*COMDECK CONSTX25 
_?
      _#X25 TIP CONNECTION TYPES#?
  
      N0XUNDEF    = 0;                      _UNDEFINE SUBTIP           ?
      N0XPAD      = 1;                      _PAD SUBTIP CONNECTION     ?
      N0XITML     = 2;                      _INTERACTIVE X25 TERMINAL  ?
      N0XAPPL     = 3;                      _APPL TO APPL CONNECTION   ?
      N0X1CDC     = 4;                      _RESERVED FOR CDC          ?
      N0X2CDC     = 5;                      _RESERVED FOR CDC          ?
      N0X1USR     = 6;                      _USER SUBTIP CONNECTION    ?
      N0X2USR     = 7;                      _USER SUBTIP CONNECTION    ?
_ 
*     X.25 PAD CNF/TE 
*     MAXIMUM NUMBER OF PAD PARAMETERS + 1
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      PADMAX      = 17;                     _PAD LIST WITH TRAILER (0) ?
  
      X1FIRST  = 1;                         _FIRST INDEX IN X0ENTRY    ?
      X1LST    = 20;                        _MUST BE >= NUMBER OF ENT  ?
                                            _FOR THE BIGGEST X0ENTRY   ?
      X1CLEAR  = 1; 
      X1RESET  = 2; 
      X1RSTART = 3; 
_ 
* * * PACKET SWITCHING NETWORKS TYPES                                  *
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      X9DATAPAC  = 1; 
      X9TELENET  = 2; 
      X9TRANSPAC = 3; 
      X9TYMNET   = 4; 
      X9CDSN     = 5; 
      X9UNINET   = 6; 
      X9C120     = 7; 
      X9S253     = 253; 
      X9S254     = 254; 
      X9S255     = 255; 
  
      X9LPSN     = X9C120;                  _LAST COMMERCIAL PSN       ?
      X9FSITE    = X9S253;                  _FIRST SITE-DEFINED PSN    ?
      X9OFFSET   = 245;  _ = X9FSITE - X9LPSN - 1.....LEAP OF NUMBERS  ?
      X9PSNLAST  = 10;   _ = X9LPSN + 256 - X9FSITE...NUMBER OF ENTRIES?
_ 
* * * NOTE -- IF YOU ADD/DELETE COMMERCIAL PSN-S OR SITE-DEFINED
* * *         PSN-S TO THE ABOVE LIST, YOU MUST SET X9LPSN, X9FSITE,
* * *         X9OFFSET AND X9PSNLAST CORRECTLY.  ALSO, CHANGES MUST BE
* * *         MADE IN X25NETDEF AT NETWORK..MAC TO REFLECT THE CHANGE.
* * *         ALSO, THERE IS A TABLE FOR CHECKING VALID RANGE IN X25AT
* * *         AS AN ENTRY OF X25LCB: ACTBL..BZTRANSTYPE,D2VM. THE VAULE 
* * *         MUST BE CORRECTLY SET.
* * * 
* * *         X9LPSN    = THE HIGHEST CDC-DEFINED PSN NUMBER
* * *         X9FSITE   = THE LOWEST USER-DEFINED PSN NUMBER
* * *         X9OFFSET  = X9FSITE - X9LPSN - 1 = UNDEFINED PSN NUMBERS
* * *         X9PSNLAST = X9LPSN + 256 - X9FSITE = DEFINED PSN NUMBERS
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