FECO COMMS # 40

FECO: COMMS # 40.
MODIFICATION NO: N/A
PRODUCT: MULTITECH MT1432 MODEM
SUB-ASSEMBLY: SYNCHRONOUS LEASED LINE ONLY
ESTIMATED MAN HOURS: N/A
CLASS OF CHANGE: INFORMATIONAL
REASON FOR CHANGE: TO LIST THE CONFIGURATION INFORMATION FOR THE MT1432 MODEM WHEN USED SYNCHRONOUSLY ON A LEASED LINE.
  1. Feco comms # 35 lists the setup and configuration for the multitech mt1432l modem when used asynchronously on a dial up line.

    2. This feco lists the setup and configuration for the 1432 when used as a synchronous modem on a 2 or 4 wire leased line.

    E.g. when connecting together two multiplexors on an analogue leased line.

  2. Configuration
    1. Initial dip switch settings for use during set up only

      2. Sw1 up sw9 down

      Sw2 up sw10 up

      Sw3 down sw11 down

      Sw4 up sw12 down

      Sw5 up sw13 down

      Sw6 up sw14 up

      Sw7 down sw15 up

      Sw8 down sw16 down

      (tech serv ref f02)

       

    2. Connect a terminal set to 9600 bps, 8 bits, no parity, 1 stop bit; to the modem by a cable type h.
    3. Enter atl5 <cr> and atl7<cr> this displays modem configuration.
    4. Enter at&f <cr> to set back to factory defaults.
    5. Enter at#ao&e7#xo$mb14400$sb9600q1%e5&m1&w <cr>
    6. Enter atl5 <cr> and atl7 <cr> (this displays modem configuration)

      7. Check configuration is as per para 2.5 above.

    7. Switch power off and reset switch settings
    8. Final dip switch settings

      9. Sw1 up sw9 down

      Sw2 up sw10 down

      Sw3 down sw11 down

      Sw4 up sw12 up

      Sw5 down host end sw13 down 9600

      Sw5 up peripheral end sw14 up 9600

      Sw6 up sw15 up

      Sw7 down sw16 up 2 wire

      Sw8 down sw16 down 4 wire

    9. The modem is set up ready for use.
  3. Dip switch summary

    4. Dip-switch condition effect

    Synchronous mode

    #1 *up dtr dependent on interface

    Down dtr forced on at all times

    #2 *up sdlc mode on

    Down bsc mode on

    #3 up command mode response off

    *down command mode response on

    #4 *up as/400 mode off

    Down as/400 mode on

    #5 *up answer mode on

    Down originate mode on

     

    #6 *up slave clocking off

    Down slave clocking on

    #7 up rts dependent on interface

    *down rts forced on at all times

    #8 up command mode off

    *down command mode on

    #9 up local digital loopback on

    *down remote digital loopback off

    #10 *up dial-up operation

    Down leased line operation

    #11 up external clock selected

    *down internal clock selected

    #12 up synchronous mode on

    *down asynchronous mode on

    #13/#14 up 14.4k bps operation

    Up*

    #13/#14 down 9600 bps operation

    Up

    #13/#14 up 4800 bps operation

    Down

    #13/#14 down 2400 bps operation

    Down

    #15 up* cd/dsr from interface (sync&async)

    #15 down cd/dsr forced on

    #16 up 2-wire leased line (sync & async)

    #16 down 4-wire leased line

  4. Set up commands summary

    5. #a0 answer mode starting speed 14400bps downwards to 300

    &e7 xon/xoff pass-through.

    #x0 dipsw11 controls int/ext clocking

    $mb14400 max transmission rate composite port

    $sb9600 serial port band rate

    Q1 disable result codes

    %e5 ok response to + + +

    &m1 async in command mode sync on line

    &w write to nvm

  5. For two wire leased line the output is on pins 1 & 6 of the rj12 connector on the rear of the modem.

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