Rockwell Automation 8720MC High Performance Drives Installation Manual - Manual (Page 84)

Publication 8720MC-IN001D-EN-P — December 2002
3-22 Connecting Your 8720MC
Connecting Your SERCOS
Fiber Optic Cables This procedure assumes you have your ControlLogix chassis with
1756-MxxSE interface and 8720MC SERCOS interface system(s)
mounted and are ready to connect the fiber-optic cables.
The SERCOS fiber-optic ring is connected using the SERCOS Receive
and Transmit connectors. Refer to Figure 2.4 for the location of the
connectors on your 8720MC drive(s) and Figure 3.8 to locate the
connectors on your 1756-MxxSE interface module.
Figure 3.8
SERCOS Fiber Optic Connections
Note: Fiber optic cable lengths of 0.3 m (4.0 in.) to 32 m (105.0 ft) are
available in plastic or glass. Lengths of 50 m (164.2 ft) to 200 m
(656.7 ft) are available in glass only.
SERCOS interface TM
Tx (rear)
Rx (front)
OK CP
SERCOS Receive Connector, Rx (front)
SERCOS Transmit Connector, Tx (rear)
1756-MxxSE SERCOS interface Module
Front View
Bottom View