Multi-Tech Systems MMV1600 - Manuals

Chapter 5 - Commands 5.1 Introduction .......................................................................................... 5-1 5.2 Command Description ......................................................................... 5-5 5.2.1 General Commands .............................................

Tables 3-1 LED Indicators ..................................................................................... 3-2 4-1 Cabling Procedure ............................................................................... 4-1 4-2 V.35 Interface ..............................................................

1.1 Introduction Congratulations! Your new MultiMux MMV1600/3200 series is one of the finest statistical multiplexers on the market today. The MMV1600/3200 series high speed Priority Statistical Multiplexer (PSM) supports up to 16 or 32 asynchronous input channels, two synchronous composite links or...

Chapter 8- Service, Warranty and Tech Support Chapter 8 provides instructions on getting service for the MultiMux at the factory, a statement of the limited warranty, information about our user bulletin board service, and space for recording information about your multiplexer prior to calling Multi-...

1.3 Background Any data communications environment that has more than one asynchronous line going between common locations can probably benefit by installing a pair of statistical multiplexers (stat muxes). A stat mux performs the function of combining several asynchronous data communication channel...

channels, there is considerable flexibility in the choice of the composite channel protocol and speed. The use of a synchronous protocol like HDLC provides for error detection and retransmission over the composite link. Thus, asynchronous terminals, which have no inherent error-recovery capability, ...

When the voice/fax board is used, connections can be made for either channel 1 or channel 2 or both channels and the types of connections are the same for both channels. If a PBX is being used at both the local and remote locations and an E&M trunk connection is desired, then the E&M connect...

1.5 System Features 1.5.1 Voice/Fax With the addition of the voice/fax board into the MultiMux, you now can have voice and fax traffic along with your normal data communications on the same composite link. The two voice/fax channels provide all the necessary interfaces to access a private branch exc...

DATA DATA CHANNEL DEVICEINITIATED PACING ChannelDevice ChannelDevice Mux Mux MUX INITIATEDFLOW CONTROL Pacing stops the outputof data from the mux Flow control stops the input of data to the mux 1.5.7 Channel Switching A feature of the MultiMux MMV1600/MMV3200 series is its ability to switch channel...

port is also connected to a printer, the reports can provide an easy means of generating data for better network management. 1.5.13 Dynamic Buffering A basic requirement of all muxes is some sort of buffering capability to temporarily hold channel data while it is being assembled into a block. In th...

1.6 FCC Regulations for Telephone Line Interconnection 1. This equipment complies with Part 68 of the FCC rules. On the outside surface of this equipment is a label that contains, among other information, the FCC registration number and ringer equivalence number (REN). If requested, this information...

2.1 Introduction The MultiMux MMV1600/MMV3200 Series is available in two models, a sixteen and thirty-two channel unit with an internal command modem, optional composite link DSUs and two optional voice/fax channels, dial-up capability from a remote location into the command modem and a command port...

2.2 Configuration 1 Configuration 1 is a data-only configuration. This configuration has two Multi-Tech MultiMux MMV1616C/56 which are sixteen channel multiplexers with internal 56K bps composite link DSUs linking sites one and two over a Digital Data Service (DDS) network provided by your telco fac...

2.3 Configuration 2 Configuration 2 is two MultiMux MMV1616C sixteen channel multiplexers with two external Multi-Tech 56K bps Digital Service Units (DSUs) linking the two sites over a Digital Data Service (DDS) network. The RS232C interface on The DSUs is connected to COMPOSITE LINK A EXTERNAL MODE...

2.4 Configuration 3 Configuration 3 (Figure 2-3) is the networking configuration with one MultiMux MMV1616C and two MMV1608 multiplexers with the multiplexer at remote site 1 (Node 2) utilizing dual composite links. This networking configuration allows the local site (Node 1) with the host minicompu...

2.5 Configuration 4 Configuration 4 is the data/voice/fax configuration with two MultiMux MMV1608C/56/V multiplexers with single composite link connecting a minicomputer and the station side of a PBX at the local site to a group of remote terminals and printer on the data part of the network and a t...

commands. Whether the second voice/fax channel is used depends on whether one or two instruments (telephone or fax machine) are connected. The parameters for the remote site can be displayed using the VL (List the Voice/Fax Channel Parameters) command. The voice/fax channel parameters for the remote...

2.6 Configuration 5 Configuration 5 is the data/voice/fax configuration with two MultiMux MMV1608C/56/V multiplexers with single composite link connecting a minicomputer and a PBX trunk at the local site to a group of remote terminals and printer on the data part of the network and a second PBX trun...

Configuration 5 Local site Voice/Fax Channel Parameters LOCAL VOICE/FAX PARAMETERS CHANNEL1 LOCAL VOICE/FAX PARAMTERS CHANNEL 2 PARAMETER STATUS PARAMETER STATUS DESTINATION CHANNEL: 01 DESTINATION CHANNEL: 02 DESTINATION NODE: 01 DESTINATION NODE: 01 LINK A/B/D: A LINK A/B/D: A DIGITIZING RATE: 160...

2.7 Configuration 6 Configuration 6 is the data/voice/fax configuration with two MultiMux MMV1608C/56/V multiplexers with single composite link connecting a minicomputer and a telephone and/or fax machine at the local site to a group of remote terminals and printer on the data part of the network an...

Configuration 6 Local Site Voice/Fax Channel Parameters LOCAL VOICE/FAX PARAMETERS CHANNEL1 LOCAL VOICE/FAX PARAMTERS CHANNEL 2 PARAMETER STATUS PARAMETER STATUS DESTINATION CHANNEL: 01 DESTINATION CHANNEL: 02 DESTINATION NODE: 01 DESTINATION NODE: 01 LINK A/B/D: A LINK A/B/D: A DIGITIZING RATE: 160...

2.8 Configuration 7 Configuration 7 is the data/voice/fax configuration with two MultiMux MMV1608C/56/V multiplexers with single composite link connecting a minicomputer and a PBX E&M trunk at the local site to a group of remote terminals and printer on the data part of the network and a telepho...

Configuration 7 Local Site Voice/Fax Channel Parameters LOCAL VOICE/FAX PARAMETERS CHANNEL1 LOCAL VOICE/FAX PARAMTERS CHANNEL 2 PARAMETER STATUS PARAMETER STATUS DESTINATION CHANNEL: 01 DESTINATION CHANNEL: 02 DESTINATION NODE: 01 DESTINATION NODE: 01 LINK A/B/D: A LINK A/B/D: A DIGITIZING RATE: 160...

2.9 Configuration 8 Configuration 8 is a LAN to LAN configuration with two MultiMux MMV1608C/56/V multiplexers with a single composite link. The muxes are connecting two local area networks (LANs) through the Sync Data Channel, connecting a communications server on one LAN to a minicomputer at a rem...

4.1 Introduction This chapter explains how to unpack and install your MultiMux cabinet. 4.2 Unpacking Unpack and check all the items in the MultiMux shipping list to ensure that you have received the correct options and accessories. MultiMux Components A. MultiMux Cabinet B. Owner's Manual C. Power ...

Sync Data Channel - Port B only If Port B is being connected to a synchronous device, connect the back-to-back cable supplied with your MultiMux to the COMPOSITE LINK B (RS232C/V.35) EXTERNAL MODEM/DSU connector on the back panel of the MultiMux and the other end of the cable to the RS232C connector...

Figure 4-2. Composite Link Cabling 2 Loosen the two pc board chassis lock screws on the back panel. See Figure 4-2.3 Pry up on the two pc board chassis lock screws to unlock the pc boards in the chassis. Temporarily retighten these screws while in the up position. 4 Disconnect the pc board power cab...

3 If you are connecting a supervisory console to the MultiMux, connect a terminal or PC to the COMMAND PORT connector via an appropriate RS232C cable. The PC must be running communications software. Note Any cables connected to the computer should be shielded to reduce interference. 4 Apply power to...

As you change parameters, they will not actually be incorporated into your running system until you execute a Store New Parameters ( &W ) command. Table 4-3. Configuration Procedure Step Procedure Async Channels 14 Execute the parameter display command to display the current channel parameter st...

&T5 Digital Loop &T6 Not Functional &T7 Switch and LEDs &T8 Memory Test &T9 Watch Dog Timer Test &T10 Internal Modem Memory Test &T11 Quick Brown Fox Message Test &T12 Voice/Fax Loopback Test &T13 Sync Data Channel Loopback Test Command A/ Repeat Last Command Mode...

COMMAND EXAMPLE : ATV2LIFXSL- SETS THE LOCAL INTERFACE OF CHANNEL 2 TO FXS WITH LOOP START. FOR HELP ON A SPECIFIC COMMAND, ENTER “ATH” FOLLOWED BY A COMMAND LETTER. 5.2.2 Channel Parameter Commands Channel Off T h e c h a n n e l o f f c o m m a n d t u r n s t h e s e l e c t e d c h a n n e l o f...

Select Local T h e S e l e c t L o c a l P a r a m e t e r s c o m m a n d l i s t s t h e l o c a l c h a n n e l Parameters p a r a m e t e r s a n d e n a b l e s y o u t o u p d a t e t h e m . A f t e r e x e c u t i o n o f t h i s c o m m a n d , a l l o t h e r c o m m a n d s w i l l a c t ...

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 (...

E L E E E L E E T O M S T O M S C R C O T C R C O T A A T T A A T T R N R E R N R E R S L M R S L M I R X C M R D O I R X C M R D O E C M T I C W D E C M T I C W D R V T S T V N E R V T S T V N E # X X # # X X # 5.2.5 Voice/Fax Channel Commands The Voice/Fax Channel commands control the traffic of t...

ATV(1/2)LIFXSL FXS w/Loop Connects a single Start Line telephone/fax with a loop start line to the mux. ATV(1/2)LIE&M(1-5) E&M Interface Connects to E&M trunk (D/W)(2-4) side of a PBX. (1-5) Selects E&M type 1-5. (D/W) Selects E&M dial or wink (2/4) Selects E&M 2 or 4-wire Vo...

Test Mode 7 Test Mode 7 is the Switch and LED operational test. By running your MultiMux in this t e s t m o d e , y o u c a n s w i t c h t h e e i g h t &T7 DIP-switches and verify that they work by corresponding LEDs being lit. Test Mode 8 T e s t M o d e 8 i s t h e N o n - V o l a t i l e M...

6.1 Introduction The following procedures assume that your MultiMuxes (local and remote) have been installed properly (refer to Chapter 4) and the appropriate channel devices have been connected to each channel. 6.2 MultiMux Operating Procedures The MultiMux operating procedures cover entering param...

8To reconfigure a channel based on your actual channel requirements, enter commands as described in Chapter 5 of this manual. To save new parameters, you must again execute an AT&W command. 9If you are downline loading remote parameters, 8-position DIP switch SW1 must be in the UP (open) positio...

DIALTONE/WINK (E&M): N/A DIALTONE/WINK (E&M): N/A WINK TIMER N/A WINK TIMER N/A REMOTE INTERFACE TYPE: FXS REMOTE INTERFACE TYPE: FXS GROUND/LOOP START (FXS): LOOP GROUND/LOOP START (FXS): LOOP 2 OR 4 WIRE (E&M): 2 WIRE 2 OR 4 WIRE (E&M): 2 WIRE DIALTONE/WINK (E&M): N/A DIALTONE/...

Table 6-2. Command Modem Operating Procedures (Cont.) Step Procedure 4You are now communicating with your remote MultiMux. Any commands you now execute will be done by the remote unit. For instance, to request status of the remote system execute the List Channel Parameters Command by entering the fo...

7.1 Introduction The MultiMux is designed to make it easy to operate and maintain. The procedures in this chapter will help isolate any problem you have to a specific component of your network, at which point you will be instructed to call the appropriate personnel or execute commands to adjust oper...

7.3 Test Cables If you are using the MultiMux internal DSU, there are two test cables provided which can be used to help checkout your system (refer to Figure 7-1). The MultiMux Test cable is a special back-to-back composite link test cable that can connect your two MultiMuxes locally before install...

7.5 Channel Device Testing The first step in system testing is to check the operation of the multiplexer network section from each channel device to the MultiMux and back again to the channel device. These procedures will let you see if data from the channel device is passing through the MultiMux pr...

7.6 DSU and Communications Line Testing After determining that the channel-device-to-MultiMux portion of the multiplexer network is operating properly, the next steps are to check the operation of the local DSU, the communications line and the remote DSU. By performing the procedures in Table 7-4, t...

7.7 MultiMux Functional Testing Procedures There are tests available on the MultiMux which check various functions within the MultiMux logic. These tests will assist you in trouble shooting problems which are not related to the composite communications channel or local channel devices. The two tests...

7.8 Voice/Fax Channel Testing The voice/fax loopback test is confined to the MultiMux that the test is being run on. the loopback test communicates between the two channels on the voice/fax board without going outside the MultiMux. An important factor to consider before running this test is to ensur...

7.9 Sync Data Channel Testing The Sync Data Channel Loopback test is used when the MultiMux has configured Port B for the sync data mode. This test simulates a modem or DSU in sync loopback mode. To use this test, configure the synchronous device for loopback test in which port B loops the data back...

Chapter 8 - Service, Warranty and Tech Support Warranty Multi-Tech Systems, Inc., (hereafter “MTS”) warrants that its products will be free from defects in material or workman- ship for a period of two, five, or ten years (depending on model) from date of purchase, or if proof of purchase is not pro...

Extended two-year overnight replacement service agreements are available for selected products. Please call MTS at (888) 288-5470, extension 5308 or visit our web site at http://www.multitech.com/programs/orc/ for details on rates and coverage’s. Please direct your questions regarding technical matt...

Appendix A ASCII Character Code/Hex/Decimal Conversion Chart CTRL CODE HEX DEC CODE HEX DEC CODE HEX DEC CODE HEX DEC @ NUL 00 0 SP 20 32 @ 40 64 60 96 A SOH 01 1 ! 21 33 A 41 65 a 61 97 B STX 02 2 “ 22 34 B 42 66 b 62 98 C ETX 03 3 # 23 35 C 43 67 c 63 99 D EOT 04 4 $ 24 36 D 44 68 d 64 100 E ENQ 0...

Appendix B RS232C Interface Specification The MultiMux RS232C interface circuits have been designed to meet the electrical specifications given in the EIA (Electronic Industries Association) RS232C and CCITT (Consultative Committee of International Telegraph and Telephone) standards. All signals gen...

Appendix C Cabling Diagrams Channel Cable DCE to Channel cabling (with EIA pass Thru) PIN NO. 1 2 3 4 5 6 7 8 20 22 25 1 2 3 4 5 6 7 8 20 22 25 ToMultiMuxChannelConnector ToDCEDevice (CommunicationDevicei.e. Modem) CHASSIS GROUND (AA) TRANSMIT DATA (BA) RECEIVE DATA (BB) REQUEST TO SEND (CA) CLEAR T...

Command Port Cables DCE to DCE cabling PIN NO. 1 2 3 4 5 6 7 8 20 22 25 1 2 3 4 5 6 7 8 20 22 25 ToMultiMuxCommandPortConnector ToDCEDevice (CommunicationDevicei.e. Modem) CHASSIS GROUND (AA) TRANSMIT DATA (BA) RECEIVE DATA (BB) DATA SET READY (CC) SIGNAL GROUND (AB) DATA TERMINAL READY (CD) PIN NO....

PIN NO. 1 2 3 4 5 7 8 15 17 20 25 1 2 3 4 5 7 8 15 17 20 25 ToExternalSynchronousModem/DSUConnector ToMultiMuxExternalModem/DSUConnector CHASSIS GROUND (AA) TRANSMIT DATA (BA) RECEIVE DATA (BB) REQUEST TO SEND (CA) CLEAR TO SEND (CB) SIGNAL GROUND (AB) CARRIER DETECT (CF) TRANSMIT CLOCK (DB) RECEIVE...

25-PIN CONNECTOR (FEMALE) 12345768151720 24 13254720 24 681517 Frame GroundTransmit DataReceive DataRequest To SendClear To Send Signal GroundData Set ReadyCarrier DetectTransmit ClockReceive ClockData Terminal Ready Internal Clock 25-PIN CONNECTOR (FEMALE) Frame Ground (AA)Receive Data (BB)Transmit...

E&M (I-V) Voice/Fax Channel Cable White-Green Green-White White-Orange White-Blue Blue-White Orange-White Brown-WhiteWhite-Brown M InputE OutputT1 4-Wire OutputR 4-Wire Input, 2-WireT 4-Wire Input, 2-WireR1 4-Wire OutputSG (Signal Ground) OutputSB (Signal Battery) Output E&M CABLE RJ45 Plug ...

Appendix D Command Modem Commands Answer A The Answer Mode forces the command modem into answer mode. Entering ATA when in the Command mode will immediately bring the command modem off-hook, out of the command mode and into the On-Line Answer mode, and cause it to retransmit its carrier signal over ...

Appendix E Indicators/Switches and Connectors Indicators Figure E-1. MultiMux Front Panel Table E-1. LED Indicators Indicator Description Channel XMT/RCV The Channel Transmit (XMT) and Receive (RCV) indicators show the activity level on each channel. MultiMux MMV1608 uses Channel One through Channel...

FCR The Flow Control Received (FCR) indicator lights when the remote MultiMux's buffers are full and the local MultiMux has been told to stop sending data. The FCR indicator will only come On when flow control is active. The FCR indicator lights for both internal DSU and an external link device. RD ...

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 Op...

Appendix F Flow Control Background Flow control refers to the techniques used by computer devices and multiplexers to stop and restart the flow of data from each other. Flow control is necessary so that a channel device does not receive more data than it can handle or vice versa (the MultiMux receiv...

In the example below, the flow control on the minicomputer works as follows: 12345678 Mux Link Channel Mini- Computer A. B. C. D. mux processdata to the link mux buffers full mux buffers empty mux processes data to the link Data Flow Control off Flow Control on Data A. Data volume from the mini for ...

Printer pacing and Flow Control The example below shows how Pacing and Flow Control work on a printer. (Host) Mini- Computer Channel MUX Link MUX Channel (Remote) Printer 1 1 A. B. C. D. E. F. G. H. Printer PrintsDataPrint BufferFull Print Data Pace off Flow Control off Flow Control off Flow Control...

Glossary of Terms A AC (Alternating Current): A power source whose signal crosses a reference voltage (usually called ground or zero). Alternating between a maximum and minimum voltage, AC may also be referred to as a bipolar signal. Contrast with DC. ACK (ACKnowledgement code) (pronounced "ack&...

Device driver: Software that controls how a computer communicates with a device, such as a printer or mouse. Digital signal: Digital devices, such as terminals and computers, transmit data as a series of electrical pulses which have discrete jumps rather than gradual changes. Digital Transmission: A...

Index Symbols &W Command ....................................... 5-5 2400 BPS MODEM DIAL-UP LINE Connector 3-5, 4-5 25-pin Female D Connectors ............... 1-17 4-Position DIP Switch .......................... 3-10 8-Position DIP Switch SW1 .................... 6-4 A Additional Composite Link...

...................................................... 4-1, C-5 E&M to E&M .......................................... 2-1 E&M Wink .............................................. 2-1 Ear and Mouth ....................................... 1-6 Ear and Mouth (E&M) Indicator .................