14
                                                                           
General DataComm Industries, Inc. and Subsidiaries
Calculation of Earnings per Share
(In thousands except per share data) 
                                                         Exhibit 11
                                                        

                
                
                                             Three months ended        Nine months ended
                                                 June 30,               June 30,
                                              --------------          --------------
                                              1994        1993        1994        1993
                                             ------      ------      ------      ------
                                                                         
Primary earnings per share:
   ---------------
Weighted average number of 
  common shares outstanding                  16,790      15,770      16,317      15,571 
                                                                                                                                    
                                                                                                                             
Assumed exercise of certain stock                                                                                   
  options                                        -        1,545          -        1,176   
                                             ------      ------      ------      ------
                                             16,790      17,315      16,317      16,747 
                                             ======      ======      ======      ======
Income (loss) before cumulative effect
  of accounting change                        ($502)     $1,283     ($3,188)     $4,752 
Cumulative effect of change in accounting                                                                           
  for post-retirement benefits                     -          -        (117)         -
                                              ------      ------      ------      ------
Net income (loss)                             ($502)     $1,283     ($3,305)     $4,752 
                                              ======      ======      ======      ======
                
Earnings (loss) per share:
 Income (loss) before cumulative effect
  of accounting change                       ($0.03)      $0.07      ($0.19)      $0.28 
 Cumulative effect of change in accounting                                                                         
 for post-retirement benefits                    -           -       ($0.01)          -                           
                                             ------      ------      ------      ------
Earnings (loss) per share                    ($0.03)      $0.07      ($0.20)      $0.28 
                                             ======      ======      ======      ======
Fully diluted earnings per share:
- - --------------------------------
Weighted average number of
  common shares outstanding                  16,790      15,770      16,317      15,571 
                                                                                                                                    
                                                                                                                             
Assumed exercise of certain stock                                                                                   
 options                                        -        1,670          -         1,653                           
                                                                                                                           
                                            ------      ------      ------       ------
                                            16,790      17,440      16,317       17,224 
                                            ======      ======      ======       ======
Income (loss) before cumulative effect
 of accounting change                        ($502)     $1,283     ($3,188)     $ 4,752 
Cumulative effect of change in accounting                                                                           
 for post-retirement benefits                    -           -        (117)         -
                                             ------     ------     -------       ------

Net income (loss)                            ($502)     $1,283     ($3,305)     $ 4,752 
                                             ======     ======      ======       =======
Earnings (loss) per share:                                                                                          
 Income (loss) before cumulative effect
   of accounting change                     ($0.03)      $0.07      ($0.19)      $0.28 
 Cumulative effect of change in accounting                                                                        
   for post-retirement benefits                 -           -       (0.01)          -
                                            ------      ------      ------      ------
Earnings (loss) per share                   ($0.03)      $0.07      ($0.20)      $0.28 
                                            ------      ------      ------      ------