Multi-Tech Systems MMV1600 owner manual Command Level

Page 55

2

to transfer data using the dynamic link selection which allows the

MultiMux to

select the least busy link.

 

 

 

 

 

 

 

 

 

Voice/Fax Channel

The Voice/Fax Channel Digitizing Rate command selects from

 

 

 

Digitizing Rate

two digitized or compressed rates 9600 or 16000 bps. At the

 

 

 

 

16000 bps rate, the voice transmission will be clearer. The

 

 

 

V(1/2)DR

V1DR9600 places voice/fax channel 1 at a digitized or compressed

 

rate of 9.6K bps. Note,

with silence suppression enabled, less

 

than 9600 bps of the link is used. The default digitizing rate is

 

16000 bps.

 

 

 

 

 

 

 

 

 

 

Voice/Fax Channel

The Voice/Fax Channel Input Level Gain command selects the

 

 

 

Input Level Gain

gain of the input voice/fax signal. As the input level gain is

 

increased, the volume

level

increases. The input level gain V(1/2)IL

ranges from

-6 to 18db in increments of 1db with 0 db producing

 

no gain.

 

 

 

 

 

 

 

 

 

 

 

COMMAND

LEVEL

COMMAND

LEVEL

 

 

 

 

 

V(1/2)IL0

-6db

 

V(1/2)IL1

-5db

 

 

V(1/2)IL2

-4db

 

V(1/2)IL3

 

-3db

 

 

V(1/2)IL4

-2db

V(1/2)IL5

 

-1db

 

V(1/2)IL6

0db

 

V(1/2)IL7

1db

 

 

V(1/2)IL8

2db

 

V(1/2)IL9

3db

 

 

V(1/2)IL10

4db

 

V(1/2)IL11

5db

 

 

 

 

 

 

 

 

 

V(1/2)IL12

6db

 

V(1/2)IL13

7db

 

 

V(1/2)IL14

8db

 

V(1/2)IL15

9db

 

 

V(1/2)IL16

10db

 

V(1/2)IL17

 

11db

 

V(1/2)IL18

12db

V(1/2)IL19

13db

 

 

 

V(1/2)IL20

14db

 

V(1/2)IL21

15db

 

 

V(1/2)IL22

 

16db

V(1/2)IL23

17db

 

 

 

 

 

 

 

 

V(1/2)IL24

18db

 

 

 

 

 

 

 

 

 

When the input level on the local mux is adjusted, the volume

 

level heard on

the

remote mux will change accordingly. The input

 

level gain needs to be set on the transmitting mux (talking).

This

will increase the volume that the person at the receiving mux

hears.

To

increase the input level gain at the receiving mux will

 

have no affect on what this person hears.

 

MUX PDN

IL

Talk

Increase

2db

Hear

Produces 2db

Louder Volume

MUX

Hear

2db Louder

IL

Talk

Increase

2db

Note

For the best results, increase or decrease both the local output level and remote input level settings by a small amount to change the volume level heard at the local voice/fax channel.

The default settings per configuration are as follows:

 

Local

Remote

Configuration

IL

OL

IL

OL

FXS to FXO

6

9

5

2

FXS to FXS

3

12

3

12

E&M to E&M

5

14

5

14

 

(4-Wire)

 

 

 

 

 

 

 

 

 

 

Voice/Fax Channel The Voice/Fax Channel Output Level Attentuation command

 

 

 

Output Level Atten. selects the output signal level properties of the voice/fax

transmission.

As the

output level attentuation increases, the

V(1/2)OL volume level decreases. The signal level properties are

 

 

incremented in decible levels of 0.75db. Command V(1/2)OL0 is

no

signal

level

attentuation for the 2-wire and 10db for the 4-wire.

 

 

 

 

 

 

 

COMMAND

LEVEL

 

 

COMMAND

LEVEL

 

 

 

 

 

 

2-Wire 4-Wire

 

2-Wire

4-Wire

 

 

 

 

V(1/2)OL0

0db

10db

 

V(1/2)OL1

-0.75db

9.25db

V(1/2)OL2

-

1.5db

8.5db

V(1/2)OL3-2.25db

7.75db

 

 

V(1/2)OL4

-3.0db

7.0db

V(1/

2)OL5

-3.75db

6.25db

 

 

 

 

V(1/2)OL6

-4.5db 5.5db V(1/2)OL7

-5.25db

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Contents MultiMux Page Record of Revisions RevisionDescription MultiMux #MMV1600C #MMV3200CTable of Contents Service, Warranty and Tech Support CommandsOperating Procedures TroubleshootingTables AboutThisManual Service, Warranty and Tech Support Description of Statistical Multiplexing Background1.1 Statistical Multiplexing Product Description CommunicationsMultiMux MMV1600/3200 Series Block Diagram Page Dynamic Load Balance System Features Voice/FaxNetworking Dual Composite LinksParameter Memory Channel SwitchingCommand Modem DiagnosticsResponse Time Control Dynamic BufferingSynchronous Data Channel AU7USA-20328-MD-E FCC Regulations for Telephone Line InterconnectionDOC Terminal Equipment AU7USA-18883-DE-N DSUInternal DSU Specifications Async Data ChannelsSystem Control Composite LinkDtmf Voice ChannelsElectrical/Physical CompatibilityModel Description Configuration 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 Local Site Voice/Fax Channel Parameters Configuration 4 FXO to FXSConfiguration 4 Remote Site Voice/Fax Channel Parameters Configuration 5 E&M Configuration 5 Remote Site Voice/Fax Channel Parameters Configuration 5 Local site Voice/Fax Channel ParametersConfiguration 6 FXS to FXS Configuration 6 Remote Site Voice/Fax Channel Parameters Configuration 6 Local Site Voice/Fax Channel ParametersRemote Site Configuration 7 Remote Site Voice/Fax Channel Parameters Configuration 7 Local Site Voice/Fax Channel ParametersConfiguration 8 LAN to LAN Page External Modem/DSU with RS232C Interface InstallationProcedureCabling Procedure StepProcedureAsync Channel Step ProcedureV.35 Interface Sync Data Channel Port B onlyComposite Link Cabling Supervisory Console Configuration ProcedureCommand Modem Step Procedure Voice/Fax Channels Step Procedure Async ChannelsPage Type Command Description Command SummaryATC1B4800P1F1E0 $DSUASP SNGA..H$DSUACL $DSUBCLGeneral Commands CommandDescription#MA Help H command menu is as follows General HelpStore New ParametersH7 menu is as follows H4 menu is as followsH5 menu is as follows H6 menu is as followsChannel Parameter Commands DTR ENQ/ACKMLA/B/D SB2 SB1$ Muxacli Composite Link Speed and Clocking Commands$DSUCL $DSUSP$MUXB Additional Composite Link Commands#RBxxxxx Retransmit TimerList Composite ReportVoice/Fax Channel Commands Command Level ATV1/2LIFXO WireSilence Suppression Local InterfaceATV1/2RIFXSG Test CommandsATV1/2LIFXSL ATV1/2RIFXOT11 Command Modem CommandsT12 Configuration of Port B Composite Link MultiMuxOperatingProceduresMultiMux Operating Procedures Configuration of Port a 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 Introduction ImportanceofCompositeStatisticsData Troubleshooting Guide TroubleshootingGuideTestCables RD LED on RD OFF Voice/fax channel Voice/Fax Troubleshooting GuideCannot 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 Sync Data Channel Testing Procedure SyncDataChannelTestingService, Warranty and Tech Support Repair Procedures for International Distributors AppendixA Ascii Character Code/Hex/Decimal Conversion ChartAppendix B Signal Information Negative PositiveAppendix C Cabling DiagramsDCE to DTE cabling Command Port CablesComposite Link Cabling RJ48 Cabling for Internal DSU I-V Voice/Fax Channel Cable RJ45 Spade Lug Wire Color FunctionVoice/Fax Channel Connectors Description FXO Description FXS DescriptionLast Command Name DefaultAnswer a RepeatATQ1 ATH1ATH0 ATOWrite ATD5551212RRegister Read orStore Active Configuration displaysView Active User ProfilesATX1 ATX0ATX2 After Dial Command ExecutionMode While Returning toIndicator Description Table E-1. LED IndicatorsAppendix E Back Panel LED Indicators DescriptionFCR Command Port TERMINAL/PC Connector ON/OFF SwitchPower Connector BPS Modem DIAL-UP Line ConnectorVOICE/FAX Channel 1 FXS Connector VOICE/FAX Channel 2 FXS ConnectorVOICE/FAX Channel 2 FXO Connector VOICE/FAX Channel 1 E&M ConnectorRS232C/V.35 Shunt Channel Board Number of Channels SwitchChannel # Flow Control Background Appendix FOff Printer pacing and Flow Control Glossary of Terms Page Format Page Parameter Page Page Symbols DSU DOCFXO FXS External Composite LinkLads Link Protocol List Channel Parameters CommandLoad DSU Factory Defaults Command MultiMux Functional Testing ProcedureRJ48S PDNPstn RENTransmit XMT Indicator Stop Bit Command SB1-SB2Stdm Voice/Fax Channels Voice/Fax Channel Testing ProcedureVoice/Fax Input Level Gain Command Word Length Select Command WL5-8
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