Rockwell Automation 8520 9/Series CNC Integration Maintenance Manual Documentation Set - Manual (Page 614)

Section 11A
Connecting 1394 Digital Drive Systems
11A-9
The 1394 digital drive receives configuration information through the
9/Series fiber optic ring. The drive also has the ability to pass drive error
and status back to the CNC through this fiber optic connection.
Connections to the fiber optic ring are made on the bottom of the system
module to the back of the CNC interface board. Refer to NO TAG for
details on constructing fiber optic cables.
CNC 3
Fiber Optic In (black)
Fiber Optic Out (red)
(FB0---FB3)
Connectors
Feedback
CNC 4
CNC 2
Bottom View
CNC 1
Input Wiring Board
Important: I/O ring diagnostics for the 1394 Digital Drive is available and
discussed on page 15A-29.