Jumpers
                
|       1  3  5  7  9
                
|      ---------------
                
|     | o  o  o  o  o |
                
|     |              
|   Front Of Drive -->
                
|     | o  o  o  o  o |
                
|      ---------------
                
|       2  4  6  8  10
                
|
                 
-------------------------------------------------------
   Single drive:     Pins 3-4 jumpered.
   Two-drive master: Pins 3-4 jumpered and pins 5-6 jumpered.
   Two-drive slave:  Pins 3-4 open and pins 5-6
open.
   LED connected:    Pins 9-10 must be
jumpered to connect to an activity LED
                    
on the controller. Without this jumper, the drive will
                    
work, but there will be no activity light (unless you
                    
connect an LED to the connector on the front of the
                    
drive itself).