAU7USA-18883-DE-N DSU AU7USA-20328-MD-ESpecifications Async Data Channels System ControlComposite Link Internal DSUVoice Channels Electrical/PhysicalCompatibility 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 InstallationProcedure Cabling ProcedureStepProcedure External Modem/DSU with RS232C InterfaceStep Procedure V.35 InterfaceSync Data Channel Port B only Async ChannelComposite Link Cabling Configuration Procedure Supervisory ConsoleCommand Modem Step Procedure Async Channels Step Procedure Voice/Fax ChannelsPage Type Command Description Command SummaryATC1B4800P1F1E0 SNGA..H $DSUACL$DSUBCL $DSUASPGeneral Commands CommandDescription#MA H command menu is as follows General Help Store NewParameters HelpH4 menu is as follows H5 menu is as followsH6 menu is as follows H7 menu is as followsChannel Parameter Commands ENQ/ACK DTRMLA/B/D SB1 SB2Composite Link Speed and Clocking Commands $DSUCL$DSUSP $ MuxacliAdditional Composite Link Commands $MUXBRetransmit Timer List CompositeReport #RBxxxxxVoice/Fax Channel Commands Command Level Wire Silence SuppressionLocal Interface ATV1/2LIFXOTest Commands ATV1/2LIFXSLATV1/2RIFXO ATV1/2RIFXSGT11 Command Modem CommandsT12 MultiMuxOperatingProcedures MultiMux Operating ProceduresConfiguration of Port a Composite Link 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 RJ45 Spade Lug Wire Color Function Voice/Fax Channel ConnectorsDescription FXO Description FXS Description I-V Voice/Fax Channel CableCommand Name Default Answer aRepeat LastATH1 ATH0ATO ATQ1ATD5551212R RegisterRead or WriteConfiguration displays View ActiveUser Profiles Store ActiveATX1 ATX0ATX2 Command Execution Mode WhileReturning to After DialIndicator Description Table E-1. LED IndicatorsAppendix E Back Panel LED Indicators DescriptionFCR ON/OFF Switch Power ConnectorBPS Modem DIAL-UP Line Connector Command Port TERMINAL/PC ConnectorVOICE/FAX Channel 2 FXS Connector VOICE/FAX Channel 2 FXO ConnectorVOICE/FAX Channel 1 E&M 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 List Channel Parameters Command Load DSU Factory Defaults CommandMultiMux Functional Testing Procedure Link ProtocolPDN PstnREN RJ48STransmit XMT Indicator Stop Bit Command SB1-SB2Stdm Voice/Fax Channel Testing Procedure Voice/Fax Input Level Gain CommandWord Length Select Command WL5-8 Voice/Fax Channels
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