
  CONST
    ioc$dt_mt679_5        =   1(16),
    ioc$dt_mt679_6        =   2(16),
    ioc$dt_mt679_7        =   3(16),
    ioc$dt_mt679_2        =   4(16),
    ioc$dt_mt679_3        =   5(16),
    ioc$dt_mt679_4        =   6(16),
    ioc$dt_mt677_2        =   7(16),
    ioc$dt_mt677_3        =   8(16),
    ioc$dt_mt677_4        =   9(16),
    ioc$dt_mt667_2        =  0a(16),
    ioc$dt_mt667_3        =  0b(16),
    ioc$dt_mt667_4        =  0c(16),
    ioc$dt_mt669_2        =  0d(16),
    ioc$dt_mt669_3        =  0e(16),
    ioc$dt_mt669_4        =  0f(16),
    ioc$dt_mt639_1        =  10(16),
    ioc$dt_mt698_3x       =  11(16),
    ioc$dt_mt5682_1x      =  12(16),
    ioc$highest_tape_unit =  99(16),

    ioc$lowest_disk_unit  = 100(16),
    ioc$highest_disk_unit = 1ff(16),

    ioc$dt_ms844_4x       = 100(16),
    ioc$dt_ms885_1x       = 101(16),
    ioc$dt_ms885_42       = 102(16),
    ioc$dt_ms834_2        = 103(16),
    ioc$dt_msfsd_2        = 104(16),
    ioc$dt_ms895_2        = 105(16),
    ioc$dt_mshydra        = 106(16),
    ioc$dt_ms9836_1       = 107(16),
    ioc$dt_msxmd_3        = 108(16),
    ioc$dt_ms5832_1       = 109(16),
    ioc$dt_ms5832_2       = 10a(16),
    ioc$dt_ms5833_1       = 10b(16),
    ioc$dt_ms5833_1p      = 10c(16),
    ioc$dt_ms5833_2       = 10d(16),
    ioc$dt_ms5833_3p      = 10e(16),
    ioc$dt_ms5833_4       = 10f(16),
    ioc$dt_ms5838_1       = 110(16),
    ioc$dt_ms5838_1p      = 111(16),
    ioc$dt_ms5838_2       = 112(16),
    ioc$dt_ms5838_3p      = 113(16),
    ioc$dt_ms5838_4       = 114(16),
    ioc$dt_ms47444_1      = 115(16),
    ioc$dt_ms47444_1p     = 116(16),
    ioc$dt_ms47444_2      = 117(16),
    ioc$dt_ms47444_3p     = 118(16),
    ioc$dt_ms47444_4      = 119(16),
    ioc$dt_ms5837_1       = 11a(16),
    ioc$dt_ms5837_1p      = 11b(16),
    ioc$dt_ms5837_2       = 11c(16),
    ioc$dt_ms5837_3p      = 11d(16),
    ioc$dt_ms5837_4       = 11e(16),
    ioc$dt_msntdd_1       = 11f(16),
    ioc$dt_msntdd_2       = 120(16),
    ioc$dt_msntdd_3       = 121(16),
    ioc$dt_msntdd_4       = 122(16),
    ioc$dt_msntdd_5       = 123(16),
    ioc$dt_msntdd_6       = 124(16),

    ioc$dt_mdi_1          = 200(16),
    ioc$dt_map_1          = 201(16),
    ioc$dt_map_cmi_1      = 202(16),
    ioc$dt_lcn_1          = 204(16),
    ioc$dt_file_server    = 205(16),
    ioc$dt_ica_2          = 206(16),
    ioc$dt_expresslink    = 207(16);

{  Foreign device unit type:

 CONST
   ioc$dt_foreign_device  = 300(16);

{  Control Module Definitions:

  CONST
    ioc$cm_10395_1        = 1,
    ioc$cm_isd_2          = 2;

  TYPE
    iot$unit_type = 0 .. 0ffff(16);
