Rockwell Automation 8520 9/Series CNC Integration Maintenance Manual Documentation Set - Manual (Page 502)

Section 9A
Operator Interface
9A-35
Figure 9A.20 shows the output circuit diagram for the MTB I/O module.
Figure 9A.20
MTB I/O Module Output Circuit Diagram
Fiber
optics
Converted
from optical
to electrical
signal
Push-Button MTB Panel
Push-Button MTB Panel I/O Module
Load
Operator Panel
DC power
supply
11860-I
+12V
Common
Output
Common
Table 9A.Q shows the connectors used to make the fiber optic connections
to the I/O ring. Each module connected to the system I/O ring has an
optical transmitter and receiver. Fiber optic cables connect transmitters to
receivers to form the I/O ring.
Table 9A.Q
MTB I/O Module Fiber Optic Connectors
Connector On
Motherboard
Connected To Remark
OP11 (RED) Receiver on next module in I/O ring Output
OP12 (BLACK) Transmitter on previous module in I/O ring Input
9A.4.1.2
MTB Panel I/O Module Fiber
Optic Connection