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                32.1    MODULE SPECIFICATIONS  . . . . . . . . . . . . .  32-1
                32.1.1    Module Width:  . . . . . . . . . . . . . . . .  32-1
                32.1.2    Number of Output Channels: . . . . . . . . . .  32-1
                32.1.3    Output Voltage:  . . . . . . . . . . . . . . .  32-1
                32.1.4    Output Voltage Tolerance:  . . . . . . . . . .  32-1
                32.1.5    Output Pulse Width:  . . . . . . . . . . . . .  32-2
                32.1.6    Output Protection: . . . . . . . . . . . . . .  32-2
                32.1.7    Response Time: . . . . . . . . . . . . . . . .  32-2
                32.1.8    CAMAC Codes, X and Q Responses:  . . . . . . .  32-2
                32.1.9    CAMAC Speed: . . . . . . . . . . . . . . . . .  32-3
                32.1.10   Power Required:  . . . . . . . . . . . . . . .  32-3
                32.1.11   Protection:  . . . . . . . . . . . . . . . . .  32-3
                32.1.12   Operating Temperature Range: . . . . . . . . .  32-4
                32.2    FRONT PANEL  . . . . . . . . . . . . . . . . . .  32-4
                32.2.1    Front Panel Indicators:  . . . . . . . . . . .  32-4
                32.2.2    Front Panel Connectors:  . . . . . . . . . . .  32-4
                32.3    DRAWING PACKAGE NUMBER . . . . . . . . . . . . .  32-5
                32.4    RESPONSIBLE ENGINEER . . . . . . . . . . . . . .  32-5

                                      CHAPTER 32
                          PULSED POWER OUTPUT MODULE (PPOM)
        This module is designed to provide a plus or minus 24 Volt pulse to  a
        selected  output,  with  up  to one Ampere of drive current.  Only one
        output may be selected at a time.  The nominal output pulse  width  is

        0.25  seconds.   This  time may be extended by issuing a repeat of the

        output command to the unit.
        The module is intended to be  a  modem  interface  to  the  old  linac
        Digital Output System.  New devices should use the IDOM.

        32.1  MODULE SPECIFICATIONS


        32.1.1  Module Width:

        Single.

        32.1.2  Number of Output Channels:

        32, (numbered 0 through 31).

        32.1.3  Output Voltage:

        0 unless pulsed, then +24, or -24 Volts nominal for 250  milliseconds;
        the return side of the load may be externally grounded.

        32.1.4  Output Voltage Tolerance:

        -2.5 Volts for +24 Volt output, +/- 1 Volt for  0  Volt  output,  +2.5
        Volts for -24 Volt output.
        ______________________________
        This chapter is excerpted from TN-83-02.



        PULSED POWER OUTPUT MODULE (PPOM)                            Page 32-2


        32.1.5  Output Pulse Width:

        250 +/- 25 milliseconds, unless extended by another write  command  to
        the same output, and of the same polarity.
        If a output is active, and the command is a  repeat  of  the  previous
        command,   the   output   pulse  is  extended  (retriggered)  for  250
        milliseconds from the time of the present command.
        The output may be cleared to zero by a clear command.

        32.1.6  Output Protection:

        #36 wire fuse links on +/- 24 Volt sources, back-to-back 27 Volt Zener
        diodes from each output to ground.

        32.1.7  Response Time:

        100 microseconds maximum from Dataway to output.

        32.1.8  CAMAC Codes, X and Q Responses:


        32.1.8.1  Read Functions: -

        F0 A0 reads back the last F6 A0 command.  X=1.  Q=1 if an output pulse
        is  still  active, and both +/- 24 Volt sources and fuse links are OK.
        Q=0 if there is no  output  pulse  active,  or  a  source  voltage  is
        missing.

        32.1.8.2  Write Functions: -

        F16 A0 causes the Signal side of one output channel to  become  active
        and  pulse  from  0  Volts  to  either  +24 Volts or -24 Volts for 250
        milliseconds, based on the following control word:
        W              W|WWWW|
        1              5|4321|
        6
        -----   --------------
        P              C|HANL|
                       N|UMBR|
        The channel # is coded 0 through 31 in Bits W1 through W5, with W1 the
        LSB.
                  Output = +24 Volts if P=0.
                  Output = -24 Volts if P=1.



        PULSED POWER OUTPUT MODULE (PPOM)                            Page 32-3

        X=1; Q=1 if both 24 Volt sources are OK and  1)  no  output  pulse  is
        active,  or  2)  an output pulse is active and this is a repeat of the
        previous F16 A0 command.  Otherwise, Q=0.

        32.1.8.3  Command Functions: -

              o  F9 A0 shall cause an active output pulse to terminate  early.
                 The  command  storage  latch  is  also  cleared (will contain
                 channel = 0).  X=1; Q=1 if an output is active, and both  +/-
                 24 Volt sources are OK, else Q=0.
              o  F27 A0 tests the +/- Volt sources only.  X=1.   Q=1  if  both
                 sources and fuse links are OK, otherwise Q=0.

        32.1.8.4  Other X and Q Responses: -

        X=Q=0 for all other codes and conditions.

        32.1.8.5  C, Z, and I: -

        Z*S2 shall terminate any active output.  C and I  have  no  effect  on
        this module.

        32.1.9  CAMAC Speed:

        The module will respond  to  all  CAMAC  cycles  as  defined  in  IEEE
        Standard 583-1978.

        32.1.10  Power Required:

              o  +6 Volts, 600 milliAmps typical, 1.1 Amp maximum
              o  +24 Volts, 3 milliAmps, pulsed = 1 Amp
              o  -24 Volts, 2 milliamps, pulsed = 1 Amp.

        32.1.11  Protection:

        The +6 and both the 24 Volt lines  are  each  protected  with  a  fuse
        consisting  of  a  single  strand  of  #36 tinned copper wire.  Fusing
        current is about 3.5 Amps.



        PULSED POWER OUTPUT MODULE (PPOM)                            Page 32-4


        32.1.12  Operating Temperature Range:

        10 to 65 degrees Celsius.

        32.2  FRONT PANEL


        32.2.1  Front Panel Indicators:

              o  "N" & "X", red LED's,
              o  "Q" & "V", green LED's.
                 ("V" lighted indicate both + and - 24 Volts power present.)

        32.2.2  Front Panel Connectors:

        2 each, AMP P/N 204731-1.
        Pin assignments as follows:
        CHAN   SIGNAL    RETURN  || OTHER SIGNALS
         #                       || CONNECTION / FUNCTION
                                 ||
        00      J1-A1     J1-A2  ||
        01       1-A3      A-A4  || J1-C9    N C
        02       1-A5      1-A6  ||
        03       1-A7      1-A8  || J1-C10   Ground
        04       1-A9      1-A10 ||
        05       1-A11     1-A12 || J1-C11   N C
        06       1-B1      1-B2  ||
        07       1-B3      1-B4  || J1-C12   Ground
        08       1-B5      1-B6  ||
        09       1-B7      1-B8  ||
        10       1-B9      1-B10 ||
        11       1-B11     1-B12 ||
        12       1-C1      1-C2  || J2-C9    N C
        13       1-C3      1-C4  ||
        14       1-C5      1-C6  || J2-C10   Ground
        15      J1-C7     J1-C8  ||
        16      J2-A1     J2-A2  || J2-C11   N C
        17       1-A3      1-A4  ||
        18       1-A5      1-A6  || J2-C12   Ground
        19       1-A7      1-A8  ||
        20       1-A9      1-A10 ||
        21       1-A11     1-A12 ||
        22       1-B1      1-B2  ||
        23       1-B3      1-B4  ||
        24       1-B5      1-B6  ||
        25       1-B7      1-B8  ||
        26       1-B9      1-B10 ||



        PULSED POWER OUTPUT MODULE (PPOM)                            Page 32-5

        27       1-B11     1-B12 ||
        28       1-C1      1-C2  ||
        29       1-C3      1-C4  ||
        30       1-C5      1-C6  ||
        31      J2-C7     J2-C8  ||

        32.3  DRAWING PACKAGE NUMBER

        135-567
        TN-83-02.

        32.4  RESPONSIBLE ENGINEER

        J.  Kieffer