
CONTROLWARE COMMUNICATIONS SYSTEMS, INC.

E-LINK IV

Card Type         Modem (synchronous/asynchronous)
Chipset           Unidentified
Maximum Data Rate 128Kbps (64Kbps for V.24)
Data Modulation   Proprietary
Data Bus          Serial

[Image]

                                CONNECTIONS

       Function           Label             Function              Label

  RESET button             BT1      DC power in                    CN9

  TEST button              BT2      Header to daughterboard        J1
                                    J3

  Analog Loopback Test     BT3      Header to interface board      J2
  button                            J4, J5, or J6

  TEST button              BT4      Header to main board J1        J3

  Line out via ADO-8       CN1      Header to main board J2        J4
  jack

  V.24 serial port         CN2      Header to main board J2        J5

  DC power in              CN3      Header to main board J2        J6

  Line out via ADO-8       CN4      1A fuse                        F1
  jack

  V.35 serial port         CN5      1A fuse                        F2

  DC power in              CN6      800mA fuse                     F3

  Line out via ADO-8       CN7      800mA fuse                     F4
  jack

  X.21 serial port         CN8      800mA fuse                     F5

            Note: The V.24 daughterboard has a maximum line speed of
            64Kbps.

                        USER CONFIGURABLE SETTINGS

                   Setting                      Label        Position

  Serial interface PS2 signal has no effect      S1/1           Off

  Serial interface PS2 signal generates          S1/1           On
  remote digital loopback test

  Serial interface PS3 signal has no effect      S1/2           Off

  Serial interface PS3 signal generates          S1/2           On
  analog loopback test

  Factory configured - do not alter              S1/3           Off

  Factory configured - do not alter              S1/4           Off

  Modem ignores RTS after 10 seconds of          S1/5           On
  synchronization loss

  Modem does not ignore RTS after 10 seconds     S1/5           Off
  of synchronization loss

  Loopback tests automatically disabled          S1/6           On
  after 20 seconds

  Loopback tests not disabled after 20           S1/6           Off
  seconds

  Factory configured - do not alter              S1/7           On

  Factory configured - do not alter              S1/8           Off

  S2 TO M2 SIGNAL DELAY AND M5 SIGNAL CONFIGURATION

      Delay           M5 Signal            SC1

      20 mS           Constant         Position 3

      20 mS           Switched         Position 7

      30 mS           Constant         Position 2

      30 mS           Switched         Position 6

      60 mS           Constant         Position 1

      60 mS           Switched         Position 5

     Constant         Constant         Position A

     Constant         Switched         Position F

                          M1 SIGNAL CONFIGURATION

                     Setting                                 SC2

                   Forced high                           Position 0

          Dependent on remote S1 signal                  Position 1

                Dependent on line                        Position 2

      Dependent on remote S1 signal and line             Position 3

                Dependent on test                        Position 4

      Dependent on remote S1 signal and test             Position 5

            Dependent on line and test                   Position 6

  Dependent on remote S1 signal, line, and test          Position 7

           Dependent on local S1 signal                  Position 8

     Dependent on remote and local S1 signals            Position 9

      Dependent on line and local S1 signal              Position A

   Dependent on remote and local S1 signals and          Position B
                       line

      Dependent on test and local S1 signal              Position C

   Dependent on remote and local S1 signals and          Position D
                       test

   Dependent on line, test, and local S1 signal          Position E

  Dependent on remote and local S1 signals, line,        Position F
                     and test

            Note: This switch has no function when the X.21 interface
            board is installed.

         CLOCK SOURCE SELECTION

    Source        Type          SC3

   External      Master      Position 1

  Clock loop      Slave      Position 2

   Internal      Master      Position 3

               LINE SPEED SELECTION

   Synchronous     Asynchronous         SC4

     4800bps           N/A           Position 6

     8000bps           N/A           Position 7

     9600bps           N/A           Position 8

     16Kbps            N/A           Position 9

    19.2Kbps           N/A           Position A

     32Kbps            N/A           Position B

    38.4Kbps           N/A           Position C

     64Kbps        0 to 9600bps      Position D

    76.8Kbps           N/A           Position E

     128Kbps      0 to 19.2Kbps      Position F

  LOOPBACK PATTERN SELECTION

    Setting          SC5

   Pattern 0      Position 0

   Pattern 1      Position 1

   Pattern 2      Position 2

   Pattern 3      Position 3

                             DIAGNOSTIC LED(S)

    LED         Color          Status                 Condition

    ERR          Red             On           Error condition detected

    ERR          Red          Blinking        Error condition detected

    ERR          Red             Off        Error condition not detected

     ON         Green            On                  Power is on

     ON         Green            Off                Power is off

    TXD         Green         Blinking       Modem is transmitting data

    TXD         Green            Off          Modem is not transmitting
                                                        data

    RXD         Yellow        Blinking         Modem is receiving data

    RXD         Yellow           Off         Modem is not receiving data

    RTS         Green            On              RTS signal is high

    RTS         Green            Off              RTS signal is low

    DCD         Yellow           On            Carrier signal detected

    DCD         Yellow           Off         Carrier signal not detected

    TEST         Red             On             Self-test in progress

    TEST         Red             Off          Self-test not in progress

     AL          Red             On            Analog loopback test in
                                                      progress

     AL          Red             Off         Analog loopback test not in
                                                      progress

    RDL          Red             On          Remote digital loopback test
                                                     in progress

    RDL          Red             Off         Remote digital loopback test
                                                   not in progress

