Rockwell Automation 8520 9/Series CNC Integration Maintenance Manual Documentation Set - Manual (Page 257)

Section 5A
9/440 Resolver--based CNC/Drive System
5A-11
Important: Each feedback port must be configured in AMP to identify
which motor the feedback is from as well as the type, direction, and
resolution of the feedback. Refer to your 9/Series AMP Reference manual
for details.
Bottom View
Encoder 1
J9
Encoder 2
J10
Resolver 1
J1
Resolver 2
J2
Resolver 3
J3
Resolver 4
J4
Serial Port B
J7
Serial Port A
J6
Fiber Optic
OUT
Fiber Optic
IN
Video Output
Signal
J8
Front of System Module
System Module
Bottom View
Note: Encoder 3 input connector (J11) is
accessible only through the front cover.