QUATECH, INC.

CTM-10/CTM-11

Category               Counter/timer
Chipset Controller     Unidentified
I /O Options Supported Timing signal input via module connector
Maximum Onboard Memory N/A

[Image]

                                CONNECTIONS

          Purpose            Location          Purpose           Location

    Input/Output signal        H1           Expansion card         H2
         connector                            connector

                                SIGNAL TYPE

     Setting         J2        J3       J4        J5       J6       J7

  Preconditioned    Jumper   Jumper    Jumper   Jumper   Jumper    Jumper
                      A        A         A        A        A         A

    Mechanical      Jumper   Jumper    Jumper   Jumper   Jumper    Jumper
      switch          B        B         B        B        B         B

    Non-ideal       Jumper   Jumper    Jumper   Jumper   Jumper    Jumper
                      C        C         C        C        C         C

  Note: The jumpers indicated are in the closed position.

                   CHANNEL 0 EXTERNAL LEVEL INPUT SIGNAL

         Setting                J8/jumper A             J10/jumper A

   Counter 0 level input          Closed                   Closed
      signal enabled

   Counter 0 level input           Open                     Open
     signal disabled

                   CHANNEL 1 EXTERNAL LEVEL INPUT SIGNAL

         Setting                J9/jumper A             J10/jumper A

   Counter 1 level input          Closed                   Closed
      signal enabled

   Counter 1 level input           Open                     Open
     signal disabled

                                COUNTER

       Setting         J5/jumper D      J6/jumper D      J7/jumper D

  Counter 0 enabled       Closed            N/A              N/A

  Counter 1 enabled        N/A            Closed             N/A

  Counter 2 enabled        N/A              N/A            Closed

                             COUNTER CASCADING

      Setting          J6/jumper E       J7/jumper E       J7/jumper F

  Counters 0 and 1       Closed             Open               Open
      cascaded

   Counter 0 and 2        Open             Closed              Open
      cascaded

   Counter 1 and 2        Open              Open              Closed
      cascaded

      All three          Closed             Open              Closed
      counters
      cascaded

                          PULSE WIDTH MEASUREMENT

    Setting      J5/jumper D    J6/jumper E    J8/jumper B   J9/jumper B

  Measured at      Closed          N/A           Closed          N/A
   Counter 0

  Measured at        N/A          Closed          N/A           Closed
   Counter 1

  Note (1):For single pulse width measurement, connect the input signal
  to pins 10 and 11 of header H1.

  Note (2):For pulse width measurement between two pulses, connect one
  signal to pin 10 of header H1 and the other signal to pin 11 of header
  H1.

                       MISCELLANEOUS TECHNICAL NOTES

  The CTM-10/CTM-11 is a modular daughter-card designed to work with the
  Quatech PXB-721 or MXI-241.

  Header H1 signal connections are as follows: pins 1 - 3 = CLK 0 - 2,
  respectively, pins 4 - 6 = Pulse Output 0 - 2, respectively, pins 7 - 9
  = External Input 0 - 2, respectively, pins 10 and 11 = Pulse Input 1
  and 2, respectively. Pins 14 - 26 are connected to ground and pins 12
  and 13 are unused.

  The purpose of all other jumpers on this card are not identified in
  manufacturer's documentation.