Multi-Tech Systems MMV1600 owner manual Mla/B/D

Page 49

Xon/Xoff

 

 

Flow

 

 

 

Control

 

 

 

and

 

 

Pacing,

 

 

you

 

 

 

will

F11-F12

 

 

end up with Xon/Xoff Pacing, and with CTS Flow Control plus

 

 

 

Pacing, data flow will

be controlled by the presence of the DTR

 

 

 

(pin 20) signal on the RS232 interface. F11 turns on Inverted

 

 

DTR so that a high signal stops data flow and a low starts

 

 

 

 

 

 

data flow. F12 turns off Inverted DTR so

that it acts normal

 

 

(high on and low off). If Flow Control is off, Pacing cannot be

 

 

 

turned on. If

Pacing is off, inverted DTR cannot be turned on.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Xoff/First

 

 

F13

 

is

a

special

 

pacing

command

 

that

is

called

X/off

 

First

Char.

 

 

 

Character

pacing.

Selecting

F13

causes

the

MultiMux

to

 

stop

 

 

 

 

 

data

 

flow

to

 

the

channel

device

 

upon

receipt

of

a

Xoff

Character.

F13-F14

 

 

The next character from the channel device will start data (it does

 

 

not have to be an Xon

Character). F14 will turn off this feature.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Identification

 

The

 

Identification

commands

identify the type of MultiMux. This

Commands

 

 

information

 

is

 

valuable

 

when

 

communicating

 

with

Multi-Tech's

 

 

 

 

 

Technical Support personnel about your unit or its performance.

 

I0-2

 

The

l0

command

identifies the product. The I1 command

 

 

 

 

 

 

indicates the Aggregate board firmware version. The I2

 

 

 

 

 

command indicates the Voice/Fax firmware version.

 

 

 

 

 

 

 

 

 

 

 

List Channel

 

 

The List Channel Parameters command causes the MultiMux

 

 

 

 

 

 

 

 

 

Parameters

 

 

to display the condition of the parameters for each channel on the

 

 

 

 

 

 

 

 

 

 

 

 

 

system’s

supervisory

 

console

as

 

shown

in

the

following

example.

L-L0

 

 

 

To

 

display

the

parameters

for

an

individual channel,

say

channel

L1-L32

 

 

three, you would enter ATL3 and hit your Return key. To display

 

 

 

 

 

 

 

 

 

 

 

 

 

 

the parameters for all of the channels, enter ATL0 and then hit

 

 

 

 

 

 

 

 

 

 

 

 

 

 

your Return key.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Local Channel Parameters/ Node # 01

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

STP

FLOW

ENQ/

 

 

 

PASS PASS DEST DEST LINK

 

 

 

 

 

 

 

 

 

 

CHN

SPD WD BIT PAR

CTRL

ACK ECHO PACE

 

EIA

XON

CHN NODE A/B

 

 

 

 

 

 

 

 

 

 

 

01

19200

8

1

NONE

 

CTS

OFF

OFF

OFF

 

OFF

 

OFF

01

 

02

A

 

 

 

 

 

 

 

 

 

 

02

19200

8

1

NONE

 

CTS

OFF

OFF

OFF

 

OFF

 

OFF

02

 

02

A

 

 

 

 

 

 

 

 

 

 

03

19200

8

1

NONE

 

CTS

OFF

OFF

OFF

 

OFF

 

OFF

03

 

02

A

 

 

 

 

 

 

 

 

 

 

04

19200

8

1

NONE

 

CTS

OFF

OFF

OFF

 

OFF

 

OFF

04

 

02

A

 

 

 

 

 

 

 

 

 

 

05

19200

8

1

NONE

 

CTS

OFF

OFF

OFF

 

OFF

 

OFF

05

 

02

A

 

 

 

 

 

 

 

 

 

 

06

19200

8

1

NONE

 

CTS

OFF

OFF

OFF

 

OFF

 

OFF

06

 

02

A

 

 

 

 

 

 

 

 

 

 

07

19200

8

1

NONE

 

CTS

OFF

OFF

OFF

 

OFF

 

OFF

07

 

02

A

 

 

 

 

 

 

 

 

 

 

08

19200

8

1

NONE

 

CTS

OFF

OFF

OFF

 

OFF

 

OFF

08

 

02

A

 

 

 

 

 

 

 

 

 

 

09

19200

8

1

NONE

 

CTS

OFF

OFF

OFF

 

OFF

 

OFF

09

 

02

A

 

 

 

 

 

 

 

 

 

 

10

19200

8

1

NONE

 

CTS

OFF

OFF

OFF

 

OFF

 

OFF

10

 

02

A

 

 

 

 

 

 

 

 

 

 

11

19200

8

1

NONE

 

CTS

OFF

OFF

OFF

 

OFF

 

OFF

11

 

02

A

 

 

 

 

 

 

 

 

 

 

12

19200

8

1

NONE

 

CTS

OFF

OFF

OFF

 

OFF

 

OFF

12

 

02

A

 

 

 

 

 

 

 

 

 

 

13

19200

8

1

NONE

 

CTS

OFF

OFF

OFF

 

OFF

 

OFF

13

 

02

A

 

 

 

 

 

 

 

 

 

 

14

19200

8

1

NONE

 

CTS

OFF

OFF

OFF

 

OFF

 

OFF

14

 

02

A

 

 

 

 

 

 

 

 

 

 

15

19200

8

1

NONE

 

CTS

OFF

OFF

OFF

 

OFF

 

OFF

15

 

02

A

 

 

 

 

 

 

 

 

 

 

16

19200

8

1

NONE

 

CTS

OFF

OFF

OFF

 

OFF

 

OFF

16

 

02

A

 

 

 

 

 

 

 

 

 

 

OK

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Modem Link

 

 

This parameter specifies which link modem/DSU (link A, link B

Used

 

or

Dynamic)

 

each

channel will use for data communications.

 

 

 

Links should be load balanced so that heavy traffic channels are

MLA/B/D

 

 

not all using the same link. The MLD command selects dynamic

 

 

 

channel

selection

which permits the MultiMux to pick the least

 

 

 

busy link per channel. When one channel is dynamic, all must be

 

 

 

 

 

dynamic. Works only in point-to-point networks and both muxes

 

 

 

must be set to MLD.

Parity

 

 

 

The

 

Parity

Select

commands

set

the

parity

of

 

MultiMux

opera-

Select

 

 

 

tions.

Under

 

normal

 

operations

 

(default

conditions)

parity

is

 

off

 

 

 

 

 

and

 

word

length

is

set

at

 

eight

bits.

Since

the

MultiMux

 

is

P0-2

 

 

 

intended to be transparent to channel device operation, this

 

 

 

combination will

pass

parity information to the channel devices.

 

 

 

The P0 command turns parity off, P1 sets odd parity and P2 sets

 

 

 

 

 

it at even.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Response

 

 

The

 

Response

Time

 

Priority

command

determines

 

how

long

 

 

the

Time

 

 

 

mux

 

will

wait

to

send

data

from

channel

devices

 

relative

to

 

each

Priority

 

 

other. An R0 setting is the

shortest

and

R3

the

longest.

 

The

 

 

 

 

 

Response

 

Time

 

 

Priority

commands

 

ensure

 

that

channel

R

 

 

 

operations which require heavy data transfers, such as program

 

 

 

transmissions

or

print

Page 48 Page 50
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Page 48 Page 50
Contents MultiMux Page Record of Revisions RevisionDescription MultiMux #MMV1600C #MMV3200CTable of Contents Operating Procedures CommandsTroubleshooting Service, Warranty and Tech SupportTables AboutThisManual Service, Warranty and Tech Support Description of Statistical Multiplexing Background1.1 Statistical Multiplexing Product Description CommunicationsMultiMux MMV1600/3200 Series Block Diagram Page Networking System Features Voice/FaxDual Composite Links Dynamic Load BalanceCommand Modem Channel SwitchingDiagnostics Parameter MemoryResponse Time Control Dynamic BufferingSynchronous Data Channel DOC Terminal Equipment FCC Regulations for Telephone Line InterconnectionAU7USA-18883-DE-N DSU AU7USA-20328-MD-ESystem Control Specifications Async Data ChannelsComposite Link Internal DSUElectrical/Physical Voice ChannelsCompatibility DtmfModel 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 Cabling Procedure InstallationProcedureStepProcedure External Modem/DSU with RS232C InterfaceV.35 Interface Step ProcedureSync Data Channel Port B only Async ChannelComposite Link Cabling Supervisory Console Configuration ProcedureCommand Modem Step Procedure Voice/Fax Channels Step Procedure Async ChannelsPage Type Command Description Command SummaryATC1B4800P1F1E0 $DSUACL SNGA..H$DSUBCL $DSUASPGeneral Commands CommandDescription#MA Store New H command menu is as follows General HelpParameters HelpH5 menu is as follows H4 menu is as followsH6 menu is as follows H7 menu is as followsChannel Parameter Commands DTR ENQ/ACKMLA/B/D SB2 SB1$DSUCL Composite Link Speed and Clocking Commands$DSUSP $ Muxacli$MUXB Additional Composite Link CommandsList Composite Retransmit TimerReport #RBxxxxxVoice/Fax Channel Commands Command Level Silence Suppression WireLocal Interface ATV1/2LIFXOATV1/2LIFXSL Test CommandsATV1/2RIFXO ATV1/2RIFXSGT11 Command Modem CommandsT12 MultiMux Operating Procedures MultiMuxOperatingProceduresConfiguration 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 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 Voice/Fax Channel Connectors RJ45 Spade Lug Wire Color FunctionDescription FXO Description FXS Description I-V Voice/Fax Channel CableAnswer a Command Name DefaultRepeat LastATH0 ATH1ATO ATQ1Register ATD5551212RRead or WriteView Active Configuration displaysUser Profiles Store ActiveATX1 ATX0ATX2 Mode While Command ExecutionReturning to After DialIndicator Description Table E-1. LED IndicatorsAppendix E Back Panel LED Indicators DescriptionFCR Power Connector ON/OFF SwitchBPS Modem DIAL-UP Line Connector Command Port TERMINAL/PC ConnectorVOICE/FAX Channel 2 FXO Connector VOICE/FAX Channel 2 FXS ConnectorVOICE/FAX Channel 1 E&M Connector VOICE/FAX Channel 1 FXS 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 Load DSU Factory Defaults Command List Channel Parameters CommandMultiMux Functional Testing Procedure Link ProtocolPstn PDNREN RJ48STransmit XMT Indicator Stop Bit Command SB1-SB2Stdm Voice/Fax Input Level Gain Command Voice/Fax Channel Testing ProcedureWord Length Select Command WL5-8 Voice/Fax Channels
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