*COMDECK HEADER 
      ITEM# ABHABT,U,0,0,6   #ABHABT U(0,0,6);   # APP. BLOCK TYPE    # 
      ITEM# ABHADR,U,0,6,12  #ABHADR U(0,6,12);  #ADDRESS             # 
      ITEM# ABHABN,U,0,18,18 #ABHABN U(0,18,18); #APP. BLOCK NUMBER   # 
      ITEM# ABHACT,U,0,36,4  #ABHACT U(0,36,4);  #APP. CHAR. TYPE     # 
      ITEM# ABHIBU,U,0,40,1  #ABHIBU U(0,40,1);  #INPUT BLOCK UNDELIV.# 
      ITEM# ABHTRU,U,0,42,1  #ABHTRU U(0,42,1);  # TRUNCATED DATA     # 
      ITEM# ABHBRK,U,0,41,1  #ABHBRK U(0,41,1);  # BREAK FLAG          #
      ITEM# ABHUBF,U,0,41,1  #ABHUBF U(0,41,1);  # BREAK FLAG          #
      ITEM# ABHNCP,U,0,43,1  #ABHNCP U(0,43,1);  #NO CURSOR POSITIONING#
      ITEM# ABHNFE,U,0,44,1  #ABHNFE U(0,44,1);  #NO FORMAT EFFECTOR  # 
      ITEM# ABHXPT,U,0,45,1  #ABHXPT U(0,45,1);  #TRANSPARENT BIT     # 
      ITEM# ABHCAN,U,0,46,1  #ABHCAN U(0,46,1);  #CANCEL FLAG         # 
      ITEM# ABHBIT,U,0,47,1  #ABHBIT U(0,47,1);  #PE OR AUTO INPUT    # 
      ITEM# ABHDBC,U,0,40,8  #ABHDBC U(0,40,8);  #DBC                 # 
      ITEM# ABHTLC,U,0,48,12 #ABHTLC U(0,48,12); #TEXT LENGTH         # 
      ITEM# ABHWORD,U,0,0,60 #ABHWORD U(0,0,60); #WHOLE ABH WORD      # 
                                                                       #
*     THE FOLLOWING FIELDS ARE APPLICABLE IN THE SPECIAL NETWORK ABH
*     FOR THE SUPERVISORS:  
                                                                       #
      ITEM# ABHDN,U,0,6,8    #ABHDN  U(0,6,8);   # DESTINATION NODE    #
      ITEM# ABHSN,U,0,14,8   #ABHSN  U(0,14,8);  # SOURCE NODE         #
      ITEM# ABHCN,U,0,22,8   #ABHCN  U(0,22,8);  # CONNECTION NUMBER   #
      ITEM# ABHNBH,U,0,6,24  #ABHNBH U(0,6,24);  # DN/SN/CN            #
      ITEM# ABHBT,U,0,30,4   #ABHBT  U(0,30,4);  # BLOCK TYPE          #
